BD137G Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1.5 A
• Collector Dissipation: 12.5 W
• DC Current Gain (h_fe): 40 to 250
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126
• The BD137G is the lead-free version of the BD137 transistor

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BD137G is the BD138G.The BCP55 (SOT-223) is the SMD version of the BD137G transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD137G with the BD137, BD139, BD139G, BD167, BD169, BD177, BD179, BD189, BD228, BD230, BD235, BD235G, BD237, BD237G, BD377, BD379, BD787, BD787G, BD789, BD791, MJE225, MJE242, MJE244, MJE721 or MJE722.