2N3902 datasheet(2/4 Pages) MA-COM

2 / 4 page

NPN High Power Silicon Transistors

Rev. V1

2N3902 & 2N5157

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Electrical Characteristics

Parameter

Test Conditions

Symbol Units

Min.

Max.

Switching Characteristics

Turn-On Time

VCC = 125 Vdc; IC = 1.0 Adc;

IB1 = 0.1 Adc

TON

µs

—

0.8

Turn-Off Time

VCC = 125 Vdc; IC = 1.0 Adc;

IB1 = 0.1 Adc, -IB2 = 0.50 Adc

TOFF

µs

—

1.7

Safe Operating Area

DC Tests:

TC = +25°C, I Cycle, t = 1.0 s (see Fig. 3 of MIL-PRF-19500/371)

Test 1:

VCE = 28.6 Vdc, IC = 3.5 Adc

Test 2:

VCE = 70 Vdc, IC = 1.43 Adc

Test 3:

VCE = 325 Vdc, IC = 55 mAdc, 2N3902

VCE = 400 Vdc, IC = 35 mAdc, 2N5157

Switching Tests:

Load Condition C (unclamped inductive load): TC = +25°C, duty cycle <10%; RS = 0.1 Ω (See Fig. 4 of MIL-PRF-19500/371)

Test 1:

tP = approximately 3 ms (vary to obtain IC), RBB1 = 20 Ω, VBB1 = 10 Vdc; RBB2 = 3 kΩ,

VBB2 = 1.5 Vdc, VCC = 50 Vdc, lC = 3.5 Adc, L = 60 mH, R = 3 Ω; RL <14 Ω

Test 2:

tP = approximately 3 ms (vary to obtain IC), RBB1 = 100 Ω, VBB1 = 10 Vdc; RBB2 = 3 kΩ,

VBB2 = 1.5 Vdc, lC = 0.6 Adc, VCC = 50 Vdc, L = 200 mH, R = 8 Ω; RL <83 Ω

Load Condition (clamped inductive load): TC = +25°C, duty cycle <10% (See Fig. 5 of MIL-PRF-19500/371)

Test 1:

tP = approximately 30 ms (vary to obtain IC), RS = 0.1 Ω, RBB1 = 20 Ω, VBB1 = 10 Vdc;

RBB2 = 100 Ω, VBB2 = 1.5 Vdc, VCC = 50 Vdc, lC = 3.5 Adc, L = 60 mH, R = 3 Ω; RL <0 Ω

(A suitable clamping circuit or diode can be used.)

Clamp Voltage = 400 +0, -5 Vdc

2N3902

Clamp Voltage = 500 +0, -5 Vdc

2N5157

(Clamped voltage must be reached)

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