BDW53 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 45 V
• Collector-Base Voltage, max: 45 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 BDW53 is the BDW54.The FMMT619 (SOT-23) and FZT690B (SOT-223) is the SMD version of the BDW53 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BDW53 with the 2SC1985, 2SC1986, 2SC2075, 2SC2315, 2SC2316, 2SC3179, 2SD1158, 2SD1274, 2SD1274A, 2SD1274B, 2SD823, BD201, BD203, BD243, BD243A, BD243B, BD301, BD303, BD533, BD535, BD537, BD539A, BD539B, BD543A, BD543B, BD545A, BD545B, BD643, BD645, BD647, BD737, BD795, BD797, BD799, BD807, BD809, BD895, BD895A, BD897, BD897A, BD899, BD899A, BD949, BD951, BDT61, BDT61A, BDT81, BDT81F, BDT83, BDT83F, BDW23, BDW23A, BDW23B, BDW53A, BDW53B, BDW63, BDW63A, BDW63B, BDW73, BDW73A, BDW73B, BDX33, BDX33A, BDX33B, BDX33BG, BDX53, BDX53A, BDX53B, BDX53BG, BDX77, D44H11, D44H11FP, D44H8, MJE800T, MJE801T, MJE802T or MJE803T.