PO13OAA 0.8A SCRs

Category: Electronics, STMicroelectronics Inc, Trigger Devices

PO13OAA 0.8A SCRs Overview

The PO13OAA datasheet presents detailed information regarding the specifications and use of gate sensitive silicon-controlled rectifiers (SCRs) intended for electronic starters in fluorescent tube lamps. The SCRs are encapsulated in TO-92 packaging and are paired with a TN22 A.SDTM and resistor to form the complete circuit.

Main Features

The key attributes of the PO13OAA SCR are its RMS on-state current of 0.8A, maximum repetitive peak off-state/blocking voltage of 100V, and a gate trigger current of 0.2mA.

Absolute Ratings

The datasheet details several absolute maximum ratings for the device, including an RMS on-state current (IT(RMS)) of 0.8A at a 180° conduction angle and a temperature of 55°C. The average on-state current (IT(AV)) is listed at 0.5A, and the non-repetitive surge peak on-state current (ITSM) can reach up to 0.24A2s. The device’s critical rate of rise of on-state current (dl/dt) is stated as 50A/µs at a temperature of 125°C with a frequency of 60Hz. Additionally, peak gate current (IGM), average gate power dissipation (PG(AV)), storage junction temperature range (Tstg), and operating junction temperature range indicate the safe operating thresholds of the SCR.

Electrical Characteristics

Electrical parameters, provided at an ambient temperature of 25°C unless otherwise specified, include the gate trigger current (Igt) at 0.2 mA, non-trigger gate voltage (VGD) with a maximum of 600mV, the holding current (IH) which ensures the SCR remains on once triggered, and the rate of change of off-state voltage (dV/dt) that the device can tolerate. Moreover, the on-state voltage drop (VTM) is listed for an on-state current of 1.6A. Threshold voltage (Vto) and dynamic resistance (Rd) are provided to determine the voltage at which the device starts conducting and its resistance during operation, respectively.

Thermal Resistances

Thermal resistance is a critical parameter for SCRs as it affects the stability and lifetime of the device. The PO13OAA SCR has a junction-to-case thermal resistance (Rth(j-c)) of 80°C/W and a junction-to-ambient thermal resistance (Rth(j-a)) of 150°C/W when DC current is applied.

Product Selector

The datasheet specifies that the part PO13OAA is designed for applications with a working voltage of 100V and a sensitivity of 1mA. Its packaging type is TO-92, renowned for its compact size and ability to be used in various applications including the convenience of being through-hole mounted for PCB design.