APEM Inc. 5639AB9 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The APEM Inc. 5639AB9 is a panel-mounted toggle switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 6A at 125V AC and 4A at 30V DC. This switch is designed for On-Off-On applications with a flatted brass nickel-plated actuator and solder lug termination. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when designs require component sourcing alternatives due to inventory constraints, supply chain considerations, or design flexibility within specified electrical and mechanical parameters.

Substiute Parts

5639AB9

APEM Inc.In Stock: 11835639AB9 Datasheet

Current PartRFQ

100SP3T6B11M1QEH

E-SwitchIn Stock: 974100SP3T6B11M1QEH Datasheet

SimilarRFQ

7103P3YZQE

C&KIn Stock: 10787103P3YZQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5639AB9 are identified based on the following critical parameters that determine functional equivalence:

• Circuit configuration: SPDT
• Switch function: On-Off-On
• Mounting type: Panel Mount
• Termination style: Solder Lug
• Current rating: Minimum 5A AC/DC
• Voltage rating: Minimum 120V AC, 28V DC
• Panel cutout compatibility: Circular 6.35mm to 6.50mm diameter
• Actuator length: Within 11.40mm to 12.30mm range
• Operating temperature: Minimum -30°C to 85°C
• Electrical life: Minimum 40,000 cycles
• RoHS compliance: ROHS3 Compliant

The identified substitutes meet these core electrical and mechanical requirements while maintaining panel-mount compatibility and solder lug termination.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment for current designs.

The 5639AB9 provides the highest current rating at 6A AC and extended operating temperature range from -40°C, along with the longest electrical life specification at 50,000 cycles. This part is the primary selection for applications requiring maximum current capacity and extended temperature performance.

The E-Switch 100SP3T6B11M1QEH and C&K 7103P3YZQE are functionally equivalent substitutes rated at 5A AC/DC with 120V AC and 28V DC ratings. Both parts support the same SPDT On-Off-On configuration with panel-mount solder lug termination. The E-Switch part features a 1/4-40 bushing thread specification. The C&K part is subject to REACH regulations, while the APEM and E-Switch parts are REACH unaffected.

Panel cutout diameter differences (6.50mm for APEM versus 6.35mm for E-Switch and C&K) require mechanical verification during integration. Actuator length variations (11.40mm to 12.30mm) must be evaluated for panel depth clearance.

Frequently Asked Questions (FAQ)

Q: Can the E-Switch 100SP3T6B11M1QEH or C&K 7103P3YZQE directly replace the APEM 5639AB9 in existing designs?

A: Direct replacement requires verification of three factors: (1) application current demand does not exceed 5A AC/DC, (2) panel cutout diameter accommodates the 6.35mm specification, and (3) actuator length of 12.30mm (E-Switch) or 11.43mm (C&K) fits within available panel depth. The APEM part's higher 6A AC rating and extended -40°C lower temperature limit may be necessary for specific applications.

Q: What are the key electrical differences between these parts?

A: The APEM 5639AB9 is rated for 6A at 125V AC and 4A at 30V DC. The E-Switch and C&K substitutes are rated for 5A at 120V AC and 5A at 28V DC. Applications operating at or near 6A AC or 30V DC require the APEM part. Lower current and voltage applications can use either substitute.

Q: Are there mechanical compatibility concerns?

A: Panel cutout diameter differs between the APEM part (6.50mm) and the substitutes (6.35mm). Existing panel cutouts designed for 6.50mm may require modification for the smaller diameter substitutes. Actuator length variations range from 11.40mm to 12.30mm and must be verified against available panel depth.

Q: What is the difference between the E-Switch and C&K substitute parts?

A: Both parts share identical electrical ratings (5A AC/DC, 120V AC, 28V DC) and SPDT On-Off-On configuration. The E-Switch part includes a 1/4-40 bushing thread specification. The C&K part is subject to REACH regulations, while the E-Switch part is REACH unaffected. Actuator length differs slightly: E-Switch at 12.30mm versus C&K at 11.43mm.

Q: Do all parts meet the same compliance standards?

A: All three parts are ROHS3 compliant and maintain active product status. The C&K 7103P3YZQE is REACH affected, while the APEM and E-Switch parts are REACH unaffected. Regulatory requirements for the target application determine compliance necessity.

Q: What is the electrical life difference, and does it matter?

A: The APEM 5639AB9 is rated for 50,000 electrical cycles, while both substitutes are rated for 40,000 cycles. Applications with high switching frequency or extended operational life requirements should prioritize the APEM part.