APEM Inc. DP02 Piano DIP Switch SPST Equivalent & Substitute Parts

Part Overview

The APEM Inc. DP02 is a single-pole single-throw (SPST) piano DIP switch designed for through-hole, right-angle mounting applications. This component operates at 24VDC with a 50mA current rating and features a flush, recessed piano actuator. The DP02 is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system maintenance and new design implementations where legacy compatibility is not required.

Substiute Parts

DP02

APEM Inc.In Stock: 9618DP02 Datasheet

Current PartRFQ

NDP-02-V

APEM Inc.In Stock: 1103NDP-02-V Datasheet

SimilarRFQ

KAP1102E

E-SwitchIn Stock: 1764KAP1102E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DP02 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST (single-pole single-throw)
• Number of Positions: Must be 2-position
• Voltage Rating: Must be 24VDC or higher
• Actuator Type: Must be Piano
• Mounting Type: Must be Through Hole, Right Angle
• Pitch: Must be 0.100" (2.54mm)
• Current Rating: Substitute must support minimum 50mA or lower current applications where the DP02 was used

The DP02 operates at 50mA maximum current. Substitute parts with lower current ratings (25mA) are acceptable for applications where actual current draw does not exceed the substitute's rating. Substitute parts with higher current ratings provide direct compatibility.

Parameter Comparison

Engineering Selection Recommendations

NDP-02-V (APEM Inc.): This substitute maintains identical mechanical and electrical specifications to the DP02 with the exception of current rating (25mA versus 50mA). The NDP-02-V is manufactured by the same supplier (APEM Inc.) and carries active product status. Selection of the NDP-02-V is appropriate for applications where circuit current does not exceed 25mA. Both parts share identical operating temperature range, pitch, mounting configuration, and RoHS3 compliance status.

KAP1102E (E-Switch): This substitute provides equivalent circuit configuration, voltage rating, and pitch specifications. The KAP1102E is manufactured by E-Switch and carries active product status. Key differences include: (1) actuator level is raised rather than flush/recessed, (2) operating temperature range extends to -40°C ~ 85°C (broader than DP02), and (3) current rating is 25mA. The KAP1102E is suitable for applications where the raised actuator profile is mechanically compatible and circuit current does not exceed 25mA.

Both substitute parts are ROHS3 compliant and carry MSL rating 1 (unlimited moisture sensitivity level), matching the DP02 compliance profile.

Frequently Asked Questions (FAQ)

Q: Can the NDP-02-V directly replace the DP02 in all applications?

A: The NDP-02-V is mechanically and electrically compatible with the DP02 for applications where circuit current does not exceed 25mA. If the original circuit requires the full 50mA current capacity of the DP02, the NDP-02-V is not suitable. Verify actual circuit current draw before substitution.

Q: What is the primary difference between the NDP-02-V and KAP1102E?

A: Both parts have identical current ratings (25mA) and voltage specifications (24VDC). The primary difference is actuator profile: the NDP-02-V features a flush, recessed actuator matching the DP02, while the KAP1102E has a raised actuator. Additionally, the KAP1102E supports an extended operating temperature range (-40°C ~ 85°C) compared to the NDP-02-V (-20°C ~ 70°C).

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the NDP-02-V and KAP1102E are ROHS3 compliant, matching the DP02 compliance status.

Q: Does actuator profile affect PCB layout compatibility?

A: Yes. The DP02 and NDP-02-V both feature flush, recessed actuators at 0.402" height above board. The KAP1102E features a raised actuator at the same height. If the original design includes a recessed actuator pocket or overlay, the KAP1102E raised actuator may require mechanical redesign. Verify mechanical clearance and actuator accessibility in your specific application.

Q: What is the pitch specification and why does it matter?

A: All three parts share a 0.100" (2.54mm) pitch, which defines the center-to-center spacing of the switch positions. This standardized pitch ensures PCB footprint compatibility across all three parts.

Q: Can I use a substitute part with a lower current rating if my circuit only draws 20mA?

A: Yes. Both substitute parts are rated for 25mA, which exceeds a 20mA circuit requirement. Verify that your actual circuit current does not exceed the substitute part's 25mA rating before implementation.