DPC817L-A-TR-V

Overview

The DPC817L-A-TR-V is a single-channel transistor output optocoupler manufactured by Diodes Incorporated. It features a gallium arsenide infrared LED coupled to an NPN phototransistor in a surface-mount SLM-4 package. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 30 mA, and a forward voltage of 1.25 V at 5 mA input current. The device provides 5000 Vrms isolation voltage and operates within a temperature range of -55°C to +110°C. Typical rise and fall times are 18 µs.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical coupling technology.
• Features a compact surface-mount SLM-4 package designed for automated assembly processes.
• Utilizes a standard NPN phototransistor output suitable for interfacing with digital logic systems.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and microcontrollers
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'A-TR-V' against the manufacturer's latest datasheet to confirm tape-and-reel packaging quantities and binning specifications. Ensure that the SLM-4 footprint matches the design board layout. Confirm compliance with RoHS directives and check for any recent product change notices affecting lead frame material or molding compound composition prior to final procurement authorization.

Selection Notes

Select this component when a low-profile surface-mount solution is required for galvanic isolation. The 5000 Vrms rating supports high-noise environments. Compare the CTR range of 80% to 160% against circuit gain requirements. Consider thermal dissipation limits and ensure the operating junction temperature remains within specified bounds during continuous operation in enclosed assemblies.

Part Context

This part belongs to the DPC817 series of transistor output optocouplers from Diodes Incorporated. The series offers various package options including through-hole DIP and surface-mount configurations. The L-series designation typically indicates specific mechanical dimensions or reel packaging standards compared to other variants in the family, maintaining consistent electrical performance characteristics across the lineup.

Replacement Considerations

Direct substitutes may include DPC817L-C-TR-V or DPC817D-B-TU-V depending on packaging preference. Verify pinout compatibility and CTR ranges before substitution. Cross-reference with generic PC817 equivalents only if electrical ratings and isolation voltages match exactly. Always validate replacement parts against the original datasheet specifications.