C&K U11SYWME Toggle Switch SPDT 5A 120V Equivalent & Substitute Parts

Part Overview

The C&K U11SYWME is a Panel Mount Toggle Switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This component features a standard round actuator with wire wrap termination and epoxy sealed terminals. The U11SYWME is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations where this functionality is required.

Substiute Parts

U11SYWME

C&KIn Stock: 1036U11SYWME Datasheet

Current PartRFQ

U11SYWSE

C&KIn Stock: 1047U11SYWSE Datasheet

DirectRFQ

100SP1T4B1M51QEH

E-SwitchIn Stock: 984100SP1T4B1M51QEH Datasheet

SimilarRFQ

A123S1YWQ

ElectroswitchIn Stock: 937A123S1YWQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the U11SYWME are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for direct substitution:

Critical Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-On
• Current rating: 5A minimum (AC/DC)
• Voltage rating: 120V AC minimum, 28V DC
• Mounting type: Panel Mount
• Actuator type: Standard Round
• Termination style: Wire Wrap
• Panel cutout dimensions: Circular - 6.35mm Dia
• Bushing thread: 1/4-40

Allowable Variations:

• Actuator length: Minor variations acceptable within mechanical envelope constraints
• Electrical life: Higher cycle ratings are acceptable
• Operating temperature: Extended ranges are acceptable
• Product status: Active status preferred for ongoing availability
• RoHS/REACH compliance: Variations noted but do not preclude substitution

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent - U11SYWSE (C&K): The U11SYWSE is the direct equivalent to the obsolete U11SYWME. Both parts share identical electrical ratings, mechanical dimensions, and functional specifications. The U11SYWSE maintains active product status with 988 units in stock. This part is the primary recommendation for direct replacement applications. RoHS compliance status differs (ROHS3 vs. RoHS), with REACH status showing affected designation for U11SYWSE.

Alternative Substitute - 100SP1T4B1M51QEH (E-Switch): The E-Switch 100SP1T4B1M51QEH meets all critical electrical and mechanical parameters with matching 5A/120V ratings and SPDT On-On configuration. This part features ROHS3 compliance and REACH unaffected status. The actuator length extends to 16.26mm compared to 10.67mm on the main part, requiring verification of mechanical clearance in the application. Electrical life is rated at 40,000 cycles, lower than the 100,000-cycle specification of the U11SYWME. Active product status with 925 units available.

Alternative Substitute - A123S1YWQ (Electroswitch): The Electroswitch A123S1YWQ provides electrical ratings exceeding the main part specification at 6A/125V, offering margin for higher-demand applications. SPDT On-On circuit configuration and wire wrap termination match the U11SYWME. Actuator length of 10.41mm is comparable to the original 10.67mm specification. Panel cutout dimensions are not specified for this part, requiring dimensional verification before implementation. Electrical life rated at 60,000 cycles. Active product status with 904 units in stock. RoHS compliance confirmed; REACH status listed as vendor undefined.

Frequently Asked Questions (FAQ)

Q: Can the U11SYWSE directly replace the U11SYWME without any modifications? A: Yes. The U11SYWSE is the direct equivalent with identical electrical ratings (5A/120V AC, 28V DC), circuit configuration (SPDT On-On), mechanical dimensions (6.35mm circular cutout, 1/4-40 bushing thread), and termination style (wire wrap). Both parts are rated for 100,000 electrical cycles and operate across -30°C to 85°C.

Q: What is the primary difference between the U11SYWSE and the E-Switch 100SP1T4B1M51QEH? A: The primary difference is actuator length. The U11SYWSE maintains the original 10.67mm length, while the E-Switch part extends to 16.26mm. Both meet electrical specifications. The E-Switch part has lower electrical life (40,000 cycles vs. 100,000 cycles). Mechanical clearance verification is required for the longer actuator.

Q: Is the Electroswitch A123S1YWQ suitable for applications requiring the exact 5A/120V specification? A: The A123S1YWQ exceeds the specification at 6A/125V, providing operational margin. However, panel cutout dimensions are not specified for this part. Dimensional compatibility must be confirmed before selection. The 60,000-cycle electrical life is lower than the original 100,000-cycle rating.

Q: What compliance certifications should I verify when selecting a substitute? A: All listed substitute parts maintain RoHS compliance. The U11SYWME and 100SP1T4B1M51QEH are ROHS3 compliant. REACH status varies: U11SYWME is REACH unaffected, U11SYWSE is REACH affected, 100SP1T4B1M51QEH is REACH unaffected, and A123S1YWQ shows vendor undefined status. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: Are there any mechanical constraints I should consider when substituting these parts? A: Yes. All parts share the 1/4-40 bushing thread and 6.35mm circular panel cutout (except A123S1YWQ, which does not specify cutout dimensions). Actuator length varies: U11SYWME and U11SYWSE at 10.67mm, E-Switch at 16.26mm, and Electroswitch at 10.41mm. Verify clearance in your mechanical assembly before final selection.

Q: What is the inventory status for each substitute part? A: U11SYWSE has 988 units in stock, 100SP1T4B1M51QEH has 925 units, and A123S1YWQ has 904 units. All substitute parts are available in active production status, ensuring long-term supply continuity compared to the obsolete U11SYWME.