2SA1020 PNP Power Transistor
The 2SA1020, a one-watt high-current PNP transistor from ON Semiconductor, delivers impressive performance, reliability, and versatility for demanding power-electronics applications. With a collector-emitter voltage rating of up to 50 V and the capability to handle continuous collector currents of 2 A, this component excels in power switching and amplifier designs. Packaged in a compact TO‑92 (TO‑226) form, the 2SA1020 offers a strong balance of current capacity and thermal performance, making it a go-to choice for both industrial and commercial power circuits.
Built for durability and efficiency, the 2SA1020 maintains a low saturation voltage, typically around ‑0.5 V at 1 A, which helps minimize power loss during conduction. Its high-speed switching capability (typical storage time ~1 µs) and transition frequency of around 100 MHz ensure it remains responsive in fast-switching applications. The device is also specified for a wide operating junction temperature range from –55 °C to +150 °C, meaning it can stand up to harsh thermal environments without performance degradation. These attributes make it well-suited for scenarios such as power‑supply regulators, industrial motor drives, voltage amplifiers, and commercial control systems.
Beyond raw performance, the 2SA1020’s design prioritizes reliability and long-term operation. Its power dissipation rating allows for 900 mW at ambient temperature (derating above 25 °C), while at case temperature it can sustain up to 1.5 W – giving designers sufficient thermal headroom in real-world systems. Furthermore, the device is available in a lead‑free package, aligning with RoHS-compliant manufacturing practices. Whether deployed in commercial power amplifiers, automation equipment, or industrial control boards, the 2SA1020 offers consistent, energy-efficient, and dependable operation over extended lifetimes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Device Type | PNP Bipolar Junction Transistor | |
| Collector–Emitter Voltage (V<sub>CE</sub>) | 50 | V dc |
| Collector–Base Voltage (V<sub>CB</sub>) | 50 | V dc |
| Emitter–Base Voltage (V<sub>EB</sub>) | 5.0 | V dc |
| Collector Current (I<sub>C</sub>, continuous) | 2.0 | A dc |
| Power Dissipation (P<sub>D</sub>) @ T<sub>A</sub>=25 °C | 900 | mW |
| Power Dissipation @ T<sub>C</sub>=25 °C | 1.5 | W |
| Thermal Resistance (R<sub>θJA</sub>) | 125 | °C/W |
| Thermal Resistance (R<sub>θJC</sub>) | 83.3 | °C/W |
| Operating & Storage Junction Temperature | –55 to +150 | °C |
| Transition Frequency (f<sub>T</sub>) | ≈ 100 | MHz |
| Saturation Voltage (V<sub>CE(sat)</sub>) | –0.5 | V (IC = –1 A) |
We dispatch all orders through Leopard Courier and TCS, while bulk or heavy shipments are sent via cargo (bilty) for safer handling and better rates. Standard delivery time is 2–3 working days for both courier and cargo deliveries, depending on your location. Orders are dispatched within 24 hours after payment confirmation, and the tracking number is shared on WhatsApp once shipped. Shipping charges depend on parcel weight and destination, and may be waived for bulk or corporate orders. Please ensure your contact details and address are accurate to avoid delays. For urgent delivery or specific shipping requirements, contact us directly on WhatsApp at 0303 56888 44.
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