ADF05S Equivalent & Substitute Parts

Part Overview

The ADF05S is a DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole single-throw (SPST) 5-position surface mount component with slide actuator. This switch is rated for 25mA at 24VDC and operates across a temperature range of -30°C to 85°C. The product is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

ADF05S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 920ADF05S Datasheet

Current PartRFQ

1-1825059-9

TE Connectivity ALCOSWITCH SwitchesIn Stock: 8971-1825059-9 Datasheet

DirectRFQ

219-5LPST

CTS ElectrocomponentsIn Stock: 51347219-5LPST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADF05S is determined by the following critical parameters: circuit configuration (SPST), number of positions (5), mounting type (surface mount), actuator type (slide standard), actuator level (flush/recessed), pitch (0.100"), termination style (gull wing), and washability. The substitute parts identified maintain these core functional and mechanical characteristics, ensuring direct compatibility in existing PCB layouts and circuit designs.

Current and voltage ratings are secondary considerations in substitution analysis. The ADF05S operates at 25mA/24VDC; substitute parts with equal or higher current and voltage ratings are electrically compatible, as they can safely handle the original design specifications without exceeding component stress limits.

Parameter Comparison

Engineering Selection Recommendations

1-1825059-9 (TE Connectivity ALCOSWITCH Switches)

This substitute part is manufactured by the same original equipment manufacturer as the ADF05S and maintains the same series designation (ADF). The part is currently in active production status, ensuring long-term availability and supply chain stability. The 1-1825059-9 achieves ROHS3 compliance, addressing regulatory requirements that the obsolete ADF05S does not meet. Mechanical and electrical characteristics align with the original design, supporting direct PCB layout compatibility. This part is the preferred substitute for applications requiring regulatory compliance and manufacturer continuity.

219-5LPST (CTS Electrocomponents)

This substitute part is manufactured by CTS Electrocomponents and maintains active product status. The 219-5LPST provides enhanced electrical performance specifications, with a current rating of 100mA (four times the original 25mA specification) and an extended operating temperature range of -55°C to 85°C (compared to the original -30°C to 85°C). The electrical life rating of 2,000 cycles exceeds the original 1,000 cycles. The part achieves ROHS3 compliance. The 219-5LPST is suitable for applications where enhanced performance margins and extended temperature operation are beneficial, though it represents a different manufacturer source.

Both substitute parts satisfy the core functional requirements of the ADF05S and are available in active production status with current regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the 1-1825059-9 be used as a direct replacement for the ADF05S in existing designs?

A: Yes. The 1-1825059-9 maintains identical circuit configuration (SPST), position count (5), mounting type (surface mount), actuator characteristics (slide standard, flush/recessed), pitch (0.100"), termination style (gull wing), and washability. PCB layout compatibility is preserved. The part is manufactured by TE Connectivity, the original ADF05S manufacturer.

Q: What are the electrical compatibility considerations when substituting the 219-5LPST for the ADF05S?

A: The 219-5LPST is rated for 100mA at 20VDC, compared to the ADF05S specification of 25mA at 24VDC. The substitute part has higher current capacity and lower voltage rating. In applications where the original design operates at 25mA and 24VDC, the 219-5LPST operates within safe margins. The lower voltage rating (20VDC versus 24VDC) requires verification that the application does not exceed 20VDC during normal operation.

Q: Are there packaging differences between the substitute parts?

A: The 1-1825059-9 is supplied in tube packaging. The 219-5LPST is supplied in tube packaging. Both packaging formats are standard for surface mount DIP switches and do not affect component functionality or PCB assembly compatibility.

Q: How do the operating temperature ranges compare?

A: The ADF05S operates from -30°C to 85°C. The 1-1825059-9 does not specify an operating temperature range in the provided data. The 219-5LPST operates from -55°C to 85°C, providing extended low-temperature capability. For applications requiring operation below -30°C, the 219-5LPST is the appropriate selection.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: The ADF05S is RoHS non-compliant. Both substitute parts (1-1825059-9 and 219-5LPST) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, either substitute part satisfies these requirements. The obsolete status of the ADF05S makes RoHS-compliant alternatives necessary for new designs and ongoing procurement.

Q: Do the substitute parts have the same mechanical life rating?

A: The ADF05S specifies 1,000 mechanical cycles. The 1-1825059-9 does not provide a mechanical life specification in the available data. The 219-5LPST does not specify mechanical life but provides an electrical life rating of 2,000 cycles, compared to the ADF05S electrical life of 1,000 cycles.

Q: Are there contact material differences between the parts?

A: The ADF05S uses copper alloy contacts with gold finish. The 1-1825059-9 does not specify contact material in the provided data. The 219-5LPST uses beryllium copper contacts with gold finish. Both gold-finished contact systems provide equivalent electrical performance and corrosion resistance for the specified applications.