C&K 7105TCWWLE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7105TCWWLE is a panel-mounted toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This component features momentary-off-momentary (Mom-Off-Mom) switching function with wire wrap termination and IP67 ingress protection. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

7105TCWWLE

C&KIn Stock: 8537105TCWWLE Datasheet

Current PartRFQ

7105TCWWRE

C&KIn Stock: 8377105TCWWRE Datasheet

DirectRFQ

A127T1TWWG

ElectroswitchIn Stock: 981A127T1TWWG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7105TCWWLE is determined by the following critical parameters:

• Circuit Configuration: SPDT (Single Pole Double Throw) - mandatory match
• Switch Function: Mom-Off-Mom operation - mandatory match
• Mounting Type: Panel Mount with circular 11.91mm diameter cutout - mandatory match
• Termination Style: Wire Wrap - mandatory match
• Bushing Thread: 15/32-32 - mandatory match
• Current Rating: Minimum 5A (AC/DC) - equal or higher acceptable
• Voltage Rating - AC: Minimum 120V - equal or higher acceptable
• Voltage Rating - DC: Minimum 28V - equal or higher acceptable
• Actuator Type and Length: Standard Round, 17.45mm - mandatory match
• Operating Temperature Range: Minimum -30°C to 85°C - equal or wider range acceptable

Substitute parts must satisfy all mandatory parameters and meet or exceed all electrical ratings. Parts that deviate from mandatory mechanical or functional specifications are not suitable replacements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute - C&K 7105TCWWRE

The 7105TCWWRE is the direct equivalent to the obsolete 7105TCWWLE. Both parts are from the C&K 7000 series and share identical electrical ratings, mechanical specifications, and functional characteristics. The primary distinction is product status: the 7105TCWWRE is active and currently in production, while the 7105TCWWLE is obsolete. The 7105TCWWRE carries RoHS compliance certification and is the recommended primary replacement for new designs and system maintenance. REACH status differs between the two parts (REACH Affected vs. REACH Unaffected), which may impact supply chain considerations depending on regulatory requirements.

Alternative Substitute - Electroswitch A127T1TWWG

The A127T1TWWG from Electroswitch is a cross-manufacturer substitute that meets all mandatory functional and mechanical parameters. This part exceeds the electrical specifications of the 7105TCWWLE with a 6A current rating (versus 5A) and 125V AC rating (versus 120V AC). The operating temperature range extends to 90°C (versus 85°C), and electrical life is rated at 60,000 cycles (versus 40,000 cycles). The ingress protection rating differs: the A127T1TWWG is rated Splash Proof rather than IP67. Panel cutout dimensions are not specified for the A127T1TWWG. This part is suitable for applications where the enhanced electrical ratings and extended operating temperature range provide design margin, provided the ingress protection level is acceptable for the intended environment.

Frequently Asked Questions (FAQ)

Q: Can the 7105TCWWRE be used as a direct replacement for the 7105TCWWLE?

A: Yes. The 7105TCWWRE is the direct equivalent. Both parts share identical circuit configuration (SPDT), switch function (Mom-Off-Mom), electrical ratings (5A, 120V AC, 28V DC), mechanical specifications (panel mount, 17.45mm actuator, 15/32-32 bushing thread), and termination style (wire wrap). The 7105TCWWRE is the active production part and is the recommended replacement.

Q: What are the key differences between the C&K 7105TCWWRE and the Electroswitch A127T1TWWG?

A: Both parts satisfy the mandatory functional and mechanical requirements. The A127T1TWWG provides higher electrical ratings (6A versus 5A, 125V AC versus 120V AC) and extended operating temperature range (-30°C to 90°C versus -30°C to 85°C). The A127T1TWWG is rated for 60,000 electrical cycles versus 40,000 for the C&K parts. The ingress protection differs: the A127T1TWWG is Splash Proof rather than IP67. Panel cutout dimensions are not specified for the A127T1TWWG.

Q: Is the A127T1TWWG suitable for applications requiring IP67 ingress protection?

A: The A127T1TWWG is rated Splash Proof, which does not meet IP67 specifications. For applications requiring IP67 dust-tight and waterproof performance, the C&K 7105TCWWRE is the appropriate selection.

Q: Can I use the A127T1TWWG in a circuit designed for 5A at 120V AC?

A: Yes. The A127T1TWWG is rated for 6A at 125V AC, which exceeds the circuit requirements of 5A at 120V AC. The higher ratings provide design margin and are compatible with circuits specified for the lower values.

Q: What is the difference in panel cutout requirements between these parts?

A: The C&K 7105TCWWLE and 7105TCWWRE both require a circular panel cutout of 11.91mm diameter with a 15/32-32 bushing thread. Panel cutout dimensions are not specified for the Electroswitch A127T1TWWG, though the bushing thread specification (15/32-32) is identical. Verify mechanical fit for the A127T1TWWG in existing panel installations.

Q: Are there compliance or regulatory differences between these parts?

A: All three parts are RoHS compliant and carry EAR99 ECCN classification. The 7105TCWWLE is ROHS3 compliant and REACH Unaffected. The 7105TCWWRE is RoHS compliant and REACH Affected. The A127T1TWWG is RoHS compliant with REACH status listed as Vendor Undefined. Regulatory requirements for your application may influence part selection.