2SA1381FSTU

Single Bipolar Transistors Overview

The 2SA1381FSTU is a PNP silicon epitaxial planar transistor manufactured by onsemi. It is housed in a TSSOP-6 surface-mount package designed for high-density applications. The device features a collector-emitter voltage rating of -50 V and a continuous collector current capacity of -1 A. Key electrical parameters include a DC current gain (hFE) ranging from 100 to 400 at a collector current of -50 mA, and a low saturation voltage of -0.3 V maximum at -500 mA. The component operates within a junction temperature range of -55°C to +150°C and supports a storage temperature range of -65°C to +150°C.

Single Bipolar Transistors Feature Summary

• Utilizes an epitaxial planar structure for reliable performance in compact designs.
• Engineered for low saturation voltage to minimize power dissipation during switching.
• High current gain ensures efficient drive requirements in amplifier circuits.

Single Bipolar Transistors Applications

• General-purpose amplification in consumer electronics
• Switching applications in portable devices
• Driver stages for relay or LED control

Single Bipolar Transistors Procurement Notes

Verify the specific suffix 'FSTU' against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications and lead times. Ensure RoHS compliance status matches project requirements. Cross-reference the ordering part number with authorized distributors to avoid counterfeit components. Confirm that the TSSOP-6 footprint aligns with the PCB design guidelines provided in the official package dimensions document.

Single Bipolar Transistors Selection Notes

Select this component when a PNP transistor with moderate current handling and low saturation voltage is required in a small outline package. Compare hFE ranges and VCE(sat) limits against circuit load requirements. Consider thermal management capabilities within the TSSOP-6 enclosure for the intended ambient operating conditions. Verify compatibility with existing BOM alternatives if supply chain constraints exist.

Single Bipolar Transistors Part Context

This transistor belongs to onsemi's portfolio of general-purpose discrete semiconductors. It serves as a replacement for older PNP transistors in modern surface-mount designs. The device complements NPN counterparts in push-pull configurations. It is commonly used in audio pre-amplifiers and power management circuits where space efficiency is critical.

Single Bipolar Transistors Replacement Considerations

Check for direct pin-compatible substitutes such as the 2SA1381 without the FSTU suffix if packaging variations are acceptable. Verify equivalent hFE bins and VCE(sat) maximums before substituting. Consult the manufacturer's cross-reference guide for approved alternative part numbers.