Attenuators

Category Introduction

Attenuators are designed to reduce the power of a signal with minimal effect on its waveform. The attenuation value ranges from 0 dB to 69 dB with a frequency range from 0 to 86 GHz.

Product List

127 Items

Mfr Part #	Quantity Available	UnitPrice	Packaging	Product Status	Attenuation Value	Frequency Range	Power (Watts)	Impedance	Package / Case
HMC468ALP3ETR RF ATTENUATOR 7DB 50OHM 16VFQFN Analog Devices Inc.	96	$7.96	Tape & Reel (TR)	Active	7dB	0 Hz ~ 6 GHz	657mW	50 Ohms	16-VFQFN Exposed Pad
HMC472ALP4ETR RF ATTENUATOR 31.5DB 50OHM 24QFN Analog Devices Inc.	4	$8.33	Tape & Reel (TR)	Active	0.5dB ~ 31.5dB	0 Hz ~ 3.8 GHz	560mW	50 Ohms	24-VFQFN Exposed Pad
HMC542BLP4ETR RF ATTENUATOR 31.5DB 50OHM 24QFN Analog Devices Inc.	51	$10.37	Tape & Reel (TR)	Active	31.5dB	0 Hz ~ 4 GHz	560mW	50 Ohms	24-VFQFN Exposed Pad
HMC539ALP3ETR RF ATTENUATOR 8DB 16VFDFN Analog Devices Inc.	48	$11.03	Tape & Reel (TR)	Active	8dB	0 Hz ~ 4 GHz	-	-	16-VFQFN Exposed Pad
HMC540SLP3E RF ATTENUATOR 15DB 16VFQFN Analog Devices Inc.	84	$7.44	Strip	Active	15dB	100 MHz ~ 8 GHz	-	-	16-VFQFN Exposed Pad
HMC624ALP4ETR RF ATTENUATOR 31.5DB 50OHM 24QFN Analog Devices Inc.	11	$10.54	Tape & Reel (TR)	Active	31.5dB	0 Hz ~ 6 GHz	560mW	50 Ohms	24-VFQFN Exposed Pad
HMC472ALP4E RF ATTENUATOR 31.5DB 50OHM 24QFN Analog Devices Inc.	48	$8.41	Strip	Active	0.5dB ~ 31.5dB	0 Hz ~ 3.8 GHz	560mW	50 Ohms	24-VFQFN Exposed Pad
HMC346AMS8GE RF ATTENUATOR 32DB 50OHM 8TSSOP Analog Devices Inc.	31	$9.43	Strip	Active	32dB	0 Hz ~ 8 GHz	-	50 Ohms	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
HMC1122LP4ME RF ATTENUATOR 31.5DB 50OHM 24QFN Analog Devices Inc.	28	$10.38	Strip	Active	31.5dB	100 MHz ~ 6 GHz	-	50 Ohms	24-VFQFN Exposed Pad, CSP
HMC653 RF ATTENUATOR 3DB 50OHM DIE Analog Devices Inc.	48	$12.46	Tray	Active	3dB	0 Hz ~ 50 GHz	-	50 Ohms	Die
HMC792ALP4ETR RF ATTENUATOR 15.75DB 24VFQFN Analog Devices Inc.	7	$21.20	Tape & Reel (TR)	Active	15.75dB	0 Hz ~ 6 GHz	715mW	50 Ohms	24-VFQFN Exposed Pad
HMC941ALP4E RF ATTENUATOR 15.5DB 24VFQFN Analog Devices Inc.	3	$106.75	Strip	Active	15.5dB	100 MHz ~ 30 GHz	-	-	24-VFQFN Exposed Pad
HMC939ALP4E RF ATTENUATOR 31DB 24VFQFN Analog Devices Inc.	2	$118.20	Strip	Active	31dB	100 MHz ~ 40 GHz	-	-	24-VFQFN Exposed Pad
ADRF5731BCCZN-R7 16 LEAD LGA Analog Devices Inc.	2	$135.69	Tape & Reel (TR)	Active	2dB ~ 30dB	100 MHz ~ 40 GHz	-	50 Ohms	16-VFLGA Exposed Pad
ADRF5720BCCZN 0.5DB LSB,6-BIT,SILICON DIGITAL Analog Devices Inc.	7	$124.21	Strip	Active	0.5dB ~ 31.5dB	9 kHz ~ 40 GHz	500mW	50 Ohms	24-VFLGA Exposed Pad
ADRF5721BCCZN-R7 16 LEAD LGA Analog Devices Inc.	4	$141.70	Tape & Reel (TR)	Active	2dB ~ 30dB	9 kHz ~ 40 GHz	-	50 Ohms	16-VFLGA Exposed Pad
HMC1018ALP4E RF ATTENUATOR 31DB 24VFQFN Analog Devices Inc.	5	$128.28	Strip	Active	31dB	100 MHz ~ 30 GHz	-	-	24-VFQFN Exposed Pad
HMC652LP2ETR RF ATTENUATOR 2DB 50OHM 6TDFN Analog Devices Inc.	35	$7.31	Tape & Reel (TR)	Active	2dB	0 Hz ~ 25 GHz	-	50 Ohms	6-TDFN Exposed Pad
HMC653LP2ETR RF ATTENUATOR 3DB 50OHM 6TDFN Analog Devices Inc.	120	$7.29	Tape & Reel (TR)	Active	3dB	0 Hz ~ 25 GHz	-	50 Ohms	6-TDFN Exposed Pad
HMC656LP2E RF ATTENUATOR 10DB 50OHM 6TDFN Analog Devices Inc.	52	$6.19	Strip	Active	10dB	0 Hz ~ 25 GHz	-	50 Ohms	6-TDFN Exposed Pad

About Attenuators

What are Attenuators?

Attenuators

Attenuators are essential components in the field of RF/IF and RFID, designed to reduce the power of a signal without significantly distorting its waveform. They work by introducing a known amount of loss, measured in decibels (dB), into the signal path. This is achieved through resistive elements that dissipate energy as heat, thereby lowering the amplitude of the signal. Attenuators are crucial in applications where signal levels need to be controlled to prevent overloading of sensitive components, ensure signal integrity, or match impedance levels between different stages of a system.

Types of Attenuators

Fixed Attenuators

Fixed attenuators provide a constant level of attenuation and are used in applications where a specific, unchanging reduction in signal strength is required. They are simple, reliable, and often used in test setups or permanent installations where the attenuation level is predetermined.

Variable Attenuators

Variable attenuators allow for adjustable attenuation levels, offering flexibility in applications where signal strength needs to be dynamically controlled. They are often used in testing environments, communication systems, and signal processing applications where varying signal levels are encountered.

Step Attenuators

Step attenuators provide discrete levels of attenuation, allowing users to select from a range of predefined attenuation values. They are ideal for applications requiring precise control over signal levels, such as in laboratory settings or during system calibration.

Programmable Attenuators

Programmable attenuators can be controlled electronically, often via digital interfaces, to provide precise and repeatable attenuation settings. They are used in automated test systems, communication networks, and other applications requiring remote or automated control of signal levels.

How to choose Attenuators?

When selecting attenuators, several key parameters must be considered:

Attenuation Value: Determine the required level of signal reduction, measured in dB.
Frequency Range: Ensure the attenuator operates effectively within the desired frequency range of your application.
Power Handling: Consider the maximum power level the attenuator can handle without damage.
Impedance: Match the attenuator's impedance with that of the system to minimize reflection and signal loss.
VSWR (Voltage Standing Wave Ratio): Choose attenuators with low VSWR to ensure minimal signal reflection.

To evaluate product quality and reliability, consider supplier reputation, product reviews, and compliance with industry standards. Environmental factors such as temperature, humidity, and vibration should also be considered, along with installation requirements like connector type and mounting options.

Applications of Attenuators

Telecommunications

In telecommunications, attenuators are used to manage signal levels in transmission lines, ensuring optimal performance and preventing signal overload in receivers. They help maintain signal integrity across long distances and various network components.

Broadcasting

Broadcasting applications use attenuators to control signal levels in audio and video transmission systems. They ensure that signals are transmitted at appropriate levels to avoid distortion and interference, enhancing the quality of broadcast content.

Test and Measurement

Attenuators are vital in test and measurement setups, where they are used to calibrate equipment, simulate signal conditions, and protect sensitive instruments from high power levels. They provide precise control over signal levels during testing procedures.

Military and Aerospace

In military and aerospace applications, attenuators are used to manage signal levels in radar, communication, and navigation systems. They ensure reliable operation under varying environmental conditions and prevent interference between different system components.

Consumer Electronics

In consumer electronics, attenuators are used in devices like televisions, radios, and smartphones to control signal levels and improve performance. They help maintain signal quality and prevent distortion in audio and video outputs.