MB2181SS1W03-CC Equivalent & Substitute Parts

Part Overview

The MB2181SS1W03-CC is a pushbutton switch manufactured by NKK Switches, classified as a 4PDT (four-pole double-throw) standard panel mount switch with rear termination. This component is rated for 6A at 125V AC and 3A at 30V DC, featuring a red round button actuator with PC pin termination and epoxy sealed terminals. The product is currently obsolete, which necessitates identification of functionally equivalent alternatives for ongoing maintenance and repair applications.

Substiute Parts

MB2181SS1W03-CC

NKK SwitchesIn Stock: 934MB2181SS1W03-CC Datasheet

Current PartRFQ

MBN45SS1W03-CC

NKK SwitchesIn Stock: 1170MBN45SS1W03-CC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MB2181SS1W03-CC is determined by the following critical parameters:

• Circuit configuration (4PDT)
• Switch function (On-Mom momentary operation)
• Current and voltage ratings (6A/125V AC; 3A/30V DC)
• Mounting type (Panel Mount, Rear)
• Actuator type and color (Round button, Red)
• Termination style (PC Pin)
• Panel cutout dimensions (Circular 6.50mm)
• Operating temperature range (-30°C to 85°C)
• Mechanical and electrical life specifications

The identified substitute part MBN45SS1W03-CC is manufactured by NKK Switches and maintains compatibility with the electrical and mechanical interface requirements of the original component.

Parameter Comparison

Engineering Selection Recommendations

The MB2181SS1W03-CC is classified as obsolete. The substitute part MBN45SS1W03-CC is manufactured by the same supplier (NKK Switches) and carries an active product status, indicating current availability and ongoing manufacturer support. Both components are from the NKK Switches product line and share the same base part number structure, suggesting functional alignment within the manufacturer's portfolio.

Selection of MBN45SS1W03-CC as a replacement should be based on verification that the unspecified electrical and mechanical parameters match the requirements of the original application. The active status of the substitute part ensures access to current inventory and technical documentation from the manufacturer.

Frequently Asked Questions (FAQ)

Q: Why is the MB2181SS1W03-CC being discontinued? A: The MB2181SS1W03-CC is classified as obsolete by the manufacturer. The MBN45SS1W03-CC represents the current active equivalent from NKK Switches.

Q: What are the key compatibility criteria for substitution? A: Substitution is valid when the replacement part maintains the same circuit configuration (4PDT), switch function (On-Mom), current ratings (6A AC / 3A DC), voltage ratings (125V AC / 30V DC), mounting type (Panel Mount, Rear), termination style (PC Pin), and panel cutout dimensions (Circular 6.50mm Dia).

Q: Is the substitute part RoHS compliant? A: The main part MB2181SS1W03-CC is ROHS3 compliant. Compliance status for MBN45SS1W03-CC is not specified in the provided data and should be confirmed with the manufacturer.

Q: What is the difference between panel mount and bushing mount configurations? A: Panel mount switches are secured directly to a panel surface. Bushing mount switches use a threaded bushing for panel installation. The mounting type affects mechanical installation and should be verified for application compatibility.

Q: Are there inventory considerations for component selection? A: The MB2181SS1W03-CC has 892 pieces in stock (obsolete status). The MBN45SS1W03-CC has 1131 pieces available with active product status, indicating ongoing supply availability.