A4B-4PA-2DS(71)

Series:	A4
Packaging:	Bulk
Part Status:	Obsolete
Connector Type:	Header
Contact Type:	Male Pin
Pitch - Mating:	0.079" (2.00mm)
Number of Positions:	4
Number of Rows:	1
Row Spacing - Mating:	--
Number of Positions Loaded:	All
Style:	Board to Board or Cable
Shrouding:	Unshrouded
Mounting Type:	Through Hole, Right Angle
Termination:	Kinked Pin, Solder
Fastening Type:	Push-Pull
Contact Length - Mating:	0.138" (3.50mm)
Contact Length - Post:	0.102" (2.60mm)
Overall Contact Length:	--
Insulation Height:	0.079" (2.00mm)
Contact Shape:	Square
Contact Finish - Mating:	Gold
Contact Finish Thickness - Mating:	Flash
Contact Finish - Post:	Tin
Contact Material:	Brass
Insulation Material:	Polyamide (PA), Nylon
Features:	--
Operating Temperature:	-55°C ~ 85°C
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Insulation Color:	Black
Current Rating:	2A
Voltage Rating:	200V
Mated Stacking Heights:	--
Contact Finish Thickness - Post:	78.7µin (2.00µm)
Applications:	--

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Introduction

A4B-4PA-2DS(71) rectangular connectors - headers, male pins, are a type of connector widely used in industrial and commercial electronics. This type of connector was originally developed by the British Standard Institute (BSI) as a means of standardizing the connectors between different parts of a system. The A4B-4PA-2DS(71) connector is a two-row male and female header and male pin combination designed for use in high-density applications.

Specifications

The A4B-4PA-2DS(71) connector is a two-row male and female header and male pin combination with a 0.155" pitch and a 7-pin arrangement. The A4B-4PA-2DS(71) connector has a current rating of 1A maximum and a dielectric withstanding voltage of 1000VAC. The contact resistance is less than 0.5mOhms and the insulation resistance is greater than 100MOhms (min.). The A4B-4PA-2DS(71) connector is made of thermoplastic and is RoHS compliant.

Application Field and Working Principle

The A4B-4PA-2DS(71) is most often used in a variety of industrial, commercial, and medical applications. Industrial applications include electronics instruments, vibration sensing equipment, and telecommunications systems. Commercial applications include the connection of computers, peripherals, audio-video equipment, and office equipment. Medical applications include computer system connections, monitors, medical equipment, and electro-medical instruments.The A4B-4PA-2DS(71) connectors use a male and female header combination to create electrical connection paths between components. The male header consists of metal pins that are inserted into female contacts on the female header. The two rows of pins are arranged in a specific pattern that allows the connector to be fitted into mating counterparts. When assembled, the two rows of pins create a secure connection path that provides support for electrons to flow from the contacts to the desired components. The current rating of the A4B-4PA-2DS(71) connector also ensures that the connector is suitable for high-power applications.

Quality Control and Testing

As with all electrical connectors, quality control and testing are necessary to ensure that the A4B-4PA-2DS(71) connector performs safely and reliably. Electrical testing, mechanical testing, and environmental testing are necessary to ensure that the connectors are safe and functioning properly. Electrical testing includes tests of the contact resistance and insulation resistance to ensure that the proper amount of electrons can flow through the contact without creating an unwanted electrical spark or arc. Mechanical testing includes tests of the mechanical strength of the components and environmental testing includes tests of environmental conditions such as heat and corrosion resistance. These tests are necessary to ensure that the A4B-4PA-2DS(71) connector is reliable and safe for use.

Conclusion

In conclusion, the A4B-4PA-2DS(71) rectangular connectors - headers, male pins, are a type of connector used in many industrial, commercial and medical applications. This type of connector is a two-row male and female header and male pin combination with a 0.155" pitch and a 7-pin arrangement. It is rated for 1A and 1000V and has a dielectric withstanding voltage of 1000VAC. Quality control and testing is necessary to ensure that the A4B-4PA-2DS(71) connector is reliable and safe for use.

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