KSA642CY Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -25 V
• Collector-Base Voltage, max: -30 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.3 A
• Collector Dissipation: 0.4 W
• DC Current Gain (h_fe): 120 to 240
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSA642CY 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. Suffix "C" means center collector in KSA642Y.
Here is an image showing the pin diagram of this transistor.The KSA642CY transistor can have a current gain of 120 to 240. The gain of the KSA642C will be in the range from 70 to 400, for the KSA642CG it will be in the range from 200 to 400, for the KSA642CO it will be in the range from 70 to 140.You can replace the KSA642CY with the 2N3702, 2N4952, 2N4954, 2N5366, 2SA1020, 2SA1020Y, 2SA1150, 2SA1270, 2SA1270-Y, 2SA1271, 2SA1273, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA1534, 2SA1534-R, 2SA1534A, 2SA1534A-R, 2SA1619, 2SA1619-R, 2SA1619A, 2SA1619A-R, 2SA1680, 2SA200, 2SA200-Y, 2SA562TM, 2SA562TM-Y, 2SA683, 2SA683-R, 2SA684, 2SA684-R, 2SA719, 2SA719-R, 2SA720, 2SA720-R, 2SA928A, 2SA950, 2SA952, 2SA966, 2SA984, 2SA993, 2SB1229, 2SB564, 2SB598, 2SB621, 2SB621-R, 2SB621A, 2SB621A-R, 2SB740, 2SB764, 2SB892, 2SB985, BC636, KSA1281-Y, KSA928A, KSB564AC, KSB564ACY, KSB810, KSB810-Y, KSB811, KSB811-Y, KTA1270, KTA1270Y, KTA1271, KTA1272, KTA1273, KTA1281, KTA1281Y, KTA1282, KTA1283, KTA200, KTA200-Y, KTB764, MPS3638, MPS3638A, PN3638, PN3638A, PN3644 or STB1277.