VLMR33R2U2-GS18 Equivalent & Substitute Parts

Part Overview

The VLMR33R2U2-GS18 is an amber 2-SMD surface mount LED from Vishay Semiconductor Opto Division, designed for indication applications with a dominant wavelength of 617nm and 425mcd brightness. This part is currently obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the 2-PLCC package footprint and preserve critical electrical characteristics including forward voltage, current rating, and viewing angle specifications.

Substiute Parts

VLMR33R2U2-GS18

Vishay Semiconductor Opto DivisionIn Stock: 1023VLMR33R2U2-GS18 Datasheet

Current PartRFQ

VLMK335U1V2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 7679VLMK335U1V2-GS08 Datasheet

MFR RecommendedRFQ

VLMR33T1U2-GS08

Vishay Semiconductor Opto DivisionIn Stock: 3345VLMR33T1U2-GS08 Datasheet

Parametric EquivalentRFQ

HSMA-A100-Q00J1

Broadcom LimitedIn Stock: 10449HSMA-A100-Q00J1 Datasheet

MFR RecommendedRFQ

HSMA-A101-R8WJ1

Broadcom LimitedIn Stock: 35056HSMA-A101-R8WJ1 Datasheet

MFR RecommendedRFQ

HSMA-A101-S00J1

Broadcom LimitedIn Stock: 3299HSMA-A101-S00J1 Datasheet

MFR RecommendedRFQ

HSMU-A100-S00J1

Broadcom LimitedIn Stock: 40917HSMU-A100-S00J1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution logic follows these parameters:

Critical Compatibility Parameters:

• Package / Case: 2-PLCC (2-SMD, J-Lead)
• Mounting Type: Surface Mount
• Color: Amber
• Viewing Angle: 120°
• Lens Style: Round with Flat Top

Electrical Parameters for Substitution:

• Voltage - Forward (Vf): 1.9V to 2.2V range acceptable
• Current - Test: 20mA to 30mA range acceptable
• Wavelength - Dominant: 590nm to 617nm range acceptable

Group 1: Parametric Equivalents (Vishay VLM Series) Parts maintaining identical electrical specifications and wavelength characteristics as the original VLMR33R2U2-GS18.

Group 2: Manufacturer Recommended Substitutes (Broadcom HSMA/HSMU Series) Parts with compatible package footprint and electrical characteristics but different wavelength and brightness specifications. These are cross-manufacturer alternatives suitable for applications where exact wavelength matching is not critical.

Parameter Comparison

Engineering Selection Recommendations

For Direct Parametric Replacement: VLMR33T1U2-GS08 is the primary parametric equivalent, maintaining identical forward voltage (2V), test current (30mA), and wavelength characteristics (617nm dominant, 624nm peak) as the obsolete VLMR33R2U2-GS18. This part is active and available in high inventory (3326 pcs). Footprint and package specifications are identical. This substitution requires no circuit modifications.

For Enhanced Brightness with Maintained Wavelength: VLMK335U1V2-GS08 provides higher brightness (630mcd versus 425mcd) while maintaining similar wavelength characteristics (616nm dominant, 622nm peak). Forward voltage increases to 2.1V and test current reduces to 20mA. This part carries AEC-Q101 automotive qualification and improved moisture sensitivity (2, 1 Year versus 2A, 4 Weeks). Suitable for applications where increased brightness is acceptable and forward voltage tolerance exists.

For Cross-Manufacturer Substitution: Broadcom HSMA and HSMU series parts provide compatible 2-PLCC package footprints with 120° viewing angle. These parts operate at lower forward voltages (1.9V to 2.2V) and reduced test currents (20mA). Wavelength shifts to 590nm to 592nm range, resulting in a more yellow-amber appearance compared to the original 617nm specification. Brightness varies from 100mcd to 320mcd. These substitutes are suitable only when wavelength shift is acceptable to the application.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and EAR99 export classification. VLMK335U1V2-GS08 includes AEC-Q101 automotive qualification, suitable for automotive-grade applications. Moisture sensitivity levels are consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can VLMR33T1U2-GS08 be used as a direct replacement for VLMR33R2U2-GS18? A: Yes. VLMR33T1U2-GS08 maintains identical electrical specifications (2V forward voltage, 30mA test current), wavelength characteristics (617nm dominant), package footprint (2-PLCC, 3.00mm L x 2.80mm W), and mounting type. No circuit modifications are required.

Q: What is the difference between Vishay VLM series substitutes and Broadcom HSMA/HSMU series? A: Vishay VLM series parts maintain the original 617nm wavelength specification, while Broadcom parts shift to 590-592nm, producing a more yellow-amber color. Broadcom parts also operate at lower forward voltages (1.9V-2.2V) and reduced test currents (20mA). Package dimensions differ slightly (Broadcom: 3.20mm L x 2.80mm W versus Vishay: 3.00mm L x 2.80mm W).

Q: Is VLMK335U1V2-GS08 suitable for automotive applications? A: Yes. VLMK335U1V2-GS08 carries AEC-Q101 automotive qualification and improved moisture sensitivity rating (2, 1 Year). It provides higher brightness (630mcd) while maintaining wavelength compatibility (616nm dominant).

Q: Will Broadcom HSMA-A101-S00J1 work in my circuit designed for VLMR33R2U2-GS18? A: Electrical compatibility exists within the 2-PLCC package. However, forward voltage differs (1.9V versus 2V) and wavelength shifts from 617nm to 590nm. Circuit validation is necessary to confirm brightness and color requirements are met.

Q: What are the package dimension differences between substitute options? A: Vishay VLM series (VLMR33T1U2-GS08, VLMK335U1V2-GS08) maintain the original 3.00mm L x 2.80mm W footprint with 1.85mm maximum height. Broadcom HSMA/HSMU series parts measure 3.20mm L x 2.80mm W with 2.10mm maximum height. PCB layout verification is required for Broadcom substitutes.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, consistent with the original VLMR33R2U2-GS18.