TE Connectivity ALCOSWITCH 1-1825008-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1-1825008-4 is a rotary DIP switch with BCD encoding, designed for through-hole, right-angle mounting applications. This component features a 10-position rotary configuration with knob actuator, rated for 0.4VA at 20VAC/DC operation across an industrial temperature range of -30°C to 85°C.

The 1-1825008-4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product support for legacy systems utilizing this component.

Substiute Parts

1-1825008-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 11981-1825008-4 Datasheet

Current PartRFQ

1825008-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 19971825008-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1-1825008-4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Circuit type (BCD encoding)
• Number of positions (10)
• Current rating (0.4VA)
• Voltage rating (20VAC/DC)

Mechanical Compatibility Parameters:

• Mounting type (Through Hole, Right Angle)
• Termination style (PC Pin)
• Pitch spacing (0.100" / 2.54mm)
• Height above board (0.413" / 10.50mm)
• Body material (Polyphenylene Sulfide)
• Contact material and finish (Copper Alloy, Gold)

Operational Parameters:

• Operating temperature range (-30°C to 85°C)

The substitute part 1825008-2 maintains full electrical and mechanical compatibility across all critical parameters. Differences exist in actuator type, product status, and lifecycle certifications, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

For Direct Electrical and Mechanical Substitution:

The 1825008-2 serves as a direct substitute for the 1-1825008-4 across all critical electrical and mechanical parameters. Both components share identical circuit encoding (BCD), position count (10), current and voltage ratings (0.4VA at 20VAC/DC), mounting configuration (through-hole right-angle), and physical dimensions.

Product Status Consideration:

The 1-1825008-4 carries obsolete status, while the 1825008-2 is active. For new designs or long-term supply requirements, the 1825008-2 is the appropriate selection.

Compliance and Certification:

The 1825008-2 provides ROHS3 compliance and defined REACH status, whereas the 1-1825008-4 carries not-applicable or vendor-undefined designations. Applications requiring regulatory compliance should utilize the 1825008-2.

Actuator and Operational Differences:

The 1-1825008-4 features a raised knob actuator for manual operation, while the 1825008-2 features a flush, recessed actuator designed for tool-based operation. This difference affects user interface and operational method but does not impact electrical function or circuit compatibility.

Lifecycle Considerations:

The 1-1825008-4 specifies 20,000 mechanical and electrical steps, while the 1825008-2 specifies 10,000 steps. Applications requiring extended cycle life should evaluate this parameter against actual operational requirements. The 1825008-2 additionally supports washable applications, providing enhanced environmental tolerance.

Frequently Asked Questions (FAQ)

Q: Can the 1825008-2 be used as a direct replacement for the 1-1825008-4 in existing designs?

A: Yes. The 1825008-2 maintains identical electrical ratings (0.4VA at 20VAC/DC), circuit type (BCD), position count (10), mounting configuration (through-hole right-angle), and physical dimensions (0.413" height, 0.100" pitch). PCB layout and electrical connections remain compatible.

Q: What is the primary difference between these two parts?

A: The primary difference is the actuator type. The 1-1825008-4 uses a raised knob actuator for manual operation, while the 1825008-2 uses a flush, recessed actuator designed for tool-based operation. This affects the method of position adjustment but not electrical function.

Q: Does the difference in mechanical life (20,000 vs. 10,000 steps) affect substitution suitability?

A: The mechanical life difference reflects design variations between the DR and DRD series. For applications operating below 10,000 cycles, both parts are suitable. Applications requiring extended cycle life should retain the 1-1825008-4 or evaluate actual operational requirements against the 10,000-step specification of the 1825008-2.

Q: Is the 1825008-2 suitable for applications requiring washable components?

A: Yes. The 1825008-2 is rated as washable, while the 1-1825008-4 is not. For applications requiring washable components, the 1825008-2 provides this capability.

Q: What is the impact of the RoHS3 compliance on the 1825008-2?

A: ROHS3 compliance on the 1825008-2 indicates conformance to Restriction of Hazardous Substances regulations. The 1-1825008-4 carries not-applicable status. For applications subject to regulatory compliance requirements, the 1825008-2 is the appropriate selection.

Q: Are the packaging formats interchangeable?

A: The 1825008-2 is supplied in tube packaging. The 1-1825008-4 packaging format is not specified in available documentation. Verify packaging requirements for your procurement and assembly processes.

Q: Can both parts be used interchangeably in the same circuit?

A: Yes, from an electrical standpoint. Both parts provide identical BCD encoding, 10-position configuration, and 0.4VA at 20VAC/DC ratings. The actuator difference affects operational method only, not circuit function.