RTAC32S05M25FS Rotary Switch - Equivalent & Substitute Parts

Part Overview

The RTAC32S05M25FS is a 5-position rotary switch manufactured by C&K, featuring dual-pole, 5-throw (DP5T) configuration with non-shorting contact timing. This panel-mount component is rated for 150mA at 60 VAC/DC and utilizes a flatted 6mm diameter actuator with 25mm length. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

RTAC32S05M25FS

C&KIn Stock: 885RTAC32S05M25FS Datasheet

Current PartRFQ

A20515RNZQ

C&KIn Stock: 1094A20515RNZQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RTAC32S05M25FS is determined by the following critical parameters:

• Circuit Configuration: Must maintain DP5T (2 poles, 5 throws) topology
• Contact Timing: Must preserve non-shorting (BBM) operation
• Mounting Interface: Panel mount with solder lug termination required
• Actuator Compatibility: Flatted actuator type with compatible diameter and length
• Electrical Performance: Current and voltage ratings must meet or exceed application requirements
• Index Stops: Fixed position indexing required
• Angle of Throw: 30° standard rotation

The substitute part A20515RNZQ satisfies these core functional requirements while offering enhanced electrical ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

The A20515RNZQ rotary switch provides functional equivalence to the obsolete RTAC32S05M25FS with the following considerations:

Electrical Compatibility: The A20515RNZQ exceeds the original part's electrical specifications across all ratings (2.5A AC vs. 150mA, 350mA DC vs. 150mA, 125V vs. 60V). This provides margin for application requirements and is suitable for direct substitution in circuits designed for the RTAC32S05M25FS.

Mechanical Compatibility: Both switches maintain identical DP5T circuit topology, non-shorting contact timing, fixed index stops, and 30° angle of throw. Panel mount configuration and solder lug termination are preserved.

Physical Dimensions: The A20515RNZQ requires verification of three dimensional parameters: actuator diameter (6.35mm vs. 6mm), actuator length (38.10mm vs. 25mm), and depth behind panel (20.83mm vs. 18.70mm). Panel cutout diameter is slightly smaller (9.80mm vs. 10.20mm). Mechanical integration must be confirmed for the specific application enclosure.

Compliance Status: The A20515RNZQ holds active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment.

Contact Material: The substitute employs pure silver (Ag) contacts versus brass with silver finish, providing enhanced conductivity and contact reliability.

Frequently Asked Questions (FAQ)

Q: Can the A20515RNZQ directly replace the RTAC32S05M25FS in existing designs?

A: Electrical substitution is valid. The A20515RNZQ maintains identical circuit configuration (DP5T), contact timing (non-shorting), and mounting interface (panel mount, solder lug). Mechanical integration requires verification of actuator length (38.10mm vs. 25mm), depth behind panel (20.83mm vs. 18.70mm), and panel cutout diameter (9.80mm vs. 10.20mm) against the specific enclosure design.

Q: What are the key electrical differences between these parts?

A: The A20515RNZQ provides higher current capacity (2.5A AC, 350mA DC vs. 150mA) and voltage rating (125V vs. 60V). Both specifications exceed the original part's ratings, making the substitute suitable for applications requiring the RTAC32S05M25FS electrical performance.

Q: Why is the A20515RNZQ actuator longer?

A: The A20515RNZQ actuator length is 38.10mm compared to 25mm for the RTAC32S05M25FS. This difference reflects design variations between the RTA and A series. Panel clearance behind the mounting surface must be verified to accommodate the longer actuator.

Q: Are there packaging differences between these parts?

A: The RTAC32S05M25FS is supplied in standard packaging, while the A20515RNZQ is packaged in trays. Both are available in new original condition with substantial inventory levels.

Q: What compliance certifications apply to the A20515RNZQ?

A: The A20515RNZQ is ROHS3 compliant and REACH unaffected. Both parts carry EAR99 ECCN classification and 8536.50.9020 HTSUS code. The substitute meets current regulatory requirements for electronic component procurement.

Q: How do the contact materials differ?

A: The RTAC32S05M25FS uses brass contacts with silver finish, while the A20515RNZQ employs pure silver (Ag) contacts. Silver contacts provide superior electrical conductivity and contact reliability, representing an improvement in the substitute design.