A108SYCB Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The A108SYCB is a toggle switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Single Pole Double Throw (SPDT) panel mount switch with momentary operation. This component is rated for 0.4VA at 20V AC/DC and features a standard round actuator with PC pin termination. The A108SYCB is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

A108SYCB

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1086A108SYCB Datasheet

Current PartRFQ

6-1825136-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 13516-1825136-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A108SYCB is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Parameters:

• Circuit configuration (SPDT)
• Current rating (0.4VA AC/DC)
• Voltage ratings (20V AC and 20V DC)
• Switch function (On-Mom momentary operation)
• Electrical life (6,000 cycles)

Mechanical Parameters:

• Mounting type (Panel Mount)
• Actuator type (Standard Round)
• Actuator length (10.41mm)
• Termination style (PC Pin)
• Panel cutout dimensions (Circular - 6.35mm Dia)
• Bushing thread specification (1/4-40)

The substitute part 6-1825136-2 maintains full equivalence across all electrical and mechanical parameters specified for the A108SYCB, with the exception of product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The A108SYCB is an obsolete component from the Gemini A series. The substitute part 6-1825136-2 provides direct functional and mechanical equivalence while offering the following advantages:

Product Status: The 6-1825136-2 maintains active product status with TE Connectivity ALCOSWITCH Switches, ensuring ongoing availability and supply chain continuity.

Compliance Certifications: The 6-1825136-2 is ROHS3 compliant, addressing regulatory requirements for new designs and systems subject to RoHS directives. The original A108SYCB is RoHS non-compliant.

Operating Temperature Range: The 6-1825136-2 extends the lower operating temperature limit to -30°C, compared to -20°C for the A108SYCB, providing enhanced performance in cold environment applications.

Electrical and Mechanical Equivalence: All electrical parameters (circuit configuration, current rating, voltage ratings, switch function, and electrical life) and mechanical parameters (mounting type, actuator specifications, termination style, and panel cutout dimensions) are identical between the two parts.

For applications requiring RoHS compliance or extended temperature operation, the 6-1825136-2 is the appropriate selection. For legacy system maintenance where RoHS compliance is not required, the 6-1825136-2 remains functionally equivalent and is the recommended choice due to active product status.

Frequently Asked Questions (FAQ)

Q: Can the 6-1825136-2 be used as a direct replacement for the A108SYCB in existing designs?

A: Yes. The 6-1825136-2 is electrically and mechanically equivalent to the A108SYCB. All electrical parameters (SPDT circuit, 0.4VA rating, 20V AC/DC) and mechanical parameters (panel mount, 10.41mm actuator, PC pin termination, 6.35mm circular cutout, 1/4-40 bushing thread) are identical. The substitute part can be installed without circuit or mechanical modifications.

Q: What is the difference in operating temperature range between these parts?

A: The A108SYCB operates from -20°C to 85°C. The 6-1825136-2 operates from -30°C to 85°C. The substitute part extends the lower temperature limit by 10°C, providing enhanced performance in cold environment applications.

Q: Does the 6-1825136-2 meet RoHS compliance requirements?

A: Yes. The 6-1825136-2 is ROHS3 compliant. The original A108SYCB is RoHS non-compliant. For applications subject to RoHS directives, the 6-1825136-2 is the appropriate selection.

Q: Are there packaging differences between the A108SYCB and 6-1825136-2?

A: The A108SYCB is supplied in standard packaging. The 6-1825136-2 is supplied in bulk packaging. Both parts are identical in form, fit, and function. Packaging selection depends on order quantity and inventory management requirements.

Q: What is the product status of each part?

A: The A108SYCB is classified as obsolete. The 6-1825136-2 is classified as active. Active product status ensures ongoing availability, technical support, and supply chain continuity from TE Connectivity ALCOSWITCH Switches.

Q: Are the electrical life ratings identical?

A: Yes. Both the A108SYCB and 6-1825136-2 are rated for 6,000 electrical cycles, providing equivalent reliability and operational lifespan.

Q: What termination style is used on both parts?

A: Both parts use PC pin termination, ensuring compatibility with standard printed circuit board mounting and soldering processes.