C&K 7105SY9AV2LE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7105SY9AV2LE is a momentary-off-momentary (Mom-Off-Mom) toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This through-hole mounted component features epoxy sealed terminals and a standard round actuator with 10.67mm length. The part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement.

Substiute Parts

7105SY9AV2LE

C&KIn Stock: 7347105SY9AV2LE Datasheet

Current PartRFQ

7105SY9AV2RE

C&KIn Stock: 12317105SY9AV2RE Datasheet

DirectRFQ

A127S1D9AV2Q

ElectroswitchIn Stock: 1015A127S1D9AV2Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Primary Matching Criteria:

• Circuit configuration (SPDT)
• Switch function (Mom-Off-Mom)
• Mounting type (Through Hole, Right Angle, Vertical)
• Termination style (PC Pin)
• Actuator type (Standard Round)

Electrical Compatibility Criteria:

• Current rating must equal or exceed 5A
• AC voltage rating must equal or exceed 120V
• DC voltage rating must equal or exceed 28V

Mechanical Compatibility Criteria:

• Actuator length within acceptable tolerance of 10.67mm
• Bushing thread type (Unthreaded)
• Actuator material (Brass, Chrome Plated)

Compliance Criteria:

• RoHS compliance status
• REACH status documentation

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute - C&K 7105SY9AV2RE:

The 7105SY9AV2RE is the primary equivalent for the obsolete 7105SY9AV2LE. Both components share identical electrical ratings (5A, 120V AC, 28V DC), mechanical configuration, and actuator specifications. The 7105SY9AV2RE maintains active product status with RoHS compliance. This part provides direct form-fit-function replacement with no design modifications required.

Alternative Substitute - Electroswitch A127S1D9AV2Q:

The A127S1D9AV2Q from Electroswitch meets all primary matching criteria with enhanced electrical performance. Current rating increases to 6A, AC voltage rating to 125V, and electrical life to 60,000 cycles. Operating temperature range extends to -30°C to 90°C. Actuator length is 10.41mm, representing a 0.26mm reduction from the original specification. This part is suitable for applications where enhanced performance margins are beneficial. RoHS compliance is confirmed; REACH status is vendor undefined.

Frequently Asked Questions (FAQ)

Q: Can the 7105SY9AV2RE be used as a direct replacement for the 7105SY9AV2LE?

A: Yes. Both parts are manufactured by C&K within the 7000 series, share identical electrical ratings, mechanical mounting configuration, and actuator specifications. The 7105SY9AV2RE is the active production equivalent.

Q: What are the key differences between the C&K 7105SY9AV2RE and the Electroswitch A127S1D9AV2Q?

A: The A127S1D9AV2Q provides higher current capacity (6A versus 5A), higher AC voltage rating (125V versus 120V), extended electrical life (60,000 versus 40,000 cycles), and wider operating temperature range (-30°C to 90°C versus -30°C to 85°C). Actuator length is 10.41mm compared to 10.67mm. Both maintain SPDT Mom-Off-Mom functionality and PC pin termination.

Q: Is the 0.26mm difference in actuator length between the main part and the Electroswitch alternative significant?

A: Actuator length differences of this magnitude may affect panel cutout alignment and actuator engagement depth. Verify mechanical fit within the specific application enclosure before implementation.

Q: Are both substitute parts RoHS compliant?

A: The C&K 7105SY9AV2RE is RoHS compliant. The Electroswitch A127S1D9AV2Q is RoHS compliant. Both parts meet RoHS requirements for new designs.

Q: What is the REACH compliance status of these alternatives?

A: The C&K 7105SY9AV2RE is REACH affected. The Electroswitch A127S1D9AV2Q has vendor undefined REACH status. Verify REACH documentation with the supplier for applications requiring REACH compliance confirmation.

Q: Can the A127S1D9AV2Q be used in applications designed for the original 7105SY9AV2LE?

A: The A127S1D9AV2Q is electrically and functionally compatible. Verify mechanical fit due to the 0.26mm actuator length difference and confirm REACH compliance requirements with your supplier before design implementation.