KSD1273P Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 80 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 800 to 1500
• Transition Frequency, min: 30 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F
• Electrically Similar to the Popular 2SD1273P transistor

Here is an image showing the pin diagram of this transistor.The KSD1273P transistor can have a current gain of 800 to 1500. The gain of the KSD1273 will be in the range from 500 to 2500, for the KSD1273O it will be in the range from 1200 to 2500, for the KSD1273Q it will be in the range from 500 to 1000.You can replace the KSD1273P with the 2N6531, 2N6533, 2SC1985, 2SC1986, 2SC2075, 2SC2315, 2SC2316, 2SC3179, 2SC3852, 2SC3852A, 2SD1273, 2SD1273A, 2SD1273AP, 2SD1273P, 2SD1274, 2SD1274A, 2SD1274B, 2SD2375, 2SD2375-P, 2SD2396, 2SD823, BD203, BD241A, BD241B, BD241C, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD539D, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD645, BD647, BD649, BD651, BD797, BD799, BD801, BD807, BD809, BD897, BD897A, BD899, BD899A, BD901, BD949, BD951, BD953, BD955, BDT61, BDT61A, BDT61B, BDT61C, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDW23A, BDW23B, BDW23C, BDW53A, BDW53B, BDW53C, BDW53D, BDW63A, BDW63B, BDW63C, BDW63D, BDW73A, BDW73B, BDW73C, BDW73D, BDW93A, BDW93B, BDW93C, BDW93CF, BDX33A, BDX33B, BDX33BG, BDX33C, BDX33CG, BDX33D, BDX53A, BDX53B, BDX53BG, BDX53C, BDX53CG, BDX53D, BDX77, D44H11, D44H11FP, D44H8, MJE15028, MJE15028G, MJE800T, MJE801T, MJE802T, MJE803T, TIP41D or TIP42D.