Fairchild MBR4035PT, MBR4060PT service manual

MBR4035PT - MBR4060PT

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.

• Guard ring for over voltage protection.

Schottky Rectifiers

23

1

TO-3P/TO-247AD

PIN 1

PIN 3

+

CASE
PIN 2

MBR4035PT-MBR4060PT

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

= 125°C

A

= 25°C unless otherwise noted

A

4035PT 4045PT 4050PT 4060PT

Value

Units

40 A

400 A

°C
°C

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

Thermal Characteristics

Symbol

PD Power Dissipation 3.0 W
R

JL

θ

Thermal Resistance, Junction to Lead 1.2

Electrical Characteristics T

Symbol

VF

IR

I

RRM

Forward Voltage I

Reverse Current @ rated V
T

Peak Repetitive Reverse Surge Current

2.0 us Pulse Width, f = 1.0 KHz

Parameter

Parameter

20 A, TC = 25°C

F =

20 A, TC = 125°C

I

F =

I

40 A, TC = 25°C

F =

40 A, TC = 125°C

I

F =

R TA

= 25°C unless otherwise noted

A

= 25°C
= 125°C

A

Value

Device

4035PT 4045PT 4050PT 4060PT

0.70

0.60

0.80

0.75

1.0

100

0.72

0.62

-

-

Units

C/W

°

Units

V
V
V
V

mA
mA

2.0 1.0 A

2001 Fairchild Semiconductor Corporation

MBR4035PT - MBR4060PT, Rev. C

T ypical Characteristics

MBR4035PT-MBR4060PT

Schottky Rectifier

(continued)

60

[A]

F

50

40

SINGLE PHASE

30

HALF WAVE
60HZ

20

RESISTIVE OR
INDUCTIVE LOAD
.375" (9.00mm) LOAD

10

LENGTHS

0

0 25 50 75 100 125 150 175

Average Rectified Forward Current, I

Ambient Temperature [ºC]

400

[A]

FSM

300

200

100

Peak Forward Surge Current, I

12 51020 50100

Number of Cycles at 60Hz

Figure 1. Forward Current Derating Curve Figure 2. Non-Repetitive Surge Current

50

º

T = 25 C

A

MBR4035PT-MBR4045PT

[A]

10

F

º

T = 150 C

A

1

0.1

MBR4050PT-MBR4060PT

Forward Current, I

0.01
0 0.2 0.4 0.6 0.8 1 1.2

Pulse Width = 300
2% Duty Cycle

µµµµ

S

Forward Voltage, VF [V]

Figure 3. Forward Voltage Characteristics

50

MBR4035PT-MBR4045PT

10

[mA]

R

MBR4050PT-MBR4060PT

1

0.1

MBR4035PT-MBR4045PT

0.01

Reverse Current, I

0.001
0 20406080100120140

MBR4050PT-MBR4060PT

º

T = 125 C

A

º

T = 75 C

A

º

T = 25 C

A

Percent of Rated Peak Reverse Voltage [%]

Figure 4. Reverse Current vs Reverse Voltage

5000

2000

[pF]

T

1000

MBR4050PT-MBR4060PT

500

200

Total Capacitance, C

100

0.1 1 10 100

Reverse Voltage, VR [V]

Figure 5. Total Capacitance Figure 6. Thermal Impedance Characteristics

2001 Fairchild Semiconductor Corporation

MBR4035PT-MBR4045PT

100

10

1

Transient Thermal Impedance [ºC/W]

0.1

0.01 0.1 1 10 100

Pulse Duration [s]

MBR4035PT - MBR4060PT, Rev. C