C&K 7103TZBES Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7103TZBES is an active production toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 0.4VA at 20V AC/DC. This panel-mount switch features a standard round actuator with satin chrome finish and solder lug termination. The part is in active product status with 1079 units in current inventory. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and circuit configuration requirements necessitate alternative sourcing options.

Substiute Parts

7103TZBES

C&KIn Stock: 11057103TZBES Datasheet

Current PartRFQ

100SP1T8B13M1REH

E-SwitchIn Stock: 1045100SP1T8B13M1REH Datasheet

SimilarRFQ

100SP3T8B13M1QEH

E-SwitchIn Stock: 1800100SP3T8B13M1QEH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7103TZBES are identified based on strict alignment with the following critical parameters:

• Circuit Configuration: SPDT topology required for functional equivalence
• Electrical Ratings: Current and voltage ratings must meet or exceed 0.4VA at 20V AC/DC
• Mechanical Compatibility: Panel cutout diameter (11.91mm), bushing thread (15/32-32), and solder lug termination must match
• Operating Temperature: -30°C ~ 85°C range required
• Electrical Life: 40,000 cycles minimum
• Mounting Type: Panel mount configuration required

Two E-Switch alternatives are identified:

100SP1T8B13M1REH: Matches all critical parameters with identical electrical ratings (0.4VA, 20V AC/DC), circuit configuration (SPDT), mechanical dimensions, and operating specifications. Switch function differs (On-On vs. On-Off-On).

100SP3T8B13M1QEH: Exceeds electrical ratings (5A, 120V AC/28V DC) with identical circuit configuration (SPDT), mechanical compatibility, and On-Off-On switch function. Suitable for applications requiring higher electrical capacity within the same mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

100SP1T8B13M1REH Selection: This substitute provides direct electrical and mechanical equivalence to the 7103TZBES. Both parts maintain identical current and voltage ratings, circuit topology, and mechanical interface specifications. The primary functional difference is switch action (On-On vs. On-Off-On). This part is suitable for applications where the On-On function is acceptable and direct replacement is required. ROHS3 compliance is confirmed; REACH status differs (Unaffected vs. Affected).

100SP3T8B13M1QEH Selection: This substitute exceeds the electrical specifications of the 7103TZBES while maintaining mechanical compatibility and SPDT circuit configuration. The higher current rating (5A vs. 0.4VA) and voltage rating (120V AC vs. 20V AC) provide design margin for applications requiring increased electrical capacity. The On-Off-On switch function matches the original part. This option is suitable when higher electrical performance is required within the same panel cutout and bushing thread specifications. ROHS3 compliance is confirmed; REACH status is Unaffected.

Frequently Asked Questions (FAQ)

Q: Can the 100SP1T8B13M1REH directly replace the 7103TZBES?

A: Mechanical and electrical compatibility is confirmed. Both parts share identical panel cutout diameter (11.91mm), bushing thread (15/32-32), solder lug termination, and electrical ratings (0.4VA, 20V AC/DC). The functional difference is switch action: 100SP1T8B13M1REH operates On-On while 7103TZBES operates On-Off-On. Substitution is valid only if the On-On function meets circuit requirements.

Q: When should the 100SP3T8B13M1QEH be selected over the 100SP1T8B13M1REH?

A: The 100SP3T8B13M1QEH is selected when the application requires higher electrical capacity (5A vs. 0.4VA current rating, 120V vs. 20V AC voltage rating) while maintaining the On-Off-On switch function. Mechanical compatibility with the 7103TZBES panel cutout and bushing thread is identical. This part provides design margin for higher-power applications.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical panel cutout dimensions (11.91mm circular diameter) and bushing thread specifications (15/32-32). Solder lug termination is consistent across all parts. Actuator length varies slightly (17.45mm for 7103TZBES vs. 18.00mm for E-Switch parts), which does not affect mechanical interchangeability in standard panel mount applications.

Q: What is the difference in REACH compliance between these parts?

A: The 7103TZBES (C&K) is REACH Affected, while both E-Switch substitutes (100SP1T8B13M1REH and 100SP3T8B13M1QEH) are REACH Unaffected. Applications subject to REACH regulations should verify compliance requirements with the specific supply chain and end-use jurisdiction.

Q: Do all parts meet RoHS3 compliance?

A: Yes. The 7103TZBES and both E-Switch substitutes (100SP1T8B13M1REH and 100SP3T8B13M1QEH) are ROHS3 Compliant.

Q: What is the electrical life specification for these switches?

A: All three parts are rated for 40,000 electrical cycles, providing equivalent operational durability across the product group.