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

Part Overview

The C&K 7201SPYCQI is an active production toggle switch with DPDT (Double Pole Double Throw) configuration rated for 5A at 120V AC and 28V DC. This panel-mount switch features anti-rotation actuator design, PC pin termination, and epoxy potting for environmental protection. The component is ROHS3 compliant and maintains an electrical life rating of 100,000 cycles. Alternative equivalent parts may be required due to inventory constraints, application-specific actuator preferences, or voltage/current rating adjustments for particular circuit designs.

Substiute Parts

7201SPYCQI

C&KIn Stock: 9457201SPYCQI Datasheet

Current PartRFQ

100DP1T1B1M2QEH

E-SwitchIn Stock: 8034100DP1T1B1M2QEH Datasheet

SimilarRFQ

100DP1T6B15M2RE

E-SwitchIn Stock: 891100DP1T6B15M2RE Datasheet

SimilarRFQ

2-1825138-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 18262-1825138-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7201SPYCQI is determined by the following critical parameters: circuit configuration (DPDT), switch function (On-On), mounting type (panel mount), panel cutout dimensions (6.35mm circular), bushing thread (1/4-40), and termination style (PC pin). These parameters ensure mechanical and electrical compatibility within the application.

The substitute parts are grouped into two categories based on electrical ratings:

Category A - Full Electrical Equivalents (5A @ 120V AC): Parts maintaining the original current and voltage specifications. These provide direct functional replacement without circuit redesign.

Category B - Reduced Rating Substitutes (0.4VA @ 20V AC/DC): Parts with lower voltage and current ratings. These are suitable only for applications operating within the reduced electrical envelope and require circuit verification before implementation.

All substitute parts maintain DPDT configuration, On-On function, panel mount design, matching panel cutout and bushing specifications, PC pin termination, and operating temperature range compatibility with the main part.

Parameter Comparison

Engineering Selection Recommendations

100DP1T1B1M2QEH (E-Switch): This substitute maintains full electrical equivalence with the 7201SPYCQI, supporting 5A at 120V AC and 28V DC. Both parts are ROHS3 compliant and active production items. The primary difference is reduced electrical life (40,000 cycles versus 100,000 cycles) and actuator type variation (standard round versus anti-rotation). This part is suitable for applications where the reduced cycle life is acceptable and actuator preference does not impose design constraints.

100DP1T6B15M2RE (E-Switch): This substitute operates at reduced electrical ratings (0.4VA at 20V AC/DC) and is suitable only for low-power signal switching applications. The flat anti-rotation actuator and extended actuator length (12.30mm) represent mechanical differences from the main part. ROHS3 compliance and active production status are maintained. Implementation requires verification that circuit voltage and current demands do not exceed the 0.4VA and 20V specifications.

2-1825138-4 (TE Connectivity ALCOSWITCH Switches): This substitute also operates at reduced electrical ratings (0.4VA at 20V AC/DC) and is limited to low-power applications. Electrical life is significantly reduced to 6,000 cycles. ROHS3 compliance is maintained, and the part is in active production. The Gemini A series designation and nickel-plated actuator material represent design variations. This part requires the same voltage and current verification as the 100DP1T6B15M2RE before implementation.

Frequently Asked Questions (FAQ)

Q: Can the 100DP1T1B1M2QEH directly replace the 7201SPYCQI in all applications?

A: The 100DP1T1B1M2QEH maintains electrical equivalence at 5A and 120V AC ratings, matching the main part's voltage and current specifications. Mechanical compatibility is confirmed through identical panel cutout dimensions, bushing thread, and termination style. The primary consideration is reduced electrical life (40,000 cycles versus 100,000 cycles). Applications requiring extended cycle life should evaluate whether the reduced rating is acceptable for the intended duty cycle.

Q: What applications are suitable for the reduced-rating substitutes (100DP1T6B15M2RE and 2-1825138-4)?

A: These parts are limited to low-power signal switching applications operating at 20V or below and drawing 0.4VA or less. They are not suitable for applications requiring the original 5A at 120V specifications. Circuit redesign or power reduction is necessary before implementation. Verify that all connected loads and control circuits operate within the 0.4VA and 20V envelope.

Q: Are there mechanical compatibility concerns with actuator type differences?

A: All substitute parts maintain the required panel cutout dimensions (6.35mm circular) and bushing thread (1/4-40), ensuring mechanical fit within the panel opening. Actuator type variations (anti-rotation, standard round, flat anti-rotation) and length differences (10.41mm to 12.30mm) may affect user interface feel and operational characteristics but do not prevent physical installation. Verify that actuator length does not interfere with panel thickness or adjacent components.

Q: Do all substitute parts meet the same compliance standards as the 7201SPYCQI?

A: All substitute parts are ROHS3 compliant and maintain EAR99 ECCN classification. The 100DP1T1B1M2QEH and 100DP1T6B15M2RE are REACH unaffected, while the 7201SPYCQI and 2-1825138-4 are REACH affected. Verify REACH compliance requirements for your specific application and supply chain.

Q: What is the impact of electrical life rating differences on part selection?

A: The 7201SPYCQI provides 100,000 electrical cycles, while the E-Switch substitutes provide 40,000 cycles and the TE Connectivity part provides 6,000 cycles. Select based on the expected number of switch actuations over the product lifetime. Applications with frequent switching should prioritize parts with higher electrical life ratings to ensure reliability and minimize premature failure risk.