91921-21125LF

Series:	Conan™, MezzSelect™
Packaging:	Tube
Part Status:	Active
Connector Type:	Receptacle, Outer Shroud Contacts
Number of Positions:	25
Pitch:	0.039" (1.00mm)
Number of Rows:	2
Mounting Type:	Surface Mount
Features:	Solder Retention
Contact Finish:	Gold or Gold, GXT™
Contact Finish Thickness:	15.0µin (0.38µm)
Mated Stacking Heights:	4.15mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 7.52mm
Height Above Board:	0.129" (3.28mm)

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IntroductionThe 91921-21125LF type contains a series of rectangular connectors, which are typically used for board-to-board interconnects. These connectors are manufactured by Delphi Automotive and are part of its Critical Application series. These connectors are based on the same technology as Edge Type rectangular connectors. Edge Type connectors have flexibility and physical size and are designed to be used in applications such as industrial automation openings and LED lighting. This type of connector is often referred to as a mezzanine connector. With 91921-21125LF connectors, the physical space needed to install the connectors is significantly reduced because the components are spaced closer together compared to other types of connectors. Design FeaturesThe 91921-21125LF connectors feature several design elements that make them suitable for use in harsh environments. They are resistant to harsh chemicals and extreme temperatures. They are rated at IPx6 for dust protection and at IPx7 for water protection. A unique feature of the 91921-21125LF connectors is the contactless inner shield. This inner shield ensures that contact noise is significantly reduced when using the connector. The shield also allows for EMI shielding and protects the contacts from damage caused by moisture and oxidation. Application FieldThe 91921-21125LF type of connector is used in a variety of automotive and industrial applications. The connectors are commonly used in the automotive industry for the powertrain, body, and fuel management systems. In addition, these connectors can be used in data acquisition, control systems, instrumentation, and a variety of harsh environment applications. Working PrincipleThe 91921-21125LF type of connector is designed for board-to-board mating. The connectors are a double-row surface-mount design and feature staggered contact pads. The contacts are arranged in a line such that each contact is assigned a specific position. The contacts are designed with a low-profile and are plated in gold for durability. The connectors feature a positive latch system to ensure a secure connection. When the connectors are mated, the latching mechanism is engaged and ensures a reliable connection. In addition, the connector has an internal locking tab that prevents accidental disconnection. ConclusionThe 91921-21125LF type of rectangular connector is a reliable and durable solution for board-to-board interconnects. The connectors are designed to be used in harsh environments and are resistant to chemicals and extreme temperatures. The latching mechanism provides a secure connection, and the inner shield protects the contacts from damage caused by moisture and oxidation. These connectors are commonly used in a variety of automotive and industrial applications and are designed for reliability and durability.

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