TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland.
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0093 Rev. 2 (101243) Page 2 of 4
ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted) (CONT.)
Parameters / Test Conditions Symbol Min. Max. Unit
ON CHARACTERTICS (2)
Forward-Current Transfer Ratio
hFE
IC = 0.1mAdc, VCE = 1.0Vdc 2N3250A, AUB
2N3251A, AUB
40
80
IC = 1.0mAdc, VCE = 1.0Vdc 2N3250A, AUB
2N3251A, AUB
45
90
IC = 10mAdc, VCE = 1.0Vdc 2N3250A, AUB
2N3251A, AUB
50
100
150
300
IC = 50mAdc, VCE = 1.0Vdc 2N3250A, AUB
2N3251A, AUB
15
30
IC = 1.0mAdc, VCE = 1.0Vdc
TA = -55°C
2N3250A, AUB
2N3251A, AUB
20
40
Collector-Emitter Saturation Voltage
VCE(sat)
Vdc
IC = 10mAdc, IB = 1.0mAdc
IC = 50mAdc, IB = 5.0mAdc 0.25
0.50
Base-Emitter Saturation Voltage
VBE(sat)
Vdc
IC = 10mA, IB = 1.0mAdc
IC = 50mA, IB = 5.0mAdc
0.60 0.90
1.20
DYNAMIC CHARACTERISTICS
Parameters / Test Conditions Symbol Min. Max. Unit
Small-Signal Short-Circuit Forward Current Transfer Ratio
hfe
IC = 1.0mAdc, VCE = 10Vdc, f = 1.0kHz 2N3250A, AUB
2N3251A, AUB
50
100
200
400
Magnitude of Common Emitter Small-Signal Short-Circuit Forward
Current Transfer Ratio |hfe|
IC = 10mAdc, VCE = 20Vdc, f = 100kHz 2N3250A, AUB
2N3251A, AUB
2.5
3.0
9.0
9.0
Output Capacitance
Cobo
pF
VCB = 10Vdc, IE = 0, 100 kHz ≤ f ≤ 1.0MHz 6.0
Input Capacitance
Cibo
pF
VEB = 1.0Vdc, IC = 0, 100 kHz ≤ f ≤ 1.0MHz 8.0
SWITCHING CHARACTERISTICS
Parameters / Test Conditions Symbol Min. Max. Unit
Turn-On Time
ton
VCC = 3.0Vdc; IC = 10mAdc; IB1 = 1.0mAdc 70 ηs
Turn-Off Time
toff
ηs
VCC = 3.0Vdc; IC = 10mAdc; IB1 = IB2 =
1.0mAdc
2N3250A, AUB
2N3251A, AUB
250
300
(2) Pulse Test: Pulse Width = 300μs, Duty Cycle ≤ 2.0%