C&K 7201SYCME Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The C&K 7201SYCME is a panel-mount toggle switch with DPDT (Double Pole Double Throw) configuration rated for 5A at 120V AC and 28V DC. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The switch features epoxy-sealed terminals, a standard round actuator, and PC pin termination suitable for control panel applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	7201SYCME
Manufacturer	C&K
Circuit Configuration	DPDT
Switch Function	On-On
Current Rating	5A (AC/DC)
Voltage Rating - AC	120V
Voltage Rating - DC	28V
Mounting Type	Panel Mount
Panel Cutout Diameter	6.35mm (Circular)
Bushing Thread	1/4-40
Termination Style	PC Pin
Actuator Type	Standard Round
Actuator Length	10.67mm
Operating Temperature Range	-30°C to 85°C
Electrical Life	100,000 Cycles
Product Status	Obsolete
RoHS Status	RoHS Non-Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Primary Compatibility Criteria:

Circuit configuration: DPDT
Switch function: On-On
Current rating: 5A (AC/DC)
Voltage rating: 120V AC / 28V DC minimum
Mounting type: Panel Mount
Panel cutout diameter: 6.35mm
Bushing thread: 1/4-40
Termination style: PC Pin
Operating temperature range: -30°C to 85°C

Secondary Compatibility Criteria (Allowable Variations):

Actuator type: Standard Round or Flat Anti-Rotation acceptable
Actuator length: 10.41mm to 12.30mm acceptable (minor mechanical variation)
Electrical life: 40,000 cycles minimum (lower than original is acceptable for equivalent substitution)
Packaging: Tray or Bulk acceptable

Non-Substitutable Parts: Parts with current ratings of 0.4VA at 20V AC/DC do not meet the 5A / 120V requirement and are excluded from direct substitution.

Parameter Comparison

Part Number	Manufacturer	Circuit	Current Rating	Voltage AC	Voltage DC	Termination	Actuator Type	Actuator Length (mm)	Electrical Life	Product Status	RoHS Status
7201SYCME	C&K	DPDT	5A	120V	28V	PC Pin	Standard Round	10.67	100,000	Obsolete	Non-Compliant
7201SYCSE	C&K	DPDT	5A	120V	28V	PC Pin	Standard Round	10.67	100,000	Active	ROHS3 Compliant
100DP1T1B1M2QEH	E-Switch	DPDT	5A	120V	28V	PC Pin	Standard Round	10.41	40,000	Active	ROHS3 Compliant
100DP1T1B1M3QEH	E-Switch	DPDT	5A	120V	28V	Quick Connect 0.062"	Standard Round	10.41	40,000	Active	ROHS3 Compliant
100DP1T6B15M2QEH	E-Switch	DPDT	5A	120V	28V	PC Pin	Flat Anti-Rotation	12.30	40,000	Active	ROHS3 Compliant
34ADP11B1M2QT	Grayhill Inc.	DPDT	5A	125V	28V	PC Pin	Standard Round	10.41	40,000	Active	ROHS3 Compliant
34ADP11B3M2QT	Grayhill Inc.	DPDT	5A	125V	28V	PC Pin	Standard Round	12.19	40,000	Active	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation: 7201SYCSE (C&K)

The 7201SYCSE is the direct equivalent to the 7201SYCME. It maintains identical electrical specifications (5A, 120V AC, 28V DC), mechanical configuration (panel mount, 6.35mm cutout, 1/4-40 bushing), and termination style (PC Pin). The part is currently in active production status with ROHS3 compliance, addressing the obsolescence of the original part while preserving full compatibility.

Secondary Recommendations: E-Switch 100 Series

The E-Switch 100DP1T1B1M2QEH and 100DP1T6B15M2QEH meet all primary electrical and mechanical compatibility criteria. Both are active production parts with ROHS3 compliance. The 100DP1T1B1M2QEH maintains standard round actuator geometry identical to the original. The 100DP1T6B15M2QEH features a flat anti-rotation actuator with increased length (12.30mm), suitable for applications requiring enhanced actuator stability. Electrical life is rated at 40,000 cycles, lower than the original 100,000 cycles but acceptable for equivalent substitution.

Tertiary Recommendations: Grayhill 34A Series

The 34ADP11B1M2QT and 34ADP11B3M2QT meet all primary electrical and mechanical compatibility criteria. Both are active production parts with RoHS compliance. The 34ADP11B1M2QT features a standard round actuator (10.41mm), while the 34ADP11B3M2QT has a slightly longer actuator (12.19mm). AC voltage rating is 125V, exceeding the original 120V specification. Electrical life is rated at 40,000 cycles.

Termination Consideration:

The 100DP1T1B1M3QEH features quick-connect termination (0.062" / 1.5mm) instead of PC pin. This part is electrically and mechanically compatible but requires circuit board redesign for termination compatibility and is recommended only when quick-connect termination is preferred.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower electrical life (40,000 cycles vs. 100,000 cycles)?

A: Yes. The original 7201SYCME specifies 100,000 electrical cycles. Substitute parts rated at 40,000 cycles represent a reduction in cycle life but remain functionally equivalent for applications where the lower cycle count meets operational requirements. Verify your application's expected switch actuation frequency before selection.

Q: What is the difference between PC Pin and Quick Connect termination?

A: PC Pin termination uses solder-through connections on printed circuit boards. Quick Connect termination uses 0.062" (1.5mm) spade connectors for direct wire attachment without soldering. The 100DP1T1B1M3QEH uses quick-connect termination and requires different circuit board design. Select based on your assembly method.

Q: Are there mechanical differences between substitute parts?

A: Yes. Actuator length varies between 10.41mm and 12.30mm across substitute options. The original 7201SYCME has a 10.67mm actuator. The 100DP1T6B15M2QEH and 34ADP11B3M2QT have longer actuators (12.30mm and 12.19mm respectively), which may affect panel cutout clearance. Verify panel geometry before selection.

Q: Why is the 7201SYCSE recommended as the primary substitute?

A: The 7201SYCSE is manufactured by C&K, the original manufacturer, and maintains identical specifications including actuator length (10.67mm), electrical life (100,000 cycles), and termination style (PC Pin). It provides the highest compatibility assurance with the original design.

Q: Can I use parts rated at 125V AC instead of 120V AC?

A: Yes. The Grayhill 34ADP series parts are rated at 125V AC, which exceeds the original 120V AC requirement. Higher voltage ratings are acceptable for equivalent substitution in applications operating at or below the original voltage specification.

Q: What does RoHS compliance mean for my application?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the part does not contain restricted materials such as lead, mercury, or cadmium. The original 7201SYCME is RoHS non-compliant. All recommended substitutes are ROHS3 or RoHS compliant, meeting current environmental and regulatory standards. Verify your application's compliance requirements before selection.

Q: Are all substitute parts available in the same packaging as the original?

A: No. The original 7201SYCME packaging is listed as "-" (unspecified). The 7201SYCSE is available in Tray packaging. E-Switch 100 series parts are available in Bulk packaging. Grayhill 34A series parts are available in Bulk or unspecified packaging. Confirm packaging requirements with your procurement process.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message