DPL09T Equivalent & Substitute Parts

Part Overview

The DPL09T is a 9-position DIP switch manufactured by APEM Inc., featuring a piano actuator with SPST circuit configuration rated for 50mA at 24VDC. This component is designed for through-hole, right-angle mounting applications requiring sealed terminals and washable construction. The DPL09T is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support, maintenance, and new design implementations where this legacy component is specified.

Substiute Parts

DPL09T

APEM Inc.In Stock: 1124DPL09T Datasheet

Current PartRFQ

NDPL-09T-V

APEM Inc.In Stock: 819NDPL-09T-V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DPL09T are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Circuit configuration: SPST
• Number of positions: 9
• Voltage rating: 24VDC
• Actuator type: Piano with raised level
• Mounting configuration: Through hole, right angle
• Pitch spacing: 0.100" (2.54mm)
• Termination style: PC pin
• Operating temperature range: -20°C to 70°C
• RoHS compliance: ROHS3

Secondary Consideration:

• Current rating tolerance: Substitute parts must meet or exceed the application's current requirements

The NDPL-09T-V from APEM Inc. meets all primary matching criteria. The current rating difference (25mA versus 50mA) represents a reduction in current capacity and must be evaluated against actual circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The NDPL-09T-V is the identified substitute for the obsolete DPL09T. Both components are manufactured by APEM Inc. and share identical mechanical and electrical interface specifications, including mounting footprint, pitch, actuator configuration, and operating temperature range.

The primary distinction is the current rating: the NDPL-09T-V is rated for 25mA compared to the DPL09T's 50mA. Selection of the NDPL-09T-V is appropriate when circuit current requirements do not exceed 25mA. For applications requiring the full 50mA capacity of the original DPL09T, alternative parts with higher current ratings must be evaluated.

Both parts maintain ROHS3 compliance and identical electrical life specifications (2,000 cycles). The NDPL-09T-V carries active product status, ensuring ongoing availability and supply chain support compared to the obsolete DPL09T.

Frequently Asked Questions (FAQ)

Q: Can the NDPL-09T-V directly replace the DPL09T in existing designs?

A: Direct replacement is possible from a mechanical and interface perspective. The footprint, mounting configuration, pitch, and actuator type are identical. However, the current rating reduction from 50mA to 25mA must be evaluated against the actual circuit requirements. If the application draws more than 25mA through the switch contacts, the NDPL-09T-V is not suitable.

Q: What are the key parameters that must match for substitution?

A: Critical matching parameters include circuit type (SPST), number of positions (9), voltage rating (24VDC), actuator type (piano, raised), mounting style (through hole, right angle), pitch (0.100"), and operating temperature range (-20°C to 70°C). These parameters ensure mechanical and electrical compatibility.

Q: Why is the DPL09T obsolete?

A: The DPL09T is classified as obsolete by the manufacturer. The NDPL-09T-V represents the active product line continuation from APEM Inc. for this switch category.

Q: Are there differences in contact material between these parts?

A: The DPL09T specifies phosphor bronze contact material with gold finish. The NDPL-09T-V contact material is not specified in available documentation but maintains gold finish. Both parts provide gold-plated contacts for reliable electrical performance.

Q: What is the mechanical life difference?

A: The DPL09T specifies 5,000 mechanical cycles. The NDPL-09T-V mechanical life is not specified in available documentation. Both parts specify 2,000 electrical cycles.

Q: Are both parts RoHS compliant?

A: Yes, both the DPL09T and NDPL-09T-V are ROHS3 compliant, meeting current environmental and regulatory requirements.