Equivalent & Substitute Parts for 47DWMSP1R1V2RT

Part Overview

The 47DWMSP1R1V2RT is an SPDT rocker switch manufactured by Grayhill Inc., rated for 0.4VA at 20V (AC/DC). This through-hole mounted switch features a concave black actuator with PC pin termination and IP67 ingress protection. The product is active and ROHS3 compliant with an electrical life rating of 30,000 cycles. Substitute parts are identified when equivalent electrical and mechanical specifications are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

47DWMSP1R1V2RT

Grayhill Inc.In Stock: 100447DWMSP1R1V2RT Datasheet

Current PartRFQ

A12K1B-EA

NKK SwitchesIn Stock: 1012A12K1B-EA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 47DWMSP1R1V2RT is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Circuit configuration must be SPDT
• Switch function must be On-On
• Current rating must be 0.4VA (AC/DC)
• Voltage rating must meet or exceed 20V (AC/DC)
• Operating temperature range must encompass -30°C to 85°C

Mechanical Compatibility Requirements:

• Mounting type must be Through Hole
• Actuator type must be Concave (Curved)
• Actuator color must be Black
• Termination style must be PC Pin

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) required

The substitute part A12K1B-EA from NKK Switches meets all electrical and mechanical compatibility criteria. The substitute features a higher voltage rating (28V AC/DC), which provides operational margin above the 20V requirement. Both parts share identical circuit configuration, current rating, mounting type, actuator specifications, and termination style.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 47DWMSP1R1V2RT

The 47DWMSP1R1V2RT remains the specified component when IP67 ingress protection is a circuit design requirement. This part is active, ROHS3 compliant, and carries epoxy sealed terminals for enhanced environmental protection. Selection is appropriate for applications requiring dust-tight and waterproof operation.

Substitute Part: A12K1B-EA

The A12K1B-EA from NKK Switches is electrically and mechanically compatible for applications where IP67 protection is not required. This substitute provides higher voltage margin (28V versus 20V) and extended electrical life (50,000 cycles versus 30,000 cycles). The substitute is active, ROHS3 compliant, and carries CSA and UL approvals. Selection is appropriate when supply availability of the primary part is constrained or when the higher electrical life specification provides design margin.

Both parts are REACH unaffected and classified under ECCN EAR99 and HTSUS 8536.50.9065.

Frequently Asked Questions (FAQ)

Q: Can A12K1B-EA replace 47DWMSP1R1V2RT in all applications?

A: A12K1B-EA is electrically and mechanically compatible for SPDT On-On switching applications at 0.4VA and 20V (AC/DC) or lower. However, if the circuit design requires IP67 ingress protection, the 47DWMSP1R1V2RT is the specified choice. The substitute does not specify IP67 rating.

Q: What is the voltage margin difference between these parts?

A: The 47DWMSP1R1V2RT is rated for 20V (AC/DC). The A12K1B-EA is rated for 28V (AC/DC). Both parts operate safely at 20V. The substitute provides 8V additional voltage margin above the 20V requirement.

Q: Are there differences in electrical life between these parts?

A: Yes. The 47DWMSP1R1V2RT specifies 30,000 electrical cycles. The A12K1B-EA specifies 50,000 electrical cycles. For applications requiring extended cycle life, the substitute provides higher endurance specification.

Q: Do both parts have identical mechanical life ratings?

A: The 47DWMSP1R1V2RT does not specify mechanical life. The A12K1B-EA specifies 100,000 mechanical cycles. When mechanical life data is required for design validation, the substitute provides this specification.

Q: Are both parts RoHS3 compliant?

A: Yes. Both 47DWMSP1R1V2RT and A12K1B-EA are ROHS3 compliant and REACH unaffected.

Q: What certifications does each part carry?

A: The 47DWMSP1R1V2RT does not list approval agencies. The A12K1B-EA carries CSA and UL approvals. For applications requiring specific third-party certifications, verify against circuit design requirements.

Q: Are the through-hole mounting dimensions identical?

A: Both parts use through-hole mounting with PC pin termination. Panel cutout dimensions are not specified in the provided data. Verify mechanical drawings with manufacturers for exact footprint compatibility.

Q: Can these parts be used interchangeably on the same PCB?

A: Electrical and mechanical compatibility is confirmed for SPDT On-On switching at the specified ratings. Physical footprint verification is required before PCB layout finalization. Consult manufacturer datasheets for exact pin spacing and mounting hole dimensions.