LTM-290 Equivalent & Substitute Parts

Part Overview

The LTM-290 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., constructed from black crystalline polymer with a 0.290" (7.37mm) 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. Substitute parts are identified when equivalent mechanical and electrical parameters are met, enabling component interchangeability in applications where the original part becomes unavailable or inventory constraints require alternative sourcing.

Substiute Parts

LTM-290

Bivar Inc.In Stock: 938LTM-290 Datasheet

Current PartRFQ

705820075

Würth ElektronikIn Stock: 2673705820075 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTM-290 are identified based on strict parameter alignment within the following criteria:

Critical Matching Parameters:

• LED Type: T1 or T1 3/4 form factor
• Length: 0.290" ± tolerance (7.37mm nominal)
• Color: Black
• RoHS3 Compliance: Required
• ECCN Classification: EAR99

Allowable Variations:

• Material composition (crystalline polymer, nylon, or equivalent engineering polymers) provided mechanical and thermal performance remain within application requirements
• Moisture Sensitivity Level variations are acceptable when the substitute part meets or exceeds environmental durability specifications

The substitute part 705820075 (Würth Elektronik) qualifies as a parametric equivalent based on matching LED type, color specification, RoHS3 compliance, and ECCN classification. Length variance of 0.005" (0.13mm) falls within standard mechanical tolerances for LED standoff applications.

Parameter Comparison

Engineering Selection Recommendations

LTM-290 (Bivar Inc.): Select this part when crystalline polymer material properties are specifically required for the application. The part is actively manufactured with established supply chain availability (916 pcs in stock). RoHS3 compliance and EAR99 classification support standard commercial and export applications.

705820075 (Würth Elektronik): This substitute part is suitable for applications where nylon-based standoff construction is acceptable. The UL94 V-2 flame rating provides enhanced fire resistance compared to standard crystalline polymer. Higher inventory availability (2608 pcs) supports rapid procurement. RoHS3 compliance and EAR99 classification maintain regulatory alignment with the primary part.

Selection Basis: Both parts maintain Active product status and full regulatory compliance. The 0.005" (0.13mm) length difference is within standard mechanical tolerances for LED standoff applications and does not affect form factor compatibility with T1/T1 3/4 LEDs. Material substitution from crystalline polymer to nylon is acceptable provided the application does not require specific thermal or chemical resistance properties unique to crystalline polymer.

Frequently Asked Questions (FAQ)

Q: Can 705820075 be used as a direct replacement for LTM-290 in all applications?

A: Yes, within standard mechanical tolerance ranges. The 0.005" (0.13mm) length variance is acceptable for LED standoff applications. Both parts support T1/T1 3/4 LED form factors and maintain identical RoHS3 and EAR99 compliance. Material composition differs (nylon vs. crystalline polymer), but both are engineering-grade polymers suitable for LED mounting applications.

Q: What is the significance of the length difference between these parts?

A: The LTM-290 measures 0.290" (7.37mm) while the 705820075 measures 0.295" (7.50mm). This 0.005" (0.13mm) difference is within standard manufacturing tolerances for LED standoff components and does not affect mechanical fit or electrical performance in typical PCB mounting applications.

Q: Are there any environmental or storage differences between these parts?

A: The LTM-290 specifies Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. The 705820075 lists MSL as Not Applicable, indicating the nylon material does not absorb moisture under standard storage conditions. Both parts are suitable for standard industrial storage environments.

Q: Does the UL94 V-2 rating on the 705820075 provide additional benefits?

A: The UL94 V-2 flame rating on the Würth Elektronik part indicates enhanced fire resistance properties. This certification is beneficial for applications requiring higher flame retardancy standards but is not required for standard LED standoff applications where the LTM-290 crystalline polymer is sufficient.

Q: What is the HTSUS classification and why is it identical for both parts?

A: Both parts share HTSUS code 3926.90.9985, which classifies them as articles of plastics not otherwise specified. This identical classification confirms they are functionally equivalent components from a trade and tariff perspective.

Q: Can I mix LTM-290 and 705820075 parts in the same assembly?

A: Yes. Both parts are mechanically and electrically compatible with T1/T1 3/4 LEDs and maintain identical regulatory compliance. Mixing is acceptable provided the application does not require material-specific properties (thermal conductivity, chemical resistance, or specific flame rating).