ADF04 DIP Switch Equivalent & Substitute Parts

Part Overview

The ADF04 is a 4-position DIP switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a single-pole single-throw (SPST) switch rated for 25mA at 24VDC. This component features a slide actuator with flush, recessed actuation level and is designed for through-hole mounting on printed circuit boards.

The ADF04 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

ADF04

TE Connectivity ALCOSWITCH SwitchesIn Stock: 863ADF04 Datasheet

Current PartRFQ

1825002-5

TE Connectivity ALCOSWITCH SwitchesIn Stock: 156711825002-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADF04 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications in the following critical areas:

Electrical Parameters: Circuit configuration (SPST), number of positions (4), current rating (25mA), and voltage rating (24VDC) must be identical to ensure functional compatibility within the circuit design.

Mechanical Parameters: Actuator type (slide standard), actuator level (flush, recessed), mounting type (through hole), termination style (PC pin), pitch (0.100"), and height above board (0.189") must match to ensure physical compatibility with existing PCB layouts and mechanical assemblies.

Material and Environmental Parameters: Contact material (copper alloy), contact finish (gold), body material (PPS), operating temperature range (-30°C to 85°C), mechanical life (1,000 cycles), and electrical life (1,000 cycles) must be equivalent to maintain reliability and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The part number 1825002-5 is a direct functional and mechanical equivalent to the obsolete ADF04. All electrical and mechanical parameters are identical, ensuring drop-in compatibility for circuit and PCB layout requirements.

The primary distinction between these parts is product status and regulatory compliance. The ADF04 is obsolete and carries RoHS non-compliant status. The 1825002-5 is an active product with RoHS3 compliance, making it the appropriate selection for new designs, production continuity, and systems requiring regulatory adherence.

The 1825002-5 is supplied in tube packaging, whereas the ADF04 packaging specification was not provided. This packaging difference does not affect electrical or mechanical performance and is a standard variation in component distribution.

Frequently Asked Questions (FAQ)

Q: Can the 1825002-5 be used as a direct replacement for the ADF04 in existing designs?

A: Yes. The 1825002-5 is electrically and mechanically equivalent to the ADF04. All functional parameters, including circuit configuration, current and voltage ratings, actuator type, mounting dimensions, and operating temperature range are identical. The component can be substituted without circuit or PCB layout modifications.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The ADF04 is RoHS non-compliant, while the 1825002-5 is RoHS3 compliant. RoHS3 compliance indicates the part meets current European Union restrictions on hazardous substances. For applications subject to RoHS regulations or for new product designs, the 1825002-5 is the appropriate selection.

Q: Does the tube packaging of the 1825002-5 affect its performance compared to the ADF04?

A: No. Packaging format is a distribution and handling specification only and does not affect electrical performance, mechanical compatibility, or reliability characteristics of the component.

Q: Are the mechanical life and electrical life ratings identical between these parts?

A: Yes. Both the ADF04 and 1825002-5 are rated for 1,000 mechanical cycles and 1,000 electrical cycles, indicating equivalent durability and operational lifespan under specified conditions.

Q: What is the pitch specification, and why is it important for substitution?

A: Both parts feature a 0.100" (2.54mm) pitch, which defines the spacing between pin connections. This specification is critical for PCB layout compatibility. Identical pitch ensures the 1825002-5 will fit existing through-hole mounting patterns without modification.

Q: Are there any environmental or temperature-related limitations when substituting the ADF04 with the 1825002-5?

A: No. Both parts operate across the identical temperature range of -30°C to 85°C and share the same moisture sensitivity level (MSL 1, Unlimited). Environmental performance is equivalent.