KTD1351GR Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 150 to 300
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The KTD1351GR transistor can have a current gain of 150 to 300. The gain of the KTD1351 will be in the range from 60 to 300, for the KTD1351O it will be in the range from 60 to 120, for the KTD1351Y it will be in the range from 100 to 200.The complementary PNP transistor to the KTD1351GR is the KTB988GR.The BDP949 (SOT-223) and FZT692B (SOT-223) is the SMD version of the KTD1351GR transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTD1351GR with the 2SC1826, 2SC1985, 2SC1986, 2SC2075, 2SC3179, 2SC3851, 2SC3851A, 2SC4007, 2SC4008, 2SC4550, 2SC4550-L, 2SC4551, 2SC4551-L, 2SC4552, 2SC4552-L, 2SD1134, 2SD1266, 2SD1266A, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1354-GR, 2SD1406, 2SD1406-G, 2SD1761, 2SD2012, 2SD2061, 2SD2394, 2SD313, 2SD613, 2SD823, 2SD880, 2SD880GR, BD203, BD241A, BD241B, BD241C, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD539D, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD797, BD799, BD801, BD807, BD809, BD949, BD951, BD953, BD955, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDX77, D44H11, D44H11FP, D44H8, KSD1406, KSD1406-G, KSD2012, KSD2012-G, KSD2058, KSD2058-G, KSD880, KSD880-G, KTC2016, KTC2016-GR, KTC2026, KTC2026-GR, KTC2026GR, MJE15028, MJE15028G, TIP41D or TIP42D.