Omron D4B-3571N Equivalent & Substitute Parts

Part Overview

The Omron D4B-3571N is a snap action DPST switch rated for 10A at 120V AC and 6A at 30V DC, featuring a roller plunger actuator and chassis mount configuration with screw terminals. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement. The D4B-N series provides functionally equivalent alternatives that maintain electrical and mechanical compatibility while offering improved availability.

Substiute Parts

D4B-3571N

Omron Automation and SafetyIn Stock: 945D4B-3571N Datasheet

Current PartRFQ

D4B-2571N

Omron Automation and SafetyIn Stock: 939D4B-2571N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the D4B-3571N is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part D4B-2571N maintains identical specifications in the following key areas:

Circuit configuration (DPST-NO/NC), switch function (On-Mom, Off-Mom), current ratings (10A AC / 6A DC), voltage ratings (120V AC / 30V DC), actuator type (Roller Plunger), mounting configuration (Chassis Mount), termination style (Screw Terminal), ingress protection rating (IP67), operating force (1900gf), release force (200gf), operating position (1.890" / 48.0mm), pretravel (0.080" / 2.0mm), overtravel (0.197" / 5.0mm), operating temperature range (-40°C to 80°C), electrical life (500,000 cycles), and mechanical life (10,000,000 cycles).

Both parts belong to the D4B-N series and are manufactured by Omron Automation and Safety, ensuring design and functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The D4B-2571N serves as the direct substitute for the obsolete D4B-3571N. Both components are RoHS compliant or carry equivalent environmental certifications and share identical electrical and mechanical specifications. The D4B-2571N is currently in active production status, ensuring long-term availability and supply chain continuity. Selection of the D4B-2571N eliminates obsolescence risk while maintaining full functional and physical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the D4B-2571N directly replace the D4B-3571N in existing applications?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including current ratings, voltage ratings, actuator type, mounting configuration, and termination style. Direct substitution is supported without design modification.

Q: What is the primary difference between these two parts?

A: The D4B-3571N is classified as obsolete, while the D4B-2571N is in active production. The D4B-2571N is the recommended choice for new designs and ongoing procurement due to its active status and guaranteed availability.

Q: Are there packaging differences between the D4B-3571N and D4B-2571N?

A: The D4B-3571N is supplied with standard packaging, while the D4B-2571N is supplied in bulk packaging. Both configurations contain identical components suitable for the same applications.

Q: Do both parts meet the same environmental and compliance standards?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity ratings and are suitable for the same operating temperature range (-40°C to 80°C). The D4B-3571N is RoHS compliant; the D4B-2571N carries equivalent environmental certifications.

Q: What are the key mechanical specifications that define substitution compatibility?

A: Operating force (1900gf), release force (200gf), operating position (1.890" / 48.0mm), pretravel (0.080" / 2.0mm), and overtravel (0.197" / 5.0mm) are the critical mechanical parameters. Both parts are identical in these specifications.