TLMF3100-GS08 Equivalent & Substitute Parts

Part Overview

The TLMF3100-GS08 is an orange 605nm LED indicator in a 2-SMD, J-Lead surface mount package manufactured by Vishay Semiconductor Opto Division. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part delivers 50mcd luminous intensity with a 2V forward voltage and 120° viewing angle, designed for discrete LED indication circuits requiring surface mount assembly.

Substiute Parts

TLMF3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 757TLMF3100-GS08 Datasheet

Current PartRFQ

VLMF3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 8594VLMF3100-GS08 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The VLMF3100-GS08 qualifies as a direct substitute for the TLMF3100-GS08 based on the following critical parameters:

Matching Parameters:

• Identical color specification: Orange
• Identical dominant wavelength: 605nm
• Identical forward voltage: 2V
• Identical test current: 10mA
• Identical viewing angle: 120°
• Identical lens style: Round with Flat Top
• Identical lens size: 2.40mm Dia
• Identical package type: 2-SMD, J-Lead
• Identical mounting type: Surface Mount
• Identical physical dimensions: 3.00mm L x 2.80mm W
• Identical RoHS compliance: ROHS3 Compliant
• Identical MSL rating: 2A (4 Weeks)

Allowable Variations:

• Millicandela rating: 50mcd (main part) vs. 90mcd (substitute) — higher brightness is acceptable in replacement applications
• Peak wavelength: 610nm (main part) vs. 590nm (substitute) — within orange spectrum range
• Height: 1.75mm (main part) vs. 1.85mm (substitute) — minimal difference within PCB assembly tolerances
• Product status: Obsolete (main part) vs. Active (substitute) — substitute is currently manufactured
• Packaging format: Bulk (main part) vs. Tape & Reel (substitute) — different supply format

Parameter Comparison

Engineering Selection Recommendations

The VLMF3100-GS08 is the appropriate substitute for the obsolete TLMF3100-GS08. Both components maintain identical electrical and mechanical specifications across all critical parameters, including forward voltage, test current, wavelength, viewing angle, and package configuration. The substitute part is currently in active production status with confirmed inventory availability (8560 pcs), whereas the main part is obsolete with limited stock (696 pcs).

Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental compatibility. The increased luminous intensity of the substitute (90mcd vs. 50mcd) provides enhanced brightness margin without affecting circuit compatibility. The minimal height variation (0.10mm) remains within standard PCB assembly tolerances and does not impact board layout or component placement.

The substitute is supplied in Tape & Reel format, which is standard for production environments and offers advantages in automated assembly processes compared to bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the VLMF3100-GS08 directly replace the TLMF3100-GS08 in existing designs?

A: Yes. Both parts share identical electrical characteristics (2V forward voltage, 10mA test current), optical properties (605nm dominant wavelength, 120° viewing angle), and mechanical specifications (2-SMD J-Lead package, 3.00mm L x 2.80mm W dimensions). The substitute operates within the same circuit parameters without modification.

Q: What is the significance of the higher millicandela rating in the substitute part?

A: The VLMF3100-GS08 delivers 90mcd compared to 50mcd in the main part. This represents increased luminous intensity, which is acceptable in replacement applications. Higher brightness does not create compatibility issues and may improve visibility in the target application.

Q: Are there any height considerations for PCB assembly?

A: The substitute part measures 1.85mm maximum height versus 1.75mm for the main part, a difference of 0.10mm. This variation is within standard PCB assembly tolerances and does not affect component placement, solder reflow profiles, or board clearance requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TLMF3100-GS08 and VLMF3100-GS08 are ROHS3 compliant with identical Moisture Sensitivity Level ratings of 2A (4 Weeks). Regulatory and environmental requirements are equivalent.

Q: What is the difference between the packaging formats?

A: The main part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. Tape & Reel is the standard supply method for automated production environments and offers advantages in component handling, placement accuracy, and inventory management.

Q: Are the wavelength specifications interchangeable?

A: Both parts specify 605nm as the dominant wavelength. The peak wavelength differs slightly (610nm vs. 590nm), but both values fall within the orange spectrum range and do not affect the visual color or optical performance in indication applications.