SLH-34VR3FQ Equivalent & Substitute Parts

Part Overview

The SLH-34VR3FQ is a red diffused LED indicator manufactured by Rohm Semiconductor, classified as an LED Indication discrete component in T-1 through-hole package format. This part is designated as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The obsolete status requires engineers to evaluate active substitute components that maintain electrical and mechanical compatibility with existing circuit designs.

Substiute Parts

SLH-34VR3FQ

Rohm SemiconductorIn Stock: 739SLH-34VR3FQ Datasheet

Current PartRFQ

LTL-4211N

Lite-On Inc.In Stock: 28039LTL-4211N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The LTL-4211N from Lite-On Inc. qualifies as a substitute for the SLH-34VR3FQ based on the following alignment of critical parameters:

Matching Electrical Characteristics:

• Red LED color specification
• Diffused lens transparency
• T-1 form factor (3mm diameter)
• Through-hole radial mounting configuration

Matching Compliance & Environmental Standards:

• ROHS3 Compliant certification
• Moisture Sensitivity Level 1 (Unlimited)
• ECCN EAR99 classification
• HTSUS code 8541.41.0000

Active Product Status: The LTL-4211N maintains active product status with substantial inventory availability (28,025 units), ensuring long-term procurement viability and design continuity for applications previously utilizing the obsolete SLH-34VR3FQ.

Parameter Comparison

Engineering Selection Recommendations

The LTL-4211N is the qualified substitute for the SLH-34VR3FQ based on functional equivalence in form factor, color specification, and mounting configuration. Both components maintain identical RoHS3 compliance status and moisture sensitivity classification, ensuring regulatory and environmental compatibility.

The transition from the obsolete SLH-34VR3FQ to the active LTL-4211N eliminates supply chain risk while maintaining mechanical and electrical interface compatibility. The LTL-4211N's active product status and substantial inventory position provide design continuity and procurement stability for new production runs and legacy system support.

Both components share identical ECCN and HTSUS classifications, confirming trade compliance equivalence for international distribution and procurement operations.

Frequently Asked Questions (FAQ)

Q: Can the LTL-4211N directly replace the SLH-34VR3FQ in existing circuit designs?

A: Yes. Both components share identical T-1 through-hole radial package configuration, red diffused lens specification, and electrical interface requirements. No circuit modifications are required for substitution.

Q: Are there compliance differences between these components?

A: No. Both the SLH-34VR3FQ and LTL-4211N maintain ROHS3 compliance, identical moisture sensitivity classification, and matching ECCN/HTSUS codes. Regulatory and environmental standards are equivalent.

Q: What is the primary reason for substitution?

A: The SLH-34VR3FQ is designated as obsolete. The LTL-4211N provides functional equivalence with active product status, ensuring long-term availability and procurement continuity.

Q: Are the mechanical dimensions compatible?

A: Yes. Both components utilize the T-1 form factor (3mm diameter) with through-hole radial mounting. The LTL-4211N maximum height of 5.85mm is consistent with standard T-1 LED specifications.

Q: What electrical parameters should be verified during design transition?

A: The LTL-4211N operates at 2.1V forward voltage with 10mA test current and 657nm dominant wavelength. These parameters should be confirmed against the original circuit design specifications for the SLH-34VR3FQ.

Q: Is inventory availability a consideration for this substitution?

A: Yes. The LTL-4211N maintains 28,025 units in stock, providing substantial procurement availability compared to the obsolete SLH-34VR3FQ status.