QLR343BC4TT32XM LED Indication SMD Equivalent & Substitute Parts

Part Overview

The QLR343BC4TT32XM is a discrete LED indication component manufactured by Rohm Semiconductor, classified as an SMD (Surface Mount Device) LED indicator. This part is currently listed as obsolete, which necessitates identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

QLR343BC4TT32XM

Rohm SemiconductorIn Stock: 955QLR343BC4TT32XM Datasheet

Current PartRFQ

QLR343BN4TT32

Rohm SemiconductorIn Stock: 743QLR343BN4TT32 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the QLR343BC4TT32XM is determined by the following critical parameters:

Functional Equivalence Criteria:

• Identical product category: LED Indication - Discrete
• Identical package type: SMD
• Identical manufacturer: Rohm Semiconductor
• Matching regulatory compliance: ROHS3 Compliant
• Matching trade classification: ECCN EAR99 and HTSUS 8541.41.0000

The substitute part QLR343BN4TT32 meets all functional and regulatory requirements for direct substitution. The primary distinction is the product status transition from obsolete to active, ensuring long-term component availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: QLR343BN4TT32

The QLR343BN4TT32 is the direct functional equivalent for the obsolete QLR343BC4TT32XM. Selection of this substitute is based on the following engineering criteria:

1. Regulatory Compliance: Both parts maintain ROHS3 compliance and identical trade classifications (ECCN EAR99, HTSUS 8541.41.0000), ensuring no regulatory barriers to substitution.

2. Product Status: The substitute part maintains active production status, eliminating obsolescence risk and ensuring sustained component availability for current and future production cycles.

3. Functional Classification: Both components are classified identically as discrete LED indication devices in SMD packaging, confirming functional interchangeability within the same application context.

4. Environmental Specifications: The substitute part provides documented Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) and REACH compliance status, offering enhanced traceability and environmental documentation compared to the main part.

Frequently Asked Questions (FAQ)

Q: Can QLR343BN4TT32 be used as a direct replacement for QLR343BC4TT32XM?

A: Yes. Both components are discrete LED indication devices in SMD packaging manufactured by Rohm Semiconductor with identical regulatory compliance profiles (ROHS3, EAR99, HTSUS 8541.41.0000). The substitute part is functionally equivalent and maintains active production status.

Q: What is the primary reason for substitution?

A: The QLR343BC4TT32XM is classified as obsolete. The QLR343BN4TT32 substitute maintains active product status, ensuring ongoing availability and eliminating supply chain discontinuity.

Q: Are there packaging differences between these parts?

A: No. Both components utilize identical SMD packaging specifications. No physical or mechanical modifications are required for substitution.

Q: What is the significance of the MSL rating on the substitute part?

A: The MSL 1 (Unlimited) rating on QLR343BN4TT32 indicates unlimited shelf life under standard storage conditions. This specification provides enhanced handling and storage flexibility compared to higher MSL ratings.

Q: Do both parts comply with environmental regulations?

A: Yes. Both the main part and substitute are ROHS3 compliant. The substitute additionally documents REACH Unaffected status, providing comprehensive environmental compliance verification.

Q: Are there inventory considerations for component selection?

A: Current inventory levels show 896 units of the main part and 680 units of the substitute part in stock. Both quantities support production requirements; however, the substitute's active status ensures continued replenishment capability.