E101SYWLE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The E101SYWLE is a panel-mount toggle switch manufactured by C&K with SPDT (Single Pole Double Throw) configuration rated for 7.5A at 125V AC and 28V DC. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The switch features wire wrap termination, IP57 ingress protection, and epoxy sealed terminals suitable for industrial applications requiring dust and moisture resistance.

Substiute Parts

E101SYWLE

C&KIn Stock: 827E101SYWLE Datasheet

Current PartRFQ

E101SYWRE

C&KIn Stock: 847E101SYWRE Datasheet

DirectRFQ

34ASP11B5W1QT

Grayhill Inc.In Stock: 93834ASP11B5W1QT Datasheet

SimilarRFQ

A123S1YWQ

ElectroswitchIn Stock: 937A123S1YWQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the E101SYWLE are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (On-On)
• Mounting type (Panel Mount)
• Termination style (Wire Wrap)
• Panel cutout dimensions (Circular - 6.35mm Dia)
• Bushing thread (1/4-40)
• Voltage ratings (125V AC minimum, 28V DC)
• Operating temperature range (-30°C to 85°C minimum)

Substitution Categories:

Direct Equivalent: E101SYWRE (C&K) - Identical electrical and mechanical specifications with active product status and improved compliance documentation.

Similar Substitutes: Parts meeting core electrical parameters (SPDT, On-On, 125V AC, 28V DC, Panel Mount, Wire Wrap) with acceptable deviations in current rating, actuator length, or ingress protection rating, provided the application requirements permit such variations.

Parameter Comparison

Engineering Selection Recommendations

E101SYWRE (C&K) - Recommended Direct Replacement

The E101SYWRE is the optimal substitute for the obsolete E101SYWLE. Both parts share identical electrical ratings (7.5A, 125V AC, 28V DC), mechanical specifications (panel cutout, bushing thread), and environmental protection (IP57). The E101SYWRE maintains active product status with RoHS compliance certification, ensuring long-term availability and regulatory alignment. This part requires no design modification and provides direct functional equivalence.

34ASP11B5W1QT (Grayhill Inc.) - Acceptable Substitute with Current Derating

The 34ASP11B5W1QT provides mechanical and electrical compatibility with the E101SYWLE across all critical parameters: SPDT configuration, On-On function, 125V AC rating, 28V DC rating, panel mount design, wire wrap termination, and matching panel cutout/bushing specifications. The current rating is reduced to 5A (versus 7.5A), requiring application verification that circuit current does not exceed 5A. Operating temperature range and electrical life specifications are equivalent. This part is suitable for applications where current requirements are within the 5A limit.

A123S1YWQ (Electroswitch) - Acceptable Substitute with Mechanical Verification

The A123S1YWQ meets core electrical requirements (SPDT, On-On, 125V AC, 28V DC, wire wrap termination, 1/4-40 bushing thread) with a current rating of 6A and extended operating temperature range (-30°C to 90°C). Panel cutout dimensions are not specified, requiring mechanical verification before implementation. The part features epoxy sealed terminals and extended electrical life (60,000 cycles). RoHS compliance is confirmed. This part is suitable for applications where panel cutout compatibility can be confirmed.

Frequently Asked Questions (FAQ)

Q: Can E101SYWRE be used as a direct replacement for E101SYWLE?

A: Yes. The E101SYWRE is a direct equivalent with identical electrical ratings (7.5A, 125V AC, 28V DC), mechanical specifications (panel cutout, bushing thread), and environmental protection (IP57). No design changes are required.

Q: What is the primary limitation of the 34ASP11B5W1QT substitute?

A: The current rating is 5A compared to the E101SYWLE's 7.5A rating. This part is suitable only for applications where circuit current does not exceed 5A. Ingress protection rating is not specified, which may be relevant for applications requiring IP57 protection.

Q: Is the A123S1YWQ compatible with existing panel cutouts designed for E101SYWLE?

A: Panel cutout dimensions for the A123S1YWQ are not specified in the technical data. Mechanical verification is required before implementation to confirm compatibility with existing 6.35mm circular panel cutouts.

Q: Are all substitute parts RoHS compliant?

A: Yes. E101SYWRE is RoHS compliant, 34ASP11B5W1QT is ROHS3 compliant, and A123S1YWQ is RoHS compliant. All parts meet applicable regulatory requirements.

Q: What is the difference in electrical life between the main part and substitutes?

A: The E101SYWLE and E101SYWRE are rated for 40,000 cycles. The 34ASP11B5W1QT is also rated for 40,000 cycles. The A123S1YWQ offers extended electrical life at 60,000 cycles, providing longer service life in high-cycle applications.

Q: Can the A123S1YWQ operate at higher temperatures than the E101SYWLE?

A: Yes. The A123S1YWQ operating temperature range is -30°C to 90°C, compared to -30°C to 85°C for the E101SYWLE. This provides 5°C additional high-temperature capability.

Q: What termination style do all substitute parts use?

A: All substitute parts (E101SYWRE, 34ASP11B5W1QT, A123S1YWQ) use wire wrap termination, matching the E101SYWLE specification.