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Termination method: Press-Fit
85 Ω, 90 Ω, 100 Ω matched differential impedance
Applicable for high-speed data transfer between motherboards and plug-in boards
GF3A transmission rate: connector 25 Gbps
The product meets 10GBASE-KR requirements in IEEE 802.3ap
GF3B is the simplified upgrade version of GF3A, compatible and interchangeable between series
Features and advantages
The differential pairs and grounding contacts are arranged alternately, and the side faces of differential pairs of module 1 correspond to the grounding contacts of module 2
The plug and receptacle are rectangular connectors. Guide pillar and guide slot are used for one side of the plug shell and the inside of the receptacle to avoid mistaken insertion
The contacts are small and dense, with a spacing of 3.6 mm between each adjacent differential pair in a row (1.4 mm spacing between signal contacts in differential pairs, 1.1 mm spacing between adjacent signal contacts and earth contacts), and the spacing between two adjacent columns is 1.8 mm
The plug module is integrated by one-shot plastic forming and all other components are assembled using force-fitting assembly
Unique microstrip line transmission structure, better impedance control, low crosstalk and improved coupling between differential signals
Straight and curved contacts are connected with separate contacts at each end to suppress antenna radiation effects with lower insertion loss
Zero time lag design
GF3B is a new generation of connectors optimized on the basis of GF3A, with a performance close to that of GF3A
and a greatly simplified structure with more cost advantages
Electrical
Dielectric withstand voltage: 500V AC at standard atmospheric pressure
Insulation resistance: ≥1000MΩ at normal temperature, ≥500MΩ at hot and humid state
Low level contact resistance: ≤50mΩ
Rated current: 1A
Transmission
Characteristic impedance: 100±15Ω, 90±10Ω, 85±15Ω
GF3A series：
Transmission rate: 25 Gbps
Overall crosstalk: ≤-30dB (0.1GHz～12.5GHz）
Insertion loss: ≥-3dB (0.1GHz～12.5GHz)
GF3B series： Transmission rate: 25 Gbps
Overall crosstalk: ≤-30dB (0.1GHz～12.5GHz）
Insertion loss: ≥-2dB (0.1GHz～12.5GHz)
Mechanical
Endurance: 200 cycles
Sine vibration: 10Hz～2000Hz, acceleration, 196m2/s
Random vibration: power spectral density 0.02G²/Hz, total acceleration root-mean-square value 5.2G
Impact: half-sine wave, peak acceleration 294m/s²
Environmental
Working temperature: -40°C～ 105°C
Salt spray: 48h
Humidity: 240h of alternating heat and humidity
Flame retardant grade: UL94V0
Data network field, including enterprise router, converter, memory, server, supercomputer, etc.;
Wireless communications, including communication base stations, core routers, converters, etc;
New generation of integrated avionics systems, fire control radar command and control systems, image and sonar processing systems and other areas. The product is expected to be a key product to be promoted for aviation and naval systems in the coming years;
Compliant with 10G Ethernet standard and can transmit signals for CPCI bus, PCIE bus, ATCA communication computing system, USB 3.0, SATA 3.0 and many other protocols.
