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| Description |
Applicable cable |
Part Numbe |
 SMA connectors are semi-precision, subminiature devices that provide repeatable electrical performance from DC to 12.4 GHz with flexible cable. Semi-rigid cabling extends the frequency range of the device to 18 GHz. These devices offer broadband performance with low reflection and constant 50 ohm impedance. These properties, along with minimum attenuation and low VSWR have made the SMA extremely popular in the microwave community. The SMA design has been broadened to accommodate many interconnect requirements and is available in pressure crimp, clamp and solder terminal attachments. SMA design parameters have incorporated the considerations of balancing cost, size, weight and performance to yield the best value in your microwave system. SMA connectors are also used to provide interconnections from printed circuit board striplines to coaxial cables. Electrical: | Impedance | 50 ohm | | Frequency Range | 0 to 18.0 GHz for RG402 and RG405 semi-rigid cable: 0 to 18.0 GHz for flexible cable: max operation frequency of cable per MIL-C-17 | | VSWR | 1.05+0.005×f GHz max (straight) 1.15+0.015×f GHz max (right angle) RG402 (0.141”OD): 1.05+0.005×f GHz RG405 (0.085”OD): 1.05+0.005×f GHz RG58, 141, 142, 223: 1.10+0.01×f GHz max (straight) RG58, 141, 142, 223: 1.15+0.02×f GHz max(right angle) RG174, 188, 316: 1.15+0.01×f GHz max (straight) RG174, 188, 316:1.18+0.02×f GHz max (right angle) RG178, 196: 1.20+0.020×f GHz max (straight) RG178, 196: 1.25+0.025×f GHz max (right angle) | | Voltage Rating | RG402 (0.141”OD): 500 volts rms max RG405 (0.085”OD): 335 volts rms max RG58, 141, 142, 223: 500 volts rms max RG174, 188, 316: 335 volts rms max RG178, 196: 250 volts rms max | | Dielectric Withstanding Voltage | RG402 (0.141”OD): 1,000 volts rms max RG405 (0.085” OD): 750 volts rms max RG58, 141, 142, 223: 1,000 volts rms max RG174, 188, 316: 750 volts rms max RG178, 196: 500 volts rms max | | Contact Resistance | center contact: 3.0 milliohms max outer contact: 2.0 milliohms max | | RF Leakage | -(90-f GHz)dB min | | Insertion Loss | 0.04 dB max×√f GHz (straight) 0.06 dB max×√f GHz (right angle) | | Insulation Resistance | 5,000 megohms min | Mechanical and Environmental: | Mating | 1/4”-36 threaded coupling | | Durability | 500 matings | | Coupling Nut Retention | Min 60 lbs | | Recommend Nut Mating Torque | 8 inch-pounds | | Cable Retention | RG58, 141, 142, 223: 40 lbs min RG174, 188, 316: 20 lbs min | | Temperature Range | -65¢J to 165¢J | | Vibration | MIL-STD-202 Method 204 Test Cond. D | | Salt Spray | MIL-STD-202 Method 101 Test cond. B | | Temperature Cycling | MIL-STD-202 Method 102 Test Cond. C | Material: | | Material | Plating | | Connector Body | Stainless Steel Brass | Passivated or Gold Nickel or Gold | | Center Contact | Male: Brass Female: Beryllium Copper | Gold | | Insulation | Teflon | None | | Gasket | Silicone Rubber | None | | Crimp Ferrule | Annealed Copper | Same as Body | |
