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WLCA2-LDK43 Equivalent & Substitute Parts
Part Overview
The WLCA2-LDK43 is a snap action switch manufactured by Omron Automation and Safety, configured as a single-pole double-throw (SPDT) device with a side rotary roller actuator. This switch is rated for 10A at 125V AC and 6A at 30V DC, featuring chassis mount installation with connector termination and IP67 ingress protection. The product is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring identical electrical and mechanical specifications.
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, Roller |
| Mounting Type | Chassis Mount |
| Termination Style | Connector |
| Ingress Protection | IP67 |
| 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 WLCA2-LDK43 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 Roller; Chassis Mount)
- Termination style (Connector)
- Environmental 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 WLCA2-LDK43-N qualifies as a direct substitute based on complete alignment with all specified parameters. Differences in release force (120gf vs. 227gf) and overtravel (70° vs. 30°) do not disqualify substitution, as these represent design refinements within the same product family while maintaining functional equivalence for the defined electrical and mechanical operating envelope.
Parameter Comparison
| Parameter | WLCA2-LDK43 | WLCA2-LDK43-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, Roller | Side Rotary, Roller |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Connector | Connector |
| Ingress Protection | IP67 | IP67 |
| 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 WLCA2-LDK43-N is the designated substitute for the obsolete WLCA2-LDK43. Both components maintain identical electrical specifications and mechanical interface requirements. The WLCA2-LDK43-N carries active product status, ensuring continued availability and supply chain support. The substitute part is RoHS compliant, providing regulatory advantage for applications subject to environmental compliance requirements. Both components share the same ECCN (EAR99) and HTSUS classification, maintaining consistent export and tariff treatment. Selection of the WLCA2-LDK43-N eliminates obsolescence risk while preserving full functional and mechanical compatibility with existing designs.
Frequently Asked Questions (FAQ)
Q: Can the WLCA2-LDK43-N directly replace the WLCA2-LDK43 in existing applications?
A: Yes. Both components are electrically and mechanically equivalent across all specified parameters: SPDT circuit configuration, 10A AC / 6A DC current ratings, 125V AC / 30V DC voltage ratings, side rotary roller actuator, chassis mount configuration, connector termination, and IP67 protection. Mechanical interface and electrical performance are identical.
Q: What is the primary advantage of transitioning to the WLCA2-LDK43-N?
A: The WLCA2-LDK43-N maintains active product status, ensuring reliable supply availability. The component is RoHS compliant, providing regulatory compliance for applications subject to environmental directives. The obsolete WLCA2-LDK43 presents supply discontinuity risk.
Q: Are there packaging differences between these components?
A: The WLCA2-LDK43 is supplied in standard packaging, while the WLCA2-LDK43-N is supplied in bulk packaging. Both configurations contain identical components; packaging selection depends on procurement volume and inventory management requirements.
Q: Do the differences in release force and overtravel affect substitution eligibility?
A: No. The WLCA2-LDK43-N exhibits a release force of 120gf compared to 227gf in the WLCA2-LDK43, and overtravel of 70° versus 30°. These represent design refinements within the same product family. Both components operate within the specified -10°C to 80°C temperature range and deliver identical electrical life (750,000 cycles) and mechanical life (15,000,000 cycles) performance.
Q: Are export and tariff classifications identical?
A: Yes. Both components share ECCN classification EAR99 and HTSUS code 8536.50.9055, maintaining consistent export control and tariff treatment.
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