E101SYCLE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The E101SYCLE is a panel-mount toggle switch manufactured by C&K, featuring SPDT (Single Pole Double Throw) circuitry with On-On switching function. Rated for 7.5A at 125V AC and 28V DC, this switch is designed for applications requiring sealed, waterproof operation in industrial and commercial environments. The part is currently obsolete, necessitating identification of functionally equivalent alternatives from active product lines that maintain electrical and mechanical compatibility.

Substiute Parts

E101SYCLE

C&KIn Stock: 754E101SYCLE Datasheet

Current PartRFQ

E101SYCRE

C&KIn Stock: 935E101SYCRE Datasheet

DirectRFQ

100AWSP1T1B1M2QEH

E-SwitchIn Stock: 1120100AWSP1T1B1M2QEH Datasheet

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100SP1T1B1M2QEH

E-SwitchIn Stock: 4098100SP1T1B1M2QEH Datasheet

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100SP1T1B1VS3QEH

E-SwitchIn Stock: 1023100SP1T1B1VS3QEH Datasheet

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34ASP11B1M2QT

Grayhill Inc.In Stock: 114634ASP11B1M2QT Datasheet

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A123L21CXCQ

ElectroswitchIn Stock: 787A123L21CXCQ Datasheet

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A123P31YCQ

ElectroswitchIn Stock: 796A123P31YCQ Datasheet

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A123S1CWCG

ElectroswitchIn Stock: 793A123S1CWCG Datasheet

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A123S1DCQ

ElectroswitchIn Stock: 935A123S1DCQ Datasheet

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A123S1H3CQ

ElectroswitchIn Stock: 1072A123S1H3CQ Datasheet

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A123S1YCQ

ElectroswitchIn Stock: 974A123S1YCQ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters: circuit configuration (SPDT), switch function (On-On), mounting type (Panel Mount), panel cutout dimensions (Circular 6.35mm), bushing thread (1/4-40), termination style (PC Pin), and operating temperature range (-30°C ~ 85°C minimum). Current and voltage ratings establish the upper operational limits; substitute parts must not exceed the original specifications to ensure safe circuit operation. Actuator type and length variations are permissible where mechanical clearance allows. Ingress protection ratings may be equal or superior. Electrical life and RoHS compliance are secondary selection criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: E101SYCRE (C&K)

E101SYCRE is the direct equivalent from the same manufacturer with identical electrical and mechanical specifications. This part maintains 7.5A current rating, 125V AC voltage rating, and all mechanical parameters including panel cutout, bushing thread, and PC Pin termination. The part is currently in active production status with superior inventory availability (914 units). ROHS3 compliance is maintained. This is the preferred selection for direct replacement applications.

Secondary Substitutes: E-Switch Series (100AWSP1T1B1M2QEH, 100SP1T1B1M2QEH, 100SP1T1B1VS3QEH)

E-Switch alternatives provide SPDT On-On functionality with identical mechanical mounting parameters (6.35mm panel cutout, 1/4-40 bushing thread, PC Pin termination). These parts operate within the required temperature range (-30°C to 85°C). Current rating is reduced to 5A, and AC voltage rating is 120V. These substitutes are suitable for applications where the original 7.5A specification exceeds actual circuit requirements. All three variants are in active production with substantial inventory levels (996 to 4017 units).

Tertiary Substitutes: Grayhill 34ASP11B1M2QT

The Grayhill part maintains SPDT configuration with 5A current rating and 125V AC voltage rating. Mechanical compatibility is confirmed through identical panel cutout (6.35mm), bushing thread (1/4-40), and PC Pin termination. Operating temperature range and electrical life (40,000 cycles) align with original specifications. This part is in active production status with 1047 units available.

Alternative Substitutes: Electroswitch A-Series (A123L21CXCQ, A123P31YCQ, A123S1CWCG, A123S1DCQ, A123S1H3CQ)

Electroswitch alternatives provide 6A current rating and 125V AC voltage rating with extended operating temperature range (-30°C to 90°C) and superior electrical life (60,000 cycles). These parts feature 1/4-40 bushing thread compatibility. Mechanical variations exist: A123L21CXCQ uses Solder Lug termination (incompatible with PC Pin requirement), A123P31YCQ features Flatted actuator type, while A123S1CWCG, A123S1DCQ, and A123S1H3CQ maintain Standard Round actuators with PC Pin termination. Panel cutout dimensions are not specified for Electroswitch variants, requiring mechanical verification before selection. All Electroswitch parts are in active production with inventory ranging from 682 to 990 units.

Frequently Asked Questions (FAQ)

Q: Can E101SYCRE directly replace E101SYCLE without circuit modification?

A: Yes. E101SYCRE is electrically and mechanically identical to E101SYCLE. Both feature 7.5A current rating, 125V AC voltage rating, SPDT configuration, and identical panel mounting dimensions. No circuit or mechanical modifications are required.

Q: Are E-Switch 100 series parts suitable for applications requiring 7.5A operation?

A: No. E-Switch 100 series parts are rated for 5A maximum current. These substitutes are appropriate only for applications where actual circuit current does not exceed 5A. Exceeding this rating will compromise switch reliability and safety.

Q: What is the impact of reduced voltage rating in E-Switch alternatives (120V AC vs. 125V AC)?

A: The 120V AC rating in E-Switch parts is acceptable for standard North American 120V AC circuits. However, for applications specifically designed for 125V AC operation, the reduced margin may be a consideration. Verify actual circuit voltage before selection.

Q: Do Electroswitch A-series parts require panel cutout modification?

A: Panel cutout dimensions for Electroswitch A-series are not specified in available data. Mechanical verification is required to confirm compatibility with existing 6.35mm circular panel cutouts before installation.

Q: Why do some substitute parts have different actuator lengths?

A: Actuator length variations (10.16mm to 13.97mm) reflect design differences between manufacturers. Provided mechanical clearance exists in the application enclosure, these variations do not affect electrical function. Verify available panel depth before selecting parts with longer actuators.

Q: What is the significance of IP57 vs. IP67 ingress protection ratings?

A: IP57 (original specification) provides dust protection and waterproof operation under temporary immersion. IP67 (E-Switch 100AWSP1T1B1M2QEH) provides dust-tight operation and waterproof capability under continuous immersion. IP67 represents enhanced environmental protection and is a suitable upgrade where available.

Q: Are Electroswitch parts with Solder Lug termination compatible with PC Pin applications?

A: No. A123L21CXCQ features Solder Lug termination, which is incompatible with PC Pin circuit board connections. This part requires circuit board redesign or custom adapter implementation and is not recommended for direct substitution.

Q: What inventory considerations apply to these substitute parts?

A: E101SYCRE offers the highest inventory availability (914 units) among direct equivalents. E-Switch 100SP1T1B1M2QEH provides the largest inventory pool (4017 units) among all alternatives. Electroswitch variants range from 682 to 990 units. Verify current stock status with suppliers before final selection.