TE Connectivity ALCOSWITCH 1825137-8 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1825137-8 is a toggle switch with Single Pole Double Throw (SPDT) configuration, rated for 0.4VA at 20V AC/DC. This component features a through-hole, right-angle vertical mounting design with a standard round actuator and epoxy sealed terminals. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The substitute part 1-1825137-0 provides functional equivalence within the Gemini A series while maintaining electrical and mechanical compatibility parameters.

Substiute Parts

1825137-8

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11021825137-8 Datasheet

Current PartRFQ

1-1825137-0

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11571-1825137-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between 1825137-8 and 1-1825137-0 is valid based on the following criteria:

Electrical Equivalence: Both parts maintain identical circuit configuration (SPDT), current rating (0.4VA AC/DC), voltage ratings (20V AC/20V DC), and switch function (On-Off-On). These parameters define the electrical load-carrying capability and switching behavior required by the circuit.

Mechanical Compatibility: Both parts share the same actuator type (standard round), actuator length (12.19mm), and termination style (PC Pin). These parameters ensure physical and electrical interface compatibility with existing PCB designs and panel layouts.

Environmental and Operational Specifications: Both parts operate across the identical temperature range (-30°C to 85°C) and maintain the same electrical life rating (6,000 cycles), ensuring equivalent reliability and durability in the target application environment.

Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying current regulatory requirements for hazardous substance restrictions.

Primary Difference: The key distinction between these parts is mounting type: 1825137-8 uses through-hole right-angle vertical mounting, while 1-1825137-0 uses panel mount configuration with a 1/4-40 threaded bushing and 6.35mm circular panel cutout. This difference requires mechanical redesign of the mounting interface but does not affect electrical functionality or performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Part Replacement: The 1-1825137-0 is the manufacturer-recommended substitute for the obsolete 1825137-8. Both parts are manufactured by TE Connectivity within the same Gemini A series and maintain identical electrical specifications, ensuring direct functional equivalence.

Compliance Considerations: Both parts maintain ROHS3 compliance. The substitute part 1-1825137-0 carries REACH Affected status, whereas the main part lists REACH status as vendor undefined. For applications subject to REACH regulations, the substitute part provides explicit compliance documentation.

Product Status Impact: The main part 1825137-8 is classified as obsolete, indicating discontinued production and limited availability. The substitute part 1-1825137-0 maintains active product status with confirmed inventory availability (1,056 pieces), ensuring long-term supply chain reliability for new designs and production continuity.

Mounting Interface Redesign: Selection of the substitute part requires mechanical redesign of the mounting interface. The through-hole right-angle vertical configuration of 1825137-8 must be replaced with panel mount integration using the 1/4-40 threaded bushing and 6.35mm circular panel cutout specified for 1-1825137-0. This change affects PCB layout and mechanical assembly procedures but does not impact electrical circuit design or performance.

Frequently Asked Questions (FAQ)

Q: Can 1-1825137-0 be used as a direct replacement for 1825137-8 without circuit modifications?

A: The electrical circuit design requires no modifications. Both parts maintain identical SPDT configuration, current rating (0.4VA), voltage ratings (20V AC/DC), and switch function (On-Off-On). However, the mounting interface differs: 1825137-8 uses through-hole right-angle vertical mounting, while 1-1825137-0 uses panel mount configuration. Mechanical redesign of the mounting structure is required.

Q: What are the key electrical parameters that must match for substitution?

A: The critical electrical parameters are circuit configuration (SPDT), current rating (0.4VA AC/DC), voltage ratings (20V AC/DC), and switch function (On-Off-On). Both parts match these specifications exactly, confirming electrical compatibility.

Q: Does the substitute part meet the same environmental operating requirements?

A: Yes. Both 1825137-8 and 1-1825137-0 operate across the identical temperature range of -30°C to 85°C and maintain the same electrical life rating of 6,000 cycles. Environmental performance is equivalent.

Q: What is the significance of the different product status classifications?

A: The main part 1825137-8 is classified as obsolete, indicating discontinued production and limited inventory availability. The substitute part 1-1825137-0 maintains active product status with confirmed ongoing production and inventory availability (1,056 pieces in stock). For new designs and long-term production, the active substitute part ensures supply chain continuity.

Q: Are there regulatory compliance differences between these parts?

A: Both parts maintain ROHS3 compliance. The substitute part 1-1825137-0 explicitly lists REACH Affected status, providing clear regulatory documentation. The main part lists REACH status as vendor undefined. For applications requiring REACH compliance verification, the substitute part offers explicit compliance confirmation.

Q: What mounting modifications are necessary when switching from 1825137-8 to 1-1825137-0?

A: The main part uses through-hole right-angle vertical mounting for direct PCB insertion. The substitute part uses panel mount configuration with a 1/4-40 threaded bushing and requires a 6.35mm diameter circular panel cutout. The PCB layout must be redesigned to accommodate panel-mounted integration rather than through-hole insertion.

Q: Do both parts use the same termination method?

A: Yes. Both 1825137-8 and 1-1825137-0 use PC Pin termination style, ensuring electrical connection compatibility with existing PCB designs. The termination interface remains unchanged despite the different mounting configurations.

Q: What is the actuator compatibility between these parts?

A: Both parts feature identical actuator specifications: standard round type with 12.19mm length and brass nickel-plated material. The actuator interface and user interaction characteristics are equivalent, ensuring consistent operational feel and panel integration.