This post explains for the transistor.
The Part Number is D2144, 2SD2144, 2SD2144K.
The function of this semiconductor is 20V, 0.5A, NPN Transistor.
Manufacturers : Rohm
Preview images :
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Description :
This is High-current Gain Medium Power Transistor (20V, 0.5A).
Features :
1. High DC current gain. hFE = 1200 (Typ.)
2. High emitter-base voltage. VEBO = 12V (Min.)
3. Low VCE(sat). VCE(sat) = 0.18V (Typ.) (IC / IB = 500mA / 20mA)
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = 25 V
2. Collector to Emitter Voltage : Vceo = 20 V
3. Emitter to Base Voltage : Vebo = 12 V
4. Collector Current : Ic = 0.5 A
5. Collector Dissipation : Pc = 0.2 W
6. Junction Temperature : Tj = 150°C
7. Storage Temperature : Tsg = -55 ~ +150°C
Structure :
1. Epitaxial planar type NPN silicon transistor […]
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