2SA1785E-AN

Single Bipolar Transistors Overview

The onsemi 2SA1785E-AN is a small signal PNP bipolar junction transistor (BJT) designed for general-purpose switching and amplification applications. It features a collector current of 1 A, a collector-emitter voltage rating of 400 V, and a transition frequency of 70 MHz. The device is housed in a through-hole 3-NMP package with a power dissipation capability of 1 W. This component provides reliable performance for high-voltage circuits requiring robust PNP switching characteristics.

Single Bipolar Transistors Feature Summary

• High voltage operation capability up to 400 V
• Suitable for high-frequency switching applications at 70 MHz
• Through-hole mounting for robust mechanical integration

Single Bipolar Transistors Applications

• General-purpose high-voltage switching circuits
• Amplifier stages requiring PNP configuration
• Industrial control systems utilizing through-hole components

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'AN' against the manufacturer's official datasheet to confirm exact electrical tolerances and marking codes. Ensure the procurement channel provides valid traceability documentation. Confirm that the 3-NMP package dimensions match the target PCB footprint requirements before finalizing orders.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring a PNP transistor with a minimum 400 V breakdown voltage and 1 A continuous current handling. Consider the 70 MHz transition frequency for moderate-speed switching needs. Evaluate the thermal management requirements for the 1 W power dissipation limit within the 3-NMP package constraints.

Single Bipolar Transistors Part Context

This part belongs to onsemi's portfolio of discrete bipolar transistors, supporting various industrial and consumer electronics designs. The 2SA series typically denotes PNP silicon planar transistors. The 2SA1785E-AN specifically addresses applications needing higher voltage ratings compared to standard low-voltage logic-level transistors.

Single Bipolar Transistors Replacement Considerations

Consult official cross-reference lists for equivalent PNP transistors with matching 400 V, 1 A, and 70 MHz specifications. Verify pinout compatibility for the 3-NMP package if substituting with other manufacturers' parts.