CWSC11JCACS Rocker Switch - Equivalent & Substitute Parts

Part Overview

The CWSC11JCACS is an illuminated rocker switch manufactured by NKK Switches, configured as a Single Pole Single Throw (SPST) device rated for 9A at 125V AC. This panel-mount, snap-in switch features an LED-illuminated concave actuator with red diffuser and operates across a temperature range of -10°C to 50°C. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where this specific model is no longer available through standard distribution channels.

Substiute Parts

CWSC11JCACS

NKK SwitchesIn Stock: 872CWSC11JCACS Datasheet

Current PartRFQ

CWSB21CACF

NKK SwitchesIn Stock: 1310CWSB21CACF Datasheet

SimilarRFQ

JWS11RAAC

NKK SwitchesIn Stock: 1002JWS11RAAC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWSC11JCACS is determined by the following critical parameters:

Primary Compatibility Criteria:

• Panel cutout dimensions (19.20mm x 12.90mm rectangular)
• Mounting type (Panel Mount, Snap-In)
• Voltage rating (125V AC minimum)
• Current rating (9A AC or higher)
• Switch function (On-Off operation)
• Illumination requirement (LED or Neon)

Identified Substitute Parts:

JWS11RAAC - Partial substitute with current rating limitation. Maintains SPST circuit configuration, identical panel cutout dimensions, and compatible mounting. Current rating reduced to 6A AC, which is below the original 9A specification. Suitable only for applications where actual load current does not exceed 6A. Offers expanded operating temperature range (-25°C to 50°C) and enhanced ingress protection (Dust Proof). Termination style differs (Solder, Quick Connect - 0.187" vs. original Quick Connect - 0.110").

CWSB21CACF - Functional substitute with circuit configuration change. Maintains 9A AC current rating and 125V AC voltage rating with identical panel cutout dimensions and mounting type. Circuit configuration changed from SPST to DPST (Double Pole Single Throw), providing two independent switching circuits. Illumination type changed from LED to Neon with 125 VAC supply. Termination style differs (Quick Connect - 0.187" vs. original Quick Connect - 0.110"). Operating temperature range expanded to -20°C to 85°C. Product status is Active.

Parameter Comparison

Engineering Selection Recommendations

For Direct SPST Replacement with Full Current Rating: CWSB21CACF is the appropriate selection when the application requires the full 9A AC current capacity and can accommodate a DPST circuit configuration. This part is currently in active production status with expanded regulatory approvals (cULus certification). The change from LED to Neon illumination requires circuit modification to supply 125 VAC to the illumination circuit instead of the original 1.95 VDC. The termination connector size change (0.187" vs. 0.110") necessitates harness modification.

For Current-Limited SPST Replacement: JWS11RAAC maintains the original SPST circuit configuration and LED illumination type with compatible 1.8 VDC supply voltage. This selection is limited to applications where the actual load current does not exceed 6A AC. The part offers enhanced environmental protection (Dust Proof ingress rating) and broader regulatory approvals (CSA, UL, VDE). Termination connector size differs, requiring harness modification. Operating temperature range is expanded to -25°C to 50°C.

Both substitute parts maintain identical panel cutout dimensions and snap-in mounting compatibility, eliminating the need for mechanical panel modifications.

Frequently Asked Questions (FAQ)

Q: Can CWSB21CACF directly replace CWSC11JCACS in all applications? A: CWSB21CACF is mechanically and electrically compatible for panel mounting and voltage rating. However, the circuit configuration change from SPST to DPST means the substitute provides two independent switching circuits instead of one. Applications requiring single-circuit switching must ensure the second circuit is either unused or integrated into system logic. The illumination voltage change from 1.95 VDC to 125 VAC requires circuit redesign for the indicator supply.

Q: What is the current limitation of JWS11RAAC? A: JWS11RAAC is rated for 6A AC, compared to the original 9A AC rating. This part is suitable only for applications where the actual load current does not exceed 6A. Applications requiring the full 9A capacity must use CWSB21CACF or source alternative parts.

Q: Are termination connector changes significant? A: Both substitute parts use 0.187" (4.7mm) Quick Connect terminals, while the original CWSC11JCACS uses 0.110" (2.8mm) Quick Connect terminals. Harness connectors must be modified or replaced to accommodate the larger terminal size. This is a mechanical change requiring assembly modification.

Q: Do all parts fit the same panel cutout? A: Yes. All three parts (CWSC11JCACS, JWS11RAAC, and CWSB21CACF) share identical rectangular panel cutout dimensions of 19.20mm x 12.90mm, eliminating the need for panel modification.

Q: What are the regulatory compliance differences? A: CWSC11JCACS carries UL approval. JWS11RAAC carries CSA, UL, and VDE approvals, providing broader international compliance. CWSB21CACF carries cULus approval (combined UL and CSA certification). All three parts are ROHS3 compliant and REACH unaffected.

Q: Can the illumination voltage difference be accommodated? A: The original part uses 1.95 VDC LED illumination. JWS11RAAC uses 1.8 VDC LED illumination, which is compatible with the same low-voltage supply circuit. CWSB21CACF uses 125 VAC Neon illumination, requiring a separate 125 VAC supply circuit independent of the switch control circuit. This represents a significant circuit design change.