APEM Inc. 5639AB16 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The APEM Inc. 5639AB16 is an SPDT toggle switch rated for 6A at 125V AC and 4A at 30V DC. This panel-mount switch features a standard round actuator with solder lug termination and is designed for on-off-on switching applications. The part is currently active in production with 1126 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

5639AB16

APEM Inc.In Stock: 12195639AB16 Datasheet

Current PartRFQ

7103MYZQE

C&KIn Stock: 9527103MYZQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5639AB16 are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Circuit configuration: SPDT
• Switch function: On-Off-On
• Mounting type: Panel Mount
• Termination style: Solder Lug
• Panel cutout diameter: 6.35mm to 6.50mm (circular)
• Bushing thread: 1/4-40

Electrical Compatibility Parameters:

• AC current rating: minimum 5A (5639AB16 rated 6A)
• AC voltage rating: minimum 120V (5639AB16 rated 125V)
• DC current rating: minimum 4A
• DC voltage rating: minimum 28V (5639AB16 rated 30V)

Environmental and Compliance Parameters:

• Operating temperature range: -30°C to 85°C minimum
• RoHS3 compliance required
• Epoxy sealed terminals

The C&K 7103MYZQE meets all primary substitution criteria and falls within acceptable electrical parameter ranges for most applications requiring the 5639AB16.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (APEM 5639AB16): Use when maximum electrical ratings and extended operating temperature range (-40°C minimum) are required. This part offers the highest current capacity at AC (6A) and the widest temperature specification. ROHS3 compliance and active production status support long-term availability.

Substitute Part (C&K 7103MYZQE): The C&K 7103MYZQE is suitable for applications where the following conditions are met:

• Operating temperature does not fall below -30°C
• AC current requirement does not exceed 5A
• DC voltage does not exceed 28V
• AC voltage does not exceed 120V
• Mechanical panel cutout tolerance accommodates 6.35mm diameter
• Actuator length of 5.08mm is compatible with panel thickness and clearance requirements
• Electrical life requirement does not exceed 40,000 cycles

Both parts maintain ROHS3 compliance and feature identical circuit configuration, switch function, mounting type, and termination style. Selection between these parts depends on the specific electrical load, environmental conditions, and mechanical constraints of the application.

Frequently Asked Questions (FAQ)

Q: Can the C&K 7103MYZQE directly replace the APEM 5639AB16 in all applications?

A: No. The C&K 7103MYZQE has lower electrical ratings (5A AC vs. 6A AC, 120V AC vs. 125V AC, 28V DC vs. 30V DC) and a narrower operating temperature range (-30°C to 85°C vs. -40°C to 85°C). Substitution is valid only when the application operates within the C&K part's electrical and environmental specifications.

Q: What is the significance of the panel cutout diameter difference (6.50mm vs. 6.35mm)?

A: The 0.15mm difference in panel cutout diameter is within typical mechanical tolerance ranges for panel-mount switches. However, the panel must accommodate the smaller 6.35mm cutout of the C&K part. Existing panels designed for the 6.50mm cutout may require modification or use of a larger bushing.

Q: How does the actuator length difference affect compatibility?

A: The APEM part has a 5.50mm actuator length while the C&K part has a 5.08mm actuator length. This 0.42mm difference may affect tactile feedback, panel aesthetics, or clearance in confined spaces. Verify that the shorter actuator does not create accessibility or operational issues in the target application.

Q: Are there electrical load limitations when using the C&K 7103MYZQE as a substitute?

A: Yes. The C&K part is rated for 5A AC (versus 6A AC for the APEM part) and 40,000 electrical cycles (versus 50,000 for the APEM part). Applications requiring sustained 6A AC loads or exceeding 40,000 switching cycles should use the primary APEM part.

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

A: Both parts are ROHS3 compliant. The APEM part is REACH Unaffected while the C&K part is REACH Affected. Verify REACH compliance requirements for your specific application and end-use region.

Q: What is the minimum operating temperature consideration for substitution?

A: The APEM 5639AB16 operates from -40°C to 85°C, while the C&K 7103MYZQE operates from -30°C to 85°C. If your application requires operation below -30°C, the APEM part is required.