Equivalent & Substitute Parts for C&K 7101TCWZBES Toggle Switch

Part Overview

The C&K 7101TCWZBES is a panel-mount SPDT toggle switch rated for 0.4VA at 20V AC/DC with a satin chrome actuator and IP67 ingress protection. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing production and maintenance applications. The 7000 series design provides reliable switching functionality with 100,000 electrical cycles and operates across -30°C to 85°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	7101TCWZBES
Manufacturer	C&K
Circuit Configuration	SPDT (Single Pole Double Throw)
Switch Function	On-On
Current Rating	0.4VA (AC/DC)
Voltage Rating - AC	20V
Voltage Rating - DC	20V
Mounting Type	Panel Mount
Actuator Type	Standard Round
Actuator Length	17.45mm
Termination Style	Solder Lug
Panel Cutout Dimensions	Circular - 11.91mm Dia
Bushing Thread	15/32-32
Ingress Protection	IP67 - Dust Tight, Waterproof
Operating Temperature Range	-30°C to 85°C
Electrical Life	100,000 Cycles
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

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

Circuit Configuration: SPDT topology required for functional equivalence
Switch Function: On-On operation mandatory
Current Rating: Minimum 0.4VA (AC/DC) required; higher ratings acceptable
Voltage Rating: Minimum 20V AC and 20V DC required; higher ratings acceptable
Mounting Type: Panel mount configuration required
Actuator Type and Length: Standard round actuator at 17.45mm required for mechanical fit
Termination Style: Solder lug termination required
Panel Cutout Dimensions: Circular 11.91mm diameter required for panel compatibility
Bushing Thread: 15/32-32 thread required for mechanical assembly
Operating Temperature Range: Must support -30°C to 85°C minimum
Ingress Protection: IP67 or equivalent environmental sealing required

Parts meeting all these criteria are considered direct substitutes. Deviations in electrical life, actuator material finish, or terminal sealing method do not preclude substitution provided core electrical and mechanical parameters align.

Parameter Comparison

Parameter	7101TCWZBES (Main)	7101TCWZBE	34ASP18T7M1RT	A123T1TXZB
Manufacturer	C&K	C&K	Grayhill Inc.	Electroswitch
Product Status	Obsolete	Active	Active	Active
Circuit	SPDT	SPDT	SPDT	SPDT
Switch Function	On-On	On-On	On-On	On-On
Current Rating (VA)	0.4	0.4	0.4	0.5
Voltage Rating - AC (V)	20	20	20	28
Voltage Rating - DC (V)	20	20	20	28
Mounting Type	Panel Mount	Panel Mount	Panel Mount	Panel Mount
Actuator Type	Standard Round	Standard Round	Standard Round	Standard Round
Actuator Length (mm)	17.45	17.45	17.45	17.45
Termination Style	Solder Lug	Solder Lug	Solder Lug	Solder Lug
Panel Cutout Dimensions	Circular - 11.91mm Dia	Circular - 11.91mm Dia	Circular - 11.91mm Dia	Not Specified
Bushing Thread	15/32-32	15/32-32	15/32-32	15/32-32
Ingress Protection	IP67	IP67	Not Specified	Splash Proof
Operating Temperature Range	-30°C to 85°C	-30°C to 85°C	-30°C to 85°C	-30°C to 90°C
Electrical Life (Cycles)	100,000	100,000	40,000	60,000
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Substitute: C&K 7101TCWZBE

The 7101TCWZBE is the direct equivalent to the obsolete 7101TCWZBES. Both parts share identical electrical ratings (0.4VA, 20V AC/DC), mechanical dimensions, circuit configuration, and operating temperature range. The 7101TCWZBE maintains active product status with ROHS3 compliance and 100,000 electrical cycle rating. The only documented difference is terminal sealing method (epoxy sealed versus satin chrome actuator finish), which does not affect functional substitution. This part is recommended as the primary replacement.

Secondary Substitute: Grayhill Inc. 34ASP18T7M1RT

The 34ASP18T7M1RT meets all critical mechanical and electrical parameters: SPDT circuit, On-On function, 0.4VA rating, 20V AC/DC, panel mount configuration, 17.45mm actuator length, 15/32-32 bushing thread, and -30°C to 85°C operating range. This part is RoHS compliant and maintains active product status. The electrical life rating is reduced to 40,000 cycles compared to the original 100,000 cycles. Panel cutout dimensions and ingress protection specifications are not provided; verification against application requirements is necessary before selection.

Tertiary Substitute: Electroswitch A123T1TXZB

The A123T1TXZB provides higher electrical ratings (0.5VA, 28V AC/DC) and extended operating temperature range (-30°C to 90°C), making it suitable for applications requiring enhanced performance margins. The part maintains SPDT circuit, On-On function, panel mount configuration, 17.45mm actuator length, and 15/32-32 bushing thread. Electrical life is rated at 60,000 cycles. Panel cutout dimensions are not specified. Ingress protection is listed as splash proof rather than IP67. This part is RoHS compliant and active. Selection is appropriate for applications with higher voltage or current requirements.

Frequently Asked Questions (FAQ)

Q: Can the 7101TCWZBE directly replace the obsolete 7101TCWZBES?

A: Yes. Both parts are manufactured by C&K, share the same base product number (7101TC), and have identical electrical ratings, mechanical dimensions, and operating specifications. The 7101TCWZBE is the active production equivalent.

Q: What is the primary difference between the 7101TCWZBES and 7101TCWZBE?

A: The documented difference is the terminal sealing method. The 7101TCWZBES features a satin chrome actuator finish, while the 7101TCWZBE uses epoxy sealed terminals. Both maintain IP67 ingress protection and identical electrical performance.

Q: Can the Grayhill 34ASP18T7M1RT be used in place of the C&K 7101TCWZBES?

A: The 34ASP18T7M1RT meets all critical electrical and mechanical parameters for substitution. However, the electrical life rating is 40,000 cycles versus 100,000 cycles for the original part. Applications requiring extended cycle life should account for this difference. Panel cutout dimensions and ingress protection specifications should be verified against application requirements.

Q: What are the advantages of the Electroswitch A123T1TXZB?

A: The A123T1TXZB provides higher electrical ratings (0.5VA at 28V versus 0.4VA at 20V) and an extended operating temperature range to 90°C. These characteristics make it suitable for applications with higher voltage or current demands or more demanding thermal environments. Electrical life is 60,000 cycles.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 7101TCWZBE is ROHS3 compliant. The 34ASP18T7M1RT and A123T1TXZB are RoHS compliant. All parts meet environmental compliance requirements.

Q: What panel cutout dimensions are required for installation?

A: The 7101TCWZBES, 7101TCWZBE, and 34ASP18T7M1RT all require a circular 11.91mm diameter cutout. The A123T1TXZB panel cutout dimensions are not specified in available documentation and should be verified before installation.

Q: Do all substitute parts support the same ingress protection level?

A: The 7101TCWZBES and 7101TCWZBE both provide IP67 (dust tight, waterproof) protection. The 34ASP18T7M1RT ingress protection is not specified. The A123T1TXZB provides splash proof protection, which is less stringent than IP67. Applications requiring IP67 protection should prioritize the C&K parts.

Q: What bushing thread specification applies to all parts?

A: All four parts use 15/32-32 bushing thread, ensuring mechanical compatibility for panel mount installation.

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