LTM-220 LED Standoff - Equivalent & Substitute Parts

Part Overview

The LTM-220 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., featuring a 0.220" (5.59mm) length in black crystalline polymer construction. This component is used as a mechanical support and alignment fixture for LED leads in vertical mounting applications. The product maintains Active status with full ROHS3 compliance and MSL 1 rating (unlimited moisture tolerance). Substitute parts may be required due to supply chain availability, procurement lead times, or specific application requirements for alternative material properties such as thermal performance or chemical resistance.

Substiute Parts

LTM-220

Bivar Inc.In Stock: 1200LTM-220 Datasheet

Current PartRFQ

705820055

Würth ElektronikIn Stock: 1606705820055 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTM-220 are evaluated based on the following critical parameters that determine functional interchangeability:

Length Tolerance: The primary dimension for LED standoff compatibility is 0.220" (5.59mm) for the main part. Substitute parts must maintain equivalent spacing for T1/T1 3/4 LED leads.

LED Type Compatibility: Both the main part and substitutes must accommodate T1 and T1 3/4 LED geometries without modification.

Color: Black finish maintained across all alternatives to ensure consistency in mechanical assembly appearance.

Material Property: Both crystalline polymer and nylon materials satisfy structural requirements for vertical LED standoff applications with ROHS3 compliance.

Environmental Compliance: All parts maintain ROHS3 and EAR99 export classification alignment.

The Würth Elektronik 705820055 qualifies as a parametric equivalent due to matching LED type support, color specification, length within acceptable tolerance (0.216" vs. 0.220"), and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (LTM-220): Maintain as first choice for new designs and existing production where supply is available. Active product status and established procurement channels support consistent manufacturing.

Secondary Selection (705820055): Deploy as qualified substitute when LTM-220 lead times exceed project requirements or supply allocation constraints occur. Material transition from crystalline polymer to nylon (UL94 V-2 rated) provides equivalent mechanical performance with enhanced chemical compatibility in certain process environments. ROHS3 compliance and EAR99 classification maintain regulatory alignment with the primary part.

Both parts support identical LED form factors and require no mechanical redesign at the PCB or assembly level when substituted.

Frequently Asked Questions (FAQ)

Q: Are the length dimensions interchangeable between LTM-220 and 705820055? A: The parts differ by 0.004" (0.09mm) in total length (0.220" vs. 0.216"). This tolerance is acceptable for T1/T1 3/4 LED vertical standoff applications where mechanical spacing is determined by PCB pad-to-pad distance rather than absolute standoff height. Verify final clearance in specific PCB layouts.

Q: Does the material change from crystalline polymer to nylon affect component performance? A: Both materials provide structural support for vertical LED mounting. Nylon (UL94 V-2) exhibits superior chemical resistance to certain solvents and thermal cycling stability. Crystalline polymer offers equivalent electrical insulation and mechanical rigidity for standard assembly environments. Material selection should align with post-assembly process chemistry (cleaning, potting, thermal profiles).

Q: Can these parts be used interchangeably in existing production? A: Yes, without PCB or assembly fixture modification. Both parts maintain identical LED type compatibility (T1, T1 3/4), black color, and mounting geometry. Production changeover requires inventory management but no design or tooling changes.

Q: What regulatory certifications apply to both parts? A: Both LTM-220 and 705820055 are ROHS3 compliant and classified as EAR99 for export purposes. No additional compliance documentation is required for standard commercial applications.

Q: Is moisture sensitivity a factor in selecting between these parts? A: The LTM-220 carries MSL 1 (unlimited moisture tolerance). The 705820055 lists moisture sensitivity as Not Applicable. Both parts are suitable for standard manufacturing and storage conditions without desiccant packaging or bake-out procedures.