This post describes for the transistor A1274.
The Part Number is A1274.
The function of this semiconductor is NPN Transistor KTA1274.
The manufacturer of this part is KEC.
See the preview image and the PDF file for more information.
General Purpose Application.
1. Complementary to KTC3227.
Maximum Ratings (Ta=25’C)
1. Collector-Base Voltage : Vcbo = -80 V
2. Collector-Emitter Voltage : Vceo = -80 V
3. Emitter Base Voltage : Vebo = -5 V
4. Collector Current : Ic = -400 mA
5. Emitter Current : Ie = 400 mA
6. Collector Power Dissipation : Pc = 1 W