VLMK3100-GS18 Equivalent & Substitute Parts

Part Overview

The VLMK3100-GS18 is a red 630nm LED indication component manufactured by Vishay Semiconductor Opto Division. This surface mount device features a 2-SMD J-Lead package with a round flat-top lens and 50mcd brightness rating. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications. The VLMK3100 series provides standardized red LED indication across multiple packaging configurations, with substitutes available in active product status.

Substiute Parts

VLMK3100-GS18

Vishay Semiconductor Opto DivisionIn Stock: 721VLMK3100-GS18 Datasheet

Current PartRFQ

VLMK3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 3389VLMK3100-GS08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VLMK3100-GS18 is determined by strict equivalence across the following critical parameters:

• Wavelength characteristics (dominant 630nm, peak 643nm)
• Forward voltage (1.9V typical)
• Test current (10mA)
• Brightness output (50mcd)
• Viewing angle (120°)
• Lens geometry (round flat-top, 2.40mm diameter)
• Package type (2-SMD J-Lead)
• Physical dimensions (3.00mm L x 2.80mm W, 1.85mm max height)
• Environmental compliance (ROHS3, MSL 2A)

The VLMK3100-GS08 qualifies as a parametric equivalent substitute. Both parts share identical electrical and optical specifications, mechanical dimensions, and compliance certifications. The primary distinction is packaging format: VLMK3100-GS18 is supplied in standard packaging, while VLMK3100-GS08 is supplied in Tape & Reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

The VLMK3100-GS08 is the direct parametric equivalent for VLMK3100-GS18 applications. All electrical, optical, and mechanical specifications are identical. The VLMK3100-GS08 carries active product status from Vishay Semiconductor Opto Division, ensuring continued availability and manufacturing support. Both parts maintain ROHS3 compliance and identical moisture sensitivity specifications.

Selection between these parts depends on procurement and assembly requirements. The VLMK3100-GS08 Tape & Reel format is standard for high-volume surface mount assembly operations. The VLMK3100-GS18 standard packaging format is suitable for lower-volume applications or manual assembly scenarios. From a compliance and performance standpoint, either part satisfies identical circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can VLMK3100-GS08 directly replace VLMK3100-GS18 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The VLMK3100-GS08 operates at the same forward voltage (1.9V), test current (10mA), and produces identical optical output (50mcd at 630nm dominant wavelength). Physical dimensions and mounting characteristics are identical. The only difference is packaging format.

Q: What is the difference between standard packaging and Tape & Reel format?

A: VLMK3100-GS18 uses standard packaging suitable for manual handling and lower-volume orders. VLMK3100-GS08 uses Tape & Reel (TR) format, which is optimized for automated pick-and-place assembly equipment and high-volume production runs. Both contain identical components.

Q: Are there compliance or certification differences between these parts?

A: No. Both VLMK3100-GS18 and VLMK3100-GS08 carry identical ROHS3 compliance status and MSL 2A (4 Weeks) moisture sensitivity ratings. REACH and ECCN classifications are identical.

Q: Why is VLMK3100-GS18 listed as obsolete?

A: VLMK3100-GS18 has been superseded by VLMK3100-GS08 in Vishay's active product portfolio. The VLMK3100-GS08 provides identical performance with improved packaging for modern manufacturing processes. Existing inventory of VLMK3100-GS18 remains available, but new designs should specify VLMK3100-GS08.

Q: Are there any optical or brightness differences between these parts?

A: No. Both parts deliver 50mcd brightness at 10mA test current with identical wavelength characteristics (630nm dominant, 643nm peak). Viewing angle (120°) and lens geometry (round flat-top, 2.40mm diameter) are identical.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching wavelength (630nm dominant), forward voltage (1.9V), brightness output (50mcd), viewing angle (120°), lens style and size (round flat-top, 2.40mm), package type (2-SMD J-Lead), and physical dimensions (3.00mm L x 2.80mm W x 1.85mm max height). All these parameters are identical between VLMK3100-GS18 and VLMK3100-GS08.