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K Plug Receptacle Panel RF Connector
Description: 2.92 mm, Male, Straight, Receptacle, Panel Connectors (SUS), DC to 40 GHz
● VSWR: 1.20 Max @ 40 GHz
● Insertion Loss Value: ≤ 0.38 dB @ 26.5 GHz
● Durability Cycles: ≥ 500 Cycles
Description
Main Information
Description: 2.92 mm, Male, Straight, Receptacle, Panel Connectors (SUS), DC to 40 GHz
● VSWR: 1.20 Max @ 40 GHz
● Insertion Loss Value: ≤ 0.38 dB @ 26.5 GHz
● Durability Cycles: ≥ 500 Cycles
● Body Material: Stainless Steel 303
● Center Contact Material: Beryllium Copper
1. Introduction
Hualink's 2.92mm (K Band) RF/Microwave coaxial Receptacle Panel RF Connector was designed with highly rugged Stainless Steel 303 material. The 2.92 mm (K) series use an air dielectric, with increased the performance up to 43.5 GHz to respond to accrodingly to millimeter wave applications. It can accept the pin or glass bead with diameter of .009”, .012”, .015” .020” .
2. Specification
Electrical | |
● Impedance: 50 Ω | ● Insulation Resistance: 5000 MΩ Min |
● Frequency Range: DC – 40 GHz | ● Dielectric Withstanding Voltage: 500 Vrms Min (Sea Level) |
● VSWR: 1.20 Max @ 40 GHz | ● Contact Resistance: ≤ 3 mΩ (Center Contact) |
● Insertion Loss: ≤ 0.31 dB @ 26.5 GHz | ≤ 2 mΩ (Outer Contact) |
Mechanical | |
● Mateable with SMA mm, 3.5 mm, SMK, K Series | ● Center Contact Retention Force: 6 lbs Min |
● Durability: ≥ 500 Cycles | ● Coupling Torque: 7- 8 lb-in Recommended |
Environmental | |
● Temperature Range: -55 ℃ to +85 ℃ | |
Material & Finish | |
● Body: SUS303, Passivated | ● Dielectric: Engineering Plastic, Natural |
● Center Contact: Beryllium Copper, 30 μ" Gold | |
3. Features and Benefits
● Compatible with 40GHz configurations
● Compliant MIL-STD-348B Standard
● Male and female options
● Reduces mounting complexity
4. Applications
● High speed switch etc.
● RF module
● Data transmission measurement
5. Products

DUT: 2 Pieces 2.92 mm Male Receptacle Panel RF Connector + Test Pin back to back test
6. FAQ
1). What are the mating rules for similar type RF connectors?
RF Connector Mating Matrix for Similar Type Connectors
Connector Type | Frequency Range | Mates With |
SMA | DC – 26.5 GHz | 3.5 mm 2.92 mm SMK K series |
3.5 mm | DC - 34 GHz | SMA 2.92 mm SMK K series |
2.92 mm | DC - 40 GHz | SMA 3.5 mm |
2.4 mm | DC - 50 GHz | 1.85 mm V series |
1.85 mm | DC - 67 GHz | 2.4 mm V series |
1.0 mm | DC - 110 GHz | 1.0 mm W series |
SMP | DC - 40 GHz | GPOTM series |
SMPM | DC - 67 GHz | GPPOTM series SSMP |
2). Coupling Style of RF Connectors
Each interface has a coupling style to suit its application
■ Thread
Threaded results in the most robust connection for superior electrical performance. Thread style is characterized by connecting the most reliable, high mechanical strength, good vibration resistance. Due to the mechanical properties of electrical performance for better testing instruments, military aviation. Common thread connector has SMA, Type N, 2.92 mm (K connector), 2.4 mm, 1.85 mm (V Connector) 1.0 mm, 7/16, etc...
■ Bayonet
Bayonet type connector has characteristics as rotated 90 degrees locking, connection speed, and stability. It is suitable for frequent handling equipment, widely used in network systems, instrumentation, and other fields. The BNC series is a typical bayonet connector.
■ Push On
Push on style is characterized by rapid connection and separation, small volume, lightweight. For the shell plate to plate connection, high-density mounting. Common type connector has SMB, MCX, MMCX, SMP(GPO), SMPM(GPPO, SSMP), QMA, 1.0/2.3 etc.
■ Snap-On offers easy and quick mating and de-mating
■ Snap-Lock offers easy mating with the additional mechanical security of a secondary lock
■ Push-On is used for testing or when other features in the application provide location
7. Packaging, Shipping

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