LTM-310 LED Standoff Equivalent & Substitute Parts

Part Overview

The LTM-310 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., constructed from crystalline polymer material in black color with a 0.310" (7.87mm) length. This component is classified as Active product status and is ROHS3 compliant. LED standoffs serve as mechanical supports and alignment fixtures for through-hole LED assemblies in electronic equipment. Substitute parts are identified when equivalent functional performance can be achieved through alternative manufacturers while maintaining compatibility with the same LED form factors and mechanical envelope constraints.

Key Parameters

Parameter	Value	Criticality for Substitution
LED Form Factor	T1, T1 3/4	Critical - Must match exactly
Color	Black	Critical - Visual and thermal properties
Length	0.310" (7.87mm)	Critical - PCB standoff height
Material	Crystalline Polymer	Important - Mechanical and thermal characteristics
RoHS Status	ROHS3 Compliant	Critical - Regulatory requirement
Packaging	Bag	Operational - Handling and storage

Substitute Part Grouping Explanation

Substitute parts for the LTM-310 are identified based on strict parametric equivalence within the following allowed criteria:

Primary Matching Criteria:

LED form factor compatibility (T1, T1 3/4)
Color match (Black)
Length tolerance within mechanical assembly constraints
RoHS3 compliance status
Active product status

Substitution Logic: The LTM-310 (0.310" length, crystalline polymer) has two identified parametric equivalents from Würth Elektronik manufactured in nylon material. Both substitute parts maintain the same LED form factor and color specification. Length variations of ±0.015" to ±0.005" from the nominal dimension are within acceptable mechanical tolerances for LED standoff applications where precise height control is not the primary design driver. Both substitute parts maintain ROHS3 compliance and active product availability.

Parameter Comparison

Parameter	LTM-310 (Main)	705820075 (Substitute)	705820080 (Substitute)
Manufacturer	Bivar Inc.	Würth Elektronik	Würth Elektronik
LED Form Factor	T1, T1 3/4	T1, T1 3/4	T1, T1 3/4
Color	Black	Black	Black
Length	0.310" (7.87mm)	0.295" (7.50mm)	0.315" (8.00mm)
Material	Crystalline Polymer	Nylon	Nylon
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Packaging	Bag	Bag	Bag
Inventory Availability	1171 Pcs	2608 Pcs	17403 Pcs

Engineering Selection Recommendations

705820075 Selection Criteria: Part 705820075 operates at 0.295" (7.50mm) length, representing a 0.015" reduction from the LTM-310 nominal dimension. This substitute is appropriate for applications where reduced standoff height is acceptable or beneficial for PCB layout optimization. Würth Elektronik nylon material provides equivalent mechanical support for T1/T1 3/4 LED assemblies. ROHS3 compliance and active product status confirm regulatory alignment and supply chain continuity.

705820080 Selection Criteria: Part 705820080 operates at 0.315" (8.00mm) length, representing a 0.005" increase from the LTM-310 nominal dimension. This substitute provides the closest dimensional match to the original specification. Würth Elektronik nylon material maintains mechanical performance requirements. ROHS3 compliance and active product status with highest inventory availability (17403 Pcs) support long-term supply security.

Material Consideration: Both substitutes employ nylon material in place of the original crystalline polymer. Nylon 66 UL94 V-2 formulation provides equivalent mechanical rigidity and thermal stability for LED standoff applications. Material substitution does not compromise functional performance within standard LED assembly operating parameters.

Frequently Asked Questions (FAQ)

Q: Can 705820075 or 705820080 be used as direct replacements for LTM-310 in existing PCB designs?

A: Both parts maintain T1/T1 3/4 LED form factor compatibility and black color specification. Length variations (±0.015" and ±0.005" respectively) fall within acceptable mechanical tolerances for LED standoff applications. PCB layout verification is required to confirm that the specific length variation does not conflict with component placement or clearance requirements in your assembly.

Q: What is the difference between the two substitute parts?

A: Both 705820075 and 705820080 are manufactured by Würth Elektronik in nylon material with identical LED form factor and color. The primary difference is length: 705820075 measures 0.295" (7.50mm) while 705820080 measures 0.315" (8.00mm). Selection depends on whether reduced or increased standoff height is compatible with your PCB design. Part 705820080 provides closer dimensional alignment to the original LTM-310 specification.

Q: Are there material performance differences between crystalline polymer and nylon?

A: Both materials provide adequate mechanical support and thermal stability for T1/T1 3/4 LED standoff applications. Nylon 66 UL94 V-2 formulation meets flame retardancy requirements equivalent to the original crystalline polymer specification. Material selection does not impact electrical performance or LED compatibility.

Q: Do all three parts meet the same regulatory requirements?

A: Yes. LTM-310, 705820075, and 705820080 are all ROHS3 compliant. Both substitute parts maintain equivalent regulatory status for use in restricted substance applications.

Q: Which substitute part should I select for new designs?

A: Part 705820080 is recommended for new designs due to closest dimensional match to LTM-310 (0.315" vs. 0.310") and highest inventory availability (17403 Pcs), ensuring supply chain continuity. Part 705820075 is appropriate when reduced standoff height provides design advantages.

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