KTC4370A Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 180 V
• Collector-Base Voltage, max: 180 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 KTC4370A transistor can have a current gain of 70 to 240. The gain of the KTC4370AO will be in the range from 70 to 140, for the KTC4370AY it will be in the range from 120 to 240.The complementary PNP transistor to the KTC4370A is the KTA1659A.You can replace the KTC4370A with the 2SC2238A, 2SC2238B, 2SC2336, 2SC2336A, 2SC2336B, 2SC3298A, 2SC3298B, 2SC4382, 2SC4883A, 2SD1264A, 2SD772A, 2SD772B, 2SD792A, 2SD792B, KTC2238A, KTD2061, MJE15032 or MJE15032G.