MB2011SS1W03/U Equivalent & Substitute Parts

Part Overview

The MB2011SS1W03/U is a pushbutton switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuit configuration with a standard plunger actuator and panel mount rear installation. This component is rated for 6A at 125V AC and 3A at 30V DC, with PC pin termination and epoxy sealed terminals. The product is currently obsolete, making identification of equivalent and substitute parts essential for system maintenance, repair, and component sourcing in legacy applications.

Substiute Parts

MB2011SS1W03/U

NKK SwitchesIn Stock: 847MB2011SS1W03/U Datasheet

Current PartRFQ

MB2011SS1W03/CUL-N987

NKK SwitchesIn Stock: 900MB2011SS1W03/CUL-N987 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MB2011SS1W03/U is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Circuit configuration (SPDT)
• Switch function (On-Mom momentary operation)
• Current rating minimum 6A at 125V AC and 3A at 30V DC
• Voltage rating minimum 125V AC and 30V DC

Mechanical Compatibility Criteria:

• Mounting type (Panel Mount, Rear)
• Actuator type (Plunger for Cap)
• Termination style (PC Pin)
• Panel cutout dimensions (Circular 6.50mm Dia)
• Operating temperature range (-30°C to 85°C)

Compliance & Certification Criteria:

• RoHS3 compliance
• MSL 1 rating

The substitute part MB2011SS1W03/CUL-N987 maintains compatibility across all critical electrical and mechanical parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The MB2011SS1W03/CUL-N987 is the designated substitute for the obsolete MB2011SS1W03/U. Both components are manufactured by NKK Switches and maintain identical electrical ratings, mechanical specifications, and panel mounting requirements. The substitute part is currently in active production status with confirmed inventory availability (864 pcs), whereas the original part is obsolete with limited remaining stock (758 pcs).

Both parts comply with ROHS3 requirements and carry MSL 1 moisture sensitivity ratings, ensuring equivalent environmental performance in storage and deployment. The substitute part is suitable for direct replacement in applications requiring SPDT momentary pushbutton switches with 6A/125V AC or 3A/30V DC ratings and rear panel mount installation.

Frequently Asked Questions (FAQ)

Q: Can MB2011SS1W03/CUL-N987 be used as a direct replacement for MB2011SS1W03/U?

A: Yes. Both parts share identical electrical ratings (6A/125V AC, 3A/30V DC), circuit configuration (SPDT), switch function (On-Mom), mounting type (Panel Mount, Rear), actuator type (Plunger for Cap), termination style (PC Pin), and panel cutout dimensions (Circular 6.50mm Dia). The substitute is a direct functional equivalent.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. MB2011SS1W03/U is obsolete, while MB2011SS1W03/CUL-N987 is active production. The suffix "/CUL-N987" indicates certification or packaging variant designation. Both parts maintain equivalent electrical and mechanical specifications.

Q: Are there any compliance or certification differences?

A: Both parts comply with ROHS3 requirements and carry MSL 1 moisture sensitivity ratings. No compliance or certification differences exist between the two parts.

Q: What packaging is available for the substitute part?

A: MB2011SS1W03/CUL-N987 is available in bulk packaging with 864 pcs currently in stock.

Q: Can these parts be used interchangeably in legacy systems?

A: Yes. The substitute part maintains all critical electrical and mechanical parameters required for operation in systems originally designed for the MB2011SS1W03/U. Panel cutout dimensions, mounting configuration, and electrical ratings are identical.