NTM-490 LED Standoff Equivalent & Substitute Parts

Part Overview

The NTM-490 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., constructed from black nylon with a length of 0.490" (12.45mm). This component is designed to provide mechanical support and vertical positioning for LED assemblies in electronic applications. The part maintains Active product status and is RoHS3 compliant. Substitute parts become necessary when primary inventory is unavailable, when supply chain optimization is required, or when design flexibility permits alternative mechanical dimensions within acceptable tolerances.

Substiute Parts

NTM-490

Bivar Inc.In Stock: 749NTM-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 NTM-490 are qualified based on the following critical parameters:

Mandatory Matching Parameters:

• LED Type: T1, T1 3/4 (mechanical compatibility with LED form factor)
• Material: Nylon (chemical and thermal properties)
• Color: Black (visual and application consistency)
• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Packaging: Bag (supply chain handling)

Allowable Variation Parameter:

• Length: ±0.022" (±0.55mm) tolerance range from the primary part specification

All substitute parts listed are manufactured by Würth Elektronik and maintain Active product status with full RoHS3 compliance. The length variations among substitutes (0.472", 0.492", 0.512") fall within acceptable mechanical tolerances for LED standoff applications where precise vertical positioning accommodates standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

705820120 (Würth Elektronik): This substitute provides the shortest length at 0.472" (12.00mm), representing a 0.018" (0.45mm) reduction from the primary part. This part is suitable for applications where reduced vertical standoff height is acceptable or beneficial for compact PCB layouts. Full RoHS3 compliance and Active product status confirm regulatory and supply continuity.

705820125 (Würth Elektronik): This substitute provides a length of 0.492" (12.50mm), representing a 0.002" (0.05mm) increase from the primary part. This part offers the closest dimensional match to the NTM-490 and is the preferred substitute when mechanical interchangeability is prioritized. Full RoHS3 compliance and Active product status are confirmed.

705820130 (Würth Elektronik): This substitute provides the longest length at 0.512" (13.00mm), representing a 0.022" (0.55mm) increase from the primary part. This part is suitable for applications requiring increased vertical standoff height or where additional clearance above the PCB surface is necessary. Full RoHS3 compliance and Active product status are confirmed.

All substitute parts carry REACH Unaffected status, indicating no additional regulatory burden for European supply chains.

Frequently Asked Questions (FAQ)

Q: Can the 705820120 substitute for the NTM-490 in all applications?

A: The 705820120 is mechanically compatible with T1/T1 3/4 LED assemblies and maintains identical material, color, and regulatory compliance. The 0.018" length reduction is suitable for applications where reduced vertical height does not compromise circuit design or component clearance requirements. Design verification is necessary only if the application specifies exact standoff height as a critical dimension.

Q: What is the primary difference between the three Würth substitutes?

A: The three Würth Elektronik substitutes differ only in length specification: 705820120 at 0.472", 705820125 at 0.492", and 705820130 at 0.512". All other parameters—LED type, material composition, color, regulatory compliance, and packaging—are identical. Length selection depends on the required vertical positioning in the specific PCB assembly.

Q: Are all substitutes RoHS3 compliant?

A: Yes. The NTM-490 and all three substitute parts (705820120, 705820125, 705820130) are RoHS3 compliant. This compliance status is maintained across all alternatives, ensuring regulatory consistency in procurement and assembly operations.

Q: Can substitutes be mixed within a single assembly?

A: All substitutes are mechanically and electrically equivalent for T1/T1 3/4 LED standoff applications. However, mixing different length specifications within a single PCB assembly may result in inconsistent LED vertical positioning. Design documentation should specify which substitute length is appropriate for the intended application.

Q: What is the significance of Nylon 66 material specification in the Würth parts?

A: Nylon 66 is a specific formulation of nylon material with defined thermal and mechanical properties. The Würth substitutes specify Nylon 66 with UL94 V-2 flame rating, confirming material grade and safety certification. This specification is functionally equivalent to the nylon material in the NTM-490 for LED standoff applications.

Q: Are there inventory considerations when selecting substitutes?

A: Current inventory levels are: NTM-490 (683 pcs), 705820120 (3498 pcs), 705820125 (3195 pcs), and 705820130 (3297 pcs). All parts are in stock. Substitute selection may be influenced by supply availability and lead time requirements, though all alternatives currently maintain adequate inventory levels.