ALFD29902DN-A-120V Equivalent & Substitute Parts

Part Overview

The ALFD29902DN-A-120V is a 30mm illuminated pushbutton switch manufactured by IDEC, designed for momentary operation at 120V. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications. Substitute parts must maintain electrical and mechanical compatibility with the original specification to ensure proper integration into existing control circuits.

Substiute Parts

ALFD29902DN-A-120V

IDECIn Stock: 1201ALFD29902DN-A-120V Datasheet

Current PartRFQ

ALFD2QH202DNUA

IDECIn Stock: 926ALFD2QH202DNUA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALFD29902DN-A-120V is determined by the following critical parameters:

• Button Size: 30mm form factor
• Illumination Feature: Illuminated pushbutton capability
• Voltage Rating: 120V operation
• Contact Configuration: Momentary action with 2NC (two normally closed) contacts
• Manufacturer Compatibility: IDEC product line
• Regulatory Compliance: ROHS3 Compliant status
• Moisture Sensitivity: MSL 1 (Unlimited)

The substitute part ALFD2QH202DNUA meets all these criteria while offering active product status, ensuring continued availability and manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

The ALFD2QH202DNUA is the direct equivalent for the obsolete ALFD29902DN-A-120V. Selection is based on:

• Identical Electrical Specifications: Both components operate at 120V with 2NC contact configuration and momentary action
• Mechanical Compatibility: 30mm button size ensures direct form-factor replacement
• Regulatory Alignment: Both maintain ROHS3 compliance and identical ECCN/HTSUS classifications
• Active Product Status: ALFD2QH202DNUA is currently in active production, ensuring long-term availability and manufacturer support
• Moisture Sensitivity Equivalence: Both components share MSL 1 rating, indicating identical environmental handling requirements

Frequently Asked Questions (FAQ)

Q: Can ALFD2QH202DNUA directly replace ALFD29902DN-A-120V in existing installations?

A: Yes. Both components share identical electrical ratings (120V, 2NC momentary), mechanical form factor (30mm), and regulatory compliance status. Direct substitution is supported without circuit modification.

Q: What is the significance of the obsolete status for ALFD29902DN-A-120V?

A: Obsolete status indicates the manufacturer has discontinued production. The ALFD2QH202DNUA provides functional equivalence with active product status, ensuring continued availability for future orders and maintenance requirements.

Q: Are there packaging differences between these parts?

A: The original part number does not specify packaging detail. The substitute ALFD2QH202DNUA is supplied in bulk packaging. Verify packaging requirements for your application before ordering.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both components are ROHS3 compliant, share MSL 1 rating (unlimited moisture sensitivity), and carry identical ECCN (EAR99) and HTSUS (8536.50.9035) classifications.

Q: What parameters must remain constant for substitution validity?

A: Button size (30mm), illumination feature, voltage rating (120V), contact configuration (2NC), and operation type (momentary) must all match. Any deviation from these parameters requires re-evaluation of compatibility.