2SD712O Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 120 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 8 A
• Collector Dissipation: 80 W
• DC Current Gain (h_fe): 80 to 160
• Transition Frequency, min: 12 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P

Here is an image showing the pin diagram of this transistor.The 2SD712O transistor can have a current gain of 80 to 160. The gain of the 2SD712 will be in the range from 55 to 160, for the 2SD712R it will be in the range from 55 to 110.Sometimes the "2S" prefix is not marked on the package - the 2SD712O might only be marked "D712O".The complementary PNP transistor to the 2SD712O is the 2SB688O.You can replace the 2SD712O with the 2SC2563, 2SC2563-O, 2SC2579, 2SC2580, 2SC2581, 2SC2706, 2SC2706-O, 2SC2837, 2SC3181, 2SC3181-O, 2SC3181N, 2SC3181N-O, 2SC3182, 2SC3182-O, 2SC3280, 2SC3280O, 2SC3281, 2SC3281O, 2SC3284, 2SC3519, 2SC3519A, 2SC3519A-O, 2SC3519A-P, 2SC3519A-Y, 2SC3854, 2SC3855, 2SC3856, 2SC3907, 2SC4278, 2SC4467, 2SC4468, 2SC4652, 2SC4689, 2SC4689-O, 2SC4690, 2SC4690-O, 2SC5197, 2SC5197O, 2SC5198, 2SC5198O, 2SC5199, 2SC5199O, 2SC5200, 2SC5200N, 2SC5200O, 2SC5358, 2SC5358-O, 2SC5774, 2SC5775, 2SC5948, 2SC5948-O, 2SC5949, 2SC5949-O, 2SC6011, 2SC6011A, 2SC6011A-O, 2SC6011A-P, 2SC6011A-Y, 2SD1046, 2SD1047, 2SD1148, 2SD1148-O, 2SD1289, 2SD1717, 2SD1717-S, 2SD1718, 2SD1718-S, 2SD2052, 2SD2052-S, 2SD2053, 2SD2155, 2SD2155-O, 2SD998, 2SD998-O, FJA4310, KTC5200, KTC5200A, KTC5200AO, KTC5200O, KTC5242, KTC5242A, KTC5242AO, KTC5242O, KTD1047, KTD1047B, KTD718, KTD718-O, KTD718B, KTD718B-O, KTD998, KTD998-O, MJW3281A, MJW3281AG, NTE2328, TTC0001, TTC0002 or TTC5200.