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

Part Overview

The C&K 7101MPDCKE is a panel-mount toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 0.4VA at 20V AC/DC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The switch features anti-rotation actuator design, epoxy sealed terminals, and is suitable for applications requiring reliable switching in the -30°C to 85°C operating range.

Substiute Parts

7101MPDCKE

C&KIn Stock: 10007101MPDCKE Datasheet

Current PartRFQ

7101MPDCPE

C&KIn Stock: 6287101MPDCPE Datasheet

DirectRFQ

100SP1T1B3M2QEH

E-SwitchIn Stock: 1604100SP1T1B3M2QEH Datasheet

SimilarRFQ

100SP1T2B1M2REH

E-SwitchIn Stock: 1161100SP1T2B1M2REH Datasheet

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100SP1T2B3M2QEH

E-SwitchIn Stock: 1224100SP1T2B3M2QEH Datasheet

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34ASP12B1M2QT

Grayhill Inc.In Stock: 107634ASP12B1M2QT Datasheet

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34ASP12B1M2RT

Grayhill Inc.In Stock: 86834ASP12B1M2RT Datasheet

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34ASP12B3M2QT

Grayhill Inc.In Stock: 122534ASP12B3M2QT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7101MPDCKE is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit Configuration: SPDT
• Switch Function: On-On
• Mounting Type: Panel Mount
• Panel Cutout Dimensions: Circular - 6.35mm Dia
• Bushing Thread: 1/4-40
• Termination Style: PC Pin
• Operating Temperature Range: -30°C to 85°C (minimum)

Electrical Compatibility Parameters:

• Current Rating: Must support minimum 0.4VA (AC/DC)
• Voltage Rating - AC: Must support minimum 20V
• Voltage Rating - DC: Must support minimum 20V

Substitute parts are grouped into two categories:

Direct Equivalent: Parts with identical electrical ratings (0.4VA at 20V AC/DC) and matching mechanical specifications.

Functional Equivalent: Parts with higher electrical ratings (5A at 120V/125V AC or 28V DC) that maintain identical mechanical interfaces and circuit topology, suitable for applications where the original specifications are met or exceeded.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Direct Equivalent: The C&K 7101MPDCPE is the preferred substitute for the obsolete 7101MPDCKE. Both parts share identical electrical ratings (0.4VA at 20V AC/DC), mechanical interface specifications, and actuator dimensions. The 7101MPDCPE maintains active product status and RoHS compliance, ensuring long-term availability and regulatory alignment.

Secondary Recommendations - Functional Equivalents with Identical Electrical Ratings: The E-Switch 100SP1T2B1M2REH and Grayhill Inc. 34ASP12B1M2RT are functionally equivalent alternatives with matching 0.4VA at 20V AC/DC ratings. Both are active products with ROHS3 compliance. These parts feature standard round actuators with shorter actuator lengths (5.08mm versus 6.86mm on the original), which may require mechanical design verification for panel clearance and operator feel consistency.

Higher-Rated Alternatives: The E-Switch 100SP1T1B3M2QEH, 100SP1T2B3M2QEH, Grayhill Inc. 34ASP12B1M2QT, and 34ASP12B3M2QT are suitable for applications where higher electrical ratings (5A at 120V/125V AC or 28V DC) are required. These parts maintain identical mechanical interfaces and SPDT circuit topology. Selection among these options depends on specific actuator length requirements and voltage specifications of the target application.

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage practices.

Frequently Asked Questions (FAQ)

Q: Can the 7101MPDCPE directly replace the 7101MPDCKE without design modifications? A: Yes. The 7101MPDCPE is a direct equivalent with identical electrical ratings, mechanical dimensions, and panel interface specifications. No design modifications are required.

Q: What is the difference between the anti-rotation and standard round actuator types? A: The anti-rotation actuator on the original 7101MPDCKE includes a feature to prevent unintended rotation during installation. Standard round actuators on substitute parts do not include this feature. Mechanical design review is recommended if actuator rotation prevention is critical to the application.

Q: Can I use the higher-rated E-Switch or Grayhill parts (5A at 120V/125V) in place of the 0.4VA at 20V original? A: Yes, provided the application circuit and panel interface accommodate the substitute part's specifications. Higher-rated switches are electrically backward-compatible with lower-voltage, lower-current applications. Verify actuator length compatibility with panel cutout and operator interface requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. The 7101MPDCPE carries RoHS compliance, while all E-Switch and Grayhill alternatives are ROHS3 compliant. All parts meet current regulatory requirements.

Q: What is the impact of different electrical life ratings (100,000 cycles versus 40,000 cycles)? A: The original 7101MPDCKE is rated for 100,000 electrical cycles, while most substitutes are rated for 40,000 cycles. For applications with high switching frequency, verify that the substitute part's electrical life meets the application's duty cycle requirements over the intended product lifetime.

Q: Do all substitute parts use PC Pin termination? A: Yes. All recommended substitute parts maintain PC Pin termination style, ensuring compatibility with existing PCB footprints and soldering processes.

Q: What panel cutout dimensions are required for installation? A: All parts in this substitution group require a circular panel cutout of 6.35mm diameter with 1/4-40 bushing thread. No panel modifications are necessary when switching between these parts.