ADF07S Equivalent & Substitute Parts

Part Overview

The ADF07S is a DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a 7-position surface mount SPST (Single Pole Single Throw) device with slide actuator. This component is rated for 25mA at 24VDC and features a flush, recessed actuator level with gold-plated copper alloy contacts. The ADF07S is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity.

Substiute Parts

ADF07S

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1114ADF07S Datasheet

Current PartRFQ

3-1825059-1

TE Connectivity ALCOSWITCH SwitchesIn Stock: 23363-1825059-1 Datasheet

DirectRFQ

219-7LPST

CTS ElectrocomponentsIn Stock: 2241219-7LPST Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADF07S is determined by the following critical parameters: circuit configuration (SPST), number of positions (7), mounting type (surface mount), actuator type (slide standard), actuator level (flush/recessed), pitch (0.100"), and termination style (gull wing). The substitute parts must maintain compatibility with these mechanical and electrical interface requirements.

Current and voltage ratings establish the operational envelope within which substitutes function. The ADF07S operates at 25mA and 24VDC. Substitute parts with equal or greater current and voltage ratings are electrically compatible, as they can safely handle the specified load without exceeding component stress limits.

Product status and regulatory compliance (RoHS, REACH) are secondary selection criteria that reflect manufacturing availability and environmental regulatory adherence. Active status substitutes provide superior supply chain continuity compared to obsolete components.

Parameter Comparison

Engineering Selection Recommendations

3-1825059-1 (TE Connectivity ALCOSWITCH Switches)

The 3-1825059-1 is a direct TE Connectivity ALCOSWITCH Switches substitute within the same product family (ADF series). This part maintains identical circuit configuration (SPST), position count (7), mounting type (surface mount), actuator characteristics (standard, flush/recessed), and pitch (0.100"). The 3-1825059-1 carries active product status and ROHS3 compliance, providing superior supply chain availability and regulatory alignment compared to the obsolete ADF07S. Specific current and voltage ratings are not provided in available documentation; verification against application requirements is necessary prior to implementation.

219-7LPST (CTS Electrocomponents)

The 219-7LPST is a cross-manufacturer substitute from CTS Electrocomponents. This component shares the same circuit configuration (SPST), position count (7), mounting type (surface mount), actuator type (slide standard), actuator level (flush/recessed), pitch (0.100"), termination style (gull wing), and contact finish (gold). The 219-7LPST is rated for 100mA at 20VDC, providing current capacity exceeding the ADF07S specification (25mA) and voltage rating within 20% of the original specification (24VDC). The 219-7LPST demonstrates active product status, ROHS3 compliance, and extended electrical life (2,000 cycles versus 1,000 cycles). Operating temperature range extends to -55°C, exceeding the ADF07S lower limit of -30°C. Physical dimensions (height 0.160" versus 0.177", length 0.758" versus 0.778") remain within typical PCB layout tolerances for DIP switch applications.

Frequently Asked Questions (FAQ)

Q: What determines electrical compatibility between the ADF07S and substitute parts?

A: Electrical compatibility is established through circuit configuration (SPST), number of positions (7), and electrical ratings. Substitute parts with equal or greater current and voltage capacity are electrically compatible. The 219-7LPST (100mA, 20VDC) exceeds the ADF07S requirements (25mA, 24VDC) and operates within acceptable parameters for applications designed for the original component.

Q: Are there mechanical compatibility concerns when substituting the ADF07S?

A: Mechanical compatibility is maintained through identical pitch (0.100"), termination style (gull wing), mounting type (surface mount), and actuator characteristics (slide standard, flush/recessed). Minor dimensional variations in height (0.177" to 0.160") and length (0.778" to 0.758") are within standard PCB layout tolerances for DIP switch applications and do not affect board-level integration.

Q: Why is the 3-1825059-1 preferred over the 219-7LPST?

A: The 3-1825059-1 is a direct family substitute from the same manufacturer (TE Connectivity ALCOSWITCH Switches) within the ADF series. This maintains design continuity and supply chain consistency. However, specific electrical ratings for the 3-1825059-1 are not documented. The 219-7LPST provides fully specified electrical characteristics (100mA, 20VDC) and extended operational life (2,000 cycles), making it suitable for applications requiring documented performance parameters.

Q: What is the significance of product status (Active vs. Obsolete)?

A: Product status reflects manufacturing availability and supply chain viability. Obsolete components (ADF07S) have discontinued production and limited inventory. Active components (3-1825059-1, 219-7LPST) are in current production with established supply chains, ensuring long-term availability for new designs and production runs.

Q: How do RoHS compliance differences affect substitution decisions?

A: The ADF07S is RoHS non-compliant, while both substitute parts (3-1825059-1 and 219-7LPST) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant substitutes are mandatory. For legacy systems without regulatory constraints, non-compliance is not a technical barrier to substitution.

Q: What packaging options are available for the substitute parts?

A: The 3-1825059-1 is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The 219-7LPST is supplied in Tube packaging, suitable for manual assembly or lower-volume applications. Packaging selection depends on production volume and assembly methodology.

Q: Are there operating temperature range considerations for substitution?

A: The ADF07S operates from -30°C to 85°C. The 219-7LPST extends the lower limit to -55°C, providing broader temperature coverage. For applications operating within the ADF07S range (-30°C to 85°C), both substitutes are compatible. For applications requiring extended low-temperature operation below -30°C, the 219-7LPST is the appropriate selection.