NTM-170 LED Standoff Equivalent & Substitute Parts

Part Overview

The NTM-170 is an active LED standoff component manufactured by Bivar Inc., designed for T1 and T1 3/4 LED applications. This vertical mount standoff features a 0.170" (4.32mm) length and is constructed from black nylon material. The component is supplied in bag packaging with 1050 pieces currently in stock as new original inventory.

LED standoffs serve as mechanical and electrical positioning elements in circuit assemblies. Equivalent and substitute parts become necessary when primary inventory is depleted, when supply chain disruptions occur, or when design flexibility permits component sourcing from alternative manufacturers while maintaining functional compatibility.

Substiute Parts

NTM-170

Bivar Inc.In Stock: 1106NTM-170 Datasheet

Current PartRFQ

705820045

Würth ElektronikIn Stock: 6908705820045 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NTM-170 is determined by strict alignment of the following parameters:

Critical Parameters (Must Match Exactly):

• LED Type: T1, T1 3/4
• Material: Nylon
• Color: Black
• Mounting Style: Vertical
• RoHS Compliance: ROHS3 Compliant

Allowable Tolerance Parameter:

• Length: 0.170" (4.32mm) nominal, with mechanical tolerance permitted within standard manufacturing specifications for nylon standoffs

The substitute part 705820045 from Würth Elektronik satisfies all critical parameters. The length specification of 0.177" (4.50mm) represents a 0.007" (0.18mm) variance from the main part, which falls within acceptable mechanical tolerance for vertical LED standoff applications where precise height matching is not a design-critical constraint.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: NTM-170 The NTM-170 remains the specified component for new designs and applications where the exact 0.170" (4.32mm) length is a design requirement. Current inventory of 1050 pieces supports immediate procurement. Active product status confirms ongoing manufacturer support and availability.

Substitute Part: 705820045 The Würth Elektronik 705820045 is qualified as a direct substitute when NTM-170 inventory is unavailable or when supply chain conditions necessitate alternative sourcing. Both components carry identical RoHS3 compliance certification and EAR99 export classification, ensuring regulatory equivalence. The 0.007" (0.18mm) length differential is acceptable in applications where LED standoff height does not impose critical assembly constraints.

Both parts are classified as Active products, confirming current manufacturer production and technical support availability.

Frequently Asked Questions (FAQ)

Q: What determines if 705820045 can replace NTM-170 in my assembly?

A: Substitution is valid when the following conditions are met: (1) Your application uses T1 or T1 3/4 LED form factors; (2) Black nylon material is acceptable; (3) Vertical mounting orientation is required; (4) The 0.007" (0.18mm) length difference does not violate PCB assembly height constraints or mechanical fit requirements; (5) RoHS3 compliance is required for your end application.

Q: Are there any compliance differences between these parts?

A: No. Both NTM-170 and 705820045 are ROHS3 compliant, carry EAR99 export classification, and share identical HTSUS commodity codes (3926.90.9985). They are functionally equivalent from a regulatory standpoint.

Q: What is the significance of the length difference (0.170" vs. 0.177")?

A: The 0.007" (0.18mm) variance represents a 4.1% increase in standoff height. This difference is within standard manufacturing tolerances for nylon injection-molded components. Verify that your PCB assembly design accommodates this variance, particularly if LED height is constrained by enclosure dimensions or optical alignment requirements.

Q: Can I use 705820045 in existing designs without modification?

A: Yes, provided that the mechanical tolerance for standoff height has not been specified as a critical design parameter. If your design documentation specifies exact height matching or if LED positioning is optically critical, conduct a mechanical fit verification before production implementation.

Q: What is the inventory status for substitution planning?

A: NTM-170 inventory is 1050 pieces. Würth Elektronik 705820045 inventory is 6850 pieces. The substitute part offers significantly higher availability for extended production runs or urgent procurement scenarios.

Q: Are the nylon materials equivalent?

A: NTM-170 uses nylon material; 705820045 specifies Nylon 66 with UL94 V-2 rating. Nylon 66 is a standard engineering-grade nylon variant with enhanced thermal and mechanical properties. Both materials are suitable for LED standoff applications and provide equivalent electrical insulation characteristics.