B1438 View Datasheet(PDF) - Panasonic Corporation
Part Name
Description
View to exact match
B1438 Datasheet PDF : 2 Pages
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Transistor
PC — Ta
1.2
Printed circut board: Copper
foil area of 1cm2 or more, and
1.0
the board thickness of 1.7mm
for the collector portion.
0.8
0.6
0.4
0.2
0
0 20 40 60 80 100 120 140 160
Ambient temperature Ta (˚C)
–100
–30
–10
VBE(sat) — IC
IC/IB=20
–3
–1
– 0.3
– 0.1
25˚C Ta=–25˚C
100˚C
– 0.03
– 0.01
– 0.01 – 0.03 – 0.1 – 0.3 –1 –3 –10
Collector current IC (A)
Cob — VCB
240
IE=0
f=1MHz
Ta=25˚C
200
160
120
80
40
0
–1
–3
–10
–30
–100
Collector to base voltage VCB (V)
IC — VCE
–2.0
Ta=25˚C
–1.8
–1.6
–1.4
–1.2
IB=–8mA
–1.0
– 0.8
– 0.6
– 0.4
– 0.2
–7mA
–6mA
–5mA
–4mA
–3mA
–2mA
–1mA
0
0
–2 –4 –6 –8 –10
Collector to emitter voltage VCE (V)
2SB1438
VCE(sat) — IC
–10
IC/IB=20
–3
–1
– 0.3
– 0.1
Ta=100˚C
25˚C
– 0.03
– 0.01
–25˚C
– 0.003
– 0.001
– 0.01 – 0.03 – 0.1 – 0.3 –1 –3 –10
Collector current IC (A)
hFE — IC
500
VCE=–2V
450
400
350
300
Ta=100˚C
250
200
25˚C
150
–25˚C
100
50
0
– 0.01 – 0.03 – 0.1 – 0.3 –1 –3 –10
Collector current IC (A)
fT — IE
200
VCB=–10V
180
Ta=25˚C
160
140
120
100
80
60
40
20
0
1
3
10
30
100
Emitter current IE (mA)
2
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