LTM-480 LED Standoff Equivalent & Substitute Parts

Part Overview

The LTM-480 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., constructed from black crystalline polymer with a length of 0.480" (12.19mm). This component is currently in active product status and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Alternative equivalent parts may be required due to supply chain considerations, inventory availability, or specific application requirements where material or dimensional variations are acceptable within engineering tolerances.

Substiute Parts

LTM-480

Bivar Inc.In Stock: 1011LTM-480 Datasheet

Current PartRFQ

705820120

Würth ElektronikIn Stock: 3511705820120 Datasheet

Parametric EquivalentRFQ

705820125

Würth ElektronikIn Stock: 3206705820125 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Parametric equivalence for the LTM-480 is established through matching the following critical parameters: LED type classification (T1, T1 3/4), color specification (Black), and mechanical length within acceptable engineering tolerances. The substitute parts identified (705820120 and 705820125) both satisfy these core requirements while maintaining identical RoHS compliance and regulatory classification (ECCN EAR99, HTSUS 3926.90.9985). The primary substitution criterion is the LED standoff form factor and dimensional compatibility with T1/T1 3/4 LED packages. Material variation from crystalline polymer to nylon does not preclude functional equivalence provided the mechanical and electrical interface characteristics remain compatible. Length tolerance is the limiting parameter for direct substitution; parts must accommodate standard 0.480" nominal length with variations not exceeding ±0.020" for reliable LED positioning in typical applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts (LTM-480, 705820120, and 705820125) maintain active product status with ROHS3 compliance, ensuring regulatory compliance across designs. The LTM-480 represents the primary component specification. Part 705820125 provides the closest dimensional match at 0.492" (12.50mm), remaining within typical mounting tolerances relative to the nominal 0.480" specification. Part 705820120 at 0.472" (12.00mm) introduces a -0.008" deviation from nominal, which may require application-specific validation depending on LED package clearance requirements. Material transition from crystalline polymer to nylon is permissible from a mechanical standpoint for standard LED mounting applications, as both polymers provide equivalent form factor function and do not introduce electrical performance variations in passive standoff applications.

Frequently Asked Questions (FAQ)

Q: What are the primary criteria for substituting the LTM-480? A: The LTM-480 can be substituted with parts matching the following specifications: T1 or T1 3/4 LED type classification, black color, length within 0.472" to 0.492" (12.00mm to 12.50mm), and ROHS3 compliance. Both identified substitutes meet these parameters.

Q: Are the Würth Elektronik 705820120 and 705820125 parts truly equivalent? A: Both Würth Elektronik parts are parametric equivalents meeting LED type, color, and regulatory requirements. The distinction between them is length: 705820120 measures 0.472" (12.00mm) while 705820125 measures 0.492" (12.50mm). Selection between them depends on application-specific tolerance requirements relative to LED package positioning.

Q: Does material change from crystalline polymer to nylon affect performance? A: The material change does not impact electrical function or regulatory compliance (both materials are ROHS3 compliant). Mechanical properties remain suitable for standard LED standoff applications. Nylon exhibits slightly different thermal characteristics, which do not represent a functional limitation in passive standoff mounting.

Q: Which substitute part provides the best dimensional match? A: Part 705820125 at 0.492" (12.50mm) provides the closest dimensional alignment to the LTM-480 nominal 0.480" (12.19mm) specification, with a +0.012" tolerance. Part 705820120 at 0.472" (12.00mm) represents a -0.008" variation, requiring application validation based on specific LED package requirements.

Q: Are there MSL or moisture sensitivity differences between parts? A: The LTM-480 carries an MSL rating of 1 (Unlimited). The Würth Elektronik substitutes list MSL as Not Applicable, reflecting their different material composition. This distinction does not affect performance in standard operating environments where passive polymer standoffs do not require moisture sensitivity classification.

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