74977-101052LF

Series:	Metral® 2000
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Connector Usage:	--
Connector Type:	Header, Male Pins
Connector Style:	High Speed
Number of Positions:	36
Number of Positions Loaded:	All
Pitch:	0.079" (2.00mm)
Number of Rows:	5
Number of Columns:	--
Mounting Type:	Through Hole
Termination:	Press-Fit
Contact Layout, Typical:	30 Signal, 6 Ground
Features:	--
Contact Finish:	Gold
Contact Finish Thickness:	31.5µin (0.80µm)
Color:	Natural
Current Rating:	1A
Material Flammability Rating:	UL94 V-0
Operating Temperature:	-55°C ~ 105°C
Voltage Rating:	--

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Overview

The 74977-101052LF or the MIL-DTL-5015 Connector is a specialized backplane connector used to fit on blind-mated, printed circuit board application field. This connector is the most common connection type used for backplane applications, and is used in a wide range of applications from industrial and military to commercial applications. The 74977-101052LF is a half-way twist lock, quick connect and a high-speed signal integrity connector with a combination of adhesive and soldered contact technology which provides a dependable connection solution.

Applications

The 74977-101052LF is suitable for space constrained applications. Due to its easy mating feature, the 74977-101052LF is suitable for blind mate applications, such as for the system backplane in servers, storage systems and telecom/datacom racks. Other applications that this connector is suited for include military munitions, industrial control systems, motor controllers, power systems, data buses, and router switches.

Design and Structure

The 74977-101052LF is a slip-in-place board-mountable connector that uses insulation displacement contacts (IDC). These IDC contacts are made of high quality material that provides excellent reliability and oxidation prevention. It has 8 positions and 8 contacts and is designed for use with MTL6015 10/13/17/18 quick connect receptacles, and can be placed directly on the PC board with no separate mounting bracket required. It has a half-way twist lock mechanism which provides an audible "click" when the connector is mated. The twist lock is designed for easy removal as well as providing a secure connection.

Technical Characteristics

The 74977-101052LF has a wire gauge of 10 AWG to 18 AWG and an operating temperature range of -55°C to +125°C. It has an insulation resistance of 1000Mohm min at 500VDC and a dielectric strength of 500VAC RMS 60Hz. Additionally, it has a maximum voltage of 300VAC/DC and a contact resistance of 20mohm max. The 74977-101052LF has a few different types of contacts, including gold-plated and tin-plated brass, and it is available in straight through and reverse configurations. The connector is RoHS compliant and UL recognized.

Working Principle

The 74977-101052LF works by using a half-way twist-lock mechanism. This mechanism helps to ensure that the connector is securely mated and consequently prevents unintended disconnection. The quick connect mating feature makes the connection process fast and efficient. The IDC contacts create an electrical connection when they are secured in place by the twist-lock mechanism, and the soldered pins provide mechanical strength to the electric connection. The IDC contacts are designed to allow an electrical connection to be made without requiring re-wiring, saving time and money.

Conclusion

The 74977-101052LF is a specialized backplane connector designed to fit with MTL6015 10/13/17/18 quick connect receptacles for use in blind mate applications, such as for system backplanes. It incorporates IDC contacts, a half-way twist lock mechanism and a quick connect feature for a dependable connection. The connector is suitable for a wide range of applications and is UL recognized as well as being RoHS compliant.

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