DS02 DIP Switch SPST 24V 50mA Equivalent & Substitute Parts

Part Overview

The DS02 is a DIP switch manufactured by APEM Inc., classified as a single-pole single-throw (SPST) slide-actuated switch designed for 24VDC applications with a 50mA current rating. This component is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The DS02 features through-hole mounting with PC pin termination, phosphor bronze contacts with gold finish, and is rated for 5,000 mechanical cycles and 2,000 electrical cycles.

Substiute Parts

DS02

APEM Inc.In Stock: 1041DS02 Datasheet

Current PartRFQ

208-2

CTS ElectrocomponentsIn Stock: 1069208-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The CTS Electrocomponents 208-2 qualifies as a functional substitute for the DS02 based on the following critical parameters:

• Circuit Configuration: Both parts are SPST switches with identical 2-position operation
• Electrical Ratings: Both support 50mA current at 24VDC
• Mechanical Interface: Both feature slide-actuated mechanisms with raised actuator levels, through-hole mounting, PC pin termination, and 0.100" (2.54mm) pitch
• Regulatory Compliance: Both are ROHS3 compliant and REACH unaffected

Substitution is valid where the application tolerates the physical and environmental differences documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

The CTS Electrocomponents 208-2 is an active product with current manufacturing support, making it suitable for applications requiring component continuity beyond the obsolete DS02. Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory alignment for new designs and legacy system updates.

Selection between DS02 and 208-2 depends on physical constraints and environmental requirements. The 208-2 offers a wider operating temperature range (-55°C to 85°C versus -20°C to 70°C), beneficial for industrial or extended-temperature applications. However, the 208-2's increased height (0.334" versus 0.271") and length (0.286" versus 0.260") require verification against PCB layout and enclosure clearance specifications. Contact finish differences (gold versus tin) do not affect functional compatibility at 24VDC switching levels.

Frequently Asked Questions (FAQ)

Q: Can the CTS 208-2 directly replace the APEM DS02 in existing designs?

A: Electrical and functional compatibility is confirmed. Physical compatibility requires verification of PCB layout and enclosure clearance, as the 208-2 is taller and longer than the DS02.

Q: What are the key differences between these parts?

A: The primary differences are physical dimensions (height and length), operating temperature range (208-2 is wider), and contact finish material (gold versus tin). Electrical ratings, circuit configuration, and mechanical interface are identical.

Q: Does the wider operating temperature range of the 208-2 affect compatibility?

A: No. The 208-2's extended range (-55°C to 85°C) is a superset of the DS02 range (-20°C to 70°C), making it suitable for applications within either temperature specification.

Q: Are there packaging differences between these parts?

A: The DS02 is supplied in standard packaging, while the 208-2 is supplied in tube packaging. Both are through-hole components with identical pitch and termination style.

Q: Do the different contact materials (gold versus tin) affect performance?

A: Both contact finishes are suitable for 24VDC switching applications. Contact material selection does not impact functional compatibility at the specified voltage and current ratings.

Q: What compliance certifications apply to both parts?

A: Both the DS02 and 208-2 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.