SLI-343M8G3F Equivalent & Substitute Parts

Part Overview

The SLI-343M8G3F is a green diffused T-1 through-hole LED manufactured by Rohm Semiconductor, part of the EXCELED™ series. This component operates at 2.2V forward voltage with a 150mcd brightness rating and 572nm dominant wavelength, designed for LED indication applications in discrete electronic assemblies. The part maintains Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part experiences inventory constraints, extended lead times, or when design flexibility permits selection from qualified alternatives meeting equivalent electrical and mechanical specifications.

Substiute Parts

SLI-343M8G3F

Rohm SemiconductorIn Stock: 2287SLI-343M8G3F Datasheet

Current PartRFQ

SLI-343MG3F

Rohm SemiconductorIn Stock: 10850SLI-343MG3F Datasheet

Parametric EquivalentRFQ

WP710A10SGD

KingbrightIn Stock: 4066WP710A10SGD Datasheet

SimilarRFQ

WP710A10SGD5V

KingbrightIn Stock: 1462WP710A10SGD5V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SLI-343M8G3F is determined by the following critical parameters:

Mandatory Matching Parameters:

• Color: Green
• Lens Transparency: Diffused
• Mounting Type: Through Hole
• Package / Case: Radial
• Supplier Device Package: T-1
• Viewing Angle: 40°
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Voltage - Forward (Vf): ±0.1V tolerance
• Millicandela Rating: Application-dependent brightness tolerance
• Wavelength - Dominant: ±4nm tolerance within green spectrum
• Lens Size: ±0.1mm diameter tolerance
• Height (Max): ±0.3mm tolerance

The substitute parts listed below meet all mandatory matching parameters and fall within allowable variation ranges for electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

SLI-343MG3F (Parametric Equivalent - Rohm Semiconductor): This part is a direct parametric equivalent from the same manufacturer with identical mechanical dimensions and package specifications. Forward voltage is 2.1V, within 0.1V tolerance of the main part. Brightness rating is 180mcd, exceeding the main part specification. Product status is listed as Not For New Designs; selection should be limited to replacement or continuation applications where design freeze permits use of legacy components.

WP710A10SGD (Similar - Kingbright): This Kingbright alternative meets all mandatory package and mechanical parameters. Forward voltage matches at 2.2V. Dominant wavelength is 568nm, within acceptable green spectrum tolerance. Millicandela rating is 40mcd, significantly lower than the main part; selection is appropriate only for applications where reduced brightness is acceptable. Height specification is 5.90mm, within tolerance. Product status is Active.

WP710A10SGD5V (Similar - Kingbright): This variant operates at 5V forward voltage with 11.5mA test current, representing a fundamentally different electrical operating point. Millicandela rating is 25mcd. Selection is restricted to applications specifically designed for 5V LED operation and where lower brightness is acceptable. Product status is Active.

Frequently Asked Questions (FAQ)

Q: Can SLI-343MG3F be used as a direct replacement for SLI-343M8G3F?

A: SLI-343MG3F meets all mandatory mechanical and electrical parameters within specified tolerances. However, product status is listed as Not For New Designs. Use is appropriate for replacement applications or designs already committed to this component. For new designs, SLI-343M8G3F (Active status) is the preferred selection.

Q: What is the brightness difference between the main part and WP710A10SGD?

A: SLI-343M8G3F operates at 150mcd while WP710A10SGD operates at 40mcd. This 110mcd difference represents a significant reduction in light output. Selection of WP710A10SGD is appropriate only when application requirements permit lower brightness levels.

Q: Can WP710A10SGD5V be used in a circuit designed for 2.2V operation?

A: No. WP710A10SGD5V is specified for 5V forward voltage operation. Direct substitution into a 2.2V circuit will result in incorrect LED operation or component failure. This part is suitable only for applications specifically designed for 5V LED operation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, matching the compliance status of the main part SLI-343M8G3F.

Q: What is the mechanical compatibility of Kingbright parts with Rohm parts?

A: All parts share identical T-1 radial package specifications with Round Domed Top lens style and 40° viewing angle. Lens size tolerance is ±0.1mm (Rohm 3.10mm vs. Kingbright 3mm). Height tolerance is ±0.3mm (Rohm 5.60mm vs. Kingbright 5.90mm). These dimensional variations are within standard PCB footprint tolerances for through-hole radial components.

Q: Which substitute part is recommended for new designs?

A: For new designs requiring Active product status and closest electrical/optical match to SLI-343M8G3F, WP710A10SGD from Kingbright is the appropriate selection, provided application brightness requirements accommodate the 40mcd specification. Verify brightness adequacy in target application before design commitment.