TE Connectivity ALCOSWITCH 2-1571920-3 Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 2-1571920-3 is a panel-mount toggle switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 6A AC at 125V and 4A DC at 28V. This component features a momentary-off-momentary (Mom-Off-Mom) switch function with epoxy-sealed solder lug terminals and operates across a temperature range of -20°C to 80°C.

The 2-1571920-3 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this legacy component is specified or currently deployed in operational systems.

Substiute Parts

2-1571920-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 7052-1571920-3 Datasheet

Current PartRFQ

MTA206S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1081MTA206S Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2-1571920-3 are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for a part to function as a direct substitute:

Critical Matching Parameters:

• Circuit configuration (DPDT)
• Current rating (6A AC minimum, 4A DC minimum)
• Voltage rating (125V AC minimum, 28V DC minimum)
• Mounting type (Panel Mount)
• Termination style (Solder Lug)
• Actuator type and length (Standard Round, 10.49mm)
• Panel cutout dimensions (Circular 6.40mm diameter)
• Bushing thread specification (1/4-40)
• Operating temperature range (-20°C to 80°C minimum)
• Series compatibility (MTA Green)

The MTA206S qualifies as a substitute based on these parameters. While the switch function differs (Mom-On-Mom versus Mom-Off-Mom), the electrical and mechanical specifications remain compatible for panel-mount applications requiring DPDT switching at the specified voltage and current ratings.

Parameter Comparison

Engineering Selection Recommendations

The MTA206S serves as an active substitute for the obsolete 2-1571920-3. Selection of the MTA206S is supported by the following factors:

Product Status: The MTA206S maintains active product status with TE Connectivity ALCOSWITCH Switches, ensuring ongoing availability and supply chain continuity. The 2-1571920-3 is obsolete and no longer manufactured.

Electrical Compatibility: Both parts share identical electrical specifications: DPDT circuit, 6A AC at 125V, and 4A DC at 28V. These ratings ensure functional equivalence in applications designed for the original part.

Mechanical Compatibility: Panel-mount dimensions, bushing thread specification (1/4-40), actuator geometry (Standard Round, 10.49mm), and solder lug termination are identical. Direct mechanical substitution is supported without panel modification.

Regulatory Compliance: The MTA206S is ROHS3 compliant, meeting current environmental and material restriction standards. The original part's compliance status is not specified.

Operational Parameters: Operating temperature range (-20°C to 80°C), epoxy-sealed terminals, and series designation (MTA Green) are identical, supporting equivalent performance in deployed systems.

Functional Difference: The MTA206S employs Mom-On-Mom switch function, whereas the 2-1571920-3 uses Mom-Off-Mom. This difference requires circuit-level evaluation to confirm functional compatibility with the application's control logic and safety requirements.

Material Variation: Actuator material differs (Copper Alloy, Chrome Plated versus Brass, Nickel Plated). Both materials are suitable for the specified operating environment and electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can the MTA206S directly replace the 2-1571920-3 in existing applications?

A: Mechanical and electrical substitution is supported. The MTA206S matches all critical parameters: DPDT circuit, 6A AC at 125V, 4A DC at 28V, panel-mount configuration, 1/4-40 bushing thread, and solder lug termination. However, the switch function differs (Mom-On-Mom versus Mom-Off-Mom). Circuit-level compatibility must be confirmed before deployment.

Q: What is the significance of the switch function difference between these parts?

A: The 2-1571920-3 uses Mom-Off-Mom function, where the switch returns to an off position when released. The MTA206S uses Mom-On-Mom function, where the switch returns to an on position when released. The application's control logic and safety design must accommodate this functional difference.

Q: Are the panel cutout dimensions identical?

A: Yes. Both parts require a circular 6.40mm diameter panel cutout and use a 1/4-40 bushing thread. No panel modification is required for mechanical substitution.

Q: What is the difference in actuator material, and does it affect performance?

A: The 2-1571920-3 features a Copper Alloy actuator with Chrome plating. The MTA206S features a Brass actuator with Nickel plating. Both materials are suitable for the specified operating temperature range (-20°C to 80°C) and electrical ratings (6A AC, 4A DC). Material selection does not affect electrical or thermal performance within the specified parameters.

Q: Is the MTA206S available in the same packaging as the 2-1571920-3?

A: The 2-1571920-3 packaging specification is not provided. The MTA206S is supplied in bulk packaging. Packaging requirements should be confirmed with the supplier based on application needs.

Q: What compliance certifications apply to the MTA206S?

A: The MTA206S is ROHS3 compliant and REACH affected. The original 2-1571920-3 is REACH unaffected, with RoHS status not specified. Applications subject to ROHS3 or REACH requirements should confirm the MTA206S meets regulatory obligations.

Q: Are both parts rated for the same voltage and current specifications?

A: Yes. Both parts are rated for 6A AC at 125V and 4A DC at 28V. Electrical substitution is supported for applications within these ratings.

Q: What is the electrical life specification for the MTA206S?

A: The electrical life specification for the MTA206S is not provided in the available data. The 2-1571920-3 specifies 60,000 cycles. Electrical life requirements should be confirmed with the manufacturer for the substitute part.