2SA684-AP

Single Bipolar Transistors Overview

The MCC 2SA684-AP is a PNP epitaxial silicon transistor housed in a TO-92L package. It features a maximum collector current of -1 A and power dissipation of 0.75 W at 25°C. Key electrical ratings include a collector-emitter voltage (VCEO) of -50 V, collector-base voltage (VCBO) of -60 V, and emitter-base voltage (VEBO) of -5 V. The device exhibits a DC current gain (hFE) ranging from 85 to 340 and a transition frequency (fT) of 200 MHz. Thermal resistance is 167°C/W junction to ambient, with an operating temperature range of -55°C to +150°C.

Single Bipolar Transistors Feature Summary

• Designed for low-frequency power amplifier applications
• Epoxy casing meets UL 94 V-0 flammability rating
• Moisture sensitivity level 1 classification

Single Bipolar Transistors Applications

• Low-frequency power amplification circuits
• General-purpose switching applications within specified thermal limits

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix against official documentation before procurement. The standard part number indicates ammo packing; alternative suffixes may denote bulk packaging or halogen-free variants. Confirm RoHS compliance status directly with the manufacturer or authorized distributors to ensure adherence to current environmental regulations and quality standards.

Single Bipolar Transistors Selection Notes

Select this component for designs requiring a PNP transistor with a -1 A continuous collector current capability. Ensure the circuit operates within the -50 V collector-emitter voltage limit and respects the 0.75 W power dissipation constraint at ambient temperatures above 25°C by applying appropriate derating curves. Verify that the required hFE gain falls within the 85 to 340 range for the specific application conditions.

Single Bipolar Transistors Part Context

This component belongs to the Micro Commercial Components discrete semiconductor portfolio, specifically categorized as a PNP epitaxial silicon transistor. It utilizes a TO-92L through-hole package suitable for general electronic assemblies. The product line emphasizes compliance with international safety and environmental standards, including UL flammability ratings and RoHS directives.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing requires independent verification of pinout compatibility, electrical parameters, and thermal characteristics against the original design specifications.

Single Bipolar Transistors FAQ

What is the maximum collector current rating?

The maximum collector current (IC) is rated at -1 A.

Does the standard part number include halogen-free materials?

No, the standard 2SA684-AP does not specify halogen-free composition. Halogen-free versions require adding the "-HF" suffix to the part number.

What is the transition frequency of the transistor?

The transition frequency (fT) is 200 MHz, measured under conditions of VCE=-10V, IC=-50mA, and f=200MHz.