BPA08RK DIP Switch SPST 8 Position Piano Actuator Equivalent & Substitute Parts

Part Overview

The BPA08RK is an 8-position DIP switch manufactured by C&K, featuring a piano actuator mechanism with SPST (Single Pole Single Throw) circuit configuration. This component is rated for 100mA at 5VDC and is designed for through-hole, right-angle PCB mounting applications. The BPA08RK is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain functional equivalence across circuit topology, electrical ratings, mechanical form factor, and mounting characteristics.

Substiute Parts

BPA08RK

C&KIn Stock: 699BPA08RK Datasheet

Current PartRFQ

BPA08RB

C&KIn Stock: 1112BPA08RB Datasheet

DirectRFQ

5-1571999-6

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8125-1571999-6 Datasheet

SimilarRFQ

CFP-0802MC

Nidec Components CorporationIn Stock: 1142CFP-0802MC Datasheet

SimilarRFQ

CFP-0812MC

Nidec Components CorporationIn Stock: 1165CFP-0812MC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BPA08RK is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Circuit topology: SPST configuration required
• Position count: 8-position DIP switch
• Current capacity: 100mA minimum
• Voltage rating: 5VDC minimum
• Actuator mechanism: Piano type, raised level
• Mounting configuration: Through-hole, right-angle orientation
• Pitch spacing: 0.100" (2.54mm) full pitch
• Termination: PC pin style

Acceptable Variations:

• Contact material composition (phosphor bronze, beryllium copper, copper alloy)
• Contact finish (tin, gold plating)
• Height above board: ±0.008" tolerance acceptable
• Voltage rating: Higher ratings (6VDC) acceptable for 5VDC applications
• Operating temperature range: Extended ranges acceptable
• RoHS compliance status: Upgrades from non-compliant to compliant acceptable

Non-Substitutable Variations:

• Washable characteristic: Parts specified as non-washable cannot substitute washable designs in washable applications
• Mechanical or electrical life ratings below 1,000 cycles

Parameter Comparison

Engineering Selection Recommendations

BPA08RB (C&K): Direct manufacturer equivalent with active product status. Maintains identical electrical and mechanical specifications to BPA08RK with upgraded contact materials (beryllium copper with gold finish) and RoHS3 compliance. Recommended as primary substitute for new designs and production continuity. Washable characteristic preserved.

5-1571999-6 (TE Connectivity ALCOSWITCH): Cross-manufacturer substitute with active product status and RoHS3 compliance. Maintains 8-position SPST configuration, piano actuator, and through-hole mounting. Electrical and mechanical specifications not fully detailed in available documentation. Washable characteristic confirmed. Suitable for applications where TE Connectivity component qualification exists.

CFP-0802MC and CFP-0812MC (Nidec Components): Cross-manufacturer substitutes with active product status. Both parts maintain 8-position SPST configuration, 100mA current rating, piano actuator, and through-hole right-angle mounting with 0.100" pitch. Voltage rating increased to 6VDC, acceptable for 5VDC applications. Operating temperature range extended to -40°C to 85°C. Critical limitation: non-washable characteristic restricts use in applications requiring washable components. Height above board increased to 0.295" (7.50mm), requiring PCB layout verification. Suitable for non-washable applications with extended temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can BPA08RB directly replace BPA08RK without PCB layout changes?

A: Yes. BPA08RB maintains identical mechanical dimensions, pitch spacing (0.100"), height above board (0.287"), and through-hole right-angle mounting configuration as BPA08RK. No PCB layout modifications required.

Q: Are the Nidec CFP-0802MC and CFP-0812MC suitable for washable assembly processes?

A: No. Both CFP series parts are specified as non-washable, whereas BPA08RK and BPA08RB are washable. If the application requires washable component characteristics, CFP-0802MC and CFP-0812MC are not suitable substitutes.

Q: What is the functional difference between BPA08RK and 5-1571999-6?

A: Both parts maintain SPST 8-position DIP switch configuration with piano actuator and through-hole mounting. The 5-1571999-6 is manufactured by TE Connectivity under the ADPA series. Detailed electrical specifications for the TE part are not fully documented in available data. Functional equivalence is confirmed for circuit topology and mechanical form factor.

Q: Can CFP-0802MC or CFP-0812MC be used in 5VDC circuits?

A: Yes. Both CFP parts are rated for 6VDC, which exceeds the 5VDC requirement of BPA08RK. Higher voltage ratings are acceptable for lower voltage applications. Current rating (100mA) and circuit topology (SPST) remain equivalent.

Q: What is the impact of the increased height above board (0.295" vs 0.287") for CFP series parts?

A: The 0.008" height increase requires verification against PCB clearance specifications and component placement constraints. If the original design has minimal clearance above BPA08RK, CFP-0802MC or CFP-0812MC may require PCB layout modification or component repositioning.

Q: Is BPA08RB recommended over BPA08RK for new designs?

A: Yes. BPA08RB is the active product from the same manufacturer with identical specifications and upgraded RoHS3 compliance. For new designs and production continuity, BPA08RB is the recommended primary substitute.