KTC4370 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 160 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 1.5 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The KTC4370 transistor can have a current gain of 70 to 240. The gain of the KTC4370O will be in the range from 70 to 140, for the KTC4370Y it will be in the range from 120 to 240.The complementary PNP transistor to the KTC4370 is the KTA1659.You can replace the KTC4370 with the 2SC2238, 2SC2238A, 2SC2238B, 2SC2336, 2SC2336A, 2SC2336B, 2SC3298, 2SC3298A, 2SC3298B, 2SC4382, 2SC4883A, 2SD1264A, 2SD772A, 2SD772B, 2SD792A, 2SD792B, KTC2238, KTC2238A, KTC4370A, KTD2061, MJE15032, MJE15032G, TIP41F or TIP42F.