DA04TN DIP Switch SPST 4-Position Equivalent & Substitute Parts

Part Overview

The DA04TN is a slide-actuated DIP switch manufactured by APEM Inc., configured as a single-pole single-throw (SPST) switch with 4 positions. This component is rated for 50mA at 24VDC and features through-hole, right-angle mounting with gold-plated phosphor bronze contacts. The DA04TN is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

DA04TN

APEM Inc.In Stock: 876DA04TN Datasheet

Current PartRFQ

NDA-04T-V

APEM Inc.In Stock: 1026NDA-04T-V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DA04TN is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPST)
• Number of positions (4)
• Voltage rating (24VDC)
• Mounting type (Through Hole, Right Angle)
• Pitch spacing (0.100" / 2.54mm)
• Height above board (0.390" / 9.90mm)
• Actuator type (Slide, Standard)
• Operating temperature range (-20°C to 70°C)
• RoHS3 compliance

The NDA-04T-V meets these core substitution criteria. However, the current rating differs: the NDA-04T-V is rated for 25mA, which is lower than the DA04TN's 50mA rating. This difference must be evaluated against the actual current requirements of the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The NDA-04T-V is an active product from APEM Inc. and maintains full compliance with ROHS3 and REACH requirements, making it suitable for new designs and legacy system support where the DA04TN is no longer available.

The primary consideration for substitution is the current rating differential. The NDA-04T-V is rated for 25mA maximum, compared to the DA04TN's 50mA rating. Selection of the NDA-04T-V is appropriate only when the application circuit draws 25mA or less through the switch contacts. If the application requires current handling above 25mA, the NDA-04T-V is not suitable, and alternative components must be evaluated.

All other electrical and mechanical parameters are equivalent or compatible between the two parts, including voltage rating, circuit configuration, mounting footprint, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the NDA-04T-V directly replace the DA04TN in existing designs?

A: Direct replacement is possible only if the application circuit operates at 25mA or below. The NDA-04T-V has a lower current rating (25mA vs. 50mA). If the circuit requires higher current handling, the NDA-04T-V will not function reliably and may fail prematurely.

Q: Are the physical dimensions and mounting footprints identical?

A: Yes. Both parts share the same height above board (0.390"), pitch spacing (0.100" / 2.54mm), and through-hole right-angle mounting configuration. PCB layout modifications are not required for substitution.

Q: What is the difference in product status between DA04TN and NDA-04T-V?

A: The DA04TN is classified as obsolete and is no longer manufactured. The NDA-04T-V is an active product currently in production. For new designs and long-term availability, the NDA-04T-V is the recommended choice, provided current requirements are met.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the DA04TN and NDA-04T-V are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: What is the electrical life rating for both parts?

A: Both parts are rated for 2,000 electrical cycles. The DA04TN additionally specifies 5,000 mechanical cycles, while the NDA-04T-V does not provide a mechanical life specification in the available data.