C&K 7101MDCQE2 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7101MDCQE2 is an active-status toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 120V AC and 28V DC. This panel-mount component features a standard round actuator with PC pin termination and is designed for on-on switching applications. Substitute parts are identified to provide equivalent electrical and mechanical performance for applications requiring alternative sourcing, inventory management, or specific feature requirements while maintaining circuit compatibility and operational parameters.

Substiute Parts

7101MDCQE2

C&KIn Stock: 9277101MDCQE2 Datasheet

Current PartRFQ

100SP1T1B1M2REH

E-SwitchIn Stock: 1284100SP1T1B1M2REH Datasheet

SimilarRFQ

100SP1T1B3M2QEH

E-SwitchIn Stock: 1604100SP1T1B3M2QEH Datasheet

SimilarRFQ

100SP1T2B3M2QEH

E-SwitchIn Stock: 1224100SP1T2B3M2QEH Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7101MDCQE2 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit Configuration: SPDT
• Switch Function: On-On
• Current Rating: 5A (AC/DC)
• Voltage Rating - AC: 120V
• Voltage Rating - DC: 28V
• Mounting Type: Panel Mount
• Actuator Type: Standard Round
• Termination Style: PC Pin
• Panel Cutout Dimensions: Circular - 6.35mm Dia
• Bushing Thread: 1/4-40
• Operating Temperature Range: -30°C to 85°C

Allowable Variation Parameters:

• Actuator Length: May vary within mechanical constraints
• Electrical Life: May be lower than primary part
• Manufacturer: Different manufacturer acceptable
• Features: May differ (e.g., terminal sealing type)
• REACH Status: May differ

The E-Switch 100 series parts listed below meet all mandatory matching parameters and are therefore qualified as direct substitutes for the 7101MDCQE2.

Parameter Comparison

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents (Recommended for Direct Substitution):

The E-Switch 100SP1T1B3M2QEH and 100SP1T2B3M2QEH are complete functional equivalents to the 7101MDCQE2. Both parts match all mandatory electrical parameters (5A at 120V AC / 28V DC), circuit configuration (SPDT On-On), and mechanical specifications (panel mount, 1/4-40 bushing, 6.35mm circular cutout). These parts are active-status products with ROHS3 compliance. Selection between these two substitutes depends on actuator length requirements: the 100SP1T1B3M2QEH provides a 10.41mm actuator length, while the 100SP1T2B3M2QEH offers a shorter 5.08mm actuator length. Both feature epoxy-sealed terminals and maintain the -30°C to 85°C operating temperature range.

Limited Electrical Rating Substitute (Not Recommended for Standard Applications):

The E-Switch 100SP1T1B1M2REH meets all mechanical and circuit requirements but is rated for only 0.4VA at 20V AC/DC. This part is suitable only for low-power applications where the 5A / 120V rating of the primary part is not required. This substitute should be selected only when application power requirements are confirmed to be below 0.4VA at 20V maximum.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and active product status. The E-Switch 100 series parts are REACH Unaffected, whereas the primary 7101MDCQE2 is REACH Affected. All parts share identical ECCN (EAR99) and HTSUS (8536.50.9065) classifications.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch 100SP1T1B1M2REH be used as a direct replacement for the 7101MDCQE2?

A: The 100SP1T1B1M2REH is not a direct replacement for standard applications. While it matches all mechanical specifications and circuit configuration, its electrical rating of 0.4VA at 20V AC/DC is significantly lower than the 7101MDCQE2's 5A at 120V AC / 28V DC rating. Use this part only in applications confirmed to operate below 0.4VA at 20V maximum.

Q: What is the difference between the 100SP1T1B3M2QEH and 100SP1T2B3M2QEH?

A: Both parts are electrically identical with 5A at 120V AC / 28V DC ratings and match all mandatory parameters of the 7101MDCQE2. The primary difference is actuator length: the 100SP1T1B3M2QEH has a 10.41mm actuator, while the 100SP1T2B3M2QEH has a 5.08mm actuator. Select based on panel thickness and actuator protrusion requirements for your application.

Q: Are all substitute parts panel-mount compatible with the original 7101MDCQE2 installation?

A: Yes. All substitute parts share identical panel cutout dimensions (circular 6.35mm diameter) and bushing thread specification (1/4-40), ensuring mechanical compatibility with existing panel installations designed for the 7101MDCQE2.

Q: What is the impact of lower electrical life ratings in the E-Switch substitutes?

A: The E-Switch 100 series parts are rated for 40,000 electrical cycles compared to the 7101MDCQE2's 100,000 cycles. For applications with high switching frequency, evaluate whether the lower cycle rating meets operational lifetime requirements before selecting a substitute.

Q: Do the substitute parts maintain the same operating temperature range?

A: Yes. All substitute parts operate across the identical -30°C to 85°C temperature range as the 7101MDCQE2, ensuring thermal compatibility in the same environmental conditions.

Q: Are there any compliance differences between the primary part and substitutes?

A: All parts are ROHS3 compliant. The primary 7101MDCQE2 is REACH Affected, while the E-Switch substitutes are REACH Unaffected. Both share the same ECCN (EAR99) and HTSUS (8536.50.9065) classifications. Verify REACH compliance requirements for your specific application and region.