C&K 7211SY9AV2LE Toggle Switch SP3T Equivalent & Substitute Parts

Part Overview

The C&K 7211SY9AV2LE is a toggle switch with SP3T (single pole, three throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This through-hole, right-angle vertical mounted switch features a standard round actuator and PC pin termination. The product is currently obsolete, necessitating identification of equivalent and substitute components for ongoing applications and new designs.

Substiute Parts

7211SY9AV2LE

C&KIn Stock: 8127211SY9AV2LE Datasheet

Current PartRFQ

7211SY9AV2RE

C&KIn Stock: 7277211SY9AV2RE Datasheet

DirectRFQ

100DP6T1B4M7RE

E-SwitchIn Stock: 1304100DP6T1B4M7RE Datasheet

SimilarRFQ

A232P31D9AV2B

ElectroswitchIn Stock: 1161A232P31D9AV2B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Circuit configuration (SP3T)
• Switch function (On-On-On)
• Mounting type (Through Hole, Right Angle, Vertical)
• Termination style (PC Pin)
• Actuator type and length compatibility
• Operating temperature range
• Electrical life rating

The 7211SY9AV2LE has two identified substitutes:

Direct Manufacturer Equivalent: 7211SY9AV2RE (C&K) — Same manufacturer, identical circuit and mounting specifications, active product status with improved RoHS compliance.

Cross-Manufacturer Alternatives: 100DP6T1B4M7RE (E-Switch) and A232P31D9AV2B (Electroswitch) — Both maintain SP3T circuit, through-hole right-angle vertical mounting, and PC pin termination. These alternatives differ in current/voltage ratings and actuator specifications, requiring application-level verification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The C&K 7211SY9AV2RE is the primary substitute for the obsolete 7211SY9AV2LE. Both parts share identical electrical ratings (5A, 120V AC, 28V DC), mounting configuration, and actuator specifications. The 7211SY9AV2RE is an active product with RoHS compliance, making it suitable for new designs and legacy system updates.

For Lower-Power Applications: The E-Switch 100DP6T1B4M7RE and Electroswitch A232P31D9AV2B are viable alternatives only for applications where the reduced current and voltage ratings (0.4VA–0.5VA at 20V–28V) are acceptable. These parts maintain the SP3T circuit topology and through-hole vertical mounting but are not suitable for applications requiring the full 5A/120V capability of the original part.

Compliance Considerations: The original 7211SY9AV2LE is RoHS non-compliant. All identified substitutes (7211SY9AV2RE, 100DP6T1B4M7RE, A232P31D9AV2B) are RoHS compliant, supporting regulatory requirements for new product designs.

Frequently Asked Questions (FAQ)

Q: Can the 100DP6T1B4M7RE or A232P31D9AV2B directly replace the 7211SY9AV2LE in all applications?

A: No. While these parts share the SP3T circuit and through-hole vertical mounting, their current and voltage ratings are significantly lower (0.4VA–0.5VA versus 5A). Substitution is only valid for applications operating within the reduced electrical specifications of these alternatives.

Q: What is the primary advantage of the 7211SY9AV2RE over the obsolete 7211SY9AV2LE?

A: The 7211SY9AV2RE maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. It is the recommended direct replacement for the obsolete part.

Q: Are there differences in actuator design between these substitutes?

A: Yes. The 7211SY9AV2LE and 7211SY9AV2RE use a standard round actuator at 10.67mm length. The 100DP6T1B4M7RE has a slightly shorter standard round actuator (10.41mm), while the A232P31D9AV2B features a flatted actuator at 11.38mm. These differences may affect panel cutout compatibility and user interface feel.

Q: What is the significance of the "Jumper needed to achieve triple throw" feature?

A: This indicates that the SP3T function requires a jumper configuration to achieve full three-position throw capability. All identified substitutes share this requirement.

Q: Which substitute offers the longest electrical life?

A: The Electroswitch A232P31D9AV2B provides 60,000 electrical cycles, compared to 40,000 cycles for the main part and the C&K 7211SY9AV2RE. This extended life may be beneficial for high-cycle applications.