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

Part Overview

The C&K 7101TCKE is a panel-mount toggle switch with SPDT (Single Pole Double Throw) configuration, rated for 0.4VA at 20V AC/DC. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The switch features epoxy sealed terminals, brass chrome-plated actuator, and 100,000 electrical life cycles, suitable for applications requiring reliable switching in temperature ranges from -30°C to 85°C.

Substiute Parts

7101TCKE

C&KIn Stock: 10537101TCKE Datasheet

Current PartRFQ

7101TCPE

C&KIn Stock: 8597101TCPE Datasheet

DirectRFQ

34ASP18T7M2QT

Grayhill Inc.In Stock: 97934ASP18T7M2QT Datasheet

SimilarRFQ

A123T1TCG

ElectroswitchIn Stock: 752A123T1TCG Datasheet

SimilarRFQ

A123T1TCQ

ElectroswitchIn Stock: 1116A123T1TCQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7101TCKE is determined by the following critical parameters: circuit configuration (SPDT), switch function (On-On), mounting type (panel mount), actuator type (standard round), actuator length (17.45mm), termination style (PC pin), panel cutout dimensions (circular 11.91mm), and bushing thread (15/32-32). These parameters define mechanical and electrical compatibility within the application footprint.

Substitute parts are categorized into two groups:

Direct Substitute (Electrical & Mechanical Compatibility): The 7101TCPE from C&K maintains identical specifications across all critical parameters, with the primary distinction being active product status and updated compliance certifications.

Functional Equivalents (Higher Electrical Ratings): The Grayhill 34ASP18T7M2QT and Electroswitch A123T1TCG and A123T1TCQ models share identical mechanical interfaces and circuit configuration but provide elevated current and voltage ratings. These parts are suitable for applications where the original 0.4VA specification is insufficient, provided the mechanical installation remains unchanged.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical & Mechanical Specifications):

The C&K 7101TCPE is the primary substitute for the obsolete 7101TCKE. Both parts maintain identical current ratings (0.4VA), voltage ratings (20V AC/DC), mechanical interfaces, and electrical life specifications. The 7101TCPE is actively manufactured and carries current RoHS compliance certification. This part is suitable for direct substitution in existing designs without circuit modification.

For Applications Requiring Enhanced Electrical Performance:

The Grayhill 34ASP18T7M2QT, Electroswitch A123T1TCG, and Electroswitch A123T1TCQ provide higher current capacity (5A to 6A) and voltage ratings (125V AC, 28V DC) while maintaining mechanical compatibility. These parts are appropriate for new designs or system upgrades where increased electrical capacity is required. Selection among these three depends on compliance requirements and electrical life cycle expectations.

Compliance Considerations:

All substitute parts carry RoHS compliance certification. The 7101TCPE carries REACH Affected status, while the Grayhill and Electroswitch alternatives carry REACH Unaffected or Vendor Undefined status. Compliance requirements specific to the application should guide final selection.

Frequently Asked Questions (FAQ)

Q: Can the 7101TCPE be used as a direct replacement for the 7101TCKE?

A: Yes. The 7101TCPE maintains identical electrical ratings (0.4VA, 20V AC/DC), circuit configuration (SPDT), mechanical mounting interface (panel mount, 11.91mm circular cutout, 15/32-32 bushing thread), actuator specifications (standard round, 17.45mm length), and termination style (PC pin). The primary difference is product status (active versus obsolete) and updated compliance certifications.

Q: What are the mechanical compatibility requirements for substitute parts?

A: All substitute parts listed share the following mechanical specifications: panel mount installation, standard round actuator with 17.45mm length, PC pin termination, 15/32-32 bushing thread, and circular panel cutout of 11.91mm diameter. These parameters ensure physical interchangeability within the application footprint.

Q: When should the higher-rated Grayhill or Electroswitch alternatives be selected?

A: The Grayhill 34ASP18T7M2QT (5A, 125V AC) and Electroswitch A123T1TCG and A123T1TCQ (6A, 125V AC) are appropriate when the application requires electrical capacity exceeding the 0.4VA specification of the original part. These parts maintain mechanical compatibility but provide significantly higher current and voltage ratings.

Q: Are there differences in electrical life between substitute options?

A: Yes. The 7101TCKE and 7101TCPE both specify 100,000 electrical life cycles. The Grayhill 34ASP18T7M2QT specifies 40,000 cycles, while the Electroswitch A123T1TCG and A123T1TCQ specify 60,000 cycles. Application duty cycle requirements should inform this selection criterion.

Q: What compliance certifications apply to each substitute part?

A: All parts carry RoHS compliance. The 7101TCPE carries REACH Affected status. The Grayhill 34ASP18T7M2QT carries REACH Unaffected status. The Electroswitch A123T1TCG and A123T1TCQ carry Vendor Undefined REACH status. Regulatory requirements specific to the end application should guide compliance-based selection.

Q: Are there packaging differences among the substitute parts?

A: The Electroswitch A123T1TCG and A123T1TCQ are supplied in bulk packaging. The C&K 7101TCPE and Grayhill 34ASP18T7M2QT packaging specifications are not detailed in the provided data. Procurement requirements should be verified with the component supplier.