E101MD1AV2LE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The E101MD1AV2LE is a toggle switch manufactured by C&K, featuring SPDT (Single Pole Double Throw) configuration with 7.5A at 125V AC rating. This through-hole, right-angle vertical mount switch is designed for applications requiring dust and water protection (IP57). The product is currently obsolete, making equivalent and substitute parts necessary for ongoing maintenance, repair, and new design implementations where compatible electrical and mechanical specifications are acceptable.

Substiute Parts

E101MD1AV2LE

C&KIn Stock: 1146E101MD1AV2LE Datasheet

Current PartRFQ

E101MD1AV2RE

C&KIn Stock: 788E101MD1AV2RE Datasheet

DirectRFQ

100SP1T2B2M7QE

E-SwitchIn Stock: 863100SP1T2B2M7QE Datasheet

SimilarRFQ

100SP1T2B2M7RE

E-SwitchIn Stock: 1000100SP1T2B2M7RE Datasheet

SimilarRFQ

100SP1T2B4M7QE

E-SwitchIn Stock: 3808100SP1T2B4M7QE Datasheet

SimilarRFQ

34BWSP12B4M7QT

Grayhill Inc.In Stock: 90334BWSP12B4M7QT Datasheet

SimilarRFQ

A123P41D9AV2B

ElectroswitchIn Stock: 1182A123P41D9AV2B Datasheet

SimilarRFQ

WT123M1D9AV2B

ElectroswitchIn Stock: 754WT123M1D9AV2B Datasheet

SimilarRFQ

WT123M1D9AV2Q

ElectroswitchIn Stock: 1145WT123M1D9AV2Q Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Primary Compatibility Criteria:

• Circuit configuration (SPDT required)
• Switch function (On-On required)
• Mounting type (Through Hole, Right Angle, Vertical required)
• Termination style (PC Pin required)
• Operating temperature range (-30°C to 85°C minimum)
• Electrical life (40,000 cycles minimum)

Electrical Compatibility Criteria:

• Current rating must equal or exceed 7.5A
• AC voltage rating must equal or exceed 125V
• DC voltage rating must equal or exceed 28V

Mechanical Compatibility Criteria:

• Actuator type and length affect panel integration
• Ingress protection rating (IP57 or higher preferred for sealed applications)

Substitute parts are grouped into two categories: direct equivalents (identical electrical and mechanical specifications) and similar alternatives (meeting or exceeding all critical electrical parameters with minor mechanical variations).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

E101MD1AV2RE is the optimal substitute for E101MD1AV2LE. Both parts share identical electrical ratings (7.5A at 125V AC), mechanical configuration (7.62mm actuator length, through-hole right-angle vertical mount), and ingress protection (IP57). The primary distinction is product status: E101MD1AV2RE is active and currently in production, ensuring long-term availability. Both parts are ROHS3 compliant. E101MD1AV2RE is available in bulk packaging with 685 units in stock.

Secondary Substitutes (Electrical Derating Required):

100SP1T2B4M7QE and 100SP1T2B2M7QE (E-Switch) meet the circuit configuration, mounting type, and termination requirements. However, both are rated at 5A AC (versus 7.5A), representing a 33% current derating. AC voltage rating is 120V (versus 125V). These parts are suitable only for applications where the actual operating current does not exceed 5A and where 120V AC operation is acceptable. Both are ROHS3 compliant and active products with high inventory availability (3,727 and 764 units respectively).

34BWSP12B4M7QT (Grayhill Inc.) provides 5A current rating with 125V AC voltage matching, meeting the voltage requirement but requiring current derating. This part offers superior ingress protection (IP67 versus IP57) and extended electrical life (50,000 cycles versus 40,000). Actuator length is 7.60mm, nearly identical to the original 7.62mm. ROHS3 compliant and active status with 812 units in stock.

WT123M1D9AV2Q (Electroswitch) provides 6A at 125V AC, meeting both current and voltage requirements without derating. Actuator length is 7.60mm. Extended electrical life of 60,000 cycles. RoHS compliant with active product status and 1,084 units in stock. Ingress protection rating not specified.

Not Recommended for Direct Substitution:

100SP1T2B2M7RE, A123P41D9AV2B, and WT123M1D9AV2B do not meet the electrical requirements of the original part. These parts are rated at 0.4VA to 0.5VA with maximum voltages of 20V to 28V, representing significant electrical derating unsuitable for 7.5A at 125V applications.

Frequently Asked Questions (FAQ)

Q: Can I use E101MD1AV2RE as a direct replacement for E101MD1AV2LE?

A: Yes. E101MD1AV2RE is a direct equivalent. Both parts have identical electrical ratings (7.5A at 125V AC), mechanical configuration (through-hole right-angle vertical mount with 7.62mm actuator), termination style (PC Pin), and ingress protection (IP57). The primary advantage of E101MD1AV2RE is active product status with current manufacturing and availability.

Q: What does current derating mean when considering E-Switch 100SP1T2B4M7QE?

A: The 100SP1T2B4M7QE is rated at 5A maximum current, while the original E101MD1AV2LE is rated at 7.5A. If your application requires the full 7.5A capacity, this part cannot be used. If your actual operating current is 5A or less, this part is electrically compatible. Verify your circuit's actual current draw before selecting this substitute.

Q: Why is ingress protection rating important for substitution?

A: The original E101MD1AV2LE specifies IP57 (dust protected, waterproof). Substitute parts with lower or unspecified ingress protection ratings may not provide equivalent environmental sealing. If your application requires sealed operation in dusty or wet environments, select substitutes with IP57 or higher ratings. The 34BWSP12B4M7QT offers IP67, providing enhanced protection.

Q: Does actuator length affect mechanical compatibility?

A: Yes. The original part has a 7.62mm actuator length. Substitutes with different actuator lengths (such as 5.08mm in E-Switch parts) may not fit existing panel cutouts or mounting brackets. Verify panel integration requirements before selecting parts with different actuator dimensions. The 34BWSP12B4M7QT and WT123M1D9AV2Q have 7.60mm actuators, nearly identical to the original.

Q: Are all substitute parts RoHS compliant?

A: The E101MD1AV2RE is ROHS3 compliant, matching the original part. E-Switch parts (100SP1T2B4M7QE, 100SP1T2B2M7QE, 100SP1T2B2M7RE) and Grayhill 34BWSP12B4M7QT are ROHS3 compliant. Electroswitch parts (A123P41D9AV2B, WT123M1D9AV2B, WT123M1D9AV2Q) are RoHS compliant. Verify compliance requirements for your specific application or regulatory jurisdiction.

Q: What is the difference between the two E-Switch parts 100SP1T2B4M7QE and 100SP1T2B2M7QE?

A: Both parts are rated identically at 5A and 120V AC with 28V DC, feature the same 5.08mm actuator length, and have 40,000 cycle electrical life. The primary difference is inventory availability: 100SP1T2B4M7QE has 3,727 units in stock versus 764 units for 100SP1T2B2M7QE. Electrical and mechanical specifications are equivalent.

Q: Can WT123M1D9AV2Q replace E101MD1AV2LE without derating?

A: Yes, from an electrical standpoint. WT123M1D9AV2Q is rated at 6A and 125V AC, meeting or exceeding the original 7.5A and 125V requirements. However, verify that the 7.60mm actuator length is compatible with your panel cutout (original is 7.62mm). Ingress protection rating is not specified for this part; if sealed operation is required, confirm environmental protection capability with the manufacturer.