NDIR08S DIP Switch Equivalent & Substitute Parts

Part Overview

The NDIR08S is an 8-position DIP switch manufactured by APEM Inc., designed for through-hole PCB mounting applications requiring low-current switching at 24VDC. This SPST (Single Pole Single Throw) switch features a slide actuator with gold-plated copper alloy contacts and operates across an industrial temperature range of -20°C to 85°C. The component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent substitute parts are identified based on matching electrical specifications, mechanical compatibility, and certification requirements for direct board-level replacement.

Substiute Parts

NDIR08S

APEM Inc.In Stock: 911NDIR08S Datasheet

Current PartRFQ

JS0108AP4-S

NKK SwitchesIn Stock: 1534JS0108AP4-S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NDIR08S is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Circuit configuration (SPST), number of positions (8), current rating (25mA), and voltage rating (24VDC) must match exactly
• Mechanical Compatibility: Through-hole mounting type, 0.100" (2.54mm) pitch, and PC pin termination style must be identical
• Contact Specifications: Gold-plated finish required for signal integrity and corrosion resistance
• Lifecycle Ratings: Minimum 2,000 mechanical and electrical cycles required
• Regulatory Compliance: RoHS3 compliance and MSL 1 rating mandatory for equivalent substitution

The JS0108AP4-S from NKK Switches meets all electrical and mechanical substitution criteria, with documented compatibility across core switching parameters and certification requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the NDIR08S and JS0108AP4-S are Active product status components with full RoHS3 compliance and unlimited moisture sensitivity ratings (MSL 1), qualifying them for equivalent substitution in 24VDC, 25mA switching applications. Selection between these parts should be based on:

• Temperature Operating Range: The NDIR08S supports -20°C to 85°C, while the JS0108AP4-S operates within -25°C to 70°C. Applications requiring operation above 70°C or below -25°C must use the NDIR08S
• Board Clearance: The NDIR08S has a height of 0.173" (4.40mm) compared to the JS0108AP4-S at 0.162" (4.11mm). Space-constrained designs may benefit from the lower profile of the JS0108AP4-S
• Contact Material Composition: The NDIR08S uses copper alloy contacts while the JS0108AP4-S uses beryllium copper. Both materials are gold-plated and suitable for the specified electrical parameters
• Packaging and Availability: Both components are supplied in tube packaging with documented inventory levels

Frequently Asked Questions (FAQ)

Q: Can the JS0108AP4-S replace the NDIR08S in all applications?

A: The JS0108AP4-S is electrically and mechanically equivalent for applications operating within -25°C to 70°C. Applications requiring operation above 70°C must use the NDIR08S, as the substitute part's maximum operating temperature is limited to 70°C.

Q: What are the critical parameters that must match for DIP switch substitution?

A: Circuit configuration (SPST), number of positions (8), current rating (25mA), voltage rating (24VDC), mounting type (through hole), pitch (0.100"), termination style (PC pin), and contact finish (gold) must all match exactly. Lifecycle ratings (2,000 cycles minimum) and regulatory compliance (RoHS3, MSL 1) are also mandatory.

Q: Are there dimensional compatibility concerns between these parts?

A: The height above board differs by 0.011" (0.29mm), with the JS0108AP4-S being lower profile. PCB layout and component clearance requirements should be evaluated for space-constrained designs. Both parts maintain identical pitch and footprint dimensions.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the NDIR08S and JS0108AP4-S are RoHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified as EAR99 for export control purposes.

Q: What is the difference in contact material between these switches?

A: The NDIR08S uses copper alloy contacts while the JS0108AP4-S uses beryllium copper. Both are gold-plated and rated for identical electrical parameters (25mA at 24VDC). Material selection does not affect electrical compatibility for this application.