C&H Technology UFB120FA40P User Manual

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Phone – 1-800-274-4284

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SOT-227

1

2

Insulated Ultrafast

Rectifier Module, 120 A

FEATURES

• Two fully independent diodes

• Ceramic fully insulated package
(V

= 2500 VAC)

ISOL

• Ultrafast reverse recovery

• Ultrasoft reverse recovery current shape

• Low forward voltage

• Optimized for power conversion: welding and industrial
SMPS applications

4

3

• Industry standard outline

• Plug-in compatible with other SOT-227 packages

• Easy to assemble

• Direct mounting to heatsink

• Lead (Pb)-free

• Designed and qualified for industrial level

UFB120FA40P

Vishay High Power Products

RoHS

COMPLIANT

DESCRIPTION

The UFB120FA40P insulated modules integrate two state of
the art ultrafast recovery rectifiers in the compact, industry
standard SOT-227 package. The planar structure of the
diodes, and the platinum doping life time control, provide a

PRODUCT SUMMARY

V

R

I

at TC = 65 °C 120 A

F(AV)

t

rr

400 V

35 ns

ultrasoft recovery current shape, together with the
best overall performance, ruggedness and reliability
characteristics.
These devices are thus intended for high frequency
applications in which the switching energy is designed not to
be predominant portion of the total energy, such as in the
output rectification stage of welding machines, SMPS,
dc-to-dc converters. Their extremely optimized stored
charge and low recovery current reduce both over
dissipation in the switching elements (and snubbers) and
EMI/RFI.

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL TEST CONDITIONS MAX. UNITS

Cathode to anode voltage V

Continuous forward current per diode I

Single pulse forward current per diode I

Maximum power dissipation per module P

RMS isolation voltage V

Operating junction and storage temperatures T

J

F

FSM

ISOL

, T

R

TC = 65 °C 60

TC = 25 °C 800

D

Stg

TC at 90 °C 96 W

Any terminal to case, t = 1 minute 2500 V

400 V

A

- 55 to 150 °C °C

Document Number: 94086 For technical questions, contact: [e-mail]
Revision: 25-Apr-08 1

www.vishay.com

UFB120FA40P

Vishay High Power Products

Insulated Ultrafast

Rectifier Module, 120 A

ELECTRICAL SPECIFICATIONS PER DIODE (TJ = 25 °C unless otherwise specified)

PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS

Cathode to anode breakdown voltage V

Forward voltage V

Reverse leakage current I

BR

FM

RM

Junction capacitance C

DYNAMIC RECOVERY CHARACTERISTICS PER DIODE (TJ = 25 °C unless otherwise specified)

PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS

Reverse recovery time t

Peak recovery current I

Reverse recovery charge Q

rr

RRM

IR = 100 µA 400 - -

IF = 60 A - 1.16 1.37

I

= 60 A, TJ = 150 °C - 0.96 1.13

F

VR = VR rated - - 0.1

T

= 150 °C, VR = VR rated - - 1

J

VR = 400 V - 67 - pF

T

IF = 1.0 A, dIF/dt = 200 A/µs, VR = 30 V - 30 35

= 25 °C

J

T

= 125 °C - 128 -

J

TJ = 25 °C - 7.4 -

T

= 125 °C - 17.8 -

J

TJ = 25 °C - 240 -

rr

T

= 125 °C - 1139 -

J

I

= 50 A

F

/dt = 200 A/µs

dI

F

= 200 V

V

R

-65-

V

mA

nsT

A

nC

THERMAL - MECHANICAL SPECIFICATIONS

PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS

Junction to case, single diode conducting

Case to heatsink R

R

thJC

thCS

Flat, greased surface - 0.05 -

Weight -30- g

Mounting torque -1.3-Nm

- 0.99 1.24

°C/WJunction to case, both diodes conducting - 0.49 0.62

www.vishay.com For technical questions, contact: [e-mail]

Document Number: 94086

2 Revision: 25-Apr-08

UFB120FA40P

Rectifier Module, 120 A

1000

100

TJ = 150 °C

= 125 °C

T

10

1

- Instantaneous Forward Current (A)

F

I

0

0.5 1.0 1.5

VF - Forward Voltage Drop (V)

Fig. 1 - Typical Forward Voltage Drop Characteristics

(Per Diode)

J

= 25 °C

T

J

1000

Insulated Ultrafast

2.0

Vishay High Power Products

100

10

1

0.1

- Reverse Current (µA)

0.01

R

I

0.001

0 200 300

Fig. 2 - Typical Values of Reverse Current vs.

TJ = 150 °C

TJ = 125 °C

TJ = 25 °C

400100

VR - Reverse Voltage (V)

Reverse Voltage

100

- Junction Capacitance (pF)

T

C

10

1 10 100 1000

TJ = 25 °C

VR - Reverse Voltage (V)

Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage

10

1

0.1

- Thermal Impedance (°C/W)

thJC

Z

0.01

0.0001 0.001 0.01 0.1 1

Single pulse

(thermal resistance)

t1 - Rectangular Pulse Duration (s)

Fig. 4 - Maximum Thermal Impedance Z

(Per Diode)

thJC

P

DM

Notes:

1. Duty factor D = t

2. Peak TJ = PDM x Z

1/t2

t

1

thJC

t

2

.

+ T

C

.

10

Document Number: 94086 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 25-Apr-08 3

UFB120FA40P

Vishay High Power Products

160

140

120

100

Square wave (D = 0.50)

80

80 % rated V

60

40

Allowable Case Temperature (°C)

See note (1)

20

010

I

F(AV)

applied

R

20 30

- Average Forward Current (A)

Fig. 5 - Maximum Allowable Case Temperature vs.

Avarage Forward Current (Per Diode)

70

60

50

40

30

20

Average Power Loss (W)

10

0

DC

10 40

020

I

- Average Forward Current (A)

F(AV)

30

Fig. 6 - Forward Power Loss (Per Diode)

DC

40 60

50

50

Insulated Ultrafast

Rectifier Module, 120 A

70

RMS limit

D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50

70

60

160

150

140

130

120

110

(ns)

100

rr

t

90

80

70

60

50

100 1000

VRR = 200 V

= 50 A

I

F

dIF/dt (A/µs)

Fig. 7 - Typical Reverse Recovery Time vs. dIF/dt

3050

2550

TJ = 125 °C

= 25 °C

T

J

100 1000

(nC)

rr

Q

2050

1550

1050

550

50

VRR = 200 V

= 50 A

I

F

dIF/dt (A/µs)

Fig. 8 - Typical Stored Charge vs. dI

TJ = 125 °C

= 25 °C

T

J

/dt

F

Note

(1)

Formula used: TC = TJ - (Pd + Pd
Pd = Forward power loss = I
Pd

= Inverse power loss = VR1 x IR (1 - D); IR at VR1 = 80 % rated V

REV

F(AV)

) x R

REV

x VFM at (I

;

thJC

/D) (see fig. 6);

F(AV)

R

www.vishay.com For technical questions, contact: [e-mail]

Document Number: 94086

4 Revision: 25-Apr-08

UFB120FA40P

Insulated Ultrafast

Vishay High Power Products

Rectifier Module, 120 A

V

= 200 V

R

0.01 Ω

L = 70 µH

D.U.T.

dIF/dt
adjust

G

Fig. 9 - Reverse Recovery Parameter Test Circuit

I

F

0

t

D

IRFP250

S

(3)

t

rr

t

a

b

dIF/dt

(1)

/dt - rate of change of current

(1) dI

F

through zero crossing

- peak reverse recovery current

(2) I

RRM

- reverse recovery time measured

(3) t

rr

from zero crossing point of negative
going I
through 0.75 I
extrapolated to zero current.

to point where a line passing

F

and 0.50 I

RRM

RRM

Fig. 10 - Reverse Recovery Waveform and Definitions

(2)

I

RRM

(4) Q
and I

(5) dI
current during t

(4)

Q

rr

0.5 I

RRM

(rec)M

Q

=

rr

(5)

/dt

trr x I

RRM

2

portion of t

b

rr

dI

0.75 I

RRM

- area under curve defined by t

rr

RRM

/dt - peak rate of change of

(rec)M

rr

Document Number: 94086 For technical questions, contact: [e-mail]

www.vishay.com

Revision: 25-Apr-08 5

UFB120FA40P

Vishay High Power Products

ORDERING INFORMATION TABLE

Device code

UF B 120 F A 40 P

1 - Ultrafast rectifier

2 - Ultrafast Pt diffused

3 - Current rating (120 = 120 A)

4 - Circuit configuration (2 separate diodes, parallel pin-out)

5 - Package indicator (SOT-227 standard isolated base)

6 - Voltage rating (40 = 400 V)

7 - None = Standard production

Quantity per tube is 10, M4 screw and washer included

Insulated Ultrafast

Rectifier Module, 120 A

51324

P = Lead (Pb)-free

67

LINKS TO RELATED DOCUMENTS

Dimensions http://www.vishay.com/doc?95036

Packaging information http://www.vishay.com/doc?95037

www.vishay.com For technical questions, contact: [e-mail]
6 Revision: 25-Apr-08

Document Number: 94086

Legal Disclaimer Notice

Vishay

Disclaimer

All product specifications and data are subject to change without notice.

Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.

Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.

The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.

Product names and markings noted herein may be trademarks of their respective owners.

Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1