2SA505-Y Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 1 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-126

Here is an image showing the pin diagram of this transistor.The 2SA505-Y transistor can have a current gain of 120 to 240. The gain of the 2SA505 will be in the range from 40 to 240, for the 2SA505-O it will be in the range from 70 to 140, for the 2SA505-R it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SA505-Y might only be marked "A505-Y".The complementary NPN transistor to the 2SA505-Y is the 2SC496-Y.The 2SA1364 (SOT-89), 2SB1122 (SOT-89), 2SB710A (SOT-23), 2SB710A-R (SOT-23), 2SB766A (SOT-89), 2SB766A-R (SOT-89), BCP52 (SOT-223), BCP52-16 (SOT-223), BCW89 (SOT-23), BCX52 (SOT-89), BCX52-16 (SOT-89), BSP31 (SOT-223), BSR31 (SOT-89), DXT2907A (SOT-89), DZT2907A (SOT-223), FJX2907A (SOT-323), FMMT2907A (SOT-23), FMMT2907AR (SOT-23), FMMTA55 (SOT-23), KN2907AS (SOT-23), KST2907A (SOT-23), KST55 (SOT-23), KTN2907AS (SOT-23), KTN2907AU (SOT-323), MMBT2907A (SOT-23), MMBT4354 (SOT-23), MMBT4355 (SOT-23), MMBTA55 (SOT-23), MMST2907A (SOT-323), PMBT2907A (SOT-23), PMST2907A (SOT-23), PZT2907A (SOT-223), PZTA55 (SOT-223) and SMBTA55 (SOT-23) is the SMD version of the 2SA505-Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA505-Y with the 2SA1214, 2SB1142, 2SB1143, 2SB1144, 2SB1165, 2SB1166, 2SB1167, 2SB1168, 2SB631, 2SB744A, 2SB986, BD138, BD138-16, BD138G, BD140, BD140-16, BD140G, BD168, BD170, BD178, BD180, BD180G, BD190, BD229, BD231, BD236, BD236G, BD238, BD238G, BD378, BD378-16, BD380, BD380-16, BD788, BD788G, BD790, BD792, KSB744A, KSE171, KSE172, KTA1715, KTA1715-Y, MJE171, MJE171G, MJE172, MJE172G, MJE235, MJE252, MJE254, MJE711 or MJE712.