KTC4370Y 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): 120 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 KTC4370Y transistor can have a current gain of 120 to 240. The gain of the KTC4370 will be in the range from 70 to 240, for the KTC4370O it will be in the range from 70 to 140.The complementary PNP transistor to the KTC4370Y is the KTA1659Y.You can replace the KTC4370Y with the 2SC2238, 2SC2238A, 2SC2238AY, 2SC2238B, 2SC2238BY, 2SC2238Y, 2SC2336, 2SC2336A, 2SC2336B, 2SC3298, 2SC3298-Y, 2SC3298A, 2SC3298A-Y, 2SC3298B, 2SC3298B-Y, 2SC4382, 2SC4883A, 2SC5171, 2SD1264A, 2SD1264A-P, 2SD772A, 2SD772B, 2SD792A, 2SD792B, KTC2238, KTC2238A, KTC2238AY, KTC2238Y, KTC4370A, KTC4370AY, KTD2061, KTD2061Y, MJE15032, MJE15032G, TIP41F or TIP42F.