TE Connectivity ALCOSWITCH 1825153-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1825153-2 is a DIP slide switch with SPST (Single Pole Single Throw) configuration, rated for 0.4VA at 20VAC/DC. This component features a 4-position through-hole, right-angle design with gold-plated copper alloy contacts and a standard slide actuator. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

1825153-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8721825153-2 Datasheet

Current PartRFQ

KAS2104ET

E-SwitchIn Stock: 2689KAS2104ET Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1825153-2 is based on the following critical parameters that must align across alternative components:

Mandatory Compatibility Parameters:

• Circuit configuration: SPST
• Number of positions: 4
• Mounting type: Through hole, right angle
• Actuator type: Slide (standard)
• Pitch: 0.100" (2.54mm)
• Termination style: PC pin

Electrical Operating Range: The substitute part must operate within or exceed the voltage and current specifications of the original component. The 1825153-2 operates at 20VAC/DC with 0.4VA capacity.

Physical Form Factor: Both components must maintain compatible board-level dimensions and mounting footprints to ensure direct replacement without PCB redesign.

The E-Switch KAS2104ET meets these core substitution criteria while offering enhanced electrical life ratings and active product status.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 1825153-2 is classified as obsolete. The E-Switch KAS2104ET is an active product with current manufacturing support and availability. For new designs or production continuity, the KAS2104ET provides a viable alternative with equivalent form factor and circuit configuration.

Compliance and Certifications: Both components share identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory alignment. The KAS2104ET carries RoHS3 compliance, providing additional environmental standards adherence.

Electrical Performance: The KAS2104ET operates at 24VDC with 25mA capacity, which is compatible with applications designed for the 1825153-2's 20VAC/DC, 0.4VA specification. The substitute part's voltage and current ratings support the original component's operational envelope.

Mechanical Durability: The KAS2104ET provides doubled mechanical and electrical life ratings (2,000 cycles versus 1,000 cycles), offering enhanced reliability for high-cycle applications.

Temperature Operating Range: The KAS2104ET extends the lower temperature limit to -40°C compared to the 1825153-2's -30°C, providing broader environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the KAS2104ET directly replace the 1825153-2 on existing PCBs?

A: Yes. Both components share identical mounting type (through hole, right angle), pitch (0.100"), termination style (PC pin), and circuit configuration (SPST, 4-position). No PCB redesign is required for physical substitution.

Q: What are the electrical differences between these components?

A: The 1825153-2 is rated for 20VAC/DC at 0.4VA, while the KAS2104ET is rated for 24VDC at 25mA. The KAS2104ET's specifications are compatible with applications designed for the original component's electrical envelope.

Q: Why does the KAS2104ET have different current and voltage ratings?

A: The ratings reflect different design specifications and contact materials. The 1825153-2 uses copper alloy contacts, while the KAS2104ET uses phosphor bronze. Both are suitable for low-signal switching applications with the specified electrical parameters.

Q: Are there packaging differences between these parts?

A: The 1825153-2 is supplied in standard packaging, while the KAS2104ET is supplied in tube packaging with tape seal features. This does not affect component functionality or board-level performance.

Q: What is the height difference above the PCB?

A: The 1825153-2 has a height of 0.169" (4.30mm), while the KAS2104ET has a height of 0.390" (9.90mm). This difference must be considered in applications with height constraints or enclosure clearance requirements.

Q: Does the KAS2104ET support washable applications?

A: Yes. Both the 1825153-2 and KAS2104ET are washable components, maintaining compatibility for applications requiring post-assembly cleaning processes.

Q: What is the temperature operating range for the substitute part?

A: The KAS2104ET operates from -40°C to 85°C, extending the lower temperature limit by 10°C compared to the 1825153-2's -30°C to 85°C range.