SMR32-G LED Green Clear SMD Right Angle Equivalent & Substitute Parts

Part Overview

The SMR32-G is a discrete green LED indication component manufactured by Bivar Inc., featuring a 2.2V forward voltage rating and 14mcd brightness output. This product is classified as obsolete, necessitating the identification of functionally equivalent alternative components for ongoing applications and new designs. The substitute part identified maintains critical electrical parameters while offering enhanced availability through active production status.

Substiute Parts

SMR32-G

Bivar Inc.In Stock: 1130SMR32-G Datasheet

Current PartRFQ

SMF-2432GC-TR

Lumex Opto/Components Inc.In Stock: 2227SMF-2432GC-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SMF-2432GC-TR from Lumex Opto/Components Inc. qualifies as a functional equivalent based on the following critical parameters:

Electrical Compatibility:

• Identical forward voltage rating (2.2V)
• Matching test current specification (20mA)
• Equivalent brightness output (14mcd)
• Identical viewing angle (110°)
• Matching wavelength - peak (565nm)

Mechanical Compatibility:

• Surface mount, right angle mounting type
• Round domed top lens style
• Colorless lens with clear transparency

Allowed Variations:

• Package configuration change from 2-SMD to 3-SMD
• Lens diameter increase from 0.80mm to 1.60mm
• Overall dimensions adjustment to 3.20mm L x 3.10mm W
• Height increase from 2.00mm to 2.40mm
• Moisture sensitivity level reduction from 4 to 3

Parameter Comparison

Engineering Selection Recommendations

The SMF-2432GC-TR provides direct electrical compatibility with the obsolete SMR32-G across all critical performance parameters. The substitute component offers improved regulatory compliance through ROHS3 certification and REACH unaffected status, with the SMR32-G compliance information not specified in available documentation.

The transition from 2-SMD to 3-SMD package configuration and increased component footprint dimensions require PCB layout evaluation. The improved moisture sensitivity level (MSL 3) provides superior performance characteristics compared to the original MSL 4 rating.

Current active production status of the SMF-2432GC-TR ensures sustained availability for component procurement, addressing the supply constraints associated with the obsolete SMR32-G.

Frequently Asked Questions (FAQ)

Q: Are the electrical specifications identical between SMR32-G and SMF-2432GC-TR?

A: All electrical parameters match exactly: forward voltage (2.2V), test current (20mA), brightness output (14mcd), viewing angle (110°), and peak wavelength (565nm). These components are electrically interchangeable.

Q: What physical differences exist between these components?

A: The SMF-2432GC-TR features a larger footprint (3.20mm L x 3.10mm W versus 3.00mm L x 1.00mm W) and greater height (2.40mm versus 2.00mm). The SMF-2432GC-TR uses a 3-SMD package configuration compared to the 2-SMD configuration of the SMR32-G. Lens diameter increases from 0.80mm to 1.60mm.

Q: Will PCB design modifications be required for substitution?

A: Yes. The dimensional changes and package configuration shift necessitate PCB layout redesign to accommodate the larger footprint and modified pad configuration of the SMF-2432GC-TR.

Q: What is the impact of the moisture sensitivity level change?

A: The SMF-2432GC-TR carries an MSL rating of 3 (168 hours) compared to MSL 4 (72 hours) for the SMR32-G. This represents improved moisture resistance characteristics and relaxed handling requirements during manufacturing and assembly.

Q: Are there regulatory compliance advantages to selecting the substitute part?

A: The SMF-2432GC-TR provides documented ROHS3 compliance and REACH unaffected status. Equivalent compliance documentation is not provided for the obsolete SMR32-G.