ALFD29920DN-A-240V Equivalent & Substitute Parts

Part Overview

The ALFD29920DN-A-240V is a 30mm illuminated pushbutton switch manufactured by IDEC, designed for momentary operation at 240V. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing. The substitute part maintains the same electrical and mechanical specifications required for direct replacement in existing installations.

Substiute Parts

ALFD29920DN-A-240V

IDECIn Stock: 1132ALFD29920DN-A-240V Datasheet

Current PartRFQ

ALFD2QM420DNUA

IDECIn Stock: 840ALFD2QM420DNUA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ALFD2QM420DNUA qualifies as a direct substitute based on the following alignment of critical parameters:

• Manufacturer: Both parts are manufactured by IDEC, ensuring design consistency and mechanical compatibility
• Physical Form Factor: Both are 30mm pushbutton switches with identical mounting specifications
• Electrical Rating: Both operate at 240V, maintaining voltage compatibility in existing circuits
• Operation Mode: Both feature momentary operation with 2NO (two normally open) contact configuration
• Compliance Standards: Both meet ROHS3 compliance and share identical ECCN and HTSUS classifications
• Moisture Sensitivity: Both are rated MSL 1 (Unlimited), indicating equivalent environmental tolerance

The primary distinction is product status: the original part is obsolete while the substitute is active, making it the recommended sourcing option for new procurement and replacement applications.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the ALFD29920DN-A-240V, the ALFD2QM420DNUA is the appropriate substitute. Selection is based on:

• Compliance Alignment: Both parts maintain ROHS3 compliance and identical regulatory classifications (ECCN EAR99, HTSUS 8536.50.9035)
• Active Product Status: The substitute is an active product with confirmed inventory availability, eliminating obsolescence risk
• Electrical and Mechanical Equivalence: Identical voltage rating, form factor, and operational characteristics ensure direct replacement capability
• Supply Chain Continuity: Active product status ensures long-term availability for maintenance and future procurement cycles

Frequently Asked Questions (FAQ)

Q: Can the ALFD2QM420DNUA be used as a direct replacement for the ALFD29920DN-A-240V?

A: Yes. Both parts share identical electrical ratings (240V), physical dimensions (30mm), operation mode (momentary), and compliance certifications. The substitute is mechanically and electrically compatible for direct installation.

Q: What is the primary reason for substitution?

A: The original part (ALFD29920DN-A-240V) is classified as obsolete. The substitute (ALFD2QM420DNUA) is an active product with current manufacturing and inventory support, ensuring reliable sourcing for replacements and new installations.

Q: Are there any differences in environmental tolerance between these parts?

A: No. Both parts are rated MSL 1 (Unlimited), indicating identical moisture sensitivity and environmental operating conditions.

Q: Does the substitute meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant and share identical ECCN (EAR99) and HTSUS (8536.50.9035) classifications, ensuring equivalent regulatory compliance.

Q: What is the packaging difference?

A: The original part packaging is not specified in available documentation. The substitute is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are there any circuit design considerations when substituting this component?

A: No design modifications are required. The substitute maintains the same electrical characteristics and contact configuration, allowing direct circuit integration without redesign.