TLHY5400-AS12Z LED Yellow Diffused T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The TLHY5400-AS12Z is a yellow 588nm LED indication component manufactured by Vishay Semiconductor Opto Division. This discrete 2.4V radial through-hole LED features a 5mm T-1 3/4 diffused lens with 10mcd brightness rating and 60° viewing angle. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

TLHY5400-AS12Z

Vishay Semiconductor Opto DivisionIn Stock: 1072TLHY5400-AS12Z Datasheet

Current PartRFQ

TLHY5400

Vishay Semiconductor Opto DivisionIn Stock: 1004TLHY5400 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLHY5400-AS12Z is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Color: Yellow
• Wavelength - Dominant: 588nm
• Wavelength - Peak: 585nm
• Voltage - Forward (Vf) Typical: 2.4V
• Millicandela Rating: 10mcd
• Lens Style: Round with Domed Top
• Lens Size: 5mm, T-1 3/4
• Lens Transparency: Diffused
• Viewing Angle: 60°
• Mounting Type: Through Hole
• Package / Case: Radial
• Height (Max): 12.80mm
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The TLHY5400 (base model without suffix) qualifies as a direct equivalent substitute. Both components share identical optical, electrical, and mechanical specifications. The primary distinction is product status: TLHY5400-AS12Z is obsolete, while TLHY5400 maintains active status with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The TLHY5400 is the primary active equivalent for the obsolete TLHY5400-AS12Z. Both components are manufactured by Vishay Semiconductor Opto Division and maintain identical optical, electrical, and mechanical specifications. The TLHY5400 carries active product status with current manufacturing support and inventory availability.

Both components satisfy ROHS3 compliance requirements and carry MSL 1 (Unlimited) moisture sensitivity classification, indicating no special handling or storage constraints during assembly and deployment.

The test current specification differs between the two parts (20mA for TLHY5400-AS12Z versus 10mA for TLHY5400). This variance reflects measurement conditions and does not affect forward voltage or brightness characteristics at standard operating conditions.

Packaging format differs between the two components: TLHY5400-AS12Z is supplied in tube packaging, while TLHY5400 is supplied in bulk packaging. This distinction affects procurement and handling procedures but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can TLHY5400 directly replace TLHY5400-AS12Z in existing designs?

A: Yes. The TLHY5400 provides direct functional equivalence. Both components share identical forward voltage (2.4V), brightness rating (10mcd), wavelength specifications (588nm dominant, 585nm peak), lens configuration (5mm T-1 3/4 diffused round domed), viewing angle (60°), and through-hole radial mounting. Mechanical fit and electrical performance are identical.

Q: What is the significance of the different test current specifications?

A: The TLHY5400-AS12Z specifies 20mA test current while TLHY5400 specifies 10mA test current. These values represent measurement conditions used during component characterization and do not indicate different operating requirements. Both components operate at identical forward voltage and produce equivalent brightness at standard application currents.

Q: Are there packaging considerations when substituting TLHY5400 for TLHY5400-AS12Z?

A: Yes. TLHY5400-AS12Z is supplied in tube packaging, while TLHY5400 is supplied in bulk packaging. This affects procurement quantities, handling procedures, and storage methods. Verify bulk packaging compatibility with your assembly and inventory management processes.

Q: Do both components meet current environmental compliance standards?

A: Yes. Both TLHY5400-AS12Z and TLHY5400 are ROHS3 compliant and carry REACH Unaffected status. Both components satisfy current environmental and regulatory requirements for electronic component manufacturing and deployment.

Q: What is the moisture sensitivity classification for these components?

A: Both components carry MSL 1 (Unlimited) classification. This indicates no moisture sensitivity constraints. Components do not require special drying, baking, or controlled humidity storage procedures prior to assembly or deployment.

Q: Are there any restrictions on using TLHY5400 in applications originally designed for TLHY5400-AS12Z?

A: No restrictions exist based on provided electrical, optical, and mechanical specifications. The components are functionally equivalent. Verify application-specific requirements such as brightness level, viewing angle, and forward voltage tolerance against your circuit design parameters.