RF连接器
产品（2)
6605454-1 - 1-Port RJ45 10/100 Base-T Magjack | Bel Fuse
The TRP Connector / Bel Fuse 6605454-1 is a single-port, through-hole RJ45 integrated magnetics connector (commonly known as a MagJack) supporting 10/100 Base-T Ethernet with AutoMDIX capability. It integrates the RJ45 jack, the 1:1 Ethernet isolation transformer, and the common-mode choke into a single right-angle PCB-mountable module, eliminating the need for discrete magnetics on the PHY side of an Ethernet design. The connector is part of the MAG45 product family and uses an 8-position, 8-contact (8P8C) contact layout. A MagJack is a type of modular connector that combines the mechanical RJ45 receptacle with the magnetic isolation required between the Ethernet PHY transceiver and the cable-side interface. By integrating the 1500 VAC isolation transformer and the common-mode filtering choke into the connector body, designers save PCB area, simplify the BOM, and gain a cleaner, more repeatable signal path. MagJacks sit in the connectivity hierarchy between standard RJ45 connectors (no magnetics) and full Ethernet front-end modules, and they are the de-facto solution for industrial, telecom, and embedded-networking equipment. The 6605454-1 is rated for 10/100 Mbps operation (Fast Ethernet), with through-hole right-angle (RA) PCB termination suitable for wave soldering and standard 2.54 mm pin pitch. Its integrated magnetics support AutoMDIX, meaning the PHY can automatically detect and correct TX/RX pair polarity, removing the need for crossover cables. Typical operating conditions include an extended industrial temperature range, making the part suitable for factory-floor equipment, outdoor enclosures, and ruggedized switches. Typical applications include industrial Ethernet switches, factory automation controllers, IP surveillance cameras, network interface cards, and serial-to-Ethernet gateways. The MAG45 footprint is widely supported across reference designs from leading Ethernet PHY manufacturers, which simplifies hardware bring-up and software driver integration. When laying out a board with the 6605454-1, follow standard Ethernet magnetics layout practices: keep the PHY-to-MagJack traces short and matched, use a 75 ohm differential impedance (USB/100Base-TX standard), and provide a chassis ground connection to the connector shield for ESD robustness. The integrated magnetics approach trades design flexibility for BOM simplicity and reduced EMI susceptibility. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes not found in the manufacturer datasheet, giving procurement and design engineers a single reference for sourcing and engineering decisions.
PE33448-36 - 75 Ohm BNC-BNC RG-6 36" Cable | Pasternack
The Pasternack PE33448-36 is a 75 Ohm coaxial cable assembly featuring BNC female connectors on both ends, built with RG-6 cable and supplied at a 36.00 inch (914.40 mm) length. It is designed for video, broadcast, and RF signal routing applications where a reliable BNC-to-BNC interconnect is required. The assembly uses the industry-standard RG-6 coaxial medium with a 75 Ohm characteristic impedance optimized for video distribution, SDI transport, and broadband RF signaling. A coaxial cable assembly is a pre-terminated length of coaxial transmission line with connectors attached to one or both ends, used to carry RF or baseband signals between equipment while maintaining controlled characteristic impedance. Within the broader interconnect hierarchy, coaxial cable assemblies sit between RF connectors (BNC, SMA, N-Type) and complete RF systems (test instrumentation, broadcast chains, base stations). The RG-6 designation places this assembly in a video/broadband category alongside RG-59 (thinner, lower-shielded) and RG-11 (thicker, lower-loss) variants; RG-6 is the de facto standard for cable television, satellite IF, and SDI video runs. Key features include double-shielded RG-58 (corrected: RG-6) construction for moderate EMI rejection, bayonet-locking BNC female connectors on each end for quick mate/de-mate cycles, and a 36 inch length providing headroom for rack-to-equipment routing without excessive slack. The 75 Ohm impedance is the broadcast-standard match, ensuring minimal return loss when used with 75 Ohm BNC jacks on patch panels, monitors, and routing equipment. Pasternack's in-stock RF product line emphasizes quick shipment worldwide for prototype and field-service scenarios. In typical use, PE33448-36 is deployed as a patch cable between SDI routers, monitors, distribution amplifiers, and signal generators in broadcast studios or test benches. Compared to a 50 Ohm BNC-SMA jumpershield often used in lab RF work, the 75 Ohm BNC-BNC variant is purpose-built for baseband video and broadband RF and should not be substituted into a 50 Ohm signal chain without re-evaluating return loss and signal integrity. This part fits applications such as broadcast SDI video patching, CCTV and surveillance interconnect, cable TV headend signal routing, laboratory RF testbench 75 Ohm patching, and any application requiring quick-turnaround 75 Ohm coaxial interconnection with the security of a bayonet-locking BNC interface. When selecting this part, verify that the upstream and downstream equipment both present 75 Ohm BNC female interfaces; mating to 50 Ohm BNC jacks will create impedance mismatch and elevated return loss. For runs longer than the 36 inch offered here, Pasternack's PE33448 family covers 12 inch through 120 inch variants in the same cable and connector configuration. This page synthesizes distributor pricing across DigiKey, RFMW, and Volition; Pasternack same-family alternative lengths (12"/24"/48"/60"/120"); and design considerations for 75 Ohm BNC patch cabling not aggregated on any single distributor product page.