ASD31K04N Equivalent & Substitute Parts

Part Overview

The ASD31K04N is a keylock switch manufactured by IDEC, featuring a 3-position, 4PST-NC circuit configuration rated for 10A AC at 110V and 8A DC at 24V. This component is designed for panel-mounted applications requiring secure key-operated switching with multiple independent circuits. The product is currently obsolete, making identification of compatible substitute parts essential for maintenance, repair, and system continuity in existing installations.

Substiute Parts

ASD31K04N

IDECIn Stock: 913ASD31K04N Datasheet

Current PartRFQ

ASD31K04NU

IDECIn Stock: 1140ASD31K04NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASD31K04N is determined by strict alignment of electrical and mechanical parameters. The substitute part ASD31K04NU maintains compatibility through the following critical parameters:

Electrical Compatibility Criteria:

• Circuit configuration: 4PST-NC (four independent pole, normally closed contacts)
• Current ratings: 10A AC and 8A DC minimum
• Voltage ratings: 110V AC and 24V DC minimum

Mechanical Compatibility Criteria:

• Actuator type: Flat key operation
• Mounting configuration: Panel mount with screw terminals
• Panel cutout dimensions: Circular 30.50mm diameter
• Depth behind flange: 76.00mm
• Number of positions: 3-position operation

Compliance Criteria:

• RoHS3 compliance required
• Moisture sensitivity level: 1 (Unlimited)

The ASD31K04NU is classified as a direct substitute based on these parameters. Both parts share the ASD31 base product number, indicating common design lineage and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The ASD31K04NU is the designated substitute for the obsolete ASD31K04N. Selection of this substitute is supported by:

Product Status Alignment: The ASD31K04NU maintains active product status with IDEC, ensuring continued availability and manufacturing support. The ASD31K04N, classified as obsolete, no longer receives production or technical updates.

Compliance Certification: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, confirming regulatory and environmental compatibility for existing system installations.

Inventory Availability: The ASD31K04NU demonstrates higher current inventory levels (1080 units) compared to remaining ASD31K04N stock (851 units), providing supply continuity for replacement and new installations.

Base Product Lineage: Both parts share the ASD31 base product designation, indicating common mechanical and electrical design standards within the IDEC keylock switch product family.

Frequently Asked Questions (FAQ)

Q: Can the ASD31K04NU directly replace the ASD31K04N in existing installations?

A: Yes. Both parts share identical electrical specifications (10A AC at 110V, 8A DC at 24V), circuit configuration (4PST-NC), mechanical mounting dimensions (30.50mm circular cutout, 76.00mm depth), and termination style (screw terminal). The ASD31K04NU is the active production equivalent.

Q: What is the significance of the base product number ASD31?

A: The ASD31 designation indicates the core product family within IDEC's keylock switch line. Both the ASD31K04N and ASD31K04NU share this base number, confirming mechanical and electrical design compatibility within this product series.

Q: Are there packaging differences between these parts?

A: The ASD31K04N packaging designation is not specified in available documentation. The ASD31K04NU is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Why is the ASD31K04N classified as obsolete?

A: Product obsolescence reflects IDEC's discontinuation of this specific model number. The ASD31K04NU represents the current active production equivalent, maintaining all functional and compliance requirements.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the ASD31K04N and ASD31K04NU maintain ROHS3 compliance and identical moisture sensitivity ratings (MSL 1 - Unlimited), confirming compatibility with current environmental and regulatory standards.

Q: What are the critical parameters for confirming substitution compatibility?

A: Substitution compatibility is determined by: circuit configuration (4PST-NC), current ratings (10A AC, 8A DC), voltage ratings (110V AC, 24V DC), actuator type (flat key), mounting type (panel mount), panel cutout dimensions (30.50mm circular), and termination style (screw terminal).