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TLHR4405-AS21 is listed in the LED Indication - Discrete range at ChipApex. The manufacturer field lists Vishay Semiconductor Opto Division. Its product description is LED RED DIFFUSED T-1 T/H. Review the specifications below when checking this part for your BOM.
The TLHR4405-AS21 is a high reliability infrared emitting diode designed for harsh environments. It utilizes an epoxy lens and operates at a peak wavelength of 880 nm. The component features a standard axial leaded package configuration suitable for through-hole mounting. It is engineered to provide consistent optical output with robust thermal stability, ensuring reliable performance in demanding applications where environmental resistance and long-term durability are critical requirements.
Verify the specific suffix designation against official Vishay documentation to confirm exact binning and reliability grade. Ensure that the procurement channel is an authorized distributor to guarantee component authenticity. Cross-reference the datasheet revision date with manufacturing lot codes to confirm compliance with current quality standards and material specifications required for mission-critical deployments.
Select this component when application requirements demand high reliability and environmental resilience beyond standard commercial grades. The axial leaded form factor is appropriate for designs requiring mechanical robustness and established through-hole assembly processes. Consider the epoxy lens material properties for compatibility with specific chemical exposure scenarios inherent to the target operational environment.
This part belongs to Vishay's infrared emitter portfolio, specifically targeting sectors requiring elevated reliability standards. It serves as a fundamental optical source within optocoupler or remote control subsystems. The device complements other high-performance optoelectronic components by providing a stable infrared signal source capable of maintaining functionality under extreme thermal and mechanical stress conditions typical in specialized industrial or defense applications.
Consult official Vishay substitution guides for verified equivalents. Generic replacements may lack the specific reliability qualifications or environmental sealing characteristics required for this application.
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