SMB Connector
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SMB Connector

SMB male connector

The SMB connector (SubMiniature version B) is a type of coaxial RF connector used to connect radio frequency signals in telecommunications and other high-frequency applications. The SMB connector provides a snap-on interface that makes installation and removal simple. It also features a 50  impedance, making it suited for a variety of RF applications,the frequency up to 4GHz, Extended performance up to 10 GHz.

Base stations, antennas, radio board, GPS systems, as well as telecommunications and measurement equipment, frequently use SMB connectors. They come in both male and female variants and work with a variety of coaxial cables, including RG58 and RG174. SMB female connectors have male pins, while SMB male connectors have female contacts. SMB coax connectors are snap-on versions of SMA connectors. SMA male connectors have male pins, whereas SMA female connectors have female contacts.  Mini-SMB is a 75 ohm version SMB, the size is same as standard SMB. The FAKRA connector use SMB as a inner connector with plastic housing.

Features and Benefits

Snap-on coupling system to save installation time

Excellent electrical performance from DC to 4 GHz

Interface Of SMB Connector

smb connector interface

Specification Of SMB Connector

Impedance50 Ohm
Frequency RangeDC - 4 GHz
Return loss≥ 17 dB Typical
Insertion loss≤0.1 dB x √f GHz
Voltage Rating250 Volts RMS Continuous
Dielectric Withstanding   Voltage750 VRMS Max
Insulation Resistance≥ 5000 MΩ
Center Contact Resistance≤5 mΩ
Outer Contact Resistance≤2.5 mΩ
RF Leakage≥  55 dB Max (DC-1GHz)
Power Handling95 W @ 2 GHz @ 25ºC
Temperature Range−65°C to +165°C
Thermal ShockMIL-STD-202, Method 107 (Test Condition B)
CorrosionMIL-STD-202, Method 101 (Test Condition B)
VibrationMIL-STD-202, Method 204 (Test Condition B)
Mechanical ShockMIL-STD-202, Method 213 (Test Condition I)
Moisture ResistanceMIL-STD-202, Method 106
AltitudeMIL-STD-202 Method 105 (Test Condition C)
Mating Cycles500 Min
Coupling MechanismThreaded
Interface SpecificationMIL-STD-348, IEC 60169-10, CECC 22130, MIL-PRF-39012
Engagement force≤ 63 N
Disengagement force8 N to 63 N

Our company, Zhejiang LenoRF Industry co. LTD, occupies an area of 30 hectares and is equipped with world class equipment to make millimeter wave connectors and phase stable cables. We specialize in coaxial connectors, cable assembly, and passive devices. Our current products are the latest millimeter wave connector and phase stable cable on the market.

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