DA09 DIP Switch SPST 9 Position Equivalent & Substitute Parts

Part Overview

The DA09 is a slide-actuated DIP switch manufactured by APEM Inc., configured as a single-pole single-throw (SPST) switch with 9 positions. This component is rated for 50mA at 24VDC and features through-hole, right-angle mounting with gold-plated phosphor bronze contacts. The DA09 is classified as obsolete, making identification of functionally equivalent active alternatives necessary for new designs and ongoing production requirements.

Substiute Parts

DA09

APEM Inc.In Stock: 1116DA09 Datasheet

Current PartRFQ

NDA-09-V

APEM Inc.In Stock: 1276NDA-09-V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The NDA-09-V qualifies as a substitute for the DA09 based on the following matching parameters:

• Circuit configuration: Both are SPST switches
• Number of positions: Both feature 9 positions
• Voltage rating: Both rated for 24VDC
• Actuator type: Both use slide (standard) actuation
• Mounting configuration: Both are through-hole, right-angle mounted
• Pitch: Both use 0.100" (2.54mm) full pitch
• Operating temperature range: Both operate from -20°C to 70°C
• Contact finish: Both feature gold-plated contacts
• Termination style: Both use PC pin termination
• RoHS compliance: Both are ROHS3 compliant

The primary difference is the current rating: the NDA-09-V is rated for 25mA, which is lower than the DA09's 50mA rating. This substitution is valid only for applications where the circuit current requirement does not exceed 25mA.

Parameter Comparison

Engineering Selection Recommendations

The NDA-09-V is an active production equivalent for the obsolete DA09. Both components meet ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current designs. The NDA-09-V maintains identical mechanical and electrical specifications with the exception of current rating.

Selection of the NDA-09-V is appropriate when circuit current requirements do not exceed 25mA. For applications requiring the full 50mA current capacity of the original DA09, alternative components from APEM Inc. or other manufacturers with matching 50mA ratings must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the NDA-09-V directly replace the DA09 in all applications?

A: Direct replacement is valid only if the circuit current does not exceed 25mA. The NDA-09-V has a lower current rating (25mA) compared to the DA09 (50mA). Exceeding the rated current will compromise component reliability.

Q: Are the physical dimensions identical between DA09 and NDA-09-V?

A: The components share identical mounting height (0.390"), pitch (0.100"), and through-hole right-angle configuration. Length differs slightly (DA09: 0.960" vs. NDA-09-V: 0.950"), but this does not affect PCB footprint compatibility.

Q: What is the significance of the DA09 being obsolete?

A: Obsolete status indicates the DA09 is no longer manufactured. The NDA-09-V, classified as active, is the current production equivalent from APEM Inc. and is recommended for new designs and ongoing production.

Q: Are both components RoHS and REACH compliant?

A: Yes. Both the DA09 and NDA-09-V are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the electrical life specification for these switches?

A: Both components are rated for 2,000 electrical cycles at the specified voltage and current ratings.