APEM 5664THAB Toggle Switch DP3T Equivalent & Substitute Parts

Part Overview

The APEM 5664THAB is a panel-mount toggle switch with DP3T (double-pole triple-throw) circuit configuration, rated for 6A at 125V AC and 4A at 30V DC. This switch is designed for applications requiring three distinct switching positions with maintained contact. The product is currently active and in stock with 858 units available. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, application redesign, or supply chain considerations.

Key Parameters

Parameter	Value
Manufacturer Part Number	5664THAB
Manufacturer	APEM Inc.
Circuit Configuration	DP3T
Switch Function	On-On-On
Current Rating (AC)	6A
Current Rating (DC)	4A
Voltage Rating (AC)	125V
Voltage Rating (DC)	30V
Mounting Type	Panel Mount
Actuator Type	Standard Round
Termination Style	Solder Lug
Panel Cutout Diameter	6.50mm
Bushing Thread	1/4-40
Operating Temperature Range	-40°C to 85°C
Electrical Life	30,000 Cycles
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the APEM 5664THAB is determined by the following critical parameters:

Mandatory Matching Criteria:

Circuit configuration: DP3T
Switch function: On-On-On
Mounting type: Panel Mount
Termination style: Solder Lug
Bushing thread: 1/4-40

Allowable Variation Parameters:

Current rating: Substitute must meet or exceed the application requirement (minimum 6A AC or 4A DC)
Voltage rating: Substitute must meet or exceed the application requirement (minimum 125V AC or 30V DC)
Panel cutout diameter: Tolerance within mechanical assembly constraints
Actuator length: Minor variations acceptable within panel depth limitations
Operating temperature range: Substitute must cover the application operating envelope
Electrical life: Substitute must meet or exceed cycle requirements

The C&K 7411SYZQE qualifies as a substitute based on matching circuit, function, mounting, and termination specifications, with acceptable variations in current and voltage ratings within typical application margins.

Parameter Comparison

Parameter	APEM 5664THAB	C&K 7411SYZQE	Compatibility Notes
Circuit Configuration	DP3T	DP3T	Identical
Switch Function	On-On-On	On-On-On	Identical
Current Rating (AC)	6A	5A	Substitute rated 1A lower; verify application current draw
Current Rating (DC)	4A	5A	Substitute rated higher; acceptable
Voltage Rating (AC)	125V	120V	Substitute rated 5V lower; acceptable for most applications
Voltage Rating (DC)	30V	28V	Substitute rated 2V lower; acceptable for most applications
Mounting Type	Panel Mount	Panel Mount	Identical
Actuator Type	Standard Round	Standard Round	Identical
Actuator Length	10.50mm	10.67mm	Difference of 0.17mm; verify panel depth clearance
Termination Style	Solder Lug	Solder Lug	Identical
Panel Cutout Diameter	6.50mm	6.35mm	Difference of 0.15mm; verify panel hole tolerance
Bushing Thread	1/4-40	1/4-40	Identical
Operating Temperature Range	-40°C to 85°C	-30°C to 85°C	Substitute has narrower low-temperature range; verify application requirements
Electrical Life	30,000 Cycles	40,000 Cycles	Substitute rated higher; acceptable
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical

Engineering Selection Recommendations

APEM 5664THAB Selection Criteria:

Primary choice when AC current requirements exceed 5A
Required for applications operating below -30°C
Preferred when voltage margins below 125V AC or 30V DC are unacceptable
Active product status with established supply chain

C&K 7411SYZQE Selection Criteria:

Suitable for applications with AC current requirements of 5A or less
Acceptable for operating temperatures above -30°C
Appropriate when voltage requirements are 120V AC or 28V DC or lower
Higher electrical life rating (40,000 cycles) beneficial for high-cycle applications
ROHS3 compliant; REACH affected status requires compliance verification for regulated markets

Both parts maintain identical circuit configuration, switch function, mounting type, and termination style, ensuring functional interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can the C&K 7411SYZQE replace the APEM 5664THAB in all applications?

A: No. The C&K substitute has lower AC current rating (5A vs. 6A) and narrower operating temperature range (-30°C to 85°C vs. -40°C to 85°C). Verify that your application current does not exceed 5A AC and that minimum operating temperature does not fall below -30°C.

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

A: The 0.15mm difference affects panel hole tolerance. Verify that your panel hole accommodates the 6.35mm diameter of the C&K part. Existing panels drilled for 6.50mm may require re-drilling or use of a larger bushing.

Q: Are both parts mechanically interchangeable?

A: Both parts share identical bushing thread (1/4-40), mounting type (panel mount), and termination style (solder lug). The actuator length difference of 0.17mm is negligible for most applications but should be verified against panel depth constraints.

Q: What does REACH Affected status mean for the C&K part?

A: REACH Affected indicates the part may contain substances subject to REACH regulations. Compliance verification is required for applications in regulated markets. The APEM part is REACH Unaffected.

Q: Can I use the C&K part in a -40°C environment?

A: No. The C&K 7411SYZQE is rated only to -30°C minimum. The APEM 5664THAB is required for applications requiring -40°C operation.

Q: What is the electrical life difference between these parts?

A: The APEM part is rated for 30,000 cycles; the C&K part for 40,000 cycles. For high-cycle applications, the C&K part provides extended service life.

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