BDW23 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: 6 A
• Collector Dissipation: 50 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 BDW23 is the BDW24.The 2STF1550 (SOT-89), 2STN1550 (SOT-223) and FZT690B (SOT-223) is the SMD version of the BDW23 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BDW23 with the 2SC1985, 2SC1986, 2SC2315, 2SC2316, 2SD1158, 2SD823, BD201, BD203, BD243, BD243A, BD243B, BD301, BD303, BD533, BD535, BD537, BD543A, BD543B, BD545A, BD545B, BD643, BD645, BD647, BD795, BD797, BD799, BD807, BD809, BD895, BD895A, BD897, BD897A, BD899, BD899A, BDT81, BDT81F, BDT83, BDT83F, BDW23A, BDW23B, BDW63, BDW63A, BDW63B, BDW73, BDW73A, BDW73B, BDX33, BDX33A, BDX33B, BDX33BG, BDX53, BDX53A, BDX53B, BDX53BG, BDX77, D44H11, D44H11FP or D44H8.