VLMY3101-GS18 Yellow LED 2-PLCC SMD Equivalent & Substitute Parts

Part Overview

The VLMY3101-GS18 is a yellow 588nm LED indication component in 2-SMD, J-Lead surface mount packaging manufactured by Vishay Semiconductor Opto Division. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The component delivers 8 millicandela at 10mA test current with a forward voltage of 2.1V typical, suitable for indicator applications requiring yellow wavelength emission in compact form factors.

Substiute Parts

VLMY3101-GS18

Vishay Semiconductor Opto DivisionIn Stock: 783VLMY3101-GS18 Datasheet

Current PartRFQ

VLMY3101-GS08

Vishay Semiconductor Opto DivisionIn Stock: 2524VLMY3101-GS08 Datasheet

Parametric EquivalentRFQ

VLMY31J1K2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 858VLMY31J1K2-GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the VLMY3101-GS18 is determined by strict equivalence across the following critical parameters:

• Color and Wavelength: Yellow emission at 588nm dominant wavelength (±5nm tolerance acceptable within VLM.3 series specifications)
• Optical Output: 8 millicandela rating at 10mA test current
• Electrical Characteristics: 2.1V forward voltage typical
• Physical Form Factor: 2-SMD, J-Lead package with 2.40mm diameter round flat-top lens
• Mechanical Dimensions: 3.00mm L x 2.80mm W x 1.85mm H maximum
• Compliance: ROHS3 compliant, MSL 2A rating
• Mounting: Surface mount configuration

The identified substitute parts VLMY3101-GS08 and VLMY31J1K2-GS08 meet all critical substitution criteria. Both are active product status components from the same VLM.3 series with identical optical, electrical, and mechanical specifications. The primary difference is packaging format (Tape & Reel versus cut tape), which does not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

VLMY3101-GS08 is the primary substitute for VLMY3101-GS18. Both parts share identical specifications across all critical parameters including wavelength (588nm dominant), optical output (8mcd), electrical characteristics (2.1V forward voltage), and physical form factor. The VLMY3101-GS08 carries active product status, ensuring long-term availability and supply chain continuity. The packaging difference (Tape & Reel versus cut tape) does not affect functional performance and is determined by procurement volume and assembly process requirements.

VLMY31J1K2-GS08 is a secondary substitute option. This part maintains functional equivalence with a peak wavelength of 590nm (dominant 590nm) compared to the main part's 585nm peak. The dominant wavelength difference of 2nm falls within acceptable yellow LED specification tolerances for general indication applications. This part is also active status with identical optical output, electrical characteristics, and mechanical dimensions. Selection between VLMY3101-GS08 and VLMY31J1K2-GS08 depends on wavelength precision requirements for the specific application.

Both substitute parts are ROHS3 compliant with MSL 2A rating, matching the compliance profile of the obsolete VLMY3101-GS18.

Frequently Asked Questions (FAQ)

Q: Can VLMY3101-GS08 directly replace VLMY3101-GS18 in existing designs?

A: Yes. The VLMY3101-GS08 is functionally equivalent across all critical parameters: identical wavelength (588nm), optical output (8mcd), forward voltage (2.1V), viewing angle (120°), and mechanical dimensions (3.00mm L x 2.80mm W x 1.85mm H). The packaging format difference (Tape & Reel versus cut tape) does not affect circuit performance or PCB layout.

Q: What is the wavelength difference between VLMY3101-GS08 and VLMY31J1K2-GS08?

A: VLMY3101-GS08 has a dominant wavelength of 588nm with peak at 585nm. VLMY31J1K2-GS08 has a dominant wavelength of 590nm with peak at 590nm. The 2nm difference in dominant wavelength represents a minor shift within the yellow spectrum and is acceptable for standard indication applications where precise wavelength matching is not critical.

Q: Are both substitute parts available in the same packaging options?

A: Both VLMY3101-GS08 and VLMY31J1K2-GS08 are supplied in Tape & Reel (TR) format. The original VLMY3101-GS18 was supplied in cut tape format. For high-volume assembly, Tape & Reel packaging is standard and provides cost efficiency. Cut tape format can typically be obtained through secondary sourcing if required for low-volume applications.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. Both VLMY3101-GS08 and VLMY31J1K2-GS08 are ROHS3 compliant with MSL 2A (4 Weeks) rating, matching the compliance profile of VLMY3101-GS18. Both parts are REACH unaffected and carry EAR99 ECCN classification.

Q: Which substitute should be selected for new designs?

A: VLMY3101-GS08 is recommended for new designs due to exact wavelength matching (588nm dominant) with the original VLMY3101-GS18 and active product status ensuring long-term availability. VLMY31J1K2-GS08 is suitable when wavelength tolerance of ±2nm is acceptable for the application.