2SA1859

Single Bipolar Transistors Overview

The Sanken Electric 2SA1859 is a Silicon PNP Epitaxial Planar Transistor designed as a complement to the 2SC4883/A series. It features a Collector-Emitter Voltage (VCEO) of -150 V and a continuous Collector Current (IC) rating of -2 A. The device operates within an ambient temperature range of -55°C to +150°C junction temperature, with a maximum power dissipation of 20 W at 25°C case temperature. Electrical characteristics include a DC current gain (hFE) ranging from 60 to 240 and a transition frequency (fT) of 60 MHz typical.

Single Bipolar Transistors Feature Summary

• Epitaxial planar construction for robust performance in audio output driver applications
• High voltage capability suitable for TV velocity-modulation circuits
• Complementary pairing with NPN type 2SC4883/A for push-pull configurations

Single Bipolar Transistors Applications

• Audio Output Driver stages
• TV Velocity-modulation circuits

Single Bipolar Transistors Procurement Notes

Verify datasheet revision and manufacturer source before procurement. Confirm specific suffix requirements if ordering variants like 2SA1859A. Note that this component is marked as not recommended for new designs; ensure existing inventory or legacy support availability aligns with project lifecycle needs.

Single Bipolar Transistors Selection Notes

Select based on required VCEO (-150V vs -180V for 'A' variant) and hFE binning. Ensure thermal management supports 20W dissipation. Verify compatibility with complementary 2SC4883/NPN devices in circuit topology. Consider obsolescence status for long-term production planning.

Single Bipolar Transistors Part Context

Part of Sanken Electric's discrete semiconductor lineup for power amplification. Manufactured using silicon epitaxial planar technology. Packaged in FM20 (TO-220F) format for through-hole mounting. Designed specifically for high-voltage switching and linear amplification roles in consumer electronics.

Single Bipolar Transistors Replacement Considerations

Official complement is 2SC4883/A. Alternative PNP transistors must match -150V/-180V VCEO, -2A IC, and TO-220F package constraints. Verify pinout compatibility and thermal resistance specifications before substitution.