12CTQ035PBF datasheet(4/7 Pages) VISHAY

4 / 7 page

VS-12CTQ...PbF Series, VS-12CTQ...-N3 Series

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Vishay Semiconductors

Revision: 22-Aug-11

Document Number: 94130

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Fig. 5 - Maximum Allowable Case Temperature vs. Average

Forward Current (Per Leg)

Fig. 6 - Forward Power Loss Characteristics (Per Leg)

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

Fig. 8 - Unclamped Inductive Test Circuit

Note

(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;

Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);

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

IF(AV) - Average Forward Current (A)

150

155

160

165

170

175

See note (1)

Square wave (D = 0.50)

80 % rated V

R applied

IF(AV) - Average Forward Current (A)

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

RMS limit

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

tp - Square Wave Pulse Duration (µs)

100

1000

100

1000

10 000

At any rated load condition

and with rated V

applied

following surge

RRM

Current

monitor

High-speed

switch

D.U.T.

g = 25 Ω

Freewheel

diode

d = 25 V

IRFP460

40HFL40S02

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