Fairchild MBR1535CT, MBR1545CT, MBR1550CT, MBR1560CT service manual

MBR1535CT - MBR1560CT

Features

• Low power loss, high efficiency.

• High surge capacity.

• For use in low voltage, high frequency

inverters, free wheeling, and polarity
protection applications.

• Metal silicon junction, majority carrier

conduction.

• High current capacity, low forward

voltage drop.

• Guarding for over voltage protection.

Schottky Rectifiers

MBR1535CT- MBR1560CT

PIN 1

PIN 3

1

2

3

TO-220AB

+

CASE
PIN 2

Absolute Maximum Ratings* T

Symbol

V

Maximum Repetitive Reverse Voltage 35 45 50 60 V

RRM

I

Average Rectified Forward Current

F(AV)

I

Non-repetitive Peak Forward Surge Current

FSM

T

stg

TJ Operating Junction Temperature -65 to +150

.375 " lead length @ T

8.3 ms Single Half-Sine-Wave

Storage Temperature Range -65 to +175

Parameter

A

= 25°C unless otherwise noted

A

= 105°C

Value

1535 1545 1550 1560

15 A

150 A

Units

C

°

C

°

*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.

Thermal Characteristics

Symbol

PD Power Dissipation 41.7 W
R

JA

θ

R

JL

θ

Thermal Resistance, Junction to Ambient 60
Thermal Resistance, Junction to Lead 3.0

Electrical Characteristics T

Symbol

VF

IR

I

RRM

Forward Voltage I

I
I
I

F =
F =
F =
F =

Reverse Current @ rated V
T

Peak Repetitive Reverse Surge Current

2.0 us Pulse Width, f = 1.0 KHz

Parameter

= 25°C unless otherwise noted

A

Parameter

7.5 A, TC = 25°C

7.5 A, TC = 125°C
15 A, TC = 25°C
15 A, TC = 125°C

= 25°C

R TA

= 125°C

A

Value

Device

1535 1545 1550 1560

-

0.57

0.84

0.72

0.1
15

0.75

0.65

-

-

1.0
50

Units

C/W

°

C/W

°

Units

V
V
V
V

mA
mA

1.0 0.5 A

2001 Fairchild Semiconductor Corporation

MBR1535CT - MBR1560CT, Rev. C

Typical Characteristics

MBR1535CT- MBR1560CT

Schottky Rectifier

(continued)

[A]

F

25

20

200

[A]

FSM

150

15

SINGLE PHASE
HALF WAVE

10

60HZ
RESISTIVE OR
INDUCTIVE LOAD

5

.375" (9.00mm) LOAD
LENGTHS

0

0 25 50 75 100 125 150 175

Average Rectified Forward Current, I

Ambient Temperature [ºC]

Figure 1. Forward Current Derating Curve

50

º

T = 125 C

10

[A]

F

1

0.1

Forward Current, I

0.01

A

T = 25 C

º

A

MBR1535CT-MBR1545CT

MBR1550CT-MBR1560CT

Pulse Width = 300
2% Duty Cycle

µµµµ

S

0 0.2 0.4 0.6 0.8 1 1.2

Forward Voltage, VF [V]

100

50

0

Peak Forward Surge Current, I

12 51020 50100

Number of Cycles at 60Hz

Figure 2. Non-Repetitive Surge Current

50

10

MBR1535CT-MBR1545CT

1

[mA]

R

MBR1550CT-MBR1560CT

0.1

MBR1535CT-MBR1545CT

0.01

Reverse Current, I

0.001
0 20406080100120140

Percent of Rated Peak Reverse Voltage [%]

º

T = 125 C

A

º

T = 75 C

A

º

T = 25 C

A

MBR1550CT-MBR1560CT

Figure 3. Forward Voltage Characteristics Figure 4. Reverse Current vs Reverse Voltage

5000

[pF]

1000

T

100

MBR1550CT-MBR1560CT

Total Capacitance, C

10

0.1 1 10 100

Reverse Voltage, VR [V]

Figure 5. Total Capacitance Figure 6. Thermal Impedance Characteristics

2001 Fairchild Semiconductor Corporation

MBR1535CT-MBR1545CT

100

10

1

Transient Thermal Impedance [ºC/W]

0.1

0.01 0.1 1 10 100

Pulse Duration [s]

MBR1535CT - MBR1560CT, Rev. C