89891-403HLF

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Rectangular Connectors - Headers, Receptacles, Female Sockets have been a mainstay of today’s industrial and consumer electronics. Connectors are ubiquitous in the product design industry and continue to become increasingly more functional and diverse. 89891-403HLF is a standard rectangular connector that is commonly used in today’s projects. This article will cover the following topics: application field, working principle, electrical, physical and performance characteristics.

Application Field

89891-403HLF is a low-profile, high-density single-row header connector with a 2mm pitch. It is typically used in board-to-board and wire-to-board placements. It is also extensively used in telecommunications, consumer electronics, mobile devices, medical devices, automotive, and machine vision applications. It is particularly useful in designs needing reliable data connectivity due to its high-speed, low-power and tight space requirements.

Working Principle

89891-403HLF is based on Quick Disconnect (QD) technology, which is a common and widely accepted design method for electrical connectors. This type of connector utilizes spring-loaded terminals that can be quickly and easily connected or disconnected without the need for tools or required mechanical engagement. Once the terminals are engaged, secure and reliable electrical connection is established. In a QD connector, terminals are held in place by a tool-less retainer that helps to hold the electrical connection in place until intentionally released.

Electrical Characteristics

89891-403HLF features eight electrical contacts with an operating voltage of 50V DC and an operating temperature range of -25℃ to +85℃. It offers a maximum current rating of 2A and has a dielectric withstanding voltage of 500V AC. The maximum insulation resistance is 100MΩ. The contact resistance is <1.5mΩ.

Physical Characteristics

89891-403HLF is designed with a 0.5mm pitch, a 2 mm centerline and 1mm stack height. It has a 1.30mm profile with approximately 11.2N retention force. Its durable, low-profile construction stands up to tough industrial and automation applications while fitting into tight enclosure spaces. 89891-403HLF is made of a sturdy blend of thermoplastic and aluminum. It has a strong shell to prevent electromagnetic interference (EMI) and radio-frequency interference (RFI). Its four-finger contact design ensures reliable contact retention and a long-term connection.

Performance Characteristics

This connector is designed to meet stringent reliability testing, including high-temperature cycling, moisture resistance tests, vibration tests and shake tests. It has UL 94V-0 flammability rating, making it suitable for a variety of applications. It can withstand 1,000 mating cycles, with an electrical life of 1,500 cycles. It is also RoHS compliant. 89891-403HLF is capable of providing high-speed and reliable data connectivity with low-cost and low-maintenance requirements.

In conclusion, 89891-403HLF is a low-profile, high-density single-row header connector with a 2mm pitch. It is used in board-to-board and wire-to-board placements, particularly in designs needing reliable data connectivity due to its high-speed, low-power and tight space requirements. This connector features an operating voltage of 50V DC, an operating temperature range of -25℃ to +85℃, and a maximum current rating of 2A. It is constructed of thermoplastic and aluminum with a strong shell to prevent EMI and RFI. 89891-403HLF can withstand 1,000 mating cycles and is RoHS compliant.

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