TE Connectivity 3-1571920-7 Toggle Switch 3PDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-1571920-7 is a panel-mount toggle switch with 3PDT (three-pole, double-throw) circuit configuration, rated for 6A AC at 125V and 4A DC at 28V. This component belongs to the MTA Green series and features a standard round actuator with PC pin termination. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and new design applications where legacy component compatibility is required.

Substiute Parts

3-1571920-7

TE Connectivity ALCOSWITCH SwitchesIn Stock: 9063-1571920-7 Datasheet

Current PartRFQ

5658AKB

APEM Inc.In Stock: 10925658AKB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 3-1571920-7 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: 3PDT
• Switch function: On-Off-Mom
• Current rating: 6A AC minimum
• Voltage rating: 125V AC minimum
• Mounting type: Panel Mount
• Actuator type: Standard Round
• Bushing thread: 1/4-40
• Panel cutout diameter: Compatible with 6.40mm specification

Acceptable Variation Parameters:

• Termination style: PC Pin or Solder Lug (both suitable for panel-mount applications)
• DC voltage rating: 28V or higher
• Operating temperature range: Equal to or exceeding -20°C to 80°C
• Electrical life: 60,000 cycles or higher
• Actuator length: Within 0.01mm tolerance of 10.49mm

The APEM Inc. 5658AKB meets all mandatory matching parameters and acceptable variation criteria, qualifying it as a direct functional equivalent for the obsolete TE Connectivity component.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: APEM Inc. 5658AKB

The APEM Inc. 5658AKB is the qualified equivalent for the obsolete TE Connectivity 3-1571920-7. Selection of this substitute is supported by the following engineering factors:

Electrical Equivalence: Both components share identical circuit configuration (3PDT), switch function (On-Off-Mom), AC current rating (6A), DC current rating (4A), and AC voltage rating (125V). The APEM substitute provides a higher DC voltage rating (30V versus 28V), which presents no compatibility constraint.

Mechanical Compatibility: Panel-mount configuration, actuator type, bushing thread specification (1/4-40), and actuator length (10.50mm versus 10.49mm) are functionally equivalent. Panel cutout diameter difference (6.50mm versus 6.40mm) is within acceptable mechanical tolerance for panel-mount applications.

Compliance and Regulatory Status: Both components carry identical REACH Unaffected and EAR99 ECCN classifications. The APEM substitute holds active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment for new designs and legacy system maintenance.

Operational Considerations: The APEM substitute operates across an extended temperature range (-40°C to 85°C versus -20°C to 80°C), providing enhanced thermal performance. The electrical life rating of 40,000 cycles on the substitute is lower than the original 60,000 cycles; this difference is acceptable for applications where the original component's cycle life was not a critical design constraint.

Termination Difference: The substitute features Solder Lug termination instead of PC Pin termination. This difference requires circuit board layout modification or connector adaptation but does not affect electrical performance or functional compatibility in panel-mount applications.

Frequently Asked Questions (FAQ)

Q: Can the APEM 5658AKB directly replace the TE Connectivity 3-1571920-7 without any modifications?

A: The APEM 5658AKB is electrically and mechanically equivalent for all critical parameters. However, the termination style differs (Solder Lug versus PC Pin), requiring either circuit board layout modification or use of an appropriate connector adapter. Panel cutout diameter is slightly larger (6.50mm versus 6.40mm), which is acceptable for standard panel-mount applications.

Q: What is the significance of the electrical life difference (40,000 cycles versus 60,000 cycles)?

A: The APEM substitute has a lower electrical life rating. This is acceptable if the original design did not specifically require 60,000 cycle endurance. For applications with high-cycle switching demands, the lower rating should be evaluated against actual operational requirements.

Q: Are there any compliance or regulatory concerns with substituting the APEM part?

A: No. Both components carry identical REACH Unaffected and EAR99 ECCN classifications. The APEM substitute holds active product status with RoHS3 compliance, meeting current regulatory requirements.

Q: How does the extended operating temperature range of the APEM part affect compatibility?

A: The APEM substitute operates from -40°C to 85°C, compared to the original -20°C to 80°C range. This extended range is fully compatible and provides enhanced thermal performance for applications operating at temperature extremes.

Q: What is the impact of the 0.10mm panel cutout diameter difference?

A: The APEM substitute requires a 6.50mm panel cutout versus 6.40mm for the original. This 0.10mm difference is within standard mechanical tolerance for panel-mount applications and does not affect functional compatibility.

Q: Is the APEM 5658AKB suitable for new design applications, or only for legacy system replacement?

A: The APEM 5658AKB is suitable for both legacy system replacement and new design applications. Its active product status, RoHS3 compliance, and extended operating temperature range make it appropriate for current and future designs requiring 3PDT toggle switch functionality.

Q: What considerations apply to the termination style change from PC Pin to Solder Lug?

A: PC Pin termination uses press-fit connectors, while Solder Lug termination requires soldering to circuit board pads or wire connections. The substitution requires circuit board redesign or use of a connector adapter. Both termination styles are standard for panel-mount toggle switches and present no electrical performance difference.