ASLD39940DN-A-12V Equivalent & Substitute Parts

Part Overview

The ASLD39940DN-A-12V is a selector switch manufactured by IDEC, classified as a switch selector with position selection functionality. This part is currently obsolete, making identification of equivalent alternatives essential for ongoing maintenance, repair, and system support applications. The obsolete status necessitates sourcing compatible substitute components that maintain functional and electrical equivalence while ensuring system reliability.

Substiute Parts

ASLD39940DN-A-12V

IDECIn Stock: 1145ASLD39940DN-A-12V Datasheet

Current PartRFQ

ASLD31140DNUA

IDECIn Stock: 895ASLD31140DNUA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASLD39940DN-A-12V is determined by the following critical parameters:

• Manufacturer: IDEC (same manufacturer ensures design and functional compatibility)
• Product Type: Selector Switch with position selection capability
• Voltage Rating: 12V operation
• RoHS Compliance: ROHS3 Compliant (regulatory requirement match)
• Moisture Sensitivity Level: MSL 1 (Unlimited) (environmental tolerance equivalence)
• Electrical Classification: Switch selector category (HTSUS 8536.50.9025)

The substitute part ASLD31140DNUA meets all these criteria, establishing direct functional and electrical equivalence with the obsolete ASLD39940DN-A-12V.

Parameter Comparison

Engineering Selection Recommendations

The ASLD31140DNUA is the direct substitute for the obsolete ASLD39940DN-A-12V. Both components are manufactured by IDEC and share identical electrical specifications, voltage ratings, and regulatory compliance certifications. The substitute part maintains active product status, ensuring continued availability and manufacturer support. Both components satisfy ROHS3 compliance requirements and carry equivalent environmental ratings (MSL 1). Selection of the ASLD31140DNUA eliminates obsolescence risk while preserving electrical and mechanical compatibility with existing system designs.

Frequently Asked Questions (FAQ)

Q: Can the ASLD31140DNUA directly replace the ASLD39940DN-A-12V?

A: Yes. Both components are IDEC selector switches rated for 12V operation with identical RoHS3 compliance and MSL ratings. The substitute maintains functional equivalence for selector switch position applications.

Q: What is the primary reason for substitution?

A: The ASLD39940DN-A-12V is obsolete. The ASLD31140DNUA is an active product offering equivalent electrical and mechanical specifications with ongoing manufacturer support.

Q: Are there packaging differences between these parts?

A: The main part packaging is unspecified, while the substitute is available in Bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both components are ROHS3 compliant with identical ECCN (EAR99) and HTSUS (8536.50.9025) classifications.

Q: What is the moisture sensitivity rating for these components?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.