DEV 8131 & DEV 8132 High-Performance 75-to-50 Ohm Impedance Transformers

DEV 8131 & DEV 8132 High-Performance 75-to-50 Ohm Impedance Transformers

The DEV 8131 and DEV 8132 High-Performance Impedance Transformers provide low-loss conversion between 75 Ohm and 50 Ohm RF systems. Separate models are optimized for L-band and CATV-band applications, making the series suitable for satellite, broadcast, cable and RF monitoring installations.

The DEV 8131 supports DC, 10 MHz reference and 900-2200 MHz L-band signals. The DEV 8132 covers the 47-862 MHz CATV band. Standard configurations use a 75 Ohm precision F female connector and a 50 Ohm SMA female connector.

Alternative SMA, BNC and N connector combinations are available with female or male interfaces. Each transformer is housed in a durable metal enclosure and provides less than 1 dB insertion loss.

Product Type: Passive RF impedance transformer
Impedance Conversion: 75 Ohm to 50 Ohm
DEV 8131 Frequency Range: DC, 10 MHz and 900-2200 MHz
DEV 8132 Frequency Range: 47-862 MHz
Standard 75 Ohm Connector: Precision F female
Standard 50 Ohm Connector: SMA female
Optional Connector Types: SMA, BNC and N
Available Connector Genders: Male or female, configuration-dependent
DEV 8131 Return Loss: Greater than 16 dB
DEV 8132 50 Ohm Return Loss: Greater than 16 dB
DEV 8132 75 Ohm Return Loss: Greater than 15 dB
Insertion Loss: Less than 1 dB
Housing: Solid metal
Small Housing Dimensions: Typ. 20 mm W x 18 mm H x 50 mm D
Large Housing Dimensions: 25.4 mm W x 25.4 mm H x 38 mm D
Weight: Typ. 0.3 kg
Environmental Conditions: ETS 300019 Part 1-3 Class 3.1E

Available Models

• DEV 8131: L-band impedance transformer supporting DC, 10 MHz and 900-2200 MHz

• DEV 8132: CATV-band impedance transformer covering 47-862 MHz

Connector Options

75 Ohm Port:

• Precision F female — standard

• BNC female

• N female

• N male

50 Ohm Port:

• SMA female — standard

• SMA male

• BNC female

• BNC male

• N female

• N male

Connector availability depends on the selected combination. Certain configurations require the larger metal housing.

Available Option

DC Block: Removes DC and 10 MHz pass-through from the DEV 8131, providing a 900-2200 

MHz RF-only configuration

Key Features

• Low-loss 75-to-50 Ohm impedance conversion

• Dedicated L-band and CATV-band models

• DC and 10 MHz pass-through on the standard DEV 8131

• Optional DC-blocked DEV 8131 configuration

• Less than 1 dB insertion loss

• High RF return-loss performance

• Precision F, SMA, BNC and N connector choices

• Male and female connector options

• Compact solid-metal construction

• Two enclosure sizes for different connector combinations

• Suitable for satellite, broadcast and CATV systems