DP08 DIP Switch Equivalent & Substitute Parts

Part Overview

The DP08 is an 8-position DIP switch manufactured by APEM Inc., configured as a single-pole single-throw (SPST) switch with piano actuator. This component is rated for 50mA at 24VDC and features through-hole, right-angle mounting with PC pin termination. The DP08 is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

DP08

APEM Inc.In Stock: 1085DP08 Datasheet

Current PartRFQ

NDP-08-V

APEM Inc.In Stock: 807NDP-08-V Datasheet

SimilarRFQ

KAP1108E

E-SwitchIn Stock: 2569KAP1108E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DP08 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST
• Number of Positions: Must be 8
• Voltage Rating: Must support 24VDC operation
• Mounting Type: Must be through-hole, right-angle configuration
• Pitch: Must be 0.100" (2.54mm) for PCB compatibility
• Termination Style: Must use PC pin termination
• Contact Finish: Gold plating required for signal integrity

The substitute parts identified below meet these core electrical and mechanical requirements. Current rating differences are acceptable where the substitute part rating meets or exceeds the application requirement of 50mA.

Parameter Comparison

Engineering Selection Recommendations

Both NDP-08-V and KAP1108E are active production alternatives to the obsolete DP08. Selection between these substitutes depends on application-specific requirements:

NDP-08-V (APEM Inc.): Maintains APEM manufacturer continuity with identical form factor and operating temperature range. Current rating of 25mA is suitable for applications where the DP08's 50mA capability is not fully utilized. This part is recommended for direct replacement in existing APEM-based designs.

KAP1108E (E-Switch): Offers extended operating temperature range (-40°C to 85°C) compared to the DP08 (-20°C to 70°C), providing broader environmental tolerance. The raised actuator level differs from the DP08's flush configuration, which may affect panel mounting aesthetics and accessibility. Current rating of 25mA applies the same constraint as the NDP-08-V. This part is recommended for applications requiring enhanced temperature performance or when E-Switch supply chain preference is established.

Both substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical electrical life specifications. PCB layout compatibility is assured through matching pitch, height, and termination style.

Frequently Asked Questions (FAQ)

Q: Can the NDP-08-V or KAP1108E be used as direct replacements for the DP08 in existing PCB designs?

A: Yes, both parts are mechanically and electrically compatible for PCB mounting. Identical pitch (0.100"), height above board (0.402"), and termination style (PC pin) ensure direct footprint compatibility. No PCB layout modifications are required.

Q: What is the significance of the current rating difference between the DP08 (50mA) and the substitute parts (25mA)?

A: The substitute parts have a lower current rating. Applications operating at or below 25mA can use either substitute without limitation. Applications requiring current capacity between 25mA and 50mA must be evaluated against actual circuit requirements. If the DP08's 50mA rating is essential, neither substitute is appropriate.

Q: How does the actuator level difference between the DP08 (flush) and KAP1108E (raised) affect compatibility?

A: Actuator level affects panel mounting and user accessibility. The DP08's flush, recessed actuator sits level with the panel surface, while the KAP1108E's raised actuator protrudes above the panel. This difference may impact panel cutout design and user interface ergonomics. The NDP-08-V maintains the flush configuration of the DP08.

Q: Are there temperature range limitations when substituting the DP08?

A: The DP08 operates from -20°C to 70°C. The NDP-08-V maintains this range. The KAP1108E extends to -40°C to 85°C, providing broader environmental tolerance. Applications within the DP08's original temperature range can use either substitute. Applications requiring extended temperature performance should specify the KAP1108E.

Q: What packaging formats are available for these substitute parts?

A: The NDP-08-V is supplied in tube packaging. The KAP1108E is supplied in tube packaging. Both formats are standard for DIP switch distribution and are compatible with standard component handling and assembly processes.