APEM 5239CDB Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The APEM 5239CDB is a panel-mount toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 0.4VA at 20V AC/DC. This switch features a standard round actuator with 10.50mm length, non-illuminated design, and PC pin termination suitable for control panel applications. The part is currently in active production status with 898 units available in inventory. Substitute parts may be required due to supply chain constraints, design revisions, or application-specific voltage requirements that exceed the primary part's 20V rating.

Substiute Parts

5239CDB

APEM Inc.In Stock: 9205239CDB Datasheet

Current PartRFQ

M2013SS1G03

NKK SwitchesIn Stock: 978M2013SS1G03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the APEM 5239CDB is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPDT
• Switch function: On-Off-On
• Current rating: 0.4VA (AC/DC)
• Mounting type: Panel Mount
• Actuator type: Standard Round
• Actuator length: 10.50mm
• Termination style: PC Pin
• Panel cutout dimensions: Circular - 6.50mm Dia
• Bushing thread: 1/4-40

Allowable Variation Parameters:

• Voltage rating: Substitute parts may have equal or higher voltage ratings (minimum 20V)
• Operating temperature range: Substitute parts must cover the application temperature requirements
• Actuator material composition: Variations permitted if mechanical and electrical properties are maintained
• Packaging format: Tray or Bulk acceptable for equivalent functionality

The NKK Switches M2013SS1G03 qualifies as a substitute based on matching all mandatory parameters while providing a higher voltage rating (28V) suitable for applications requiring increased voltage headroom.

Parameter Comparison

Engineering Selection Recommendations

APEM 5239CDB (Primary Selection): The APEM 5239CDB is the recommended primary choice for new designs. This part maintains active production status, ensuring long-term supply availability and consistent manufacturing quality. Full ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for industrial and commercial applications. The -40°C to 85°C operating range provides extended low-temperature performance suitable for outdoor or harsh environment installations.

NKK Switches M2013SS1G03 (Substitute Selection): The NKK M2013SS1G03 serves as a functional equivalent for applications requiring higher voltage margin. The 28V rating accommodates systems with voltage transients or design specifications exceeding 20V. However, this part carries obsolete product status, indicating discontinued manufacturing. Use of this substitute is appropriate only when existing inventory is available and long-term supply is not a project requirement. The -30°C lower temperature limit may restrict use in extreme cold environments compared to the primary part.

Frequently Asked Questions (FAQ)

Q: Can the NKK M2013SS1G03 be used as a direct replacement for the APEM 5239CDB in existing designs?

A: Yes, for applications operating at or below 20V. The M2013SS1G03 maintains identical circuit configuration, current rating, mechanical dimensions, and termination style. The higher 28V rating ensures compatibility with 20V-rated circuits. However, verify that the -30°C minimum operating temperature meets your application requirements, as it is 10°C higher than the APEM part.

Q: What is the significance of the voltage rating difference between these parts?

A: The APEM 5239CDB is rated for 20V maximum, while the NKK M2013SS1G03 is rated for 28V maximum. Both parts function identically in circuits operating at 20V or below. The higher rating on the NKK part provides additional safety margin for applications with voltage transients or future design upgrades requiring higher voltage operation.

Q: Are there packaging differences between these parts?

A: Yes. The APEM 5239CDB is supplied in Tray packaging, while the NKK M2013SS1G03 is supplied in Bulk packaging. Both packaging formats are suitable for manufacturing assembly processes. Confirm packaging requirements with your procurement or assembly department before substitution.

Q: Why is the NKK part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may remain available through authorized distributors, but long-term supply cannot be guaranteed. For new product designs or long-term production runs, the active APEM 5239CDB is the appropriate selection.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the APEM 5239CDB and NKK M2013SS1G03 are ROHS3 compliant and REACH unaffected, satisfying current environmental and hazardous substance regulations for industrial electronics.