KSC1730Y Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 15 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.05 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 1100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSC1730Y is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.The KSC1730Y transistor can have a current gain of 120 to 240. The gain of the KSC1730 will be in the range from 40 to 240, for the KSC1730O it will be in the range from 70 to 140, for the KSC1730R it will be in the range from 40 to 80.The MMBT918 (SOT-23) is the SMD version of the KSC1730Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC1730Y with the 2N3394, 2N3704, 2N3706, 2N3707, 2N3708, 2N3710, 2SC1317, 2SC1317-R, 2SC1383, 2SC1383-R, 2SC1518, 2SC1959, 2SC1959-Y, 2SC2001, 2SC2120, 2SC2236, 2SC2328A, 2SC2347, 2SC2710, 2SC3202, 2SC3202-Y, 2SC3203, 2SC3205, 2SC3266, 2SC3266-Y, 2SC3940, 2SC3940-R, 2SC4208, 2SC4208-R, 2SC458, 2SC536, 2SD467, 2SD467-C, 2SD468, 2SD468-C, 2SD471, 2SD545, 2SD592, 2SD592-R, 2SD592A, 2SD592A-R, 2SD734, BC168, BC169, KSC2328A, KSD1020, KSD1020-Y, KSD1021, KSD1021-Y, KSD261C, KSD261CY, KSD471AC, KSD471ACY, KTC3192, KTC3192Y, KTC3202, KTC3202Y, KTC3203, KTC3204, KTC3205, KTC3210, KTC3211, KTC3266, KTC3266-Y, KTD1146, KTD1146O or PN3643.