ECH8503-TL-H

Overview

The ECH8503-TL-H is a PNP bipolar transistor array manufactured by onsemi, housed in an 8-SMD Flat Lead package. It integrates two independent PNP transistors within a single surface-mount component. The device supports a maximum collector-emitter voltage of -50 V and a continuous collector current of -5 A per element. Key electrical parameters include a low saturation voltage (VCE(sat)) for efficient switching, a transition frequency (fT) of 280 MHz, and a power dissipation rating of 1.6 W. The emitter-base reverse voltage (VEBO) is specified at 6 V. This dual configuration allows for compact circuit designs requiring multiple PNP switching elements.

Feature Summary

• Integrates two independent PNP transistors in a single surface-mount package
• Features low saturation voltage for improved switching efficiency
• Supports high-speed operation with a 280 MHz transition frequency

Applications

• General-purpose switching circuits
• Logic interface applications
• Signal conditioning stages

Procurement Notes

Verify the specific suffix TL-H against the official datasheet to confirm packaging details and tape-and-reel specifications. Ensure the ordering part number matches the exact pinout and thermal characteristics required for the target PCB layout. Cross-reference the manufacturer's latest documentation to confirm compliance with current environmental standards and RoHS directives before finalizing procurement.

Selection Notes

Select this component when space constraints require dual PNP transistors in a small footprint. Consider the 5 A current rating and 280 MHz speed for moderate-frequency switching tasks. Evaluate the 1.6 W power dissipation capability against thermal management requirements in the application environment. Compare alternative packages if higher current density or different pin configurations are needed.

Part Context

This component belongs to onsemi's lineup of discrete bipolar junction transistor arrays. These devices are designed to replace multiple individual transistors, reducing board space and assembly complexity. The ECH8503 series specifically targets applications needing reliable PNP switching with low on-state resistance, fitting into broader portfolios of general-purpose semiconductor solutions.

Replacement Considerations

Check for direct pin-compatible alternatives from onsemi or other manufacturers offering similar -50V/-5A PNP dual arrays. Verify that substitute parts maintain equivalent fT, VCE(sat), and thermal performance metrics to ensure circuit functionality remains unchanged without redesign.