VLMK333U2AB-GS18 Equivalent & Substitute Parts

Part Overview

The VLMK333U2AB-GS18 is an amber 2-PLCC surface mount LED manufactured by Vishay Semiconductor Opto Division. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part delivers amber indication at 616nm dominant wavelength with 850mcd brightness and operates at 2.1V forward voltage with 20mA test current.

Substiute Parts

VLMK333U2AB-GS18

Vishay Semiconductor Opto DivisionIn Stock: 826VLMK333U2AB-GS18 Datasheet

Current PartRFQ

VLMK333U2AB-GS08

Vishay Semiconductor Opto DivisionIn Stock: 1082VLMK333U2AB-GS08 Datasheet

Parametric EquivalentRFQ

HSMA-A100-R40J1

Broadcom LimitedIn Stock: 39167HSMA-A100-R40J1 Datasheet

MFR RecommendedRFQ

HSMU-A100-R00J1

Broadcom LimitedIn Stock: 2326HSMU-A100-R00J1 Datasheet

MFR RecommendedRFQ

HSMU-A100-S00J1

Broadcom LimitedIn Stock: 40917HSMU-A100-S00J1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters: color (amber), package type (2-PLCC), mounting method (surface mount), viewing angle (120°), and compliance certifications (ROHS3, REACH Unaffected). The substitute parts are grouped into two categories:

Parametric Equivalent: VLMK333U2AB-GS08 maintains identical electrical and optical specifications to the main part, differing only in packaging format (Tape & Reel versus standard packaging) and product status (Active versus Obsolete).

Manufacturer Recommended Alternatives: HSMA-A100-R40J1, HSMU-A100-R00J1, and HSMU-A100-S00J1 are Broadcom Limited amber 2-PLCC LEDs that share the same package footprint, mounting type, viewing angle, and compliance profile. These parts operate within acceptable forward voltage and wavelength ranges for amber indication applications.

Parameter Comparison

Engineering Selection Recommendations

VLMK333U2AB-GS08 is the direct parametric equivalent and primary substitute. This part maintains all electrical and optical specifications of the obsolete VLMK333U2AB-GS18 while offering active product status and improved availability. The only difference is packaging format (Tape & Reel). This part is suitable for direct replacement in all applications.

HSMA-A100-R40J1, HSMU-A100-R00J1, and HSMU-A100-S00J1 are alternative amber 2-PLCC LEDs from Broadcom Limited. These parts share identical package footprints, mounting types, viewing angles, and compliance certifications. Forward voltage variations (1.9V to 2.2V) fall within acceptable ranges for amber indication circuits. Wavelength differences (590nm to 592nm versus 616nm) remain within the amber spectrum. Brightness differences (320mcd versus 850mcd) require circuit evaluation based on application requirements. All three Broadcom parts maintain active product status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can VLMK333U2AB-GS08 be used as a direct replacement for VLMK333U2AB-GS18?

A: Yes. VLMK333U2AB-GS08 is a parametric equivalent with identical electrical and optical specifications. The only difference is packaging format (Tape & Reel versus standard packaging). No circuit modifications are required.

Q: What are the key differences between Vishay and Broadcom substitute parts?

A: VLMK333U2AB-GS08 maintains the exact specifications of the original part. Broadcom alternatives (HSMA-A100-R40J1, HSMU-A100-R00J1, HSMU-A100-S00J1) operate at different forward voltages (1.9V to 2.2V) and wavelengths (590nm to 592nm). All parts share the same 2-PLCC package footprint and 120° viewing angle. Circuit validation is required when switching to Broadcom parts.

Q: Are there mechanical compatibility concerns with Broadcom substitutes?

A: Broadcom parts have slightly larger dimensions (3.20mm L x 2.80mm W versus 3.00mm L x 2.80mm W) and greater height (2.10mm versus 1.85mm). PCB layout and clearance verification is necessary before implementation.

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

A: Yes. All listed substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 2A (4 Weeks) ratings. Compliance certifications are identical across all options.

Q: What packaging options are available for the substitute parts?

A: VLMK333U2AB-GS08 is available in Tape & Reel format. HSMA-A100-R40J1 is supplied in Tape & Reel. HSMU-A100-R00J1 is available in Cut Tape & Digi-Reel. HSMU-A100-S00J1 is supplied in Tape & Reel. Packaging selection depends on production volume and assembly requirements.