Datasheet STRW6052S Specification

STR-W6000S Series

PWM Off-Line Switching Regulator ICs

Features and Benefits

▪ Current mode PWM control
▪ Brown-In and Brown-Out function: auto-restart, prevents

excess input current and heat rise at low input voltage

▪ Auto Standby function: improves efficiency by Burst

mode operation in light load

▫ Normal load operation: PWM mode

▫ Light load operation: Burst mode
▪ No load power consumption < 30 mW
▪ Operating frequency, f

OSC(AVG)

▪ Random Switching function: reduces EMI noise, and

simplifies EMI filters
▪ Slope Compensation function: avoids subharmonic

oscillation
▪ Leading Edge Blanking function

Continued on the next page…

Package: TO-220F-6L

Not to scale

(typ) = 67 kHz

Description

The STR-W6051S, STR-W6052S, and STR-W6053S are
power ICs for switching power supplies, incorporating a
power MOSFET and a current mode PWM controller IC in
one package.

To achieve low power consumption, these products include
a startup circuit and a standby function in the controller. The
switching modes are automatically changed according to load
conditions: in normal operation, PWM mode, and in light load
conditions, burst mode. The rich set of protection features
helps to realize low component counts, and high performance­to-cost power supply.

Applications:

Switching power supplies for electronic devices such as:

• Home appliances

• Digital appliances

• Office automation (OA) equipment

• Industrial apparatus

• Communication facilities

VA C

C(CR) damper
snubber

STR-W6000S-DS

BR1

C1

Typical Application Circuit

CRD clamp snubber

C5 R1

D1

U1

T

S

D/ST

1

C4

R

OCP

-

6

R

W

CP

CC

S/O

V

4567

3

S

0

0

0

R

FB /O LP

GND

B

C3

PC1

C10

R

A

R

B

D2DR2

C2

R

C

SANKEN ELECTRIC CO., LTD.

http://www.sanken-ele.co.jp/en/

C52

R51

R53

L51

R55

R56

VOUT

R54

C53

GND

February 27, 2013

D51

T1

PC1

P

C51

S

C9

R52

U51

STR-W6000S
Series

Features and Benefits (continued)

▪ Audible Noise Suppression function during Standby mode
▪ Protection features

▫ Overcurrent protection (OCP): pulse-by-pulse,

with input compensation function

Selection Guide

Power MOSFET Output Power*, P

Part Number

STR-W6051S 650 3.95 45 30
STR-W6052S 650 2.8 60 40

STR-W6053S 650 1.9 90 60
*The listed output power is based on the thermal ratings, and the peak output power can be 120% to
140% of the value stated here. At low output voltage and short duty cycle, the output power may be less
than the value stated here.

V

(min)

DSS

(V)

PWM Off-Line Switching Regulator ICs

▫ Overvoltage protection (OVP): auto-restart
▫ Overload protection (OLP): auto-restart, with timer
▫ Thermal shutdown protection (TSD): auto-restart

(W)

R

DS(ON)

(Ω)

(max)

230 VAC

OUT

85 to

265 VAC

STR-A6000S-DS

SANKEN ELECTRIC CO., LTD.

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STR-W6000S
Series

The polarity value for current specifies a sink as "+," and a source as “,” referencing the IC.

PWM Off-Line Switching Regulator ICs

Absolute Maximum Ratings Unless otherwise specified, T

= 25°C

A

Characteristic Symbol Conditions Pins Rating Unit

STR-W6051S

Drain Peak Current

1

I

DPEAK

STR-W6052S 7.0 A

Single pulse 1  3

STR-W6053S 9.5 A

STR-W6051S

Maximum Switching Current

2

I

DMAX

STR-W6052S 7.0 A

Single pulse, T
125°C

= –20°C to

A

1  3

STR-W6053S 9.5 A

Avalanche Energy

3

S/OCP Pin Voltage V

Control Part Input Voltage V

FB/OLP Pin Voltage V

FB/OLP Pin Sink Current I

BR Pin Voltage V

BR Pin Sink Current I

E

AS

OCP

CC

FB

FB

BR

BR

STR-W6051S

STR-W6052S

STR-W6053S

Single pulse, V
L = 20 mH, I

Single pulse, V
L = 20 mH, I

Single pulse, V
L = 20 mH, I

DD

LPEAK

DD

LPEAK

DD

LPEAK

= 99 V,
= 2 A

= 99 V,
= 2.3 A

= 99 V,
= 2.7 A

1  3

3  5 2 to 6 V

4  532V

6  5 0.3 to 14 V

6  5 1.0 mA

7  5 0.3 to 7 V

7  5 1.0 mA

STR-W6051S

Power Dissipation of MOSFET

4

P

D1

STR-W6052S 23.6 W

STR-W6053S 26.5 W

With infinite heatsink

1  3

Without heatsink 1.3 W

Power Dissipation of Control Part P

Internal Frame Temperature in
Operation

5

Operating Ambient Temperature T

Storage Temperature T

Channel Temperature T

1

Refer to MOSFET Safe Operating Area Curve.

2

The maximum switching current is the drain current determined by the drive voltage of the IC and threshold voltage ( V

3

Refer to MOSFET Avalanche Energy Derating Coefficient Curve.

4

Refer to MOSFET Temperature versus Power Dissipation Curve.

5

The recommended internal frame temperature, TF , is 105°C (max).

D2

T

F

OP

stg

ch

V

CC × ICC

4  5 0.13 W

5.0 A

5.0 A

47 mJ

62 mJ

86 mJ

22.3 W

– 20 to 115 °C

– 20 to 115 °C

– 40 to 125 °C

– 150 °C

) of the MOSFET.

th

STR-A6000S-DS

SANKEN ELECTRIC CO., LTD.

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February 27, 2013

STR-W6000S
Series

PWM Off-Line Switching Regulator ICs

Electrical Characteristics of Control Part Unless otherwise specified, T

= 25°C, VCC = 18 V

A

Characteristic Symbol Conditions Pins Min. Typ. Max. Unit

Operation Start Voltage V

Operation Stop Voltage* V

Circuit Current in Operation I

Minimum Start Voltage V

Startup Current I

Startup Current Threshold Biasing Voltage* V

Average Operation Frequency f

CC(ON)

CC(OFF)

CC(ON)VCC

ST(ON)

STARTUPVCC

CC(BIAS)ICC

OSC(AVG)

= 12 V 4 – 5 – – 2.5 mA

= 13.5 V 4 – 5 3.9 2.5 1.1 mA

= 100 A 4 – 5 8.5 9.5 10.5 V

4 – 5 13.8 15.3 16.8 V

4 – 5 7.3 8.1 8.9 V

4 – 5 – 40 – V

1 – 5 60 67 74 kHz

Frequency Modulation Deviation f 1 – 5 – 5 – kHz

Maximum Duty Cycle D

Leading Edge Blanking Time t

MAX

BW

1 – 5 63 71 79 %

– – 390 – ns

OCP Compensation Coefficient DPC – – 18 – mV/s

OCP Compensation Duty Cycle Limit D

OCP Threshold Voltage at Zero Duty Cycle V

OCP Threshold Voltage at 36% Duty Cycle V

Maximum Feedback Current I

FB(MAX)VCC

Minimum Feedback Current I

FB/OLP Pin Oscillation Stop Threshold
Voltage

V

OLP Threshold Voltage V

OLP Delay Time t

OLP Operation Current I

FB/OLP Pin Clamp Voltage V

CC(OLP)VCC

FB(CLAMP)

Brown-In Threshold Voltage V

Brown-Out Threshold Voltage V

BR Pin Clamp Voltage V

BR(CLAMP)VCC

BR Function Disabling Threshold Voltage V

VCC Pin OVP Threshold Voltage V

Thermal Shutdown Temperature T

*V

CC(BIAS)

> V

CC(OFF)

always.

DPC

OCP(L)

OCP(H)VCC

FB(MIN)

FB(STB)

FB(OLP)

OLP

BR(IN)VCC

BR(OUT)VCC

BR(DIS)VCC

CC(OVP)

j(TSD)

= 32 V 3 – 5 0.79 0.88 0.97 V

= 12 V 6 – 5 340 230 150 A

= 12 V 4 – 5 – 300 – A

= 32 V 7 – 5 5.2 5.6 6 V

= 32 V 7 – 5 4.45 4.8 5.15 V

= 32 V 7 – 5 6 6.4 7 V

= 32 V 7 – 5 0.3 0.48 0.7 V

––36–%

3 – 5 0.70 0.78 0.86 V

6 – 5 30 15 7 A

6 – 5 0.85 0.95 1.05 V

6 – 5 7.3 8.1 8.9 V

6 – 5 54 68 82 ms

6 – 5 11 12.8 14 V

4 – 5 26 29 32 V

– 130 – – °C

STR-A6000S-DS

SANKEN ELECTRIC CO., LTD.

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STR-W6000S
Series

PWM Off-Line Switching Regulator ICs

Electrical Characteristics of MOSFET Unless otherwise specified, T

Characteristic Symbol Conditions Pins Min. Typ. Max. Unit

Drain-to-Source Breakdown Voltage V

Drain Leakage Current I

On-Resistance R

Switching Time t

Thermal Resistance R

DSS

DSS

DS(ON)

f

ch-F

STR-W6051S

STR-W6052S – – 2.8 

STR-W6053S – – 1.9 

STR-W6051S

STR-W6052S – – 2.26 °C/W

STR-W6053S – – 1.95 °C/W

The thermal
resistance between
the channels of the
MOSFET and the
internal frame.

is 25°C

A

1 – 3 650 – – V

1 – 3 – – 300 A

– – 3.95 

1 – 3

1 – 3 – – 250 ns

– – 2.63 °C/W

–

STR-A6000S-DS

SANKEN ELECTRIC CO., LTD.

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February 27, 2013

STR-W6000S
Series

S. O. A. Temperature Derating Coefficient Curve

100

PWM Off-Line Switching Regulator ICs

Characteristic Performance

STR-W6051S

MOSFET Safe Operating Area Curve

10

T

= 25°C

A

Single Pulse

0.1 ms

80

60

40

Safe Operating Area

20

0

Temperature Derating Coefficient (%)

0 25 50 75 100 125 150

Internal Frame Temperature, TF (°C)

MOSFET Avalanche Energy Derating Coefficient Curve

AS

E

Temperature Derating Coefficient (%)

100

80

60

40

20

0

25 50 75 125100 150

Channel Temperature, Tch (°C)

1 ms

1

(A)

D

Drain Current, I

0.1

To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left

0.01
1 10 100 1000

Drain current limited

by on-resistance

Drain-to-Source Voltage, VDS (V)

MOSFET Temperature versus Power Dissipation Curve

30

(W)

D1

25

PD1 = 22.3 W

20

15

10

5

P

= 1.3 W

D1

0

Allowable Power Dissipation, P

0255075 125100 150

Ambient Temperature, TA (°C)

With infinite heatsink

Without
heatsink

(°C/W)

ch-c

Transient Thermal

Resistance, R

STR-A6000S-DS

0.1

0.01

10

1

-6

10

-5

10

Transient Thermal Resistance Curve

-4

10

-3

10

-2

10

-1

10

Time (s)

6

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February 27, 2013

STR-W6000S
Series

S. O. A. Temperature Derating Coefficient Curve

100

PWM Off-Line Switching Regulator ICs

Characteristic Performance

STR-W6052S

MOSFET Safe Operating Area Curve

10

T

= 25°C

A

Single Pulse

1 ms

0.1 ms

80

60

40

Safe Operating Area

20

0

Temperature Derating Coefficient (%)

0 25 50 75 100 125 150

Internal Frame Temperature, TF (°C)

MOSFET Avalanche Energy Derating Coefficient Curve

AS

E

Temperature Derating Coefficient (%)

100

80

60

40

20

0

25 50 75 125100 150

Channel Temperature, Tch (°C)

1

(A)

D

Drain Current, I

0.1

To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left

0.01
1 10 100 1000

Drain current limited

by on-resistance

Drain-to-Source Voltage, VDS (V)

MOSFET Temperature versus Power Dissipation Curve

30

(W)

PD1 = 23.6 W

D1

25

20

15

10

5

P

= 1.3 W

D1

0

Allowable Power Dissipation, P

0255075 125100 150

Ambient Temperature, TA (°C)

With infinite heatsink

Without
heatsink

(°C/W)

ch-c

Transient Thermal

Resistance, R

STR-A6000S-DS

0.1

0.01

10

1

-6

10

-5

10

Transient Thermal Resistance Curve

-4

10

-3

10

-2

10

-1

10

Time (s)

7

SANKEN ELECTRIC CO., LTD.

February 27, 2013

STR-W6000S
Series

S. O. A. Temperature Derating Coefficient Curve

100

80

60

40

Safe Operating Area

20

0

Temperature Derating Coefficient (%)

0 25 50 75 100 125 150

Internal Frame Temperature, TF (°C)

MOSFET Avalanche Energy Derating Coefficient Curve

100

80

60

AS

E

40

PWM Off-Line Switching Regulator ICs

Characteristic Performance

STR-W6053S

MOSFET Temperature versus Power Dissipation Curve

MOSFET Safe Operating Area Curve

(A)

D

100

10

1

Drain current limited

by on-resistance

1 ms

T

Single Pulse

Drain Current, I

0.1

To use this graph, apply the S.O.A
temperature derating coefficient
taken from the graph at the left

0.01
1 10 100 1000

Drain-to-Source Voltage, VDS (V)

30

PD1 = 26.5 W

(W)

D1

25

20

15

10

With infinite heatsink

= 25°C

A

0.1 ms

Temperature Derating Coefficient (%)

(°C/W)

ch-c

Transient Thermal

Resistance, R

STR-A6000S-DS

20

0

25 50 75 125100 150

Channel Temperature, Tch (°C)

10

1

0.1

0.01

-6

10

-5

10

5

0

Allowable Power Dissipation, P

0255075 125100 150

Transient Thermal Resistance Curve

-4

10

Time (s)

-3

10

SANKEN ELECTRIC CO., LTD.

P

D1

= 1.3 W

Without
heatsink

Ambient Temperature, TA (°C)

-2

10

-1

10

8

February 27, 2013

STR-W6000S
Series

PWM Off-Line Switching Regulator ICs

Functional Block Diagram

Pin List Table

4

7

6

VCC

BR

FB/OLP

6.4 V

12. 8 V

UVLO

Brown-In/
Brown-Out

PWM OSC

7 V

D/S T

S/OCP

GND

1

3

5

Startup

REG

SQ

R

V

CC

V

REG

OLP

Slope

Comp ensa tio n

OVP TS D

OCP

Drain Peak Current

Comp ensa tion

Fe edback

Control

DRV

LEB

D/ST

S/OCP

VCC

GND

FB/OLP

BR

(LF2003)

STR-A6000S-DS

Number Name Function

1

3

4

5

6

7

1 D/ST MOSFET drain, and input of the startup current

2 – (Pin removed)

3 S/OCP MOSFET source, and input of Overcurrent Protection (OCP) signal

4 VCC

Power supply voltage input for Control Part, and input of Overvoltage
Protection (OVP) signal

5 GND Ground

6 FB/OLP

Feedback signal input for constant voltage control signal, and input of
Overload Protection (OLP) signal

7 BR Input of Brown-In and Brown-Out detection voltage

9

SANKEN ELECTRIC CO., LTD.

February 27, 2013

STR-W6000S
Series

PWM Off-Line Switching Regulator ICs

Typical Application Circuits

C52

L51

R51

R55

VA C

BR1

CRD clamp snubber

C5 R1

C1

D1

D51

T1

PC1

P

C51

S

R52

R53

C(CR) damper
snubber

U1

D/ST

134567

S

0

T

0

S

6

-

R

0

W

CP

CC

FB /O LP

S/O

V

GND

C4

R

OCP

C3

R
B

PC1

C10

R

A

R

B

U51

D2DR2

C2

R

C

C9

R56

Typical application circuit example, enabled Brown-In/Brown-Out function (DC line detection)

C52

L51

R51

R55

R53

R56

VA C

BR1

CRD clamp snubber

C5 R1

C1

U1

D/ST

134567

S

0

T

0

S

-

R

6

0

W

CP

CC

R

FB /O LP

S/O

V

GND

B

D1

D2DR2

D51

T1

PC1

P

C51

S

R52

U51

VOUT

R54

C53

GND

VOUT

R54

C53

GND

STR-A6000S-DS

C(CR) damper
snubber

C4

R

OCP

C3

PC1

C2

C9

Typical application circuit example, disabled Brown-In/Brown-Out function

SANKEN ELECTRIC CO., LTD.

10

February 27, 2013

STR-W6000S
Series

Package Diagram

• TO-220F-6L package

• The pin 2 is removed to provide greater creepage and clearance isolation between
the high voltage pin (pin 1: D/ST) and the low voltage pin (pin 3: S/OCP).

PWM Off-Line Switching Regulator ICs

2.8

Unit: mm
Leadform: LF No.2003

10.0±0.2

Gate burr

6×P1.27±0.15=7.62±0.15

Dimensions bet ween roots

1467

523

0.5

4±0.2

6-0.74±0.15

6-0.65

+0.2

-0.1

7.9±0.2

16.9±0.3

5.0±0.5

R-end

+0.2

0.45

-0.1

Dimensions bet ween tips

(5.4)

(

2

-

5.08±0.6

0.5

Front view

R

1

Gate burr indicates protrusion of 0.3 mm (max).
Pin treatment Pb-free. Device composition compliant with the RoHS directive.

4.2±0.2

2.8±0.2

3.2±0.2



2.6±0.1

Dimensions from root

)

0.5

10.4±0.5

0.5 0.5

Side view

Marking Diagram

STR-A6000S-DS

STR
W60xxS

Part Number

YMDD X

Lot Number

Y is the last digit of the year (0 to 9)
M is the month (1 to 9, O, N, or D)
DD is the day (01 to 31)
X is the Sanken Control Symbol

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February 27, 2013

STR-W6000S
Series

PWM Off-Line Switching Regulator ICs

Operating Precautions

In the case that you use Sanken products or design your products
by using Sanken products, the reliability largely depends on the
degree of derating to be made to the rated values. Derating may
be interpreted as a case that an operation range is set by derating
the load from each rated value or surge voltage or noise is consid­ered for derating in order to assure or improve the reliability. In
general, derating factors include electric stresses such as elec­tric voltage, electric current, electric power etc., environmental
stresses such as ambient temperature, humidity etc. and thermal
stress caused due to self-heating of semiconductor products.
For these stresses, instantaneous values, maximum values and
minimum values must be taken into consideration. In addition, it
should be noted that since power devices or IC’s including power
devices have large self-heating value, the degree of derating of
junction temperature affects the reliability significantly.

Because reliability can be affected adversely by improper storage
environments and handling methods, please observe the follow­ing cautions.

Cautions for Storage

• Ensure that storage conditions comply with the standard temper­ature (5 to 35°C) and the standard relative humidity (around 40 to
75%); avoid storage locations that experience extreme changes in
temperature or humidity.

• Avoid locations where dust or harmful gases are present and
avoid direct sunlight.

• Reinspect for rust on leads and solderability of the products that
have been stored for a long time.

Cautions for Testing and Handling

When tests are carried out during inspection testing and other
standard test periods, protect the products from power surges
from the testing device, shorts between the product pins, and
wrong connections. Ensure all test parameters are within the rat­ings specified by Sanken for the products.

Remarks About Using Silicone Grease with a Heatsink

• When silicone grease is used in mounting the products on a
heatsink, it shall be applied evenly and thinly. If more silicone
grease than required is applied, it may produce excess stress.

• Volatile-type silicone greases may crack after long periods of
time, resulting in reduced heat radiation effect. Silicone greases
with low consistency (hard grease) may cause cracks in the mold
resin when screwing the products to a heatsink.

Our recommended silicone greases for heat radiation purposes,
which will not cause any adverse effect on the product life, are
indicated below:

Type Suppliers

G746 Shin-Etsu Chemical Co., Ltd.

YG6260 Momentive Performance Materials Inc.

SC102 Dow Corning Toray Co., Ltd.

Cautions for Mounting to a Heatsink

• When the flatness around the screw hole is insufficient, such as
when mounting the products to a heatsink that has an extruded
(burred) screw hole, the products can be damaged, even with a
lower than recommended screw torque. For mounting the prod­ucts, the mounting surface flatness should be 0.05 mm or less.

• Please select suitable screws for the product shape. Do not use
a flat-head machine screw because of the stress to the products.
Self-tapping screws are not recommended. When using self­tapping screws, the screw may enter the hole diagonally, not
vertically, depending on the conditions of hole before threading
or the work situation. That may stress the products and may cause
failures.

• Recommended screw torque: 0.588 to 0.785 N • m
(6 to 8 kgf • cm).

• For tightening screws, if a tightening tool (such as a driver) hits
the products, the package may crack, and internal stress fractures
may occur, which shorten the lifetime of the electrical elements
and can cause catastrophic failure. Tightening with an air driver
makes a substantial impact. In addition, a screw torque higher
than the set torque can be applied and the package may be dam­aged. Therefore, an electric driver is recommended.

When the package is tightened at two or more places, first pre­tighten with a lower torque at all places, then tighten with the
specified torque. When using a power driver, torque control is
mandatory.

STR-A6000S-DS

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STR-W6000S
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PWM Off-Line Switching Regulator ICs

Soldering

• When soldering the products, please be sure to minimize the
working time, within the following limits:

260 ± 5 °C 10 ± 1 s (Flow, 2 times)

380 ± 10 °C 3.5 ± 0.5 s (Soldering iron, 1 time)

• Soldering should be at a distance of at least 2.0 mm from the
body of the products.

Electrostatic Discharge

• When handling the products, the operator must be grounded.
Grounded wrist straps worn should have at least 1MΩ of resis-

tance from the operator to ground to prevent shock hazard, and it
should be placed near the operator.

• Workbenches where the products are handled should be
grounded and be provided with conductive table and floor mats.

• When using measuring equipment such as a curve tracer, the
equipment should be grounded.

• When soldering the products, the head of soldering irons or the
solder bath must be grounded in order to prevent leak voltages
generated by them from being applied to the products.

• The products should always be stored and transported in Sanken
shipping containers or conductive containers, or be wrapped in
aluminum foil.

STR-A6000S-DS

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STR-W6000S
Series

• The contents in this document are subject to changes, for improvement and other purposes, without notice. Make sure that this is the
latest revision of the document before use.

• Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the prod­ucts herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or
any other rights of Sanken or any third party which may result from its use. Unless otherwise agreed in writing by Sanken, Sanken
makes no warranties of any kind, whether express or implied, as to the products, including product merchantability, and fitness for a
particular purpose and special environment, and the information, including its accuracy, usefulness, and reliability, included in this
document.

• Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semicon­ductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures
including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device
failure or malfunction.

• Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equip­ment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.).

PWM Off-Line Switching Regulator ICs

IMPORTANT NOTES

When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and
its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), and whenever
long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest Sanken sales
representative to discuss, prior to the use of the products herein.

The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required
(aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited.

• When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically
or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance
and proceed therewith at your own responsibility.

• Anti radioactive ray design is not considered for the products listed herein.

• Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken’s distribu­tion network.

• The contents in this document must not be transcribed or copied without Sanken’s written consent.

STR-A6000S-DS

SANKEN ELECTRIC CO., LTD.

14

February 27, 2013