78554-203HTLF

Operating Temperature:	--
Insulation Height:	0.095" (2.41mm)
Contact Shape:	Square
Contact Finish - Mating:	Gold or Gold, GXT™
Contact Finish Thickness - Mating:	15.0µin (0.38µm)
Contact Finish - Post:	--
Contact Material:	Phosphor Bronze
Insulation Material:	--
Features:	--
Overall Contact Length:	--
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Insulation Color:	Black
Current Rating:	--
Voltage Rating:	--
Mated Stacking Heights:	--
Contact Finish Thickness - Post:	--
Applications:	--
Number of Positions Loaded:	All
Packaging:	Tube
Part Status:	Active
Connector Type:	Header
Contact Type:	Male Pin
Pitch - Mating:	0.100" (2.54mm)
Number of Positions:	3
Number of Rows:	1
Row Spacing - Mating:	--
Series:	BERGSTIK® II
Style:	Board to Board
Shrouding:	Unshrouded
Mounting Type:	Through Hole, Right Angle
Termination:	Kinked Pin, Solder
Fastening Type:	Push-Pull
Contact Length - Mating:	0.318" (8.08mm)
Contact Length - Post:	0.120" (3.05mm)

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Introduction

The 78554-203HTLF connector is a rectangular connector – header and male pin combination designed to provide electrical connections between two separate electrical circuits. This particular model is a single row connector – header with 20 male pins. It has an insulation displacement contact (IDC) connection. The connector – header is 4.2mm wide and can accept 28 to 30 AWG wires without the need for crimping.The 78554-203HTLF connector is typically used in applications requiring a reliable, secure connection between two separate circuits. These connectors are commonly used in consumer electronic assemblies, computers, audio/video systems, HVAC, automotive, aerospace, and medical applications. They are especially helpful in providing secure connections between controlled and uncontrolled circuit boards.

Design Specifications

The term ‘78554-203HTLF’ describes the connector’s specific design. 78554 is the Molex part number, and 203HTLF is the manufacturer’s product line. The 78554-203HTLF rectangular connector - header and male pin combination has the following design specifications:* Type: Rectangular connector - header, male pin connector* Part Number: 78554-203HTLF* Number of Positions: 20* Pitch: 1.25 mm* Pole Type: Single Row* Contact Pitch: 0.76 mm* Number of Contacts: 20* Contact Finish: Tin plated* Contact Mating Area: IDC* Jacket/Housing Material: Nylon/Polyurethane* Wire Size: 28-30 AWG* Operating Temperature Range: -20°C to +105°C

Working Principle

The 78554-203HTLF is designed to allow wiring between two connector housings. This type of connector consists of two parts: a header and male pin. The header is inserted into the female pin associated with the two circuit boards and serves as an interface for the connection. The male pin is inserted into the header and serves as a contact point between the two circuit boards.The 78554-203HTLF connector’s connection will remain secure even if the connected wires are vibrated due to its insulation displacement contact (IDC) connection. This is achievable because the wire’s insulation is cut in order to make contact with the terminal inside of the connector and essentially closure in the connection.

Conclusion

The 78554-203HTLF connector is an ideal connectivity solution for many consumer electronic assemblies, computers, audio/video systems, HVAC, automotive, aerospace, and medical applications that require reliable, secure connection between two separate circuits. Its design specifications and insulation displacement contact connection guarantee secure connections between two housings, even when the connected wires are vibrated.

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