Shell Material, Finish:	Steel, Tin-Nickel Plated
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:	7.5A, 40A
Material Flammability Rating:	UL94 V-0
Ingress Protection:	--
Contact Finish Thickness:	30.0µin (0.76µm)
Contact Finish:	Gold
Series:	Combo D®, D*M
Features:	Mounting Brackets, Shielded
Termination:	Solder
Flange Feature:	Board Side (4-40)
Mounting Type:	Panel Mount, Through Hole, Right Angle
Contact Type:	Signal and Power
Shell Size, Connector Layout:	3 (DB, B) - 9W4
Number of Rows:	2
Number of Positions:	9 (5 + 4 Power)
Connector Type:	Receptacle, Female Sockets
Connector Style:	D-Sub, Combo
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

D-Sub connectors are electrical connectors typically used in computers, digital imaging, and other electronic equipment. Many different varieties exist, depending on the specific application. The DB9P4S1A7NA191A197 is one type of D-Sub connector used for RS-232 serial communication. It has 9 pins and 4 shell sizes, which make it suitable for a wide range of applications. In this article, we will discuss the application fields and working principle of this connector.

History

D-Sub connectors were initially developed in the 1950s as a way to connect computers and later used in a range of equipment including test and measurement devices. Over the years, they have seen many revisions and their popularity has only grown. In recent years, they have become a standard in the electronics industry.

Application Field

The DB9P4S1A7NA191A197 is suitable for RS-232 serial communication. It is also used in many industrial and consumer appliances such as barcode scanners, medical equipment, and GPS navigation systems. It is often used in computers for connecting external devices like modems, keyboards, and mice.

Connector Structure

The DB9P4S1A7NA191A197 has 9 pins that are arranged in two rows. The pins are surrounded by a plastic shell that is available in four different sizes ranging from 9.9mm to 13.2mm. The connector also has a jacket or locking mechanism that helps secure the connection.

Working Principle

The DB9P4S1A7NA191A197 connects two devices using a 9 pin connector. The electrical signals travel along the cable, into the connector, and then back out of the connector into the two different devices. The pins that are used depend on the application. In most cases, the pins are used for data communication such as for transmitting and receiving data.

Conclusion

The DB9P4S1A7NA191A197 is a type of D-Sub connector that is used for RS-232 serial communication. It has 9 pins and 4 different shell sizes that make it suitable for a wide range of applications. The connector works by connecting two devices using a 9 pin connector and sending and receiving data signals along the cable. It is a reliable connector that is used in many industrial and consumer appliances.

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