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

Part Overview

The C&K 7101TPWKE is a panel-mount toggle switch with SPDT (Single Pole Double Throw) configuration, rated for 0.4VA at 20V AC/DC. This component features anti-rotation actuator design, wire wrap termination, and epoxy sealed terminals suitable for industrial control applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing production requirements.

Substiute Parts

7101TPWKE

C&KIn Stock: 9367101TPWKE Datasheet

Current PartRFQ

7101TPWPE

C&KIn Stock: 7237101TPWPE Datasheet

DirectRFQ

34ASP18T7W1QT

Grayhill Inc.In Stock: 91334ASP18T7W1QT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7101TPWKE is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-On
• Mounting type: Panel Mount
• Panel cutout dimensions: Circular - 11.91mm Dia
• Bushing thread: 15/32-32
• Termination style: Wire Wrap
• Actuator length: 17.45mm
• Operating temperature range: -30°C ~ 85°C

Electrical Performance Criteria:

• Current rating must equal or exceed 0.4VA
• Voltage ratings (AC and DC) must equal or exceed 20V

Compliance Criteria:

• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The 7101TPWPE (C&K, Active status) qualifies as a direct equivalent, maintaining identical mechanical and electrical specifications while offering active product status. The 34ASP18T7W1QT (Grayhill Inc., Active status) qualifies as a similar substitute with enhanced electrical ratings (5A, 125V AC) and compatible mechanical interface, though with reduced electrical life (40,000 cycles versus 100,000 cycles).

Parameter Comparison

Engineering Selection Recommendations

7101TPWPE (C&K) - Direct Equivalent: This part is the primary substitute for the obsolete 7101TPWKE. It maintains identical electrical and mechanical specifications, including current rating (0.4VA), voltage ratings (20V AC/DC), panel cutout dimensions (11.91mm Dia), bushing thread (15/32-32), actuator length (17.45mm), and electrical life (100,000 cycles). Both parts are RoHS compliant with MSL 1 rating. The 7101TPWPE carries active product status, ensuring long-term availability and supply chain stability. This part is suitable for direct replacement in existing designs without modification.

34ASP18T7W1QT (Grayhill Inc.) - Similar Substitute: This part qualifies as a compatible alternative when higher electrical ratings are acceptable or beneficial. It provides enhanced current capacity (5A versus 0.4VA) and AC voltage rating (125V versus 20V), while maintaining mechanical compatibility through identical panel cutout dimensions, bushing thread, and actuator length. The actuator type differs (Standard Round versus Anti-Rotation), which may affect panel mounting aesthetics but does not impact electrical function. Electrical life is reduced to 40,000 cycles. This part is suitable for applications where the original 0.4VA/20V specification represents design margin, and higher ratings provide system flexibility. RoHS compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can the 7101TPWPE be used as a direct replacement for the 7101TPWKE? A: Yes. The 7101TPWPE is a direct equivalent with identical electrical ratings (0.4VA, 20V AC/DC), mechanical interface (11.91mm panel cutout, 15/32-32 bushing thread), actuator specifications (anti-rotation, 17.45mm length), and electrical life (100,000 cycles). The primary difference is product status: 7101TPWPE is active while 7101TPWKE is obsolete. No design modifications are required.

Q: What are the key differences between the 7101TPWPE and 34ASP18T7W1QT? A: Both parts share identical mechanical interfaces and operating temperature range. The 7101TPWPE maintains the original 0.4VA/20V electrical specification with 100,000 cycle life. The 34ASP18T7W1QT provides higher electrical ratings (5A/125V AC) with reduced electrical life (40,000 cycles) and uses a standard round actuator instead of anti-rotation design. Selection depends on whether enhanced electrical ratings are required and whether the reduced cycle life is acceptable for the application.

Q: Are all substitute parts panel-mount compatible with the original design? A: Yes. All listed substitutes maintain the same panel cutout dimensions (circular, 11.91mm diameter) and bushing thread (15/32-32), ensuring mechanical compatibility with existing panel installations. The 34ASP18T7W1QT uses a different actuator type (standard round versus anti-rotation), which may affect user interface feel but does not impact electrical or mechanical mounting compatibility.

Q: What compliance certifications apply to these parts? A: The 7101TPWKE is ROHS3 compliant. The 7101TPWPE is RoHS compliant. The 34ASP18T7W1QT is RoHS compliant. All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. The 7101TPWKE is REACH Unaffected; the 7101TPWPE is REACH Affected; the 34ASP18T7W1QT is REACH Unaffected.

Q: Which substitute should be selected for new designs? A: The 7101TPWPE is recommended for designs requiring exact electrical and mechanical equivalence to the original specification. The 34ASP18T7W1QT is suitable for applications where higher electrical ratings provide system margin or where cross-manufacturer sourcing is preferred. Both parts carry active product status and RoHS compliance.