DBMN21C1PMA101

Shell Material, Finish:	Steel, Yellow Chromate Plated Cadmium
Backset Spacing:	--
Contact Material:	Copper Alloy
Wire Gauge:	--
Housing Material:	Polycyclohexylenedimethylene Terephthalate (PCT)
Contact Form:	--
Color:	Black
Voltage Rating:	--
Operating Temperature:	-55°C ~ 125°C
Current Rating:	5A, 7.5A
Material Flammability Rating:	UL94 V-0
Ingress Protection:	--
Contact Finish Thickness:	Flash
Contact Finish:	Gold
Series:	Combo D®, D*M
Features:	Board Lock, Shielded
Termination:	Solder
Flange Feature:	Mating Side, Female Screwlock (4-40)
Mounting Type:	Panel Mount, Through Hole
Contact Type:	Coax and Signal
Shell Size, Connector Layout:	3 (DB, B) - 21W1
Number of Rows:	2
Number of Positions:	21 (20 + 1 Coax)
Connector Type:	Plug, Male Pins
Connector Style:	D-Sub, Combo
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

D-Sub (or D-subminiature) connectors are a subset of electrical connectors typically used in electronic and computer equipment. They are standardized as a common style of connectors with pins or sockets arranged in a specific pattern in two or more rows, which allows them to be mated with a corresponding female connector. The D-Sub Connector family includes D-subminiature, D-shaped, and D-type connectors, which can carry various types of signals. One such connector is the DBMN21C1PMA101, which is one of the most popular models in this family. In this article, we will explore its application field and working principle.

Application Field

The DBMN21C1PMA101 is a high-performance standard D-Sub connector that can be used in a variety of applications. It is commonly found in embedded computer systems, networking, and telecommunications equipment. In addition, this type of connector can also be used in industrial automation, medical, automotive, avionic, and military applications. It can be used for applications that require reliable performance in extreme conditions such as dust, humidity, and high vibration. The DBMN21C1PMA101 has an insulation displacement contact (IDC) system that enables up to fifteen-hundred mating cycles, with a standard operating temperature range of -55°C to +125°C. It is available in both a male (pin) and female (socket) version, with configurable pins from 3 to 21. This allows for a variety of signal and power combinations to be used.

Working Principle

The DBMN21C1PMA101 is designed to provide a secure, reliable connection between two or more devices or circuits. Its working principle is based on mechanical retention, insulation displacement, and electromagnetic interference (EMI) shielding.Mechanical retention is achieved by the combination of high-precision machined contacts and male and female coupling springs, which grip the connector shells and reliably maintain the connection. The ridges on the male pins also help to facilitate easy alignment and insertion. The insulation displacement contact system prevents the risks associated with poor contact continuity and crosstalk caused by variations in contact resistance. It also provides reliable contact that remains stable over time, and is unaffected by vibration. The gold plated contacts also help to reduce electrical contact resistance and ensure an optimal connection.The contact interface of the DBMN21C1PMA101 is protected from EMI by an electrically conductive shell construct. This ensures reliable performance while eliminating electromagnetic interference and crosstalk. It also meets grounded contact safety requirements for high-voltage applications.

Conclusion

The DBMN21C1PMA101 is a high-performance standard D-Sub connector that is designed for a wide range of applications. Its features include a reliable mechanically retained connection, insulation displacement contact system, and EMI shielding. All these features help ensure a secure and reliable connection between two or more devices or circuits.

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