SLH-34VR3FR Equivalent & Substitute Parts

Part Overview

The SLH-34VR3FR is a red diffused T-1 through-hole LED manufactured by Rohm Semiconductor, classified as an LED indication discrete component. This part is designated as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. The obsolete status requires engineers to evaluate active substitute components that maintain electrical and mechanical compatibility with existing circuit designs and board layouts.

Substiute Parts

SLH-34VR3FR

Rohm SemiconductorIn Stock: 1164SLH-34VR3FR 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 direct substitute for the SLH-34VR3FR based on the following alignment of critical parameters:

Functional Equivalence Criteria:

• Both components are red diffused T-1 through-hole LEDs
• Both serve LED indication discrete applications
• Both utilize radial mounting configuration
• Both are classified under HTSUS code 8541.41.0000

Compliance Alignment:

• Both maintain ROHS3 compliance
• Both carry MSL rating of 1 (Unlimited)
• Both are classified as EAR99 for export control purposes

Mechanical Compatibility:

• T-1 package form factor ensures physical interchangeability
• Through-hole radial lead configuration matches board layout requirements
• Diffused lens type maintains optical characteristics

The substitution is valid for applications requiring red LED indication functionality with through-hole mounting in ROHS3-compliant assemblies.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: LTL-4211N

The LTL-4211N is the designated substitute for the obsolete SLH-34VR3FR. Selection of this component is based on the following engineering factors:

Product Status Consideration: The LTL-4211N maintains active product status with Lite-On Inc., ensuring ongoing availability and supply chain continuity. This addresses the critical limitation of the SLH-34VR3FR's obsolete designation.

Compliance Verification: Both components maintain ROHS3 compliance and carry identical MSL ratings of 1 (Unlimited), confirming suitability for equivalent manufacturing and assembly processes. The EAR99 export classification remains consistent between both parts.

Mechanical Interchangeability: The T-1 through-hole radial package configuration of the LTL-4211N ensures direct physical compatibility with existing PCB layouts designed for the SLH-34VR3FR. No board redesign or mechanical rework is required.

Functional Alignment: Both components serve identical LED indication discrete applications with red diffused lens characteristics. The LTL-4211N provides specified electrical parameters (2.1V forward voltage, 10mA test current, 657nm dominant wavelength) consistent with standard red LED indication requirements.

REACH Compliance Note: The LTL-4211N carries REACH Affected status, whereas the SLH-34VR3FR is REACH Unaffected. Organizations subject to REACH regulations must confirm compliance requirements with their regulatory and procurement departments prior to component selection.

Frequently Asked Questions (FAQ)

Q: Can the LTL-4211N directly replace the SLH-34VR3FR without circuit modification?

A: Yes. Both components are T-1 through-hole red diffused LEDs with radial lead configuration. The LTL-4211N is mechanically and functionally compatible with circuit designs specified for the SLH-34VR3FR. No circuit redesign is required for substitution.

Q: What is the primary reason for substituting the SLH-34VR3FR?

A: The SLH-34VR3FR is designated as obsolete by Rohm Semiconductor. The LTL-4211N is an active product from Lite-On Inc., providing assured long-term availability and supply chain stability.

Q: Are there differences in electrical performance between these components?

A: The SLH-34VR3FR specifications do not include detailed electrical parameters in the provided documentation. The LTL-4211N specifies 2.1V forward voltage at 10mA test current and 657nm dominant wavelength, which are standard parameters for red T-1 LED indication applications.

Q: Do both components meet the same compliance standards?

A: Both components are ROHS3 compliant with MSL rating of 1 (Unlimited) and EAR99 export classification. The LTL-4211N carries REACH Affected status, while the SLH-34VR3FR is REACH Unaffected. Organizations operating under REACH regulations must evaluate this distinction.

Q: What is the physical form factor of the LTL-4211N?

A: The LTL-4211N is a T-1 through-hole LED with radial lead configuration. Maximum height is 5.85mm with 3mm lens diameter. This form factor is standard for T-1 package LEDs and maintains compatibility with existing PCB designs.

Q: Is the LTL-4211N available in the same packaging as the SLH-34VR3FR?

A: The LTL-4211N is supplied in bulk packaging. Both components utilize identical T-1 through-hole radial package form factors, ensuring mechanical interchangeability regardless of supplier packaging configuration.

Q: What inventory status should be considered for procurement planning?

A: The SLH-34VR3FR has 1091 pieces in stock but is obsolete. The LTL-4211N has 28025 pieces in stock and maintains active product status, providing superior long-term supply assurance for ongoing production requirements.