BPA04RSB Equivalent & Substitute Parts

Part Overview

The BPA04RSB is a 4-position DIP switch manufactured by C&K, featuring a piano actuator with SPST (Single Pole Single Throw) circuit configuration. This surface mount component is rated for 100mA at 5VDC and is designed for applications requiring reliable switching in compact form factors. The BPA04RSB carries an obsolete product status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

BPA04RSB

C&KIn Stock: 1156BPA04RSB Datasheet

Current PartRFQ

BPA04SB

C&KIn Stock: 2339BPA04SB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BPA04RSB is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST)
• Number of positions (4)
• Current and voltage ratings (100mA, 5VDC)
• Actuator type and mechanical profile (Piano, Raised, Right Angle)
• Mounting and termination characteristics (Surface Mount, Gull Wing)
• Pitch spacing (0.100" / 2.54mm)
• Contact material and finish (Beryllium Copper, Gold)
• Physical dimensions and height above board
• Operating temperature range (-20°C to 85°C)
• Lifecycle ratings (1,000 mechanical and electrical cycles)

The BPA04SB meets all these criteria and is classified as a direct substitute. Both parts are manufactured by C&K within the same BPA series and share identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The BPA04SB is the direct equivalent for the obsolete BPA04RSB. Both components are electrically and mechanically identical across all specified parameters. The primary distinction is product status: BPA04RSB is obsolete while BPA04SB is active and currently in production.

From a compliance perspective, BPA04SB carries ROHS3 certification, representing current regulatory alignment. Both parts maintain REACH Unaffected status and unlimited moisture sensitivity classification (MSL 1), ensuring compatibility with standard manufacturing and storage protocols.

For new designs or ongoing production requiring the BPA04RSB specification, BPA04SB provides full functional equivalence with the advantage of active availability and current compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can BPA04SB be used as a direct replacement for BPA04RSB in existing designs?

A: Yes. Both parts share identical electrical ratings (100mA, 5VDC), circuit configuration (SPST, 4-position), mechanical profile (piano actuator, right angle, gull wing termination), and physical dimensions. No design modifications are required.

Q: What is the primary reason to substitute BPA04RSB?

A: BPA04RSB carries obsolete product status, limiting long-term availability. BPA04SB is the active equivalent from the same manufacturer and series, ensuring continued procurement capability.

Q: Are there packaging differences between these parts?

A: BPA04RSB packaging is listed as standard, while BPA04SB is supplied in tube packaging. This represents a packaging format difference only and does not affect component functionality or performance.

Q: Do both parts meet current regulatory requirements?

A: Both parts are RoHS compliant and REACH unaffected. BPA04SB carries ROHS3 certification, reflecting current regulatory standards. Both maintain MSL 1 (unlimited) moisture sensitivity classification.

Q: Are the mechanical and electrical lifecycles identical?

A: Yes. Both parts are rated for 1,000 mechanical cycles and 1,000 electrical cycles under specified operating conditions.