ASD33K22N Equivalent & Substitute Parts

Part Overview

The ASD33K22N is a keylock switch manufactured by IDEC, featuring 3-position, 4PST-2NO/2NC configuration with 10A AC and 8A DC current ratings at 110 VAC / 24 VDC. This component is designed for panel-mounted industrial control applications requiring secure key-operated switching with IP54 environmental protection.

The ASD33K22N is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support ongoing maintenance and replacement requirements for installed equipment.

Substiute Parts

ASD33K22N

IDECIn Stock: 1073ASD33K22N Datasheet

Current PartRFQ

ASD33K22NU

IDECIn Stock: 1075ASD33K22NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete ASD33K22N is based on the following critical parameters that must remain consistent:

• Circuit Configuration: 4PST-2NO/2NC (four-pole, double-throw with two normally open and two normally closed contacts)
• Number of Positions: 3-position operation
• Current Ratings: Minimum 10A AC and 8A DC capability
• Voltage Ratings: 110V AC and 24V DC operation
• Actuator Type: Flat key mechanism for secure key-operated control
• Contact Material: Silver (Ag) for reliable electrical performance
• Mounting Interface: Panel mount with circular 30.50mm diameter cutout
• Termination: Screw terminal connection
• Environmental Rating: IP54 protection level
• Compliance: ROHS3 compliance requirement

The ASD33K22NU is identified as a direct substitute based on manufacturer designation and maintained electrical and mechanical compatibility within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The ASD33K22NU is the designated substitute for the obsolete ASD33K22N. Both components share the same base product number (ASD33) and maintain ROHS3 compliance with MSL 1 rating. The ASD33K22NU is currently in active production status, ensuring availability for replacement and new installations.

Selection of the ASD33K22NU eliminates obsolescence risk while preserving electrical and mechanical compatibility with existing panel-mounted installations designed for the ASD33K22N. The active product status of the ASD33K22NU provides long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the ASD33K22NU directly replace the ASD33K22N in existing installations?

A: Yes. Both components share the same base product number (ASD33), identical circuit configuration (4PST-2NO/2NC), matching voltage and current ratings, and compatible panel mounting dimensions. The ASD33K22NU maintains the same screw terminal interface and IP54 environmental protection.

Q: What is the primary difference between these two part numbers?

A: The ASD33K22N is obsolete, while the ASD33K22NU is in active production. Both maintain equivalent electrical specifications and mechanical interfaces.

Q: Are there packaging differences between the ASD33K22N and ASD33K22NU?

A: The ASD33K22NU is supplied in bulk packaging. Packaging configuration does not affect electrical or mechanical compatibility for panel-mounted applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ASD33K22N and ASD33K22NU are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

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

A: Verify that replacement applications require 3-position keylock switching with 4PST-2NO/2NC configuration, 10A AC / 8A DC current capacity, 110V AC / 24V DC voltage operation, flat key actuation, silver contacts, panel mounting with 30.50mm circular cutout, and screw terminal termination.