LTMM-121-01-S-D

Series:	Flex Stack, LTMM
Packaging:	Tube
Part Status:	Active
Connector Type:	Header
Contact Type:	Male Pin
Pitch - Mating:	0.079" (2.00mm)
Number of Positions:	42
Number of Rows:	2
Row Spacing - Mating:	0.079" (2.00mm)
Number of Positions Loaded:	All
Style:	Board to Board
Shrouding:	Shrouded - 4 Wall
Mounting Type:	Through Hole
Termination:	Solder
Fastening Type:	Push-Pull
Contact Length - Mating:	0.100" (2.54mm)
Contact Length - Post:	0.090" (2.29mm)
Overall Contact Length:	--
Insulation Height:	0.190" (4.83mm)
Contact Shape:	Square
Contact Finish - Mating:	Gold
Contact Finish Thickness - Mating:	30.0µin (0.76µm)
Contact Finish - Post:	Tin
Contact Material:	Phosphor Bronze
Insulation Material:	Liquid Crystal Polymer (LCP)
Features:	Keying Slot
Operating Temperature:	-55°C ~ 105°C
Ingress Protection:	--
Material Flammability Rating:	--
Insulation Color:	Black
Current Rating:	--
Voltage Rating:	--
Mated Stacking Heights:	--
Contact Finish Thickness - Post:	--
Applications:	--

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LTMM-121-01-S-D: Overview & Applications

LTMM-121-01-S-D is rectangular connectors’ header, male pins typically used for electrical interconnects in electronic devices, such as computers, phones, and appliances. This type of connector is very versatile and can be used for both signal transmission and power distribution.

Design

LTMM-121-01-S-D rectangular connectors feature metal pins and a two-piece plastic housing. The male pins have four circular contact surfaces that form a square shape and have a center-to-center distance between the pins of 3.96 mm. The metal pins are plated with nickel, while the housing is made of black polyester. The pins are arranged in a row and the housing is designed to fit 1.27 mm pitch PCBs. The plastic housing offers stability on the mounting surface and prevents bending of the contacts. LTMM-121-01-S-D rectangular connectors have a latching mechanism for secure mating. This latching mechanism is particularly useful for applications where multiple connectors are joined together. Additionally, the connectors offer a low profile design with low contact resistance that ensures high current carrying capacity.

Applications & Working Principle

LTMM-121-01-S-D connectors are most commonly used in consumer electronics, such as phones, computers, and appliances. They are also used in automotive, industrial, and telecommunications applications.The connectors consist of four pins that serve as the electrical contacts for signal and power transmission. When the connector is mated with its counterpart, the pins are pushed in and make electrical contact with each other. This creates an electrical circuit that allows the transmission of signals and power. The latching mechanism also ensures that the connections between the connectors remain secure and do not become loose.

Conclusion

In conclusion, the LTMM-121-01-S-D rectangular connectors are a versatile and reliable electrical interconnect solution. They offer a low profile design, excellent contact resistance, and a latching mechanism for secure connections. The connectors are typically used in consumer electronics, automotive, industrial, and telecommunications applications.

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