VLMH3100-GS18 Equivalent & Substitute Parts

Part Overview

The VLMH3100-GS18 is an amber LED indicator from Vishay Semiconductor Opto Division, designed for discrete indication applications. This surface-mount component operates at 2V forward voltage with a 10mcd brightness rating and features a 2.40mm round lens with flat top design. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring environmental compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter set, enabling design flexibility and supply chain optimization.

Substiute Parts

VLMH3100-GS18

Vishay Semiconductor Opto DivisionIn Stock: 2832VLMH3100-GS18 Datasheet

Current PartRFQ

VLMH3100-GS08

Vishay Semiconductor Opto DivisionIn Stock: 3744VLMH3100-GS08 Datasheet

Parametric EquivalentRFQ

SML-LX2832IC-TR

Lumex Opto/Components Inc.In Stock: 4827SML-LX2832IC-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified based on the following critical parameters that determine functional and mechanical compatibility:

Parametric Equivalents maintain identical or functionally equivalent specifications across all key electrical and mechanical parameters: forward voltage, test current, wavelength characteristics, lens dimensions, viewing angle, package type, and mounting configuration.

Manufacturer Recommended Alternatives are identified by the original manufacturer but may deviate in specific parameters such as brightness rating, test current, or physical dimensions while maintaining the same package footprint and mounting interface.

The substitution logic is based strictly on:

• Forward voltage compatibility (2V nominal)
• Package and mounting type (2-PLCC, Surface Mount)
• Lens size and style (2.40mm round with flat top)
• Viewing angle (120°)
• Wavelength range (amber/red spectrum, 618.5nm–635nm)

Parameter Comparison

Engineering Selection Recommendations

VLMH3100-GS08 is a parametric equivalent from the same manufacturer series (VLM.3). All electrical and mechanical specifications are identical to the VLMH3100-GS18, including forward voltage, test current, brightness rating, lens dimensions, and package configuration. Both parts maintain ROHS3 compliance and Active product status. This substitute provides direct interchangeability with no design modifications required.

SML-LX2832IC-TR is a manufacturer-recommended alternative from Lumex Opto/Components Inc. This part shares the same forward voltage (2V), lens size (2.40mm), lens style (round with flat top), viewing angle (120°), and mounting type (surface mount). However, the following parameters differ: test current is 20mA (versus 10mA), brightness rating is 25mcd (versus 10mcd), color is red (versus amber), and physical dimensions are 3.20mm L x 2.80mm W (versus 3.00mm L x 2.80mm W), with maximum height of 2.10mm (versus 1.85mm). The SML-LX2832IC-TR maintains ROHS3 compliance and Active product status. Selection of this alternative requires evaluation of brightness requirements, color compatibility with the application, and PCB layout accommodation for the slightly larger footprint and height.

Frequently Asked Questions (FAQ)

Q: Can VLMH3100-GS08 be used as a direct replacement for VLMH3100-GS18?

A: Yes. VLMH3100-GS08 is a parametric equivalent with identical electrical and mechanical specifications. No circuit modifications or PCB layout changes are required.

Q: What are the key differences between VLMH3100-GS18 and SML-LX2832IC-TR?

A: The primary differences are: test current (10mA versus 20mA), brightness (10mcd versus 25mcd), color (amber versus red), and physical dimensions (3.00mm L x 2.80mm W x 1.85mm H versus 3.20mm L x 2.80mm W x 2.10mm H). Both maintain 2V forward voltage and 120° viewing angle.

Q: Does the increased brightness of SML-LX2832IC-TR affect circuit design?

A: The higher test current (20mA) and brightness (25mcd) of the SML-LX2832IC-TR require evaluation of the current-limiting resistor and power budget in the application circuit. The forward voltage remains 2V, but the higher test current specification indicates different optical and thermal characteristics.

Q: Are all three parts RoHS compliant?

A: Yes. VLMH3100-GS18, VLMH3100-GS08, and SML-LX2832IC-TR are all ROHS3 compliant and suitable for applications requiring environmental compliance.

Q: Can SML-LX2832IC-TR be used in a design requiring amber color?

A: No. SML-LX2832IC-TR is a red LED. Color substitution is not possible without application-level evaluation and potential redesign of visual indication logic.

Q: What is the impact of the larger footprint of SML-LX2832IC-TR?

A: The SML-LX2832IC-TR has a length of 3.20mm (versus 3.00mm) and height of 2.10mm (versus 1.85mm). PCB layout must accommodate these dimensions. The width (2.80mm) is identical across all three parts.