DP03T DIP Switch Piano Actuator Equivalent & Substitute Parts

Part Overview

The DP03T is a 3-position DIP switch manufactured by APEM Inc., featuring a piano actuator with SPST circuit configuration rated for 50mA at 24VDC. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The DP03T is designed for through-hole, right-angle mounting with PC pin termination and operates across a temperature range of -20°C to 70°C.

Substiute Parts

DP03T

APEM Inc.In Stock: 713DP03T Datasheet

Current PartRFQ

NDP-03T-V

APEM Inc.In Stock: 811NDP-03T-V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DP03T is determined by the following critical parameters:

Circuit Configuration: SPST topology must be maintained to ensure single-pole, single-throw switching behavior.

Number of Positions: 3-position configuration is required for mechanical and electrical compatibility with existing PCB layouts.

Voltage Rating: 24VDC nominal rating is mandatory for system voltage compatibility.

Actuator Type: Piano actuator is required to match the mechanical interface and user interaction profile.

Mounting and Termination: Through-hole, right-angle mounting with PC pin termination ensures direct PCB compatibility without redesign.

Pitch Specification: 0.100" (2.54mm) full pitch is required for footprint alignment.

Current Rating Consideration: The DP03T operates at 50mA. Substitute parts with equal or greater current ratings maintain full functional equivalence. Parts with lower current ratings (such as 25mA) represent current-limited alternatives suitable only for applications where the actual circuit current does not exceed the substitute part's rating.

Parameter Comparison

Engineering Selection Recommendations

The NDP-03T-V represents an active-status alternative to the obsolete DP03T. Both components maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility.

The primary distinction between these parts is the current rating: the DP03T is rated for 50mA, while the NDP-03T-V is rated for 25mA. Selection between these parts depends on the actual circuit current requirement. If the application circuit draws 25mA or less, the NDP-03T-V provides a direct functional substitute with the advantage of active product status and ongoing manufacturer support. If the application requires the full 50mA capability of the DP03T, the NDP-03T-V is not suitable as a substitute.

The NDP-03T-V is currently in stock with 730 units available, whereas the DP03T is obsolete with limited remaining inventory of 634 units.

Frequently Asked Questions (FAQ)

Q: Can the NDP-03T-V replace the DP03T in all applications?

A: The NDP-03T-V is mechanically and electrically compatible with the DP03T for applications where the circuit current does not exceed 25mA. If your application requires the full 50mA current rating of the DP03T, the NDP-03T-V cannot be used as a substitute.

Q: What are the key compatibility factors between these DIP switches?

A: Both parts share identical circuit configuration (SPST), position count (3), voltage rating (24VDC), actuator type (piano), mounting method (through-hole, right-angle), termination style (PC pin), and pitch (0.100"). These parameters ensure mechanical and electrical interchangeability at the PCB level.

Q: Why is the DP03T classified as obsolete?

A: The DP03T is listed as obsolete by the manufacturer. The NDP-03T-V represents the active product line continuation from APEM Inc. for this switch category.

Q: Are there any differences in physical dimensions between these parts?

A: The height above board is identical at 0.402" (10.20mm). The NDP-03T-V has a slightly shorter overall length of 0.350" (8.89mm) compared to the DP03T at 0.361" (9.17mm), but this difference does not affect PCB footprint compatibility.

Q: What is the mechanical life specification for the NDP-03T-V?

A: The mechanical life specification for the NDP-03T-V is not provided in the available technical data. Both parts specify an electrical life of 2,000 cycles.