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WLCA12 Equivalent & Substitute Parts
Part Overview
The WLCA12 is a snap action switch manufactured by Omron Automation and Safety, configured as a single-pole double-throw (SPDT) device with a 10A AC / 6A DC current rating and 125V AC / 30V DC voltage rating. This switch features a side rotary actuator with adjustable roller, chassis mount configuration, and screw terminal termination, designed for applications requiring IP67-rated dust-tight and waterproof operation.
The WLCA12 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | SPDT (DB/DM) |
| Switch Function | On-Momentary |
| Current Rating (AC) | 10A |
| Current Rating (DC) | 6A |
| Voltage Rating (AC) | 125V |
| Voltage Rating (DC) | 30V |
| Actuator Type | Side Rotary, Adjustable Roller |
| Mounting Type | Chassis Mount |
| Termination Style | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Temperature Range | -10°C to 80°C |
| Electrical Life | 750,000 Cycles |
| Mechanical Life | 15,000,000 Cycles |
Substitute Part Grouping Explanation
Substitution eligibility for the WLCA12 is determined by strict equivalence across the following critical parameters:
- Circuit configuration (SPDT DB/DM topology)
- Switch function (On-Momentary operation)
- Current and voltage ratings (10A AC / 6A DC; 125V AC / 30V DC)
- Actuator type and mounting configuration (Side Rotary, Adjustable Roller; Chassis Mount)
- Termination style (Screw Terminal)
- Ingress protection rating (IP67)
- Operating temperature range (-10°C to 80°C)
- Electrical and mechanical life specifications (750,000 and 15,000,000 cycles respectively)
The WLCA12-N qualifies as a direct substitute based on full alignment with these parameters. Variations in release force, pretravel, differential travel, and overtravel do not disqualify substitution when all primary electrical and mechanical specifications remain equivalent.
Parameter Comparison
| Parameter | WLCA12 | WLCA12-N |
|---|---|---|
| Manufacturer | Omron Automation and Safety | Omron Automation and Safety |
| Circuit Configuration | SPDT (DB/DM) | SPDT (DB/DM) |
| Switch Function | On-Momentary | On-Momentary |
| Current Rating (AC) | 10A | 10A |
| Current Rating (DC) | 6A | 6A |
| Voltage Rating (AC) | 125V | 125V |
| Voltage Rating (DC) | 30V | 30V |
| Actuator Type | Side Rotary, Adjustable Roller | Side Rotary, Adjustable Roller |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Screw Terminal | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof | IP67 - Dust Tight, Waterproof |
| Operating Temperature Range | -10°C to 80°C | -10°C to 80°C |
| Electrical Life | 750,000 Cycles | 750,000 Cycles |
| Mechanical Life | 15,000,000 Cycles | 15,000,000 Cycles |
| Product Status | Obsolete | Active |
| RoHS Status | Vendor Undefined | RoHS Compliant |
Engineering Selection Recommendations
The WLCA12-N is the qualified substitute for the obsolete WLCA12. Both components share identical electrical specifications, mechanical configurations, and operational parameters. The WLCA12-N carries Active product status, ensuring ongoing availability and supply chain support.
The WLCA12-N is RoHS Compliant, providing regulatory advantage over the WLCA12 (Vendor Undefined status). Both components carry identical ECCN (EAR99) and HTSUS (8536.50.9055) classifications.
Selection of the WLCA12-N is appropriate for new designs, production continuity, and replacement applications where the WLCA12 is no longer available.
Frequently Asked Questions (FAQ)
Q: Can the WLCA12-N directly replace the WLCA12 in existing applications?
A: Yes. The WLCA12-N maintains full electrical and mechanical equivalence with the WLCA12 across all critical parameters: circuit configuration, current and voltage ratings, actuator type, mounting configuration, termination style, ingress protection, and operational life specifications.
Q: What are the differences between the WLCA12 and WLCA12-N?
A: The primary differences are product status and regulatory compliance. The WLCA12 is obsolete with vendor-undefined RoHS status, while the WLCA12-N is active and RoHS Compliant. Minor variations exist in release force (227gf vs. 120gf) and overtravel (30° vs. 70°), but these do not affect substitution eligibility.
Q: Are there packaging differences between these parts?
A: The WLCA12 is supplied with unspecified packaging, while the WLCA12-N is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.
Q: What certifications apply to both parts?
A: Both the WLCA12 and WLCA12-N are classified under ECCN EAR99 and HTSUS 8536.50.9055. The WLCA12-N carries RoHS Compliance certification, providing additional regulatory alignment for modern applications.
Q: Is the WLCA12-N suitable for new designs?
A: Yes. The WLCA12-N is classified as Active and carries RoHS Compliance, making it the appropriate choice for new designs requiring SPDT snap action switches with the specified electrical and mechanical characteristics.
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