PZTA55 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -4 V
• Collector Current − Continuous, max: -0.5 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 100
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-223

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the PZTA55 is the PZTA05.You can replace the PZTA55 with the 2STN2360, BCP52-16, BCP53-16, BSP31, BSP33, BSP61, BSP62, BSP62T1, BSP62T1G, BSP62T3, BSP62T3G, DZT2907A, NZT660, NZT660A, PZT2907A, PZTA56 or STN951.