Würth Elektronik 705820140 LED Standoff Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 705820140 is a T1/T1 3/4 LED standoff manufactured from Nylon 66 material with UL94 V-2 flame rating. This component is designed to support and position LED leads in electronic assemblies. The part is currently Active in product status with full ROHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified based on matching material composition, LED form factor compatibility, flame rating, and regulatory compliance, with variations in physical height dimensions.

Substiute Parts

705820140

Würth ElektronikIn Stock: 2553705820140 Datasheet

Current PartRFQ

705820135

Würth ElektronikIn Stock: 1089705820135 Datasheet

Parametric EquivalentRFQ

705820145

Würth ElektronikIn Stock: 2464705820145 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 705820140 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Manufacturer: Würth Elektronik
• LED Type: T1, T1 3/4
• Material: Nylon 66
• Flame Rating: UL94 V-2
• Color: Black
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected
• Packaging: Bag

Variable Parameter:

• Length: Substitutes are available in alternative height dimensions (0.531", 0.571") to accommodate different PCB assembly requirements and LED lead positioning needs.

The 705820140 has two qualified substitutes: 705820135 (shorter at 0.531"/14.60mm) and 705820145 (taller at 0.571"/14.50mm). Both maintain identical material, flame rating, LED compatibility, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Selection between the 705820140 and its substitutes is determined by the required standoff height for your specific PCB assembly design:

705820140 (0.551"/14.00mm): Use as the primary specification when this exact height is required for LED lead positioning and PCB clearance.

705820135 (0.531"/14.60mm): Select when a shorter standoff height is acceptable or required. This part maintains all material, compliance, and flame rating specifications. Lower inventory availability should be considered in procurement planning.

705820145 (0.571"/14.50mm): Select when a taller standoff height is required for increased PCB-to-LED clearance. This part maintains all material, compliance, and flame rating specifications.

All three parts carry Active product status and full ROHS3 and REACH compliance certification, ensuring regulatory acceptance in current manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can 705820135, 705820140, and 705820145 be used interchangeably?

A: These parts are functionally equivalent only when the height dimension is not a critical design constraint. The 0.02" (0.50mm) height differences between parts must be evaluated against your PCB assembly layout, LED lead length, and clearance requirements. All three parts are identical in material, flame rating, LED compatibility, and regulatory compliance.

Q: What is the significance of the UL94 V-2 flame rating?

A: UL94 V-2 indicates the material meets UL94 vertical flame test requirements, demonstrating controlled burning characteristics. This certification is mandatory for components used in electronic assemblies subject to flammability standards. All substitute parts maintain this rating.

Q: Are there any compatibility issues between these LED standoffs and T1/T1 3/4 LED packages?

A: No. All three parts are designed and certified for T1 and T1 3/4 LED form factors. Compatibility is determined by the LED package type, not the standoff height variant.

Q: What does ROHS3 Compliant mean for component selection?

A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, mercury, cadmium, and other hazardous materials. This certification is required for products sold in EU markets and is standard for current manufacturing. All substitute parts carry this certification.

Q: How should height differences affect my design decision?

A: Height selection depends on your PCB assembly design. Measure the required distance from the PCB surface to the LED lead connection point. Select the standoff height that provides proper LED positioning without excessive clearance or interference with adjacent components.

Q: Is inventory availability a factor in part selection?

A: Inventory levels are provided for procurement planning purposes. The 705820140 and 705820145 have higher stock levels (2530 and 2407 units respectively) compared to 705820135 (982 units). If supply continuity is critical, prioritize parts with higher inventory availability.