2SD1667-R Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 30 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SD1667-R transistor can have a current gain of 100 to 200. The gain of the 2SD1667 will be in the range from 70 to 280, for the 2SD1667-Q it will be in the range from 70 to 140, for the 2SD1667-S it will be in the range from 140 to 280.Sometimes the "2S" prefix is not marked on the package - the 2SD1667-R might only be marked "D1667-R".The complementary PNP transistor to the 2SD1667-R is the 2SB1134-R.The 2SD1624 (SOT-89), 2SD1624-R (SOT-89) and BDP949 (SOT-223) is the SMD version of the 2SD1667-R transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD1667-R with the 2SC1985, 2SC1986, 2SC2334, 2SC2562, 2SC3239, 2SC3253, 2SC3253-R, 2SC3254, 2SC3254-R, 2SC3255, 2SC3255-R, 2SC3258, 2SC3299, 2SC3308, 2SC3345, 2SC3346, 2SC3540, 2SC3709, 2SC3709A, 2SC3710, 2SC3710A, 2SC3746, 2SC3746-R, 2SC3747, 2SC3747-R, 2SC3748, 2SC3748-R, 2SC4550, 2SC4550-M, 2SC4551, 2SC4551-M, 2SC4552, 2SC4552-M, 2SC4881, 2SD1060, 2SD1060-R, 2SD1061, 2SD1061-R, 2SD1062, 2SD1062-R, 2SD1270, 2SD1271, 2SD1274, 2SD1274A, 2SD1274B, 2SD1355, 2SD1362, 2SD1363, 2SD1407, 2SD1407A, 2SD1411, 2SD1411A, 2SD1412, 2SD1588, 2SD1588-K, 2SD1668, 2SD1668-R, 2SD1669, 2SD1669-R, 2SD2059, 2SD525, 2SD553, 2SD568, 2SD568-K, 2SD569, 2SD569-K, 2SD613, 2SD613-E, 2SD812, 2SD812-P, 2SD823, 2SD866, 2SD866A, BD203, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD797, BD799, BD801, BD807, BD809, BD949, BD951, BD953, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT91, BDT91F, BDT93, BDT93F, BDT95, BDT95F, BDX77, D44H11, D44H11FP, D44H8, KSC2334, KSD1588, KSD1588-Y, KSD568, KSD568-Y, KSD569, KSD569-Y, KTC2018, KTC2028 or KTD2059.