C&K 7101MPYCQI Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7101MPYCQI is an active-status toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This panel-mount component features anti-rotation actuator design with PC pin termination and epoxy potting for environmental protection. The part is ROHS3 compliant and REACH affected. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit electrical and mechanical parameter variations.

Substiute Parts

7101MPYCQI

C&KIn Stock: 8497101MPYCQI Datasheet

Current PartRFQ

100SP1T1B1M2REH

E-SwitchIn Stock: 1284100SP1T1B1M2REH Datasheet

SimilarRFQ

100SP1T1B3M2QEH

E-SwitchIn Stock: 1604100SP1T1B3M2QEH Datasheet

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100SP1T2B3M2QEH

E-SwitchIn Stock: 1224100SP1T2B3M2QEH Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7101MPYCQI are grouped based on electrical and mechanical compatibility within the SPDT toggle switch category. The primary substitution criteria are:

Critical Parameters for Substitution:

• Circuit configuration (SPDT maintained)
• Switch function (On-On maintained)
• Mounting type (Panel Mount maintained)
• Panel cutout dimensions (Circular 6.35mm Dia maintained)
• Bushing thread (1/4-40 maintained)
• Termination style (PC Pin maintained)
• Operating temperature range (-30°C to 85°C maintained)

Allowable Variations:

• Current rating (5A maintained across all substitutes)
• Voltage rating - AC (120V maintained across all substitutes)
• Voltage rating - DC (28V maintained across all substitutes)
• Actuator type (Anti-Rotation vs. Standard Round)
• Actuator length (5.08mm vs. 10.41mm)
• Electrical life (100,000 cycles vs. 40,000 cycles)
• Manufacturer (C&K vs. E-Switch)
• RoHS and REACH compliance status

All substitute parts are manufactured by E-Switch and belong to the 100 series. Substitutes maintain identical electrical ratings and mechanical mounting interfaces with the main part.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - 100SP1T2B3M2QEH (E-Switch): This part provides the closest electrical and mechanical match to the 7101MPYCQI. It maintains identical current rating (5A AC/DC), voltage ratings (120V AC / 28V DC), actuator length (5.08mm), and operating temperature range. The primary difference is reduced electrical life (40,000 cycles versus 100,000 cycles). Both parts are ROHS3 compliant. This substitute is suitable for applications where the lower cycle rating is acceptable.

Secondary Substitute - 100SP1T1B3M2QEH (E-Switch): This part matches all electrical specifications (5A AC/DC, 120V AC / 28V DC) and maintains ROHS3 compliance. The actuator length differs at 10.41mm versus 5.08mm on the main part, and electrical life is reduced to 40,000 cycles. This substitute is suitable when panel depth permits the longer actuator.

Limited Substitute - 100SP1T1B1M2REH (E-Switch): This part has significantly reduced electrical ratings (0.4VA at 20V AC/DC) compared to the main part (5A at 120V AC / 28V DC). This substitute is not electrically compatible with the 7101MPYCQI and should not be used as a direct replacement. It is listed only for reference within the E-Switch 100 series family.

All substitute parts maintain identical mechanical mounting interfaces (panel cutout, bushing thread, termination style) and operating temperature range, ensuring physical compatibility with existing panel installations.

Frequently Asked Questions (FAQ)

Q: Can the 100SP1T2B3M2QEH directly replace the 7101MPYCQI in all applications?

A: The 100SP1T2B3M2QEH is mechanically and electrically compatible with the 7101MPYCQI for applications where the reduced electrical life specification (40,000 cycles versus 100,000 cycles) is acceptable. Both parts maintain identical current and voltage ratings, mounting interfaces, and operating temperature range.

Q: What is the significance of the actuator length difference between the main part and substitutes?

A: The 7101MPYCQI features a 5.08mm anti-rotation actuator, while the 100SP1T1B3M2QEH and 100SP1T1B1M2REH have 10.41mm standard round actuators. The longer actuator may require additional panel depth clearance. The 100SP1T2B3M2QEH maintains the 5.08mm length, eliminating this consideration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (100SP1T1B1M2REH, 100SP1T1B3M2QEH, and 100SP1T2B3M2QEH) are ROHS3 compliant, matching the compliance status of the main part 7101MPYCQI.

Q: Why is the 100SP1T1B1M2REH listed as a substitute if it has lower electrical ratings?

A: The 100SP1T1B1M2REH is listed within the E-Switch 100 series family structure but is not electrically compatible with the 7101MPYCQI due to its 0.4VA rating at 20V. It should not be selected as a replacement for applications requiring 5A at 120V AC or 28V DC.

Q: What is the difference between anti-rotation and standard round actuator types?

A: The anti-rotation actuator on the 7101MPYCQI is designed to prevent unintended rotation during installation or operation. The standard round actuators on E-Switch substitutes do not include this feature. Selection depends on application requirements for actuator stability.

Q: Do all parts use the same termination style?

A: Yes, the main part and all substitute parts use PC Pin termination, ensuring compatibility with existing PCB layouts and connector interfaces.