Vishay MBR3035WT, MBR3045WT Data Sheet

PD-2.324 rev. B 03/99

2

BASE
COMMON
CATHODE

123

CO MM ON

CATHODE

ANOD E

12

MBR3035WT
MBR3045WT

SCHOTTKY RECTIFIER 30 Amp

TO-247AC

Major Ratings and Characteristics

Characteristics MBR30..WT Units

I

Rectangular waveform 30 A

F(AV)

(Per Device)

I

@ TC = 125°C 30 A

FRM

(Per Leg)

V

RRM

I

@ tp = 5 µs sine 1020 A

FSM

VF@ 20 Apk, TJ = 125°C 0.60 V

T

range - 65 to 150 °C

J

20.30 (0.800)

19.70 (0.775)

14.80 (0.583)

14.20 (0.559)

1. 40 (0.056)

1. 00 (0.039)

10.94 (0.430)

10.86 (0.427)

35/45 V

15.90 (0.626)

15.30 (0.602)

123

4.30 (0.170)

3.70 (0.145)

3.65 (0.144)

3. 55 ( 0 .1 3 9 )

5.70 (0.225)

5.30 (0.208)

2.20 (0.087)
MAX.

Description/Features

The MBR30..WT center tap Schottky rectifier has been opti­mized for very low forward voltage drop, with moderate leakage.
The proprietary barrier technology allows for reliable operation
up to 150° C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.

150° C T
Center tap TO-247 package
High purity, high temperature epoxy encapsulation for

enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term

reliability

DIA.

5.50 (0.217)

4.50 (0.17 7)
(2 PLCS .)

operation

J

5.30 (0.209)

4.70 (0. 185)

0.80 (0.032)

0. 40 ( 0 .2 1 3 )

2.5 (0.098)

1.5 (0. 059)

2. 40 (0.095)
MAX.

Conform to JEDEC outline TO-247AC (TO-3P)

Dimensions in millimeters and (inches)

ANOD E

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MBR3035WT, MBR3045WT

PD-2.324 rev. B 03/99

Voltage Ratings

Part number MBR3035WT MBR3045WT

VRMax. DC Reverse Voltage (V)

Max. Working Peak Reverse Voltage (V)

V

RWM

35 45

Absolute Maximum Ratings

Parameters Values Units Conditions

I

Max. Average Forward (Per Leg) 15 A @ TC = 125° C, (Rated VR)

F(AV)

Current (Per Device) 30

I

Peak Repetitive Forward 30 A Rated VR , square wave, 20kHz

FRM

Current (Per Leg) TC = 125° C

I

Non Repetitive Peak 1020 5µs Sine or 3µs

FSM

Surge Current Rect. pulse

200

I

Peak Repetitive Reverse 2. 0 A 2.0 µsec 1.0 KHz

RRM

Surge Current

A

Surge applied at rated load conditions halfwave,
single phase, 60Hz

Following any rated load condition
and with rated V

RRM

applied

Electrical Specifications

Parameters Values Units Conditions

VFMMax. Forward Voltage Drop 0.76 V @ 30A TJ = 25 °C

(1) 0.60 V @ 20A

0.72 V @ 30A

IRMMax. Instantaneus Reverse Current 1.0 mA TJ = 25 °C

(1) 100 mA TJ = 125 °C

V

Threshold Voltage 0.29 V TJ = TJ max.

F(TO)

rtForward Slope Resistance 13.8 mΩ
CTMax. Junction Capacitance 800 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance 7. 5 n H Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change 1,00 0 V/ µs

(Rated VR)

= 125 °C

T

J

Rated DC voltage

(1) Pulse Width < 300µs, Duty Cycle <2%

Thermal-Mechanical Specifications

Parameters Values Units Conditions

TJMax. Junction Temperature Range -65 to 150 °C
T

Max. Storage Temperature Range -65 to 175 °C

stg

R

Max. Thermal Resistance 1.40 °C/W DC operation

thJC

Junction to Case (Per Leg)
Typical Thermal Resistance 0.24 °C/W Mounting surface, smooth and greased

R

thCS

Case to Heatsink
wt Approximate Weight 6 (0.21) g (oz.)
T Mounting Torque Min. 6 (5)

Max. 12 (10)

Kg-cm
(Ibf-in)

Case Style TO-247AC(TO-3P) JEDEC

2

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MBR3035WT, MBR3045WT

PD-2.324 rev. B 03/99

100

F

T = 150°C

J

T = 125°C

J

T = 25°C

J

10

1000

100

T = 150°C

J

125°C

100°C

75°C

50°C

25°C

0 5 10 15 20 25 30 35 40 45

Reverse Current - I (mA)

R

10

1

0.1

0.01

0.001

Reverse Voltage - V (V)

Fig. 2 - Typical Values Of Reverse Current

R

Vs. Reverse Voltage (Per Leg)

1000

Instantaneous Forward Current - I (A)

T

T = 25°C

J

1

0 0.2 0.4 0.6 0.8 1 1.2 1.4

Fig. 1 - Max. Forward Voltage Drop Characteristics

Thermal Impedance Z (°C/W)

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Junction Capacitance - C (pF)

100

0 1020304050

Forward Voltage Drop - V (V)

FM

Reverse Voltage - V (V)

Fig. 3 - Typical Junction Capacitance

(Per Leg)

10

D = 0.75

1

thJC

D = 0.50
D = 0.33
D = 0.25
D = 0.20

0.1
Single Pulse

(Thermal Resist ance )

0.01

0.00001 0.0001 0.001 0.01 0.1 1 10

t , Rectangular Pulse Duration (Seconds)

1

Fig. 4 - Max. Thermal Impedance Z

Notes:

1. Duty factor D = t / t

2. Peak T = P x Z + T

Characteristics (Per Leg)

thJC

Vs. Reverse Voltage (Per Leg)

P

DM

t

1

t

2

1

DM

J thJC C

R

2

3

MBR3035WT, MBR3045WT

0

PD-2.324 rev. B 03/99

150

140

130

Square w ave (D = 0.50)

120

V applied

R

110

Allowable Case Temperature - (°C)

se e note (2)

100

0 4 8 12162024

Average Forward Current - I (A)

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current (Per Leg)

FSM

1000

DC

F(AV)

At Any Rated Load Condition
And With Rated V Appl ied
Fol l o w i n g Su r ge

RRM

16

D = 0.20
D = 0.25

14

D = 0.33
D = 0.50

12

D = 0.75

10

RMS Limit

8

6
4

Average Power Loss - (Watts)

2
0

0 4 8 12 16 20 24

Average Forward Current - I (A)

Fig. 6 - Forward Power Loss Characteristics

(Per Leg)

DC

F(AV)

DUT

CURRENT
MONITOR

(2) Formula used: TC = TJ - (Pd + Pd

Pd = Forward Power Loss = I
Pd

= Inverse Power Loss = VR1 x IR (1 - D); IR @ V

REV

F(AV)

4

No n -Repetitive Surge Current - I (A)

100

10 100 1000 1000

Square Wa v e Pulse Dur ation - t (microsec)

p

Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)

L

HIGH-SPEED

IRFP46 0

Rg = 25 ohm

SWITCH

FREE-WHEEL

DIODE

40HFL40S02

Fig. 8 - Unclamped Inductive Test Circuit

) x R

REV

x VFM @ (I

;

thJC

/ D) (see Fig. 6);

F(AV)

= rated V

R1

R

Vd = 25 Volt

+

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Ordering Information Table

Device Code

MBR 30 45 WT

1

1 - Essential Part Number
2 - Current Rating
3 - Voltage code: Code = V
4 - Center Tap TO-247

24

3

RRM

MBR3035WT, MBR3045WT

PD-2.324 rev. B 03/99

35 = 35V
45 = 45V

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