APEM Inc. 13445A Pushbutton Switch DPDT Equivalent & Substitute Parts

Part Overview

The APEM Inc. 13445A is an active production pushbutton switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 4A at 125V AC and 30V DC. This panel-mount rear component operates with an On-Momentary switch function and plunger actuator. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical parameters align within acceptable tolerances for the application requirements.

Substiute Parts

13445A

APEM Inc.In Stock: 83413445A Datasheet

Current PartRFQ

8221MDZGE

C&KIn Stock: 7508221MDZGE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 13445A is determined by the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: DPDT
• Switch function: On-Momentary
• Mounting type: Panel Mount, Rear
• Actuator type: Plunger for Cap
• Termination style: Solder Lug
• RoHS compliance status

Allowable Parameter Variations:

• Current rating: Substitute must meet or exceed 4A requirement
• Voltage rating (AC): Substitute must meet or exceed 125V requirement
• Voltage rating (DC): Substitute must meet or exceed 30V requirement
• Panel cutout diameter: Tolerance within mechanical design constraints
• Operating temperature range: Must encompass or match the -40°C to 85°C specification
• Mechanical and electrical life: Substitute values must support application duty cycle

The C&K 8221MDZGE qualifies as a substitute based on matching circuit, function, mounting, actuator, and termination parameters. However, current and voltage ratings are reduced, requiring application-level verification that the lower electrical specifications remain acceptable for the intended use case.

Parameter Comparison

Engineering Selection Recommendations

Both the APEM Inc. 13445A and C&K 8221MDZGE maintain active production status and ROHS3 compliance, supporting long-term supply chain viability. Selection between these parts depends on application electrical and environmental requirements:

13445A Selection Criteria:

• Applications requiring 4A current capacity
• Systems operating at 125V AC or 30V DC nominal levels
• Extended temperature operation from -40°C to 85°C
• Mechanical duty cycles approaching 150,000 operations

8221MDZGE Selection Criteria:

• Applications with current requirements of 1A or lower
• Systems operating at 120V AC or 28V DC nominal levels
• Operating temperature range within -30°C to 75°C
• Electrical life requirements up to 60,000 cycles
• Tactile feedback feature requirement

Both parts share identical circuit topology, switch function, mounting configuration, and termination method, ensuring functional compatibility when electrical and thermal specifications align with application demands.

Frequently Asked Questions (FAQ)

Q: Can the C&K 8221MDZGE directly replace the APEM 13445A in all applications?

A: Direct replacement is limited to applications where current draw does not exceed 1A and operating voltages remain within 120V AC and 28V DC. Panel cutout diameter tolerance and operating temperature range must also be verified for the specific installation.

Q: What is the significance of the 0.15mm panel cutout diameter difference?

A: The 13445A requires a 6.50mm circular cutout while the 8221MDZGE requires 6.35mm. This difference may affect panel fit depending on manufacturing tolerances. Verify panel hole dimensions before substitution.

Q: Why does the C&K part have lower current and voltage ratings?

A: Different manufacturers design switches for different application classes. The C&K 8221MDZGE is optimized for lower-power applications. Selection must match the actual electrical requirements of the circuit.

Q: Are both parts suitable for long-term supply chain use?

A: Yes. Both parts maintain active production status and ROHS3 compliance, supporting continued availability and regulatory compliance.

Q: What does the On-Momentary switch function mean?

A: The switch closes its contacts when pressed and returns to the open position when released. This function is identical between both parts.

Q: How do packaging differences affect component selection?

A: The 13445A ships in bulk packaging while the 8221MDZGE ships in tray packaging. This affects handling and storage but does not impact electrical or mechanical performance.

Q: What is the operating temperature significance?

A: The 13445A operates from -40°C to 85°C while the 8221MDZGE operates from -30°C to 75°C. Applications requiring operation below -30°C or above 75°C must use the 13445A.