RB145C1100 Equivalent & Substitute Parts

Part Overview

The RB145C1100 is a rocker switch manufactured by E-Switch, featuring SPDT (Single Pole Double Throw) configuration with 15A AC rating at 125V. This component is designed for panel mount, snap-in applications with a concave black actuator and quick connect termination. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

RB145C1100

E-SwitchIn Stock: 812RB145C1100 Datasheet

Current PartRFQ

CM103J12S205QA

C&KIn Stock: 1743CM103J12S205QA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RB145C1100 is determined by the following critical parameters:

• Circuit configuration must be SPDT
• Switch function must be On-Off-On
• Voltage rating must be 125V AC minimum
• Current rating must be 15A AC or greater
• Mounting type must be Panel Mount, Snap-In
• Termination style must be Quick Connect - 0.250" (6.3mm)
• Actuator type must be Concave (Curved)
• Actuator color must be Black
• Panel cutout dimensions must accommodate the original 30.00mm x 11.00mm rectangular opening or be compatible within mechanical tolerance
• Approval agency certification must include cULus

The CM103J12S205QA from C&K meets all substitution criteria and is classified as an MFR (Manufacturer) Recommended substitute.

Parameter Comparison

Engineering Selection Recommendations

The CM103J12S205QA is the designated manufacturer-recommended substitute for the obsolete RB145C1100. Both components maintain identical electrical specifications for circuit configuration, voltage rating, and termination style. The substitute provides a higher current rating (16A versus 15A), which is compatible with the original application requirements. The extended operating temperature range (-20°C to 80°C versus -20°C to 65°C) provides additional thermal margin. Both components carry cULus approval and ROHS3 compliance, ensuring regulatory continuity. Panel cutout dimensions differ marginally (30.40mm x 11.20mm versus 30.00mm x 11.00mm), which falls within standard mechanical tolerance for panel mount applications. The substitute is currently in active production status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the CM103J12S205QA directly replace the RB145C1100 in existing applications?

A: Yes. Both components share identical circuit configuration (SPDT), switch function (On-Off-On), voltage rating (125V AC), termination style (Quick Connect - 0.250"), and actuator specifications (Concave, Black). The substitute's higher current rating (16A) and extended temperature range provide enhanced performance margins.

Q: Are there mechanical compatibility concerns with the panel cutout dimensions?

A: The panel cutout dimensions differ by 0.40mm in width and 0.20mm in height. These variations are within standard mechanical tolerances for panel mount snap-in switches and do not present installation issues.

Q: What is the significance of the product status change from Obsolete to Active?

A: The substitute's active production status ensures continued availability, technical support, and supply chain reliability. This eliminates obsolescence risk associated with the original component.

Q: Do both components meet the same regulatory certifications?

A: Yes. Both the RB145C1100 and CM103J12S205QA carry cULus approval and ROHS3 compliance, maintaining regulatory continuity in applications requiring these certifications.

Q: Is the higher current rating of the substitute a concern for the original application?

A: No. A higher current rating indicates the substitute can safely handle the original application's current requirements with additional margin. This is a favorable characteristic in component substitution.