2SD1478A
2 SJC00414AED

This product complies with the RoHS Directive (EU 2002/95/EC).

040 80 120 160
0
80
160
240
2SD1478A_ PC-Ta

Collector power dissipation PC (mW)

Ambient temperature Ta (°C)

10−11 10 102
10−1
1
10
102
103
2SD1478A_ IC-VCE

Collector current IC (mA)

Collector-emitter voltage VCE (V)

Ta = 25°C
IB = 50 µA
45 µA
40 µA
35 µA
30 µA
25 µA
20 µA
15 µA
10 µA
5 µA
10−210−11 10
10−1
10
1
2SD1478A_ VCE(sat)-IC

Collector-emitter saturation voltage VCE(sat) (V)

Collector current IC (A)
IC / IB = 1
000
Ta = 75°C
25°C
−25°C
10−210−11 10
10−1
10
1
2SD1478A_ VBE(sat)-IC

Base-emitter saturation voltage VBE(sat) (V)

Collector current IC (A)
IC / IB = 1
000
Ta = −25°C
25°C
75°C
10−210−11
102
103
104
105
2SD1478A_ hFE-IC
Forward current transfer ratio hFE
Collector current IC (A)
VCE = 10 V
Ta = 75°C
25°C
−25°C
110 102
0
2
4
6
2SD1478A_ Cob-VCB

Collector output capacitance

(Common base, input open circuited) Cob (pF)

Collector-base voltage VCB (V)

IE = 0
f = 1 MHz
Ta = 25°C
PC Ta IC VCE VCE(sat) IC
VBE(sat) IC hFE IC Cob VCB