ESQT-111-03-M-5-400

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Application Field and Working Principle of ESQT-111-03-M-5-400

The ESQT-111-03-M-5-400 rectangular connectors are specially used in many areas for wiring and/or connectivity with a variety of device components, such as in medical, communication, auto-control, industrial control and power systems. The rectangular connectors have a distinct design that maximizes the current transmission signal density. This has enabled this type of rectangular connector to become a standard choice for many fields that require high-reliability and high-density wiring.

The specific features of ESQT-111-03-M-5-400 rectangular connectors are:

• Compact, slim design for high-density applications.
• Extended, low profile connector design.
• Receptacle or plug applicable connectors.
• Mountable receptacle.
• Impact and vibration resistant.
• UL approved.

Although the ESQT-111-03-M-5-400 rectangular connectors design are the same throughout various fields, each different wiring field has a different applicable range and working principle. The wiring field mainly includes ferrous metal and non-ferrous metal as the substrate, the circuit board as the core of the circuit, the fiber cable as the signal transmission medium, and the shielded cable as the main line.

Ferrous Metal Wiring Field

The ESQT-111-03-M-5-400 rectangular connectors used in the ferrous metal wiring field generally use screws for securing and the number of contacts is usually two or four. The contact pin is directly inserted into the crimp eyelet of the wire without other treatment, so that the pressure on the terminal is greatly improved, and the contact force is upgraded. The wires and terminals are fixed closely, and the connecting force is strong. In addition, the terminals used in this wiring field should be preferably of the male-type with the cover preventing the contact fingers from buckling, and the insulation sleeve preventing the fasteners from falling out of the conduit.

Non-ferrous Metal Wiring Field

In the non-ferrous metal wiring field, the terminals are u-shaped, and the advantages of the u-shaped terminals are the same as the ferrous metal wiring field. In order to improve the contact reliability, the contact fingers are welded to the surface of the substrate, and the insulation sleeve is used to prevent the terminals from falling out of the conduit. The cover also plays a role in protecting the contact fingers from being easily buckled. This increases the contact pressure and makes connection more stable.

Circuit Board Wiring Field

The most common application of the ESQT-111-03-M-5-400 rectangular connectors in the circuit board wiring field is in the types of “plug into the board” and “plug an another board”. This type of connector is mainly used in the circuit boards in medical equipment and communication equipments. The contact pins have good contact performance with the board, good flexibility, and are not easily deformed. And the cover serves the purpose of preventing misoperation and ensuring safety.

Fiber Cable Wiring Field

Fiber cables transmit signals in the form of optical waves, mainly relying on the dielectric optical wave guide principle in which light is guided along a narrow path by the principle of total internal reflection. ESQT-111-03-M-5-400 rectangular connectors used in the fiber cable wiring field generally include a simplex type, a duplex type and a combination type. The contacts for the fibers are available in both pre-200-um and pre-900-um, while the header design is to optimize the current transmission signal density.

Shielded Cable Wiring Field

The ESQT-111-03-M-5-400 rectangular connectors used in the shielded cable wiring field generally requires the terminal to be press-fitted or straped instead of welding. The crimping method and/or the soldering method can be used to fix the connected wires and ensure a reliable connection , while the cover and insulation sleeve serve the purpose of dust-proof, moisture-proof and shockproof. The contact pins are not easily deformed and have good contact performance, no loose connections, and ensure electrical insulation, which increases their contact reliability.

In conclusion, the ESQT-111-03-M-5-400 rectangular connectors are used in numerous wiring fields with their distinct design and structure, which can give a better performance in many areas such as medical, communication, auto-control, industrial control and power systems. Therefore, they have become a popular choice for many high-reliability and high-density wiring.

The specific data is subject to PDF, and the above content is for reference