NTM-390 LED Standoff Equivalent & Substitute Parts

Part Overview

The NTM-390 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.390" (9.91mm) length. This component is constructed from black nylon material and is classified as an active product with ROHS3 compliance. LED standoffs serve as mechanical spacers and alignment components in electronic assemblies, positioning light-emitting diodes at precise heights and angles relative to circuit boards and enclosures. Substitute parts are identified when equivalent functional performance can be achieved through alternative manufacturers while maintaining critical electrical and mechanical parameters within acceptable tolerances.

Substiute Parts

NTM-390

Bivar Inc.In Stock: 1169NTM-390 Datasheet

Current PartRFQ

705820095

Würth ElektronikIn Stock: 1660705820095 Datasheet

Parametric EquivalentRFQ

705820100

Würth ElektronikIn Stock: 6192705820100 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NTM-390 are qualified based on the following critical parameters:

Primary Compatibility Criteria:

• LED Type: Must support T1 and T1 3/4 LED packages
• Material: Must be nylon construction
• Color: Must be black
• RoHS Status: Must maintain ROHS3 compliance
• Product Status: Must be active

Secondary Consideration:

• Length tolerance: Substitute parts with lengths within ±0.020" (±0.51mm) of the primary part are classified as parametric equivalents, as this tolerance range accommodates standard mechanical assembly practices for LED standoff applications.

The identified substitute parts (705820095 and 705820100) meet all primary compatibility criteria. Both are manufactured by Würth Elektronik, constructed from nylon material, support T1/T1 3/4 LED packages, are black in color, and maintain ROHS3 compliance with active product status.

Parameter Comparison

Engineering Selection Recommendations

NTM-390 (Primary Part): The NTM-390 remains the specified component when exact 0.390" (9.91mm) length is required. This part maintains active product status with confirmed inventory availability and full ROHS3 compliance.

705820100 (Würth Elektronik): This substitute part provides the closest length match at 0.394" (10.00mm), representing a +0.004" (+0.10mm) variance from the primary part. This part is constructed from Nylon 66 with UL94 V-2 rating, maintains ROHS3 compliance, and demonstrates the highest inventory availability at 6138 pieces. This substitute is suitable for applications where the minimal length increase does not impact mechanical assembly constraints.

705820095 (Würth Elektronik): This substitute part has a length of 0.374" (9.50mm), representing a -0.016" (-0.41mm) variance from the primary part. This part is constructed from Nylon 66 with UL94 V-2 rating and maintains ROHS3 compliance. This substitute is suitable for applications where the reduced length accommodates mechanical assembly requirements or space constraints.

All substitute parts maintain active product status and regulatory compliance. Selection between alternatives depends on specific mechanical assembly requirements and length tolerance specifications of the end application.

Frequently Asked Questions (FAQ)

Q: What determines if a part can substitute for the NTM-390?

A: Substitute parts must match the following parameters: T1/T1 3/4 LED type compatibility, nylon material construction, black color, and ROHS3 compliance. Length variations within standard mechanical tolerances are acceptable for LED standoff applications.

Q: How do the length differences between NTM-390 and the substitute parts affect compatibility?

A: The NTM-390 specifies 0.390" (9.91mm) length. The 705820100 substitute is 0.004" longer (0.394"), while the 705820095 substitute is 0.016" shorter (0.374"). These variations fall within acceptable mechanical assembly tolerances for LED standoff positioning. Selection depends on whether the application requires the exact original length or can accommodate the dimensional variance.

Q: Are all substitute parts RoHS compliant?

A: Yes. The NTM-390 and both substitute parts (705820095 and 705820100) are ROHS3 compliant, meeting current regulatory requirements for restricted substances in electrical and electronic equipment.

Q: What is the difference between Nylon and Nylon 66 material specifications?

A: Both materials are nylon-based polymers suitable for LED standoff applications. Nylon 66 used in the Würth Elektronik substitutes includes UL94 V-2 flame rating certification, indicating enhanced fire-resistance properties. Both materials provide equivalent electrical insulation and mechanical performance for standard LED standoff applications.

Q: Which substitute part should be selected if inventory availability is a concern?

A: The 705820100 substitute offers the highest inventory availability at 6138 pieces, compared to 1578 pieces for 705820095 and 1140 pieces for the primary NTM-390 part. This substitute also provides the closest length match to the original specification.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability depends on the mechanical assembly design and length tolerance specifications. The 705820100 substitute with +0.004" length variance is suitable for most applications. The 705820095 substitute with -0.016" length variance requires confirmation that reduced standoff height does not impact the mechanical design or LED positioning requirements.