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WLCA12-LD Equivalent & Substitute Parts
Part Overview
The WLCA12-LD is an Omron Automation and Safety snap action switch with SPDT (DB/DM) configuration, rated for 10A at 125V AC and 6A at 30V DC. This component features a side rotary adjustable roller actuator with chassis mount termination and IP67 ingress protection. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring this switch specification.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | WLCA12-LD |
| Manufacturer | Omron Automation and Safety |
| Series | WL |
| Product Status | Obsolete |
| Circuit Configuration | SPDT (DB/DM) |
| Switch Function | On-Mom |
| 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
The WLCA12-LD-N qualifies as a direct substitute based on the following critical parameters that determine functional equivalence:
Electrical Parameters: Both parts maintain identical current ratings (10A AC / 6A DC) and voltage ratings (125V AC / 30V DC), ensuring compatibility with existing circuit designs and power supply specifications.
Mechanical Configuration: Both parts feature the same SPDT (DB/DM) circuit configuration, On-Mom switch function, side rotary adjustable roller actuator, chassis mount installation, and screw terminal termination. These parameters ensure mechanical and electrical interchangeability within the same application context.
Environmental Specifications: Both parts provide IP67 ingress protection and operate across the identical temperature range (-10°C to 80°C), maintaining environmental performance requirements.
Lifecycle Characteristics: Both parts deliver 750,000 electrical cycles and 15,000,000 mechanical cycles, meeting durability requirements for equivalent service life.
Key Differentiators: The WLCA12-LD-N represents an active product status alternative, with minor variations in release force (120gf versus 227gf) and overtravel (70° versus 30°), which do not affect core substitution eligibility but may influence application-specific performance characteristics.
Parameter Comparison
| Parameter | WLCA12-LD | WLCA12-LD-N |
|---|---|---|
| Manufacturer | Omron Automation and Safety | Omron Automation and Safety |
| Product Status | Obsolete | Active |
| Circuit Configuration | SPDT (DB/DM) | SPDT (DB/DM) |
| Switch Function | On-Mom | On-Mom |
| 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 Force | 1360gf | 1360gf |
| Pretravel | 15° | 15° |
| Differential Travel | 12° | 12° |
| 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 |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8536.50.9055 | 8536.50.9055 |
Engineering Selection Recommendations
The WLCA12-LD-N is the designated substitute for the obsolete WLCA12-LD. Selection of the WLCA12-LD-N is based on the following engineering criteria:
Product Status: The WLCA12-LD-N maintains active product status with current manufacturing support, ensuring long-term availability and supply chain reliability compared to the obsolete WLCA12-LD.
Regulatory Compliance: The WLCA12-LD-N is RoHS Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The WLCA12-LD carries undefined REACH status, presenting potential compliance uncertainty.
Electrical and Mechanical Equivalence: Both parts maintain identical electrical ratings, circuit configurations, and mechanical specifications across all critical parameters, ensuring direct functional substitution without circuit redesign.
Packaging Consideration: The WLCA12-LD-N is supplied in bulk packaging, whereas the WLCA12-LD packaging specification is undefined. Bulk packaging accommodates standard procurement workflows for active production environments.
Frequently Asked Questions (FAQ)
Q: Can the WLCA12-LD-N directly replace the WLCA12-LD in existing applications?
A: Yes. Both parts share identical electrical ratings (10A AC / 6A DC, 125V AC / 30V DC), circuit configuration (SPDT), actuator type (side rotary adjustable roller), mounting method (chassis mount), and termination style (screw terminal). The parts are mechanically and electrically interchangeable.
Q: What are the differences between the WLCA12-LD and WLCA12-LD-N?
A: The primary differences are product status (obsolete versus active), release force (227gf versus 120gf), overtravel specification (30° versus 70°), regulatory compliance documentation (undefined REACH versus REACH Unaffected), and RoHS status (undefined versus compliant). Electrical and mechanical core specifications remain identical.
Q: Does the difference in release force affect substitution eligibility?
A: Release force is an operational characteristic that influences actuator response behavior but does not affect core electrical or mechanical substitution criteria. Applications sensitive to release force characteristics should evaluate this parameter against specific operational requirements.
Q: Does the difference in overtravel affect substitution eligibility?
A: Overtravel is an operational characteristic that influences actuator travel range but does not affect core electrical or mechanical substitution criteria. Applications with specific overtravel requirements should evaluate this parameter against design specifications.
Q: What is the significance of the WLCA12-LD-N active product status?
A: Active product status indicates current manufacturing support, documented supply chain availability, and ongoing compliance with regulatory standards. This status ensures long-term component availability for new designs and replacement applications.
Q: Are there packaging differences between these parts?
A: The WLCA12-LD-N is supplied in bulk packaging. The WLCA12-LD packaging specification is not defined in available documentation. Bulk packaging is standard for active production components and accommodates typical procurement requirements.
Q: Do both parts meet the same environmental specifications?
A: Yes. Both parts provide IP67 ingress protection (dust tight, waterproof) and operate across the identical temperature range (-10°C to 80°C), ensuring equivalent environmental performance.
Q: What is the electrical life expectancy for both parts?
A: Both the WLCA12-LD and WLCA12-LD-N are rated for 750,000 electrical cycles, providing equivalent service life under normal operating conditions.
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