DA02T DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The DA02T is a slide-actuated DIP switch manufactured by APEM Inc., configured as a single-pole single-throw (SPST) switch with 2 positions. This component is rated for 50mA at 24VDC and features through-hole, right-angle mounting with PC pin termination. The DA02T is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity.

Substiute Parts

DA02T

APEM Inc.In Stock: 1177DA02T Datasheet

Current PartRFQ

NDA-02T-V

APEM Inc.In Stock: 1131NDA-02T-V Datasheet

SimilarRFQ

KAS2102E

E-SwitchIn Stock: 4590KAS2102E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DA02T is determined by strict equivalence across the following parameters:

• Circuit Configuration: SPST topology required
• Number of Positions: 2-position switch
• Voltage Rating: 24VDC minimum
• Mounting Type: Through hole, right angle configuration
• Pitch: 0.100" (2.54mm) full pitch
• Height Above Board: 0.390" (9.90mm)
• Termination Style: PC pin
• RoHS Compliance: ROHS3 Compliant

Current rating tolerance is permitted within the 24VDC, SPST, 2-position category. The DA02T operates at 50mA; substitute parts rated at 25mA are acceptable for applications where the load current does not exceed the substitute part's rating.

Parameter Comparison

Engineering Selection Recommendations

NDA-02T-V (APEM Inc.): This part is manufactured by the same supplier as the DA02T and maintains active product status. It meets all core substitution criteria: SPST configuration, 2-position, 24VDC rating, through-hole right-angle mounting, and 0.100" pitch. The current rating is reduced to 25mA; this substitute is suitable for applications where circuit load current does not exceed 25mA. ROHS3 compliance and gold-plated contacts are maintained.

KAS2102E (E-Switch): This part provides cross-manufacturer substitution with active product status. It satisfies all mechanical and electrical substitution parameters: SPST configuration, 2-position, 24VDC rating, through-hole right-angle mounting, and 0.100" pitch. The current rating is 25mA. The operating temperature range extends to -40°C to 85°C, providing broader environmental coverage than the DA02T. ROHS3 compliance is maintained. Packaging is supplied in tube format.

Both substitute parts are suitable for direct PCB footprint replacement when application current requirements do not exceed 25mA at 24VDC.

Frequently Asked Questions (FAQ)

Q: Can the NDA-02T-V or KAS2102E be used as direct replacements for the DA02T?

A: Both parts are mechanically and electrically compatible for PCB mounting. Substitution is valid when the application circuit current does not exceed 25mA at 24VDC. The DA02T is rated for 50mA; applications requiring higher current must retain the original part or identify alternative sources.

Q: What is the difference between the NDA-02T-V and KAS2102E?

A: Both parts share identical core specifications: SPST, 2-position, 24VDC, 25mA, through-hole right-angle mounting, and 0.100" pitch. The NDA-02T-V is manufactured by APEM Inc. (original supplier) with operating temperature -20°C to 70°C. The KAS2102E is manufactured by E-Switch with extended operating temperature -40°C to 85°C and is supplied in tube packaging.

Q: Are there any compatibility concerns with PCB layout?

A: Both substitute parts maintain the same pitch (0.100"), height above board (0.390"), and through-hole right-angle mounting configuration as the DA02T. No PCB layout modifications are required.

Q: What compliance certifications apply to these substitute parts?

A: All three parts (DA02T, NDA-02T-V, and KAS2102E) are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (unlimited) for all parts.

Q: Which substitute part should be selected for new designs?

A: For applications requiring 25mA or less at 24VDC, either substitute is acceptable. The NDA-02T-V maintains continuity with the original APEM supplier. The KAS2102E provides extended temperature range (-40°C to 85°C) for applications with broader environmental requirements.