BDW53B Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 80 V
• Collector-Base Voltage, max: 80 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 4 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 750 to 20000
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BDW53B is the BDW54B.You can replace the BDW53B with the 2SC1986, 2SC2075, 2SC2316, 2SD1274, 2SD1274A, 2SD1274B, 2SD772, 2SD792, 2SD823, BD243B, BD243C, BD537, BD539B, BD539C, BD539D, BD543B, BD543C, BD545B, BD545C, BD647, BD649, BD651, BD799, BD801, BD809, BD899, BD899A, BD901, BD951, BD953, BD955, BDT61A, BDT61B, BDT61C, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDW23B, BDW23C, BDW53C, BDW53D, BDW63B, BDW63C, BDW63D, BDW73B, BDW73C, BDW73D, BDX33B, BDX33BG, BDX33C, BDX33CG, BDX33D, BDX53B, BDX53BG, BDX53C, BDX53CG, BDX53D, BDX53E, BDX53F, BDX77, D44H11, D44H11FP, MJE15028, MJE15028G, MJE15030, MJE15030G, MJE802T, MJE803T, MJF15030, MJF15030G, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.