DBUH-25P D-Sub Connector Equivalent & Substitute Parts

Part Overview

The DBUH-25P is a 25-position D-Sub plug connector manufactured by Cinch Connectivity Solutions, featuring male pins with crimp termination. This connector is actively produced and maintained in inventory with 1825 units in stock. The DBUH-25P serves as a standard D-Sub interface for signal transmission in applications requiring reliable in-line connectivity with a 2-row configuration in shell size 3 (DB, B).

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, when inventory constraints exist, or when design requirements permit equivalent connector configurations that maintain electrical and mechanical compatibility.

Substiute Parts

DBUH-25P

Cinch Connectivity SolutionsIn Stock: 1884DBUH-25P Datasheet

Current PartRFQ

1757819-3

TE Connectivity Aerospace, Defense and MarineIn Stock: 11101757819-3 Datasheet

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205166-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 1029205166-1 Datasheet

SimilarRFQ

205560-2

TE Connectivity Aerospace, Defense and MarineIn Stock: 1567205560-2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DBUH-25P are identified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

• Connector style: D-Sub
• Connector type: Plug configuration with male pins
• Position count: 25 positions
• Row configuration: 2 rows
• Shell size: 3 (DB, B)
• Mounting type: Free Hanging (In-Line)
• Termination method: Crimp
• Contact type: Signal

The substitute parts listed maintain these core parameters, ensuring mechanical fit and electrical interface compatibility. Variations in shell finish material, contact finish thickness, current rating, and operating temperature ranges are secondary parameters that may differ between the main part and substitutes while preserving functional equivalence for standard D-Sub applications.

Parameter Comparison

Engineering Selection Recommendations

DBUH-25P (Primary Part): This part maintains active production status with the highest inventory level (1825 units). It is ROHS3 compliant and operates across the widest temperature range (-65°C to 125°C). The 5A current rating and gold contact finish provide standard performance for general D-Sub applications. This part is the preferred selection when availability permits.

205560-2 (TE Connectivity): This substitute provides equivalent mechanical and electrical interface compatibility with crimp termination matching the DBUH-25P. It offers a higher current rating (7.5A) and maintains active production status with 1464 units in inventory. However, this part is RoHS non-compliant and operates at a reduced lower temperature limit (-55°C versus -65°C). Selection of this part is appropriate for applications where RoHS compliance is not required and the operating temperature range does not extend below -55°C.

1757819-3 (TE Connectivity): This part provides housing-only configuration without integrated contacts. It is ROHS3 compliant and maintains the same shell size and position count. This part is suitable only for applications where contacts are sourced separately or where housing replacement is required independent of contact assembly.

205166-1 (TE Connectivity): This part provides housing-only configuration without integrated contacts. It is RoHS non-compliant and operates within -50°C to 125°C temperature range. The cadmium plating finish and housing-only design limit its application to scenarios requiring separate contact sourcing. REACH compliance status indicates this part is affected by REACH regulations.

Frequently Asked Questions (FAQ)

Q: Can 205560-2 be used as a direct replacement for DBUH-25P?

A: 205560-2 provides mechanical and electrical interface compatibility as a plug connector with 25 positions, 2 rows, crimp termination, and shell size 3 (DB, B). Both parts feature gold-plated contacts and male pin configuration. The primary differences are shell finish material (cadmium versus clear chromate plated zinc), current rating (7.5A versus 5A), and RoHS compliance status. Direct substitution is feasible for applications where RoHS non-compliance is acceptable and operating temperatures remain above -55°C.

Q: What is the difference between 1757819-3 and 205560-2?

A: 1757819-3 is a housing-only component without integrated contacts, while 205560-2 is a complete plug connector with crimp-terminated male pins. 1757819-3 is ROHS3 compliant; 205560-2 is RoHS non-compliant. These parts serve different assembly requirements: 1757819-3 requires separate contact installation, while 205560-2 is ready for wire termination.

Q: Are 1757819-3 and 205166-1 interchangeable?

A: Both 1757819-3 and 205166-1 are housing-only D-Sub plugs with 25 positions and shell size 3 (DB, B). They differ in shell finish (yellow chromate plated zinc versus cadmium plated), RoHS compliance status, and operating temperature range. Mechanical fit is equivalent, but compliance and environmental specifications differ. Selection depends on application requirements for RoHS compliance and operating temperature limits.

Q: What wire gauge compatibility exists for these connectors?

A: The DBUH-25P specifies 20-28 AWG wire gauge for crimp termination. Wire gauge specifications are not provided for the TE Connectivity housing-only parts (1757819-3 and 205166-1) as they do not include integrated contacts. For 205560-2, wire gauge specifications are not provided in the available data.

Q: Does shell finish material affect electrical performance?

A: Shell finish material (clear chromate plated zinc, yellow chromate plated zinc, or cadmium plated) provides corrosion protection and environmental sealing. All finishes maintain equivalent electrical interface performance for signal transmission. Selection between finishes depends on environmental exposure requirements and compliance constraints (cadmium plating is subject to REACH restrictions).

Q: What is the significance of the current rating difference between DBUH-25P and 205560-2?

A: DBUH-25P is rated for 5A continuous current, while 205560-2 is rated for 7.5A. The higher rating on 205560-2 indicates greater current-carrying capacity. For applications requiring currents between 5A and 7.5A, 205560-2 provides additional margin. For applications at or below 5A, both parts are functionally equivalent.