2N3902 datasheet(2/2 Pages) MICROSEMI

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2N3902, 2N5157 JAN SERIES

ELECTRICAL CHARACTERISTICS (con’t)

Characteristics

Symbol

Min.

Max.

Unit

ON CHARACTERISTICS

(3) (con’t)

Forward-Current Transfer Ratio

IC = 0.5 Adc; VCE = 5.0 Vdc

IC = 1.0 Adc; VCE = 5.0 Vdc

IC = 2.5 Adc; VCE = 5.0 Vdc

IC = 3.5 Adc; VCE = 5.0 Vdc

hFE

Collector-Emitter Sustaining Voltage

IC = 100 mAdc

2N3902

2N5157

VCEO(sus)

325

400

Vdc

DYNAMIC CHARACTERISTICS

Small-Signal Short-Circuit Forward Current Transfer Ratio

IC = 0.2 Adc; VCE = 10 Vdc, f = 1 MHz

h

fe

2.5

Output Capacitance

VCB = 10 Vdc; IE = 0, 100 kHz ≤ f ≤ 1.0 MHz

Cobo

250

SWITCHING CHARACTERISTICS

Turn-On Time

VCC = 125 Vdc; IC = 1.0 Adc; IB1= 0.1 Adc

ton

0.8

µs

Turn-Off Time

VCC = 125 Vdc; IC = 1.0 Adc; IB1 = 0.1 Adc; -IB2 = 0.50 Adc

toff

1.7

µs

SAFE OPERATING AREA

DC Tests (continuous)

TC = +25

0C; t

≥ 1.0 s (See Figure 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

0C; duty cycle

≤ 10%; R

S = 0.1 Ω

(See Figure 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; IC = 3.5 Adc; L = 60 mH; R = 3 Ω; RL ≤ 14Ω.

Test 2

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

VBB2 = 1.5 Vdc; IC = 0.6 Adc VCC = 50 Vdc; L = 200 mH; R = 8 Ω; RL ≤ 83Ω.

Switching Tests

Load condition (clamped inductive load)

TC = +25

0C; duty cycle

≤ 10%.

(See Figure 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; IC = 3.5 Adc; L = 60 mH; R = 3 Ω; RL ≥ 0Ω.

(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)

3.) Pulse Test: Pulse Width = 300

µs, Duty Cycle ≤ 2.0%.

6 Lake Street, Lawrence, MA 01841

1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803

120101

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