LTM-490 Equivalent & Substitute Parts

Part Overview

The LTM-490 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., constructed from crystalline polymer material in black color with a 0.490" (12.45mm) length. This component is designed for vertical mounting applications requiring precision LED alignment and mechanical support. The part maintains Active product status and is ROHS3 compliant with MSL 1 rating, indicating unlimited moisture sensitivity tolerance. Substitute parts are identified when equivalent functional performance is required due to inventory constraints, supply chain considerations, or design flexibility within specified mechanical and electrical parameters.

Substiute Parts

LTM-490

Bivar Inc.In Stock: 1082LTM-490 Datasheet

Current PartRFQ

705820120

Würth ElektronikIn Stock: 3511705820120 Datasheet

Parametric EquivalentRFQ

705820125

Würth ElektronikIn Stock: 3206705820125 Datasheet

Parametric EquivalentRFQ

705820130

Würth ElektronikIn Stock: 3392705820130 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTM-490 are qualified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• LED Type: T1, T1 3/4 (identical across all substitutes)
• Color: Black (identical across all substitutes)
• RoHS Compliance: ROHS3 Compliant (maintained across all substitutes)
• Packaging: Bag (consistent format)
• Product Status: Active (all substitutes maintain active status)

Secondary Consideration:

• Length Tolerance: Substitute parts range from 0.472" to 0.512" (12.00mm to 13.00mm), representing a ±0.022" (±0.55mm) variance from the main part specification of 0.490" (12.45mm)

Material Variation:

• Main part uses Crystalline Polymer; substitute parts use Nylon 66 (UL94 V-2 rated)
• Both materials are thermoplastic polymers suitable for LED standoff applications

All substitute parts are manufactured by Würth Elektronik and maintain equivalent mechanical and electrical performance within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

705820125 (Closest Match): This substitute provides the most precise dimensional alignment with the LTM-490, offering a length of 0.492" (12.50mm) compared to the main part's 0.490" (12.45mm), representing a variance of only +0.002" (+0.05mm). All compliance certifications are maintained, including ROHS3 compliance and EAR99 export classification. Material substitution from crystalline polymer to Nylon 66 (UL94 V-2) does not affect functional performance for LED standoff applications.

705820120 (Shorter Alternative): This part provides a length of 0.472" (12.00mm), representing a -0.018" (-0.45mm) variance from specification. Selection is appropriate when reduced standoff height is acceptable within circuit board design constraints. Full compliance certifications are maintained.

705820130 (Longer Alternative): This part provides a length of 0.512" (13.00mm), representing a +0.022" (+0.55mm) variance from specification. Selection is appropriate when increased standoff height is required for component clearance or thermal management considerations. Full compliance certifications are maintained.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between the LTM-490 and its substitutes?

A: The main difference is material composition. The LTM-490 uses crystalline polymer, while all Würth Elektronik substitutes use Nylon 66 (UL94 V-2 rated). Both materials are thermoplastic polymers suitable for LED standoff applications. Secondary differences exist in length specifications, ranging from 0.472" to 0.512".

Q: Are all substitute parts dimensionally interchangeable with the LTM-490?

A: Substitutes are functionally equivalent within specified mechanical tolerances. The 705820125 offers the closest dimensional match at 0.492" (12.50mm) versus the main part's 0.490" (12.45mm). The 705820120 and 705820130 provide alternative heights of 0.472" and 0.512" respectively, suitable for applications where height variation is acceptable.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant, carry EAR99 export classification, and share the same HTSUS code (3926.90.9985) as the LTM-490. Regulatory and trade compliance is maintained across all options.

Q: What LED types are supported by these standoffs?

A: All parts, including the main LTM-490 and all substitutes, support T1 and T1 3/4 LED types. No variation exists in LED compatibility across the product group.

Q: Is material substitution from crystalline polymer to Nylon 66 acceptable?

A: Yes. Both materials are thermoplastic polymers engineered for LED standoff applications. Nylon 66 with UL94 V-2 rating provides equivalent mechanical and thermal performance for this component category.

Q: What packaging format is used for all parts?

A: All parts are supplied in Bag packaging format, maintaining consistent handling and storage requirements.

Q: Which substitute should be selected for direct replacement?

A: The 705820125 provides the most direct replacement, with a length variance of only +0.002" from the LTM-490 specification. Selection of 705820120 or 705820130 depends on specific circuit board design requirements regarding standoff height.