RA1066AFX Equivalent & Substitute Parts

Part Overview

The RA1066AFX is a rocker switch manufactured by E-Switch, designed for SPST (Single Pole Single Throw) on-off applications at 10A AC 125V. This component features panel mount, snap-in installation with a concave black actuator and quick connect 0.187" termination. The RA1066AFX is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Circuit Configuration	SPST (Single Pole Single Throw)
Switch Function	On-Off
Current Rating	10A AC
Voltage Rating	125V AC
Mounting Type	Panel Mount, Snap-In
Actuator Type	Concave (Curved)
Actuator Color	Black
Termination Style	Quick Connect - 0.187" (4.7mm)
Panel Cutout Dimensions	Rectangular - 19.20mm x 13.00mm
Mechanical Life	25,000 Cycles
Electrical Life	10,000 Cycles
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the RA1066AFX is determined by the following critical parameters:

Primary Compatibility Criteria:

Circuit configuration must be SPST
Switch function must be On-Off
Current rating must support minimum 10A AC
Voltage rating must be 125V AC
Mounting type must be Panel Mount, Snap-In
Termination style must be Quick Connect - 0.187" (4.7mm)
Panel cutout dimensions must accommodate the rectangular opening

Secondary Compatibility Factors:

Actuator type (Concave/Curved) and color (Black) for mechanical fit and user interface consistency
RoHS3 compliance for regulatory alignment

Two substitute parts meet these criteria with varying degrees of parameter alignment and product status considerations.

Parameter Comparison

Parameter	RA1066AFX (E-Switch)	SRB22A2BBBNN (ZF Electronics)	PRASA1-16F-BB000 (TE Connectivity)
Circuit Configuration	SPST	SPST	SPST
Switch Function	On-Off	On-Off	On-Off
Current Rating (AC)	10A	10A	16A
Voltage Rating (AC)	125V	125V	125V
Mounting Type	Panel Mount, Snap-In	Panel Mount, Snap-In	Panel Mount, Snap-In
Actuator Type	Concave (Curved)	Concave (Curved)	Concave (Curved)
Actuator Color	Black	Black	Black
Termination Style	Quick Connect - 0.187" (4.7mm)	Quick Connect - 0.187" (4.7mm)	Quick Connect - 0.187" (4.7mm)
Panel Cutout Dimensions	Rectangular - 19.20mm x 13.00mm	Rectangular - 19.10mm x 12.90mm	Rectangular - 19.20mm x 13.00mm
Operating Temperature	Not specified	-20°C ~ 65°C	-20°C ~ 85°C
Mechanical Life	25,000 Cycles	100,000 Cycles	100,000 Cycles
Electrical Life	10,000 Cycles	6,000 Cycles	6,000 Cycles
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, VDE	Not specified	ENEC, UL, VDE

Engineering Selection Recommendations

SRB22A2BBBNN (ZF Electronics) provides direct electrical and mechanical compatibility with the RA1066AFX. Both parts share identical current and voltage ratings, circuit configuration, mounting methodology, and termination style. Panel cutout dimensions differ by 0.1mm in each axis, which falls within standard manufacturing tolerances for panel mount applications. The SRB22A2BBBNN is currently in active production status with 5,396 units in stock. RoHS3 compliance is confirmed. This substitute is suitable for direct replacement in applications where the original RA1066AFX specifications are required.

PRASA1-16F-BB000 (TE Connectivity ALCOSWITCH Switches) offers enhanced current capacity at 16A AC, exceeding the original 10A specification. This part maintains identical voltage rating, circuit configuration, mounting type, and termination style. Panel cutout dimensions match the original RA1066AFX exactly. The PRASA1-16F-BB000 is in active production with 4,492 units in stock and carries broader approval agency certifications including ENEC, UL, and VDE. RoHS3 compliance is confirmed. This substitute is applicable in applications where increased current capacity provides design margin or future-proofing benefits.

Both substitute parts are RoHS3 compliant and currently available from active manufacturers, addressing the obsolescence status of the original component.

Frequently Asked Questions (FAQ)

Q: Can the SRB22A2BBBNN directly replace the RA1066AFX without panel modification?

A: The SRB22A2BBBNN has panel cutout dimensions of 19.10mm x 12.90mm compared to the RA1066AFX specification of 19.20mm x 13.00mm. The 0.1mm difference in each dimension is within standard manufacturing tolerances and does not require panel modification for typical applications.

Q: What is the primary difference between the SRB22A2BBBNN and PRASA1-16F-BB000 substitutes?

A: The SRB22A2BBBNN maintains the original 10A current rating, while the PRASA1-16F-BB000 provides 16A current capacity. Both meet all other electrical and mechanical requirements. Selection depends on whether the application requires exact current matching or benefits from increased capacity.

Q: Are both substitute parts RoHS3 compliant?

A: Yes, both the SRB22A2BBBNN and PRASA1-16F-BB000 are RoHS3 compliant, matching the compliance status of the original RA1066AFX.

Q: What are the mechanical life differences between the original and substitute parts?

A: The RA1066AFX specifies 25,000 mechanical cycles. The SRB22A2BBBNN and PRASA1-16F-BB000 both specify 100,000 mechanical cycles, providing extended operational life in both substitutes.

Q: Which substitute part has broader regulatory approvals?

A: The PRASA1-16F-BB000 carries ENEC, UL, and VDE approvals. The original RA1066AFX lists CSA, DEMKO, FIMKO, NEMKO, SEMKO, UL, and VDE approvals. The SRB22A2BBBNN does not specify approval agencies in the provided data.

Q: Are the termination styles identical across all three parts?

A: Yes, all three parts use Quick Connect - 0.187" (4.7mm) termination, ensuring compatibility with existing wiring harnesses and connector systems.

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