Transistor
2SD1478, 2SD1478A
Silicon
NPN epitaxial planer type darlington
Unit: mm
For low-frequency amplification
0.
65±0.
15
2.
8 –0.
3
+0.
2
1.
5 –0.
05
+0.
25
0.
65±0.
15
2.
9 –0.
05
1.
9±0.
2
+0.
2
q
q
Forward current transfer ratio hFE is designed high, which is appropriate to the driver circuit of motors and printer bammer: hFE = 4000 to 20000.
A shunt resistor is omitted from the driver.
(Ta=25˚C)
Ratings 30 60 25 50 5 750 500 200 150 –55 ~ +150 Unit V
0.
95
1
0.
95
3 0.
4 –0.
05
+0.
1
2
1.
45
s Features
1.
1 –0.
1
Collector to base voltage Collector to
2SD1478 2SD1478A 2SD1478 VCBO VCEO VEBO ICP IC PC Tj Tstg
emitter voltage 2SD1478A Emitter to base voltage Peak collector current C...