Equivalent & Substitute Parts for C&K 1201M2S3V3LE2 Slide Switch DPDT

Part Overview

The C&K 1201M2S3V3LE2 is a DPDT slide switch rated for 6A at 120V AC and 28V DC, designed for through-hole mounting with gold-plated copper contacts. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The switch features a 4.72mm actuator, polyamide construction, and 40,000 electrical life cycles with RoHS3 compliance.

Substiute Parts

1201M2S3V3LE2

C&KIn Stock: 10611201M2S3V3LE2 Datasheet

Current PartRFQ

1201M2S3V3RE2

C&KIn Stock: 10591201M2S3V3RE2 Datasheet

DirectRFQ

48ASDP1S1V2QAT

Grayhill Inc.In Stock: 93948ASDP1S1V2QAT Datasheet

SimilarRFQ

48ASDP1S1V2RBT

Grayhill Inc.In Stock: 98748ASDP1S1V2RBT Datasheet

SimilarRFQ

48ASDP1S4V2QAT

Grayhill Inc.In Stock: 97248ASDP1S4V2QAT Datasheet

SimilarRFQ

48ASDP1S4V2QBT

Grayhill Inc.In Stock: 113448ASDP1S4V2QBT Datasheet

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MS22BSW13

NKK SwitchesIn Stock: 753MS22BSW13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1201M2S3V3LE2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration: DPDT
• Switch function: On-On
• Current rating: 6A minimum (AC/DC)
• Voltage rating: 120V AC minimum, 28V DC minimum
• Mounting type: Through Hole
• Contact finish: Gold or Silver (both acceptable for electrical performance)
• Termination style: PC Pin
• Operating temperature range: -30°C minimum to 65°C maximum
• RoHS compliance status

Direct Equivalent: The C&K 1201M2S3V3RE2 is a direct equivalent with identical electrical and mechanical specifications, differing only in product status (Active vs. Obsolete) and minor feature documentation.

Similar Substitutes: Grayhill 48ASDP1 series parts meet the core electrical requirements (DPDT, On-On, 5A minimum current, 125V AC, 28V DC) with through-hole mounting. The 48ASDP1S4V2QBT provides the closest match with equivalent current and voltage ratings. NKK Switches MS22BSW13 meets electrical specifications but operates at reduced electrical life (25,000 cycles vs. 40,000 cycles).

Parameter Comparison

Engineering Selection Recommendations

First Choice: C&K 1201M2S3V3RE2 This part is the direct equivalent with identical electrical and mechanical specifications. It maintains the same 6A current rating, 120V AC voltage rating, 4.72mm actuator length, and 40,000 electrical life cycles. The primary advantage is active product status with full availability. RoHS compliance is maintained.

Second Choice: Grayhill 48ASDP1S4V2QBT This through-hole mounted DPDT switch meets core electrical requirements with 5A current rating and 125V AC voltage rating. The 4.66mm actuator length differs from the original, requiring mechanical verification for PCB layout compatibility. Electrical life is reduced to 30,000 cycles. This option is suitable for applications where the lower actuator height and extended temperature range (-30°C to 85°C) provide design advantages.

Third Choice: NKK Switches MS22BSW13 This part meets the 6A current and 125V AC voltage specifications with through-hole mounting. However, it is classified as obsolete and provides only 25,000 electrical life cycles, making it less suitable for long-term production use. The 5.10mm actuator length and silver alloy contacts differ from the original specification.

Not Recommended: Grayhill 48ASDP1S1V2QAT This part features panel mount configuration, which is incompatible with through-hole PCB applications. Although electrical specifications are acceptable, the mounting type mismatch eliminates this option for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the Grayhill 48ASDP1S4V2QBT replace the C&K 1201M2S3V3LE2 in all applications? A: The Grayhill part meets the core electrical requirements (DPDT, On-On, 5A minimum, 125V AC, 28V DC) and through-hole mounting. However, the 4.66mm actuator length differs from the original 4.72mm, requiring verification that PCB hole spacing and mechanical clearances remain compatible. The reduced electrical life (30,000 vs. 40,000 cycles) should be evaluated against application duty cycle requirements.

Q: Why is the C&K 1201M2S3V3RE2 preferred over other substitutes? A: The 1201M2S3V3RE2 is a direct equivalent with identical electrical ratings (6A, 120V AC, 28V DC), mechanical dimensions (4.72mm actuator), and electrical life (40,000 cycles). It maintains the same contact material and finish specifications. The primary advantage is active product status, ensuring long-term availability and supply chain stability.

Q: What is the impact of reduced electrical life in substitute parts? A: The original part specifies 40,000 electrical life cycles. Grayhill 48ASDP1 series parts provide 30,000 cycles, while NKK MS22BSW13 provides 25,000 cycles. For applications requiring frequent switching operations, the reduced cycle life may shorten component service intervals. Applications with lower switching frequency may tolerate this reduction without performance impact.

Q: Are there mounting compatibility issues with substitute parts? A: The Grayhill 48ASDP1S1V2QAT is panel mount only and cannot replace through-hole applications. All other listed substitutes feature through-hole termination compatible with the original PCB footprint. Actuator length variations (4.66mm to 5.10mm) may affect mechanical clearance and should be verified against enclosure design.

Q: Do all substitute parts maintain RoHS compliance? A: Yes. The C&K 1201M2S3V3RE2 maintains RoHS compliance. Grayhill 48ASDP1 series parts are RoHS compliant. NKK MS22BSW13 is RoHS3 compliant. All listed substitutes meet current regulatory requirements for lead-free manufacturing and hazardous substance restrictions.

Q: What contact finish differences exist between substitutes? A: The original part features gold-plated copper contacts. The Grayhill 48ASDP1 series uses silver-plated copper alloy contacts, while NKK MS22BSW13 uses silver-plated silver alloy contacts. Both silver finishes provide acceptable electrical performance for general switching applications. Gold plating offers superior corrosion resistance in high-humidity or corrosive environments; silver finishes are suitable for standard industrial conditions.