NTM-340 LED Standoff Equivalent & Substitute Parts

Part Overview

The NTM-340 is a T1/T1 3/4 LED standoff manufactured by Bivar Inc., designed for vertical mounting applications with a 0.340" (8.64mm) 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 fixtures in electronic assemblies, positioning light-emitting diodes at precise heights above printed circuit boards. Substitute parts become necessary when original inventory is unavailable, when supply chain optimization is required, or when design flexibility permits selection from qualified alternative manufacturers meeting identical electrical and mechanical specifications.

Substiute Parts

NTM-340

Bivar Inc.In Stock: 1100NTM-340 Datasheet

Current PartRFQ

705820085

Würth ElektronikIn Stock: 2009705820085 Datasheet

Parametric EquivalentRFQ

705820090

Würth ElektronikIn Stock: 4332705820090 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NTM-340 is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• LED Type: T1 or T1 3/4 configuration
• Material: Nylon construction
• Color: Black
• Packaging: Bag format
• RoHS Compliance: ROHS3 Compliant
• HTSUS Classification: 3926.90.9985

Allowable Variance:

• Length tolerance: Mechanical standoff height may vary within ±0.020" (±0.51mm) from the nominal 0.340" specification, as this dimension accommodates standard PCB assembly tolerances and LED lead positioning requirements for T1/T1 3/4 packages.

The substitute parts listed below satisfy all critical matching parameters and fall within the allowable mechanical tolerance band for direct substitution in T1/T1 3/4 LED mounting applications.

Parameter Comparison

Engineering Selection Recommendations

NTM-340 (Bivar Inc.): Select this part when original manufacturer specification is required or when inventory availability is confirmed. This component maintains active product status with established supply chain presence. Moisture Sensitivity Level 1 designation indicates no moisture-related handling restrictions during storage or assembly.

705820085 (Würth Elektronik): This substitute provides a length of 0.335" (8.50mm), representing a -0.005" (-0.14mm) variance from the nominal NTM-340 specification. This dimension falls within standard PCB assembly tolerances for T1/T1 3/4 LED positioning. Select this part when Würth Elektronik supply chain preference is established or when inventory of the primary part is depleted. ROHS3 compliance and REACH Unaffected status confirm regulatory alignment.

705820090 (Würth Elektronik): This substitute provides a length of 0.354" (9.00mm), representing a +0.014" (+0.36mm) variance from the nominal NTM-340 specification. This dimension remains within acceptable mechanical tolerance for standard T1/T1 3/4 LED assembly applications. Select this part when Würth Elektronik supply chain preference is established or when the longer standoff height accommodates specific PCB layout requirements. ROHS3 compliance and REACH Unaffected status confirm regulatory alignment.

All three parts maintain identical electrical classification (ECCN: EAR99) and tariff coding (HTSUS: 3926.90.9985), ensuring consistent regulatory treatment across supply chain alternatives.

Frequently Asked Questions (FAQ)

Q: What determines whether a part can substitute for the NTM-340?

A: Substitution eligibility requires matching LED type (T1/T1 3/4), material (nylon), color (black), packaging format (bag), and RoHS compliance level (ROHS3). Length variance up to ±0.020" is acceptable for standard T1/T1 3/4 LED mounting applications due to typical PCB assembly tolerances.

Q: Are the Würth Elektronik parts (705820085 and 705820090) interchangeable with each other?

A: Both Würth Elektronik parts meet the substitution criteria for NTM-340, but they differ in length. The 705820085 is 0.005" shorter than the NTM-340, while the 705820090 is 0.014" longer. Selection between these two depends on specific PCB layout requirements and LED lead positioning needs for your application.

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

A: The NTM-340 specifies 0.340" (8.64mm), the 705820085 specifies 0.335" (8.50mm), and the 705820090 specifies 0.354" (9.00mm). These variations affect the vertical spacing between the PCB surface and the LED package. All three dimensions fall within standard mechanical tolerances for T1/T1 3/4 LED assembly, accommodating typical lead-forming and soldering processes.

Q: Do these parts have different moisture sensitivity requirements?

A: The NTM-340 carries Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related handling restrictions. The Würth Elektronik substitutes list MSL as Not Applicable, which is consistent with nylon material properties and indicates equivalent or superior moisture resistance characteristics.

Q: Are there any regulatory or compliance differences between these parts?

A: All three parts are ROHS3 compliant and share identical ECCN (EAR99) and HTSUS (3926.90.9985) classifications. The Würth Elektronik parts carry additional REACH Unaffected designation. These regulatory alignments confirm that substitution does not introduce compliance complications.

Q: What packaging format is used for all these parts?

A: All three parts are supplied in Bag packaging format, ensuring consistent handling, storage, and integration into standard component procurement workflows.