2N3902 View Datasheet(PDF) - M/A-COM Technology Solutions, Inc.
Part Name
Description
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2N3902 Datasheet PDF : 4 Pages
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2N3902 & 2N5157
NPN High Power Silicon Transistors
Rev. V1
Electrical Characteristics
Parameter
Switching Characteristics
Turn-On Time
Turn-Off Time
Safe Operating Area
Test Conditions
Symbol Units Min.
Max.
VCC = 125 Vdc; IC = 1.0 Adc;
IB1 = 0.1 Adc
TON
µs
—
0.8
VCC = 125 Vdc; IC = 1.0 Adc;
IB1 = 0.1 Adc, -IB2 = 0.50 Adc
TOFF
µs
—
1.7
DC Tests:
Test 1:
Test 2:
Test 3:
TC = +25°C, I Cycle, t = 1.0 s (see Fig. 3 of MIL-PRF-19500/371)
VCE = 28.6 Vdc, IC = 3.5 Adc
VCE = 70 Vdc, IC = 1.43 Adc
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)
2
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