SAP series power Darlington transistors with built-in temperature compensation diodes are suitable for audio amplifier applications.
The SAPseries Darlington transistors integrate temperature‑compensation diodes and an emitter resistor in a single package, providing real‑time compensation and reducing part count. Features include built‑in diodes, symmetrical PNP/NPN pinouts, and reduced labor for assembly.
Application notes describe recommended operating conditions, external variable resistor adjustment (0‑200 Ω) to set an idling current of 40 mA, and guidelines for parallel push‑pull configurations and emitter‑resistor protection in audio amplifier designs.
| Power rating (Pc) | 150 W |
|---|---|
| Collector‑Emitter Voltage (Vceo) | 160 V |
| Collector Current (Ic) | 16 A |
| Emitter resistor (hre) | 0.22 kΩ |
| Weight | ≈ 8.3 g |
It uses built‑in temperature‑compensation diodes together with an emitter resistor to achieve real‑time compensation.
The idling current is adjusted to 40 mA using an external variable resistor.
A variable resistor from 0 Ω to 200 Ω (0 to 2000 Ω in the text) is used to set the idling current.