NKK Switches A23KH DPDT Rocker Switch Equivalent & Substitute Parts

Part Overview

The NKK Switches A23KH is an active-status DPDT rocker switch rated for 0.4VA at 28V AC/DC, designed for through-hole, right-angle mounting applications. This component features process-sealed construction with PC pin termination and supports 100,000 mechanical cycles and 50,000 electrical cycles. The A23KH remains in active production with full inventory availability. Substitute parts may be required due to component obsolescence, supply constraints, or application-specific mounting or actuator preferences.

Substiute Parts

A23KH

NKK SwitchesIn Stock: 1001A23KH Datasheet

Current PartRFQ

34CMDP32B2M6RT

Grayhill Inc.In Stock: 115634CMDP32B2M6RT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A23KH is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: DPDT (Double Pole Double Throw)
• Current rating: 0.4VA (AC/DC)
• Voltage rating: Minimum 28V AC and 28V DC
• Mounting type: Through Hole, Right Angle
• Termination style: PC Pin
• Operating temperature range: -30°C to 85°C or broader
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Actuator type (rocker vs. toggle) may differ if mechanical interface accommodates the application
• Switch function (On-On vs. On-Off-On) may vary based on circuit requirements
• Mechanical and electrical life ratings may exceed the original specification
• Sealing method (process sealed vs. epoxy sealed) represents acceptable construction variation

The Grayhill Inc. 34CMDP32B2M6RT qualifies as a substitute based on matching DPDT circuit, 0.4VA current rating, through-hole right-angle mounting, PC pin termination, and ROHS3 compliance. However, the voltage rating of 20V AC/DC is lower than the A23KH specification of 28V, requiring application-level voltage verification before substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the NKK Switches A23KH and Grayhill Inc. 34CMDP32B2M6RT maintain active product status with full ROHS3 compliance and CSA/UL approvals. Selection between these components depends on application voltage requirements and operational cycle expectations.

The A23KH is specified for 28V operation and supports 50,000 electrical cycles. The 34CMDP32B2M6RT operates at 20V maximum and provides 30,000 electrical cycles. If the application circuit operates at or above 20V but does not exceed 28V, voltage margin analysis is required before substitution. If the application requires operation above 20V, the A23KH remains the only qualified option from this substitute list.

Actuator type differences (rocker arm vs. standard round toggle) require mechanical interface verification with the panel cutout and user interaction requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can the Grayhill 34CMDP32B2M6RT replace the NKK A23KH in a 28V circuit?

A: The 34CMDP32B2M6RT is rated for 20V maximum. Direct substitution in a 28V circuit exceeds the component's voltage specification and is not permitted. If the application circuit operates at 20V or below, substitution is permissible after verification of all other parameters.

Q: What is the difference between On-On and On-Off-On switch functions?

A: On-On switches maintain a stable connection in both positions with no neutral state. On-Off-On switches include a center neutral position between two active positions. The A23KH provides On-On functionality, while the 34CMDP32B2M6RT provides On-Off-On. Circuit design must accommodate the functional difference.

Q: Are the PC pin terminations compatible between these parts?

A: Yes. Both components use PC pin termination style, ensuring compatible PCB footprints and soldering processes.

Q: Does the lower electrical life rating of the 34CMDP32B2M6RT affect substitution eligibility?

A: The 34CMDP32B2M6RT provides 30,000 electrical cycles versus the A23KH's 50,000 cycles. If the application requires more than 30,000 electrical cycles, the 34CMDP32B2M6RT does not meet the operational requirement. Applications within the 30,000-cycle limit may proceed with substitution after voltage verification.

Q: Are both components suitable for the same operating temperature range?

A: Yes. Both the A23KH and 34CMDP32B2M6RT operate across -30°C to 85°C, ensuring thermal compatibility.

Q: What packaging is available for these components?

A: Both components are supplied in bulk packaging. The A23KH has 897 pieces in stock; the 34CMDP32B2M6RT has 1099 pieces in stock.