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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.
2SD1478A Datasheet
