Littelfuse 58328-01 Rocker Switch SPST 25A 12V - Equivalent & Substitute Parts

Part Overview

The Littelfuse 58328-01 is a panel-mount rocker switch with SPST (Single Pole Single Throw) configuration rated for 25A DC at 12V. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The switch features illuminated operation with incandescent red indication, quick-connect termination, and IP66 ingress protection suitable for sealed panel applications.

Substiute Parts

58328-01

Littelfuse Inc.In Stock: 98658328-01 Datasheet

Current PartRFQ

GRB114A2NABA1

CW IndustriesIn Stock: 1181GRB114A2NABA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 58328-01 is determined by strict equivalence across the following electrical and mechanical parameters:

• Circuit configuration must remain SPST
• Current rating must be 25A DC minimum
• Voltage rating must be 12V DC minimum
• Mounting method must be panel mount with snap-in capability
• Termination must be quick-connect 0.250" (6.3mm) style
• Panel cutout dimensions must accommodate the original rectangular opening (36.83mm x 21.08mm nominal tolerance)

The CW Industries GRB114A2NABA1 meets these core substitution criteria. While secondary parameters such as actuator geometry, illumination type, and ingress protection rating differ, these variations do not prevent functional substitution when the primary electrical and mechanical requirements are satisfied.

Parameter Comparison

Engineering Selection Recommendations

The CW Industries GRB114A2NABA1 is the qualified substitute for the obsolete Littelfuse 58328-01 based on electrical and mechanical parameter equivalence. The substitute part offers the following advantages:

• Active product status ensures continued availability and supply chain reliability
• ROHS3 compliance satisfies modern regulatory requirements where the original part does not
• Enhanced ingress protection rating (IP67 versus IP66) provides superior environmental sealing
• Documented mechanical and electrical life specifications support design validation
• Panel cutout dimensions (37.00mm x 21.10mm) are within acceptable tolerance of the original specification (36.83mm x 21.08mm) for standard panel mounting applications

The substitute part does not include incandescent illumination; applications requiring illuminated indication must address this functional difference through alternative design approaches or component selection.

Frequently Asked Questions (FAQ)

Q: Can the CW Industries GRB114A2NABA1 be directly installed in place of the Littelfuse 58328-01?

A: Yes, for the electrical and mechanical interface. The quick-connect termination, 25A DC 12V rating, and panel snap-in mounting are identical. Panel cutout dimensions are within standard manufacturing tolerance. However, the substitute part lacks illumination; if illuminated indication is required, this must be addressed separately.

Q: What is the significance of the panel cutout dimension difference (36.83mm vs. 37.00mm)?

A: The 0.17mm difference in length and 0.02mm difference in width fall within standard rectangular opening tolerances for panel-mount switches. Existing panel cutouts designed for the original part will accommodate the substitute without modification.

Q: Does the higher ingress protection rating (IP67) of the substitute create any compatibility issues?

A: No. IP67 (dust tight, waterproof) is a superset of IP66 (dust tight, water resistant). The enhanced sealing provides equal or better environmental protection and does not affect electrical or mechanical compatibility.

Q: Why does the substitute part not include illumination?

A: The CW Industries GRB114A2NABA1 is specified without illumination features. If illuminated indication is functionally required, alternative substitute parts must be evaluated or external illumination solutions must be implemented.

Q: Is the RoHS compliance difference significant for substitution?

A: RoHS3 compliance of the substitute part satisfies modern regulatory requirements. The original part's non-compliance status is a primary reason for substitution in new designs or systems subject to current environmental regulations.