C&K 7201SD9CME Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The C&K 7201SD9CME is a DPDT toggle switch rated for 5A at 120V AC and 28V DC, designed for through-hole mounting applications. This component features epoxy sealed terminals, brass chrome-plated actuators, and an operating temperature range of -30°C to 85°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

7201SD9CME

C&KIn Stock: 9747201SD9CME Datasheet

Current PartRFQ

7201SD9CSE

C&KIn Stock: 11017201SD9CSE Datasheet

DirectRFQ

34BWDP11B4M2QT

Grayhill Inc.In Stock: 82934BWDP11B4M2QT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7201SD9CME are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Circuit configuration (DPDT)
• Switch function (On-On)
• Current rating (5A AC/DC minimum)
• Voltage ratings (120V AC and 28V DC minimum)
• Mounting type (Through Hole)
• Termination style (PC Pin)
• Actuator type and approximate length
• Operating temperature range (-30°C to 85°C)

Parts meeting these core parameters are classified as direct or similar substitutes. Variations in secondary parameters such as electrical life, ingress protection, or RoHS compliance do not preclude substitution but are noted for design consideration.

Parameter Comparison

Engineering Selection Recommendations

The C&K 7201SD9CSE serves as the direct substitute for the obsolete 7201SD9CME. Both parts are from the same manufacturer series (7000), share identical electrical ratings, mechanical dimensions, and operating parameters. The 7201SD9CSE is currently in active production status and is RoHS compliant, making it the preferred choice for new designs and ongoing procurement.

The Grayhill Inc. 34BWDP11B4M2QT is classified as a similar substitute. It meets all core electrical and mechanical requirements with the following considerations: AC voltage rating is 125V (5V higher than the main part), actuator length is 12.60mm (0.15mm longer), electrical life is rated at 50,000 cycles (half that of the main part), and it provides IP67 ingress protection. This part is suitable for applications where enhanced environmental protection is beneficial and where the reduced electrical life cycle does not conflict with application requirements.

Frequently Asked Questions (FAQ)

Q: Can the 7201SD9CSE be used as a direct replacement for the 7201SD9CME?

A: Yes. The 7201SD9CSE is electrically and mechanically equivalent to the 7201SD9CME across all critical parameters: DPDT circuit, 5A current rating, 120V AC / 28V DC voltage ratings, through-hole mounting, PC pin termination, and identical actuator dimensions. The primary advantage is active production status and RoHS compliance.

Q: What are the key differences between the C&K 7201SD9CSE and the Grayhill 34BWDP11B4M2QT?

A: Both parts meet the core electrical and mechanical requirements. The Grayhill part has a slightly higher AC voltage rating (125V vs. 120V), a marginally longer actuator (12.60mm vs. 12.45mm), half the electrical life rating (50,000 vs. 100,000 cycles), and includes IP67 ingress protection. Selection depends on application-specific environmental and cycle-life requirements.

Q: Is the 0.15mm difference in actuator length between the C&K and Grayhill parts significant?

A: The actuator length difference of 0.15mm is within typical mechanical tolerance ranges for toggle switch applications. Panel cutout compatibility should be verified based on specific mechanical drawings for the application.

Q: Does RoHS compliance affect functional performance?

A: RoHS compliance indicates manufacturing process adherence to lead-free and restricted substance standards. It does not alter electrical or mechanical performance characteristics. The 7201SD9CSE (RoHS compliant) and 34BWDP11B4M2QT (ROHS3 compliant) perform identically to the original 7201SD9CME in circuit operation.

Q: Which substitute part should be selected for new designs?

A: The C&K 7201SD9CSE is recommended for new designs due to direct equivalence, active production status, and RoHS compliance. The Grayhill 34BWDP11B4M2QT is suitable when enhanced ingress protection (IP67) is a design requirement.