3431-5203

Operating Temperature:	-55°C ~ 105°C
Insulation Height:	0.340" (8.64mm)
Contact Shape:	Square
Contact Finish - Mating:	Gold
Contact Finish Thickness - Mating:	30.0µin (0.76µm)
Contact Finish - Post:	Tin-Lead
Contact Material:	Copper Alloy
Insulation Material:	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Features:	Keying Slot, Mounting Flange
Overall Contact Length:	--
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Insulation Color:	Black
Current Rating:	1.75A
Voltage Rating:	--
Mated Stacking Heights:	--
Contact Finish Thickness - Post:	200.0µin (5.08µm)
Applications:	--
Number of Positions Loaded:	All
Packaging:	Bulk
Part Status:	Active
Connector Type:	Header
Contact Type:	Male Pin
Pitch - Mating:	0.100" (2.54mm)
Number of Positions:	34
Number of Rows:	2
Row Spacing - Mating:	0.100" (2.54mm)
Series:	3000
Style:	Board to Board or Cable
Shrouding:	Shrouded - 4 Wall
Mounting Type:	Through Hole, Right Angle
Termination:	Solder
Fastening Type:	Latch Lock/Eject Hooks, Short
Contact Length - Mating:	0.240" (6.10mm)
Contact Length - Post:	0.155" (3.94mm)

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Introduction

Rectangular connectors are one of the most popular types of electrical connectors. These connectors are used in a wide range of applications, from simple switches to complex systems. The 3431-5203 series is a type of rectangular connectors from Harwin. It consists of a range of headers, male pins, and accessories designed for easy and reliable connections of both power and signal. This article will discuss the 3431-5203 series rectangular connectors, their multiple applications, and working principles.

What Are 3431-5203 Series Connectors?

The 3431-5203 series are high-performance connectors from Harwin. These connectors combine a unique design, with excellent electrical and mechanical performance. They are designed to provide a reliable and secure connection for both power and signal when used in harsh environments. The 3431-5203 series consists of two component pieces, the 3431 headers and 5203 male pins. The 3431 headers are the female connectors that consist of multiple contacts and a matching locking pin. The 5203 male pins are the male counterparts that plug into the 3431 headers. The connectors are available in a variety of sizes, with up to 15 pins per row. The size of the connector is determined by the number of pins, and the spacing of the pins. All connectors have a space saving feature, with a thickness of only 5mm. The series also features a double-sided, two-piece construction that allows the components to be connected with an optional locking feature.

Applications of the 3431-5203 Series Connectors

The 3431-5203 series connectors are used in a variety of applications, including:

• Industrial and Automotive Electronics
• Medical Equipment
• HVAC and Lighting Controls
• Airplane and Ship Controls
• Robotics and Military Equipment

The 3431-5203 series connectors are designed to be robust and reliable, making them ideal for demanding applications. The connectors are rated for up to 500V and 10A, making them suitable for both power and signal applications. The connectors also feature nickel-plated contacts that are corrosion resistant and require no maintenance.

Working Principle of the 3431-5203 Series Connectors

The 3431-5203 series connectors feature a two-piece design that securely connects the male and female components. To connect the two components, the 5203 male pins are inserted into the 3431 headers. The pins are held in place by the locking pin, which is tightened to lock the connector in place. When the locking pin is tightened, the contact surfaces are compressed, providing a secure connection between the two components. The 3431-5203 series connectors are designed to be low-profile and space-saving. The connectors have an integrated flange, which prevents over-tightening of the locking pin and ensures that the connector is fully seated.

Conclusion

The 3431-5203 series connectors from Harwin are a reliable and durable type of rectangular connectors. They are designed for easy and secure connection of both power and signal, and are suitable for a wide range of applications. The connectors feature a two-piece construction that allows them to be quickly connected and locked with an optional locking feature. The connectors are rated for up to 500V and 10A, and feature nickel-plated contacts for lasting performance.

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