TE Connectivity ALCOSWITCH 1571925-3 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1571925-3 is a panel-mounted toggle switch with Single Pole Double Throw (SPDT) configuration, rated for 6A at 125V AC and 4A at 28V DC. This component features a flatted copper alloy actuator with chrome plating, solder lug termination, and epoxy sealed terminals for environmental protection. The switch is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure ongoing component availability for production and field replacement applications.

Substiute Parts

1571925-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10691571925-3 Datasheet

Current PartRFQ

MTF106D

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1243MTF106D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1571925-3 is based on electrical and mechanical parameter equivalence within the TE Connectivity ALCOSWITCH MTF Green series. The substitute part MTF106D maintains identical electrical specifications including SPDT circuit configuration, 6A AC / 4A DC current ratings, 125V AC / 28V DC voltage ratings, and mechanical compatibility through matching panel cutout dimensions (6.40mm circular), bushing thread (1/4-40), actuator length (12.32mm), and termination style (solder lug).

Substitution is valid when the following parameters are matched:

• Circuit configuration (SPDT)
• Current and voltage ratings (6A/125V AC, 4A/28V DC)
• Mounting type (Panel Mount)
• Actuator type and length (Flatted, 12.32mm)
• Termination style (Solder Lug)
• Panel cutout dimensions (Circular 6.40mm Dia)
• Bushing thread specification (1/4-40)
• Operating temperature range (-20°C to 80°C)
• Electrical life rating (80,000 Cycles)

Parameter Comparison

Engineering Selection Recommendations

The MTF106D is the direct active equivalent for the obsolete 1571925-3. Both components are manufactured by TE Connectivity within the MTF Green series and provide identical electrical and mechanical performance across all critical parameters including circuit configuration, current and voltage ratings, panel mounting dimensions, and actuator specifications.

The primary distinction between the main part and substitute is product status: the 1571925-3 is obsolete while the MTF106D is active and currently in production. This transition necessitates component substitution for new designs and ongoing field replacement requirements.

Secondary differences exist in regulatory compliance and material specifications. The MTF106D is classified as RoHS non-compliant and REACH Affected, whereas the 1571925-3 is REACH Unaffected. The actuator material differs (Copper Alloy Chrome Plated versus Brass Nickel Plated), though both materials maintain equivalent electrical and mechanical performance within the specified operating parameters. The MTF106D carries an MSL rating of 1 (Unlimited) compared to the main part's Not Applicable designation.

Selection of MTF106D is appropriate for applications requiring active component availability, production continuity, and compliance with current TE Connectivity product offerings. Electrical and mechanical compatibility is complete across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can MTF106D be used as a direct replacement for 1571925-3 in existing designs?

A: Yes. The MTF106D provides complete electrical and mechanical compatibility. Both components share identical SPDT circuit configuration, 6A/125V AC and 4A/28V DC ratings, panel mount dimensions (6.40mm circular cutout, 1/4-40 bushing thread), flatted actuator (12.32mm length), solder lug termination, and operating temperature range (-20°C to 80°C). No circuit modifications or panel redesign are required.

Q: What are the material differences between 1571925-3 and MTF106D?

A: The actuator material differs. The 1571925-3 uses Copper Alloy with Chrome plating, while the MTF106D uses Brass with Nickel plating. Both material compositions maintain equivalent electrical conductivity and mechanical durability within the specified 80,000 cycle electrical life rating and -20°C to 80°C operating temperature range.

Q: Are there compliance differences between these parts?

A: Yes. The 1571925-3 is REACH Unaffected, while the MTF106D is REACH Affected and RoHS non-compliant. Both components carry the same ECCN (EAR99) and HTSUS (8536.50.9065) classifications. Applications subject to RoHS or REACH compliance requirements must evaluate the MTF106D's regulatory status against project specifications.

Q: What is the significance of the MSL rating difference?

A: The 1571925-3 carries MSL Not Applicable, while the MTF106D is rated MSL 1 (Unlimited). MSL 1 indicates unlimited shelf life without moisture sensitivity concerns. This difference does not affect electrical or mechanical performance and reflects manufacturing process documentation standards rather than component functionality.

Q: Are the electrical specifications identical?

A: Yes. Both components are rated for 6A at 125V AC and 4A at 28V DC, with identical SPDT on-on switching function, 80,000 cycle electrical life, and epoxy sealed terminal construction. Electrical performance is equivalent across all specified parameters.

Q: What packaging differences exist?

A: The 1571925-3 is specified with packaging designation "-" while the MTF106D is supplied in Bulk packaging. This reflects current production and distribution practices for the active MTF106D component.

Q: Is the panel cutout dimension identical?

A: Yes. Both components require a circular panel cutout of 6.40mm diameter with 1/4-40 bushing thread. Panel modifications are not required when substituting MTF106D for 1571925-3.