2SA1577T106R

Single Bipolar Transistors Overview

The ROHM Semiconductor 2SA1577T106R is a PNP medium power bipolar junction transistor (BJT) designed for general-purpose small signal amplification. It features a collector-emitter voltage of -32 V and a maximum continuous collector current of -500 mA. The device operates with a power dissipation rating of 200 mW at 25°C ambient temperature. Key electrical characteristics include a DC current gain (hFE) ranging from 120 to 390, a transition frequency (fT) of 200 MHz, and a low collector-emitter saturation voltage of 600 mV under specified conditions.

Single Bipolar Transistors Feature Summary

• Supports large collector current up to -500 mA for medium power applications.
• Features low collector-emitter saturation voltage suitable for low-voltage operation.
• Designed as a complementary pair to the 2SC4097 NPN transistor.

Single Bipolar Transistors Applications

• General purpose small signal amplifier circuits
• Low-voltage operational amplification stages

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix T106R against the official datasheet to confirm taping specifications and reel dimensions. Ensure the component meets RoHS compliance requirements if applicable to the target assembly process. Confirm that the package marking code H matches the intended identification standards for inventory management and automated placement systems.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with -32 V breakdown and -500 mA current capability is required in a SOT-323/UMT3 package. Consider its complementary relationship with the 2SC4097 for push-pull configurations. Evaluate the 200 mW power dissipation limit relative to thermal management constraints in the final design environment.

Single Bipolar Transistors Part Context

The 2SA1577 belongs to ROHM's standard discrete bipolar transistor lineup, optimized for surface mount technology. It utilizes the UMT3 (SOT-323) package, which provides a compact footprint suitable for space-constrained portable electronics and consumer devices requiring reliable small-signal performance.

Single Bipolar Transistors Replacement Considerations

The 2SC4097 is documented as the complementary NPN counterpart. No direct PNP substitutes are listed in the provided documentation; verify pinout and electrical equivalence before considering alternative manufacturers.

Single Bipolar Transistors FAQ

What is the maximum collector-base voltage for the 2SA1577?

The absolute maximum collector-base voltage (VCBO) is rated at -40 V.

Does the 2SA1577 have built-in biasing resistors?

No, the 2SA1577 is a standard bipolar junction transistor without integrated biasing resistors.

What is the typical output capacitance of this transistor?

The typical output capacitance (Cob) is 7.0 pF, measured at VC = -10 V and IE = 0 A at 1 MHz.