DP12T DIP Switch Equivalent & Substitute Parts

Part Overview

The DP12T is a 12-position DIP switch manufactured by APEM Inc., designed for through-hole, right-angle mounting applications requiring SPST (Single Pole Single Throw) switching at 24VDC with a 50mA current rating. The unit features a piano actuator with flush, recessed actuation and gold-plated phosphor bronze contacts sealed with epoxy and tape. This part is classified as obsolete, making identification of functionally equivalent active alternatives necessary for new designs and ongoing production support.

Substiute Parts

DP12T

APEM Inc.In Stock: 1079DP12T Datasheet

Current PartRFQ

NDP-12T-V

APEM Inc.In Stock: 761NDP-12T-V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DP12T is determined by strict equivalence in the following parameters:

• Circuit Configuration: Must remain SPST
• Number of Positions: Must remain 12
• Voltage Rating: Must remain 24VDC
• Actuator Type: Must remain Piano with flush, recessed actuation
• Mounting Type: Must remain through-hole, right-angle
• Pitch: Must remain 0.100" (2.54mm)
• Height Above Board: Must remain 0.402" (10.20mm)

The NDP-12T-V meets all these core substitution criteria. The primary difference is a reduced current rating (25mA versus 50mA), which represents a design improvement for lower-power applications while maintaining full compatibility with the mechanical and electrical interface requirements of the DP12T footprint.

Parameter Comparison

Engineering Selection Recommendations

The NDP-12T-V is the direct active substitute for the obsolete DP12T. Both components maintain identical mechanical interfaces, electrical specifications for voltage and circuit configuration, and compliance certifications. The NDP-12T-V carries active product status with current manufacturing support, ensuring long-term availability and supply chain continuity.

Selection of the NDP-12T-V is appropriate for applications where the 25mA current rating satisfies circuit requirements. For applications requiring the full 50mA capability of the original DP12T, alternative solutions from the APEM NDP or equivalent series must be evaluated against the specified mechanical and electrical constraints.

Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the NDP-12T-V directly replace the DP12T in existing designs?

A: Yes, the NDP-12T-V provides direct mechanical and electrical interface compatibility. The footprint, pitch, height, mounting type, and connector style are identical. Verify that your circuit design operates within the 25mA current rating of the NDP-12T-V.

Q: What is the primary difference between these two parts?

A: The current rating differs: DP12T is rated for 50mA, while NDP-12T-V is rated for 25mA. All other electrical and mechanical parameters remain equivalent.

Q: Why is the DP12T obsolete?

A: The DP12T has been discontinued by APEM Inc. The NDP-12T-V represents the active product line continuation with improved design characteristics.

Q: Are there any packaging or MSL differences?

A: Both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity constraints during storage or handling.

Q: What compliance certifications apply to both parts?

A: Both the DP12T and NDP-12T-V are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.

Q: Can I use the NDP-12T-V if my application requires 50mA switching?

A: No. The NDP-12T-V is rated for 25mA maximum. Using it in a 50mA application exceeds its electrical specifications and may result in component failure or safety hazards.