TE Connectivity ALCOSWITCH 1825152-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1825152-1 is a slide-actuated DIP switch with SPST (Single Pole Single Throw) configuration, rated for 0.4VA at 20VAC/DC. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements. The part belongs to the SSV series and features through-hole mounting with gold-plated copper alloy contacts suitable for washable applications.

Substiute Parts

1825152-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10481825152-1 Datasheet

Current PartRFQ

1977104-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11551977104-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1825152-1 is constrained by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Circuit configuration must remain SPST with 2-position operation
• Voltage rating of substitute must equal or exceed 20VAC/DC
• Current rating of substitute must equal or exceed 0.4VA
• Contact material and finish must maintain gold-plated copper alloy specification

Mechanical Compatibility Criteria:

• Actuator type must be slide-actuated (standard configuration)
• Mounting method must be through-hole with PC pin termination
• Pitch spacing must be 0.100" (2.54mm) full pitch
• Operating temperature range must encompass -30°C ~ 85°C
• Mechanical and electrical life ratings must meet or exceed 1,000 cycles

Environmental and Compliance Criteria:

• Moisture Sensitivity Level must be MSL 1 (Unlimited)
• REACH and ECCN classifications must align with original specification

The identified substitute part 1977104-1 does not meet the electrical compatibility requirements for direct substitution due to reduced voltage rating (5VDC versus 20VAC/DC) and reduced current rating (10mA versus 0.4VA).

Parameter Comparison

Engineering Selection Recommendations

The 1825152-1 is classified as obsolete and no longer available from the manufacturer. The listed substitute part 1977104-1 shares identical mechanical and environmental characteristics but operates at significantly reduced electrical ratings. The 1977104-1 is rated for 5VDC and 10mA, whereas the original 1825152-1 operates at 20VAC/DC and 0.4VA.

Direct substitution of 1977104-1 is not permissible for applications requiring the full electrical specifications of the 1825152-1. The voltage and current ratings of the substitute are insufficient for circuits designed around the original part's 20VAC/DC, 0.4VA capability.

For applications with reduced electrical requirements (5VDC, 10mA or less), the 1977104-1 offers an active, production-available alternative with matching mechanical form factor and environmental compliance. The 1977104-1 carries ROHS3 compliance status, providing enhanced regulatory alignment for new designs.

For applications requiring the original 20VAC/DC, 0.4VA electrical specification, alternative sources must be evaluated outside the provided substitute list, or circuit redesign to accommodate lower-rated switching components must be considered.

Frequently Asked Questions (FAQ)

Q: Can the 1977104-1 directly replace the 1825152-1 in existing designs?

A: No. The 1977104-1 has insufficient electrical ratings. It is rated for 5VDC and 10mA, while the 1825152-1 requires 20VAC/DC and 0.4VA operation. Direct substitution will result in component failure or circuit malfunction.

Q: What are the primary differences between these two parts?

A: The primary differences are electrical ratings. Both parts share identical mechanical form factors, mounting styles, pitch spacing, actuator types, and environmental operating ranges. The 1977104-1 is designed for low-voltage, low-current applications, while the 1825152-1 is rated for higher voltage and current levels.

Q: Why is the 1825152-1 obsolete?

A: The 1825152-1 belongs to the SSV series, which has been discontinued by TE Connectivity ALCOSWITCH. The 1977104-1 belongs to the active STV series and represents the manufacturer's current product line for slide-actuated DIP switches.

Q: Can the 1977104-1 be used in a 20VAC/DC circuit?

A: No. The 1977104-1 is rated for 5VDC maximum. Applying 20VAC/DC will exceed the component's voltage rating and cause failure.

Q: Are the physical dimensions compatible between these parts?

A: The parts have similar but not identical dimensions. The 1825152-1 has a height of 0.197" (5.00mm) and length of 0.298" (7.58mm). The 1977104-1 has a height of 0.244" (6.20mm) and length of 0.326" (8.28mm). Both share the same 0.100" (2.54mm) pitch spacing and through-hole mounting configuration.

Q: What packaging is available for the 1977104-1?

A: The 1977104-1 is supplied in tube packaging, whereas the 1825152-1 packaging specification was not provided in the original documentation.

Q: Are both parts RoHS compliant?

A: The 1977104-1 is ROHS3 compliant. The 1825152-1 RoHS status was not specified in the original documentation. Both parts are REACH Unaffected and carry EAR99 ECCN classification.