APEM 5644THAB9 Toggle Switch SP3T Equivalent & Substitute Parts

Part Overview

The APEM 5644THAB9 is an SP3T (single pole, three throw) toggle switch rated for 6A at 125V AC and 4A at 30V DC. This panel-mount switch features a flatted brass nickel-plated actuator with solder lug termination and is designed for on-on-on switching applications. The part is currently active in production with 949 units in stock. Equivalent parts are identified when component availability changes, supply chain disruptions occur, or design revisions require compatible alternatives that maintain the same electrical and mechanical interface specifications.

Substiute Parts

5644THAB9

APEM Inc.In Stock: 9645644THAB9 Datasheet

Current PartRFQ

7211P3YZQE

C&KIn Stock: 9807211P3YZQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the APEM 5644THAB9 is determined by the following critical parameters:

• Circuit configuration must be SP3T
• Switch function must be On-On-On
• Current rating must meet or exceed 6A AC and 4A DC requirements
• Voltage rating must meet or exceed 125V AC and 30V DC requirements
• Mounting type must be panel mount with compatible panel cutout dimensions
• Termination style must be solder lug
• Actuator type must be compatible with flatted design
• Operating temperature range must encompass -40°C to 85°C minimum
• RoHS3 compliance required for regulatory alignment

The C&K 7211P3YZQE is identified as a substitute part based on matching circuit configuration (SP3T), switch function (On-On-On), mounting type (panel mount), termination style (solder lug), and RoHS3 compliance. Electrical and mechanical parameters fall within acceptable tolerance ranges for direct substitution in most applications.

Parameter Comparison

Engineering Selection Recommendations

The APEM 5644THAB9 remains the primary specification for applications requiring the full rated performance envelope. Both parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment and supply chain viability.

The C&K 7211P3YZQE is suitable as a substitute when the following conditions are met:

• Operating voltage does not exceed 120V AC or 28V DC
• Operating current does not exceed 5A AC
• Operating temperature remains above -30°C
• Electrical cycle life requirement does not exceed 40,000 cycles
• Panel cutout diameter of 6.35mm is compatible with the mechanical design

For applications operating at the upper limits of the APEM specification (125V AC, 6A AC, -40°C lower temperature bound, or 50,000 cycle life), the APEM 5644THAB9 is the required selection.

Frequently Asked Questions (FAQ)

Q: Can the C&K 7211P3YZQE be used in place of the APEM 5644THAB9 in all applications?

A: No. The C&K part has lower AC voltage (120V vs 125V), lower AC current (5A vs 6A), lower DC voltage (28V vs 30V), reduced electrical life (40,000 vs 50,000 cycles), and a narrower operating temperature range (-30°C vs -40°C minimum). Substitution is valid only when the application operates within the C&K part's rated specifications.

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

A: The 0.15mm difference is minor but must be verified against the mechanical panel design. If the panel is drilled to 6.50mm, the C&K part with a 6.35mm cutout requirement may have excessive clearance. Conversely, if the panel is drilled to 6.35mm, the APEM part may not fit. Mechanical compatibility must be confirmed before substitution.

Q: Are both parts suitable for high-temperature applications?

A: Both parts operate to 85°C maximum. The APEM 5644THAB9 extends to -40°C minimum, while the C&K 7211P3YZQE operates to -30°C minimum. For applications below -30°C, only the APEM part is suitable.

Q: What does "Jumper needed to achieve triple throw" mean?

A: Both parts require an external jumper connection to achieve full SP3T (three-throw) functionality. This is a design characteristic of both switches and does not affect substitution compatibility.

Q: Are there any compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The APEM part is REACH Unaffected, while the C&K part is REACH Affected. For applications subject to REACH regulations, verify that the C&K part meets your specific compliance requirements.