Precision Mismatches

General Information

Precision standard mismatches are fixed coaxial terminations, which are used to introduce a known VSWR into a 50 ohm transmission system. These mismatches are extremely useful in a wide variety of applications and are quick and easy to use. They can be used to calibrate swept reflectometers, verify network analyzer calibration, establish impedance references in TDR measurements, etc.

Maury standard mismatches are quality constructed using thin film resistors and a unique grounding method that ensures stable operation. For ease of identification, the VSWR value of the mismatch is engraved on the end cap. Calibration data is provided for all units.

The standard units in this section are fitted with 2.4mm, 2.92mm, 3.5mm, 7mm and type N connectors. Please consult with our sales staff for application assistance. The units are also available as sets or kits packaged in foam-lined wood instrument cases.


Available Models

Swipeable Content
Model Connector Type

Frequency Range (GHz)

Nominal VSWR Accuracy (GHz)
Female Male DC - 12.0 12.0 - 50.0
7933A1.20 7933B1.20 2.4mm DC - 50.0 1.20 ±0.09 ±0.13
7933A1.50 7933B1.50 1.50 ±0.10 ±0.20
7933A2.00 7933B2.00 2.00 ±0.14 ±0.25

Model Connector Type

Frequency Range (GHz)

Nominal VSWR Accuracy (GHz)
Female Male DC - 12.0 12.0 - 40.0
8778A1.20 8778B1.20 2.92mm DC - 40.0 1.20 ±0.08 ±0.13
8778A1.50 8778B1.50 1.50 ±0.10 ±0.20
8778A2.00 8778B2.00 2.00 ±0.14 ±0.25

Model Connector Type

Frequency Range (GHz)

Nominal VSWR Accuracy (GHz)
Female Male DC - 12.0 12.0 - 26.5
8033A1.20 8033B1.20 3.5mm DC - 26.5 1.20 ±0.07 ±0.10
8033A1.50 8033B1.50 1.50 ±0.09 ±0.17
8033A2.00 8033B2.00 2.00 ±0.12 ±0.22

Model Connector Type

Frequency Range (GHz)

Nominal VSWR Accuracy (GHz)
Female Male DC - 8.0 8.0 - 12.4 12.4 - 18.0
2611C 7mm DC - 18.0 1.20 ±0.05 ±0.06 ±0.10
2611E 1.50 ±0.06 ±0.08 ±0.17
2611G 2.00 ±0.10 ±0.12 ±0.22

Model Connector Type

Frequency Range (GHz)

Nominal VSWR Accuracy (GHz)
Female Male DC - 8.0 8.0 - 12.4 12.4 - 18.0
2561C 2562C Type N DC - 18.0 1.20 ±0.06 ±0.07 ±0.07
2561E 2562E 1.50 ±0.08 ±0.09 ±0.07
2561G 2562G 2.00 ±0.12 ±0.12 ±0.07

Application Notes and Data Sheets

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