Variable Attenuators

Variable attenuators are a type of radio frequency attenuator that permits the signal level to constantly change. Attenuators are devices that decrease the power of a signal without noticeably distorting its waveform. This protects the circuitry from receiving a signal that is too powerful. RS Components offer a range of high-quality devices from leading brands including Analog Devices and Texas Instruments. Browse our range for all of your electronic application needs.

Variable attenuators are used when the signal level needs to be able to change frequently. This is useful when you don't know exactly what the final desired signal range is or when accuracy is not a priority. Attenuators can be thought of as the opposite of signal amplifiers. An amplifier increases signal power (or amplitude) while an attenuator decreases it.

How do variable attenuators work?

The signal level of variable attenuators is altered either manually or remotely. In manual variable attenuators, the signal level is changed by physically controlling the device, using something like an adjustable screw control. If they are controlled remotely, a motor or PIN diode uses variable voltage to change the signal.

Types of variable attenuators

Variable attenuators come with PIN diodes or MESFETs (metal-semiconductor field-effect transistors) as resistors to modulate amplitude. They can use either balanced or unbalanced pi-pad or T-pad circuits.

Applications

Variable attenuators are used in various electronic applications in many industries. Some of the most common are

  • Mobile phone 3G infrastructure
  • Microwave and Radio
  • Test equipment and sensors
  • IF and RF applications

Our range of variable attenuators are available in industry-standard package types, pin counts and mounting types. With maximum attenuation levels ranging from 2 dB to 78 dB and maximum frequency ranging from 3 MHz to 50 GHz.


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Beskrivning Pris Maximum Attenuation Maximum Frequency Maximum Insertion Loss Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Supply Voltage Minimum Operating Temperature
RS-artikelnummer 862-6411
Tillv. art.nrHMC624ALP4E
VarumärkeAnalog Devices
90,32 kr
Each
Enheter
31.5dB 6GHz 3.8dB Surface Mount SMT 24 4.1 x 4.1 x 0.95mm 4.1mm 4.1mm 0.95mm 5 V +85 °C - -40 °C
RS-artikelnummer 183-2622
Tillv. art.nrHMC472ALP4E
VarumärkeAnalog Devices
62,49 kr
Each (In a Pack of 2)
Enheter
31.5dB 3.8GHz 3dB Surface Mount SMT 24 4.1 x 4.1 x 0.95mm 4.1mm 4.1mm 0.95mm 5 V +85 °C - -40 °C
Nytt
RS-artikelnummer 217-7940
Tillv. art.nrF1958NBGK
41,891 kr
Each (In a Tray of 490)
Enheter
16dB 4GHz 1.7dB Surface Mount QFN 24 - - - - - - - -
Nytt
RS-artikelnummer 217-3724
Tillv. art.nrF1950NBGI
42,813 kr
Each (In a Tray of 490)
Enheter
33dB 5GHz 1.9dB Surface Mount VFQFPN 24 - - - - - - - -
RS-artikelnummer 183-2575
Tillv. art.nrHMC653
VarumärkeAnalog Devices
133,09 kr
Each
Enheter
3dB 50GHz - Surface Mount Chip 6 0.45 x 0.42 x 0.1mm 0.45mm 0.42mm 0.1mm 5.2 V +85 °C - -55 °C
RS-artikelnummer 160-2705
Tillv. art.nrHMC652LP2E
VarumärkeAnalog Devices
43,752 kr
Each (On a Reel of 50)
Enheter
2dB 25GHz - Surface Mount SMT 6 2.05 x 2.05 x 1mm 2.05mm 2.05mm 1mm - +85 °C - -40 °C
RS-artikelnummer 183-2557
Tillv. art.nrHMC652
VarumärkeAnalog Devices
130,63 kr
Each
Enheter
2dB 50GHz - Surface Mount Chip 6 0.45 x 0.42 x 0.1mm 0.45mm 0.42mm 0.1mm 5.6 V +85 °C - -55 °C
RS-artikelnummer 183-2446
Tillv. art.nrHMC802ALP3E
VarumärkeAnalog Devices
52,415 kr
Each (In a Pack of 2)
Enheter
20dB 10GHz 3.5dB Surface Mount SMT 16 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5 V +85 °C - -40 °C
Nytt
RS-artikelnummer 217-3722
Tillv. art.nrF1912NCGI
38,466 kr
Each (In a Tray of 490)
Enheter
33dB 4GHz 2dB Surface Mount VFQFPN 20 - - - - - - - -
Nytt
RS-artikelnummer 217-3725
Tillv. art.nrF1950NBGI
65,33 kr
Each (In a Pack of 2)
Enheter
33dB 5GHz 1.9dB Surface Mount VFQFPN 24 - - - - - - - -
RS-artikelnummer 183-2534
Tillv. art.nrHMC624ALP4ETR
VarumärkeAnalog Devices
90,32 kr
Each
Enheter
31.5dB 6GHz 3.8dB Surface Mount LFCSP 24 4.1 x 4.1 x 0.85mm 4.1mm 4.1mm 0.85mm 5 V +85 °C 3 V -40 °C
Nytt
RS-artikelnummer 217-3731
Tillv. art.nrF2255NLGK
37,675 kr
Each (In a Tray of 624)
Enheter
34.6dB 3GHz 1.7dB Surface Mount VFQFPN 16 - - - - - - - -
RS-artikelnummer 168-4910
Tillv. art.nrHMC306AMS10E
VarumärkeAnalog Devices
41,002 kr
Each (On a Reel of 50)
Enheter
15.5dB 3.8GHz 2.7dB Surface Mount MSOP 10 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5 V +85 °C 3 V -40 °C
RS-artikelnummer 862-6436
Tillv. art.nrHMC652LP2E
VarumärkeAnalog Devices
56,09 kr
Each
Enheter
2dB 25GHz - Surface Mount SMT 6 2.05 x 2.05 x 1mm 2.05mm 2.05mm 1mm - +85 °C - -40 °C
Nytt
RS-artikelnummer 217-3723
Tillv. art.nrF1912NCGI
58,54 kr
Each (In a Pack of 2)
Enheter
33dB 4GHz 2dB Surface Mount VFQFPN 20 - - - - - - - -
RS-artikelnummer 139-1753
Tillv. art.nrHMC425ALP3E
VarumärkeAnalog Devices
229,06 kr
Each
Enheter
31.5dB 8GHz 4.7dB Surface Mount QFN 16 3 x 3 x 0.85mm 3.1mm 3.1mm 0.85mm 5 V dc +85 °C 3 V -40 °C
RS-artikelnummer 183-2517
Tillv. art.nrHMC1119LP4ME
VarumärkeAnalog Devices
101,31 kr
Each
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 131-4665
Tillv. art.nrHMC306AMS10E
VarumärkeAnalog Devices
42,11 kr
Each
Enheter
15.5dB 3.8GHz 2.7dB Surface Mount MSOP 10 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5 V +85 °C 3 V -40 °C
Nytt
RS-artikelnummer 217-7941
Tillv. art.nrF1958NBGK
69,63 kr
Each (In a Pack of 2)
Enheter
16dB 4GHz 1.7dB Surface Mount QFN 24 - - - - - - - -
RS-artikelnummer 131-4666
Tillv. art.nrHMC629ALP4E
VarumärkeAnalog Devices
137,99 kr
Each
Enheter
45dB 10GHz 3.75dB Surface Mount QFN 24 4.1 x 4.1 x 0.85mm 4.1mm 4.1mm 0.85mm 3 V, 5 V +85 °C - -40 °C