LTL-5234 Equivalent & Substitute Parts Reference

Part Overview

The LTL-5234 is a green LED indication component manufactured by Lite-On Inc., featuring a 5.00mm diameter round domed lens with clear transparency. This through-hole radial package device operates at 2.1V forward voltage with a 40mcd brightness rating and 569nm dominant wavelength. The component is actively produced and RoHS3 compliant, making it suitable for standard indication applications requiring green light output in the 565-569nm spectrum.

Substitute parts become necessary when the primary component experiences supply constraints, inventory limitations, or when design requirements permit alternative brightness levels or package configurations while maintaining core electrical and optical compatibility.

Substiute Parts

LTL-5234

LITEONIn Stock: 956LTL-5234 Datasheet

Current PartRFQ

LTL-307GE

Lite-On Inc.In Stock: 6847LTL-307GE Datasheet

DirectRFQ

HLMP-3568

Broadcom LimitedIn Stock: 950HLMP-3568 Datasheet

MFR RecommendedRFQ

SLR-56MC3F

Rohm SemiconductorIn Stock: 12414SLR-56MC3F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTL-5234 is determined by the following mandatory parameters:

Electrical Compatibility: Forward voltage (Vf) must be 2.1V to ensure direct circuit compatibility without redesign.

Optical Compatibility: Color must be green with wavelength in the 565-572nm range to maintain visual indication consistency.

Mechanical Compatibility: Mounting type must be through-hole radial configuration; lens size must be 5mm or T-1 3/4 package format to fit standard PCB footprints.

Regulatory Compliance: All substitute parts must maintain RoHS3 compliance status.

The three qualified substitute parts meet these criteria with variations in brightness rating (10.6mcd to 60mcd), test current (10mA to 20mA), physical height (6.35mm to 8.90mm), and product status classifications.

Parameter Comparison

Engineering Selection Recommendations

LTL-307GE (Lite-On Inc.): Direct manufacturer alternative with identical electrical specifications (2.1V, 569nm wavelength). Higher brightness rating (60mcd vs. 40mcd) and increased test current (20mA vs. 10mA) indicate enhanced luminous intensity. Greater physical height (8.60mm vs. 6.05mm) requires PCB layout verification. Active product status supports long-term availability. Suitable for applications requiring increased brightness within the same forward voltage envelope.

HLMP-3568 (Broadcom Limited): Maintains identical electrical parameters (2.1V, 10mA test current, 569nm wavelength) with reduced brightness (10.6mcd). Compact height (6.35mm) closely matches the LTL-5234 profile. Active product status and REACH unaffected classification provide regulatory assurance. Appropriate for space-constrained designs or applications where lower brightness is acceptable.

SLR-56MC3F (Rohm Semiconductor): Electrical compatibility confirmed (2.1V, 10mA test current, 40mcd brightness matching LTL-5234). Wavelength specification at 572nm remains within acceptable green spectrum range. Marked as "Not For New Designs," indicating end-of-life status with limited future availability. Maximum height of 8.90mm exceeds primary component. Use only when existing inventory supports project lifecycle requirements.

Frequently Asked Questions (FAQ)

Q: Can LTL-307GE replace LTL-5234 in existing designs without circuit modification?

A: Electrical substitution is direct due to identical 2.1V forward voltage. However, the 20mA test current versus 10mA baseline and 60mcd brightness versus 40mcd require circuit current-limiting verification to prevent over-driving. PCB height clearance must accommodate the 8.60mm maximum dimension versus 6.05mm original.

Q: What is the significance of the wavelength difference between LTL-5234 (569nm) and SLR-56MC3F (572nm)?

A: Both wavelengths fall within the green spectrum perception range. The 3nm difference is within human eye discrimination limits for green indication applications. Optical filtering or lens color matching in the application may influence perceptual equivalence.

Q: Why is SLR-56MC3F marked "Not For New Designs"?

A: This designation indicates the component is in end-of-life phase with no commitment to future production. Existing inventory may be available, but long-term supply cannot be guaranteed. Use only when project timelines align with available stock quantities.

Q: Are all substitute parts mechanically interchangeable with LTL-5234?

A: All substitute parts use through-hole radial mounting with 5mm lens packages. However, physical heights vary (6.05mm to 8.90mm). PCB layout and enclosure clearances must be verified before substitution to ensure mechanical fit.

Q: What compliance certifications apply to all listed parts?

A: All parts maintain RoHS3 compliance. LTL-307GE and SLR-56MC3F carry REACH Affected and REACH Unaffected designations respectively. HLMP-3568 is REACH Unaffected. Verify specific regulatory requirements for your application region.

Q: Can HLMP-3568 be used in high-brightness indication applications?

A: No. At 10.6mcd, HLMP-3568 provides approximately 26% of the LTL-5234 brightness. This part is suitable only for applications where lower luminous intensity is acceptable or where ambient lighting conditions permit reduced brightness visibility.