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 circuitry from receiving a signal that’s too powerful. 


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. 


...
Read more Read less

검색 필터링

총 30개 제품 중 1번째-20번째 제품을 조회 중
한장내 검색 결과 수
제품설명 단가 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 제품 번호 183-2346
제조사 부품 번호HMC470ALP3E
제조사Analog Devices
₩11,817.20
Each (On a Tape of 50)
수량
31dB 3GHz 2dB Surface Mount LFCSP 16 3.1 x 3.1 x 0.85mm 3.1mm 3.1mm 0.85mm 5 V +85 °C 3 V -40 °C
RS 제품 번호 183-2347
제조사 부품 번호HMC472ALP4E
제조사Analog Devices
₩7,523.70
Each (On a Tape of 50)
수량
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
RS 제품 번호 168-4910
제조사 부품 번호HMC306AMS10E
제조사Analog Devices
₩9,509.25
Each (On a Reel of 50)
수량
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 제품 번호 183-2363
제조사 부품 번호HMC973ALP3E
제조사Analog Devices
₩16,994.20
Each (On a Tape of 50)
수량
31dB 5GHz 5.6dB Surface Mount SMT 16 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 5 V +85 °C - -40 °C
RS 제품 번호 168-4911
제조사 부품 번호HMC629ALP4E
제조사Analog Devices
₩16,972.50
Each (On a Reel of 50)
수량
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
RS 제품 번호 862-6436
제조사 부품 번호HMC652LP2E
제조사Analog Devices
₩7,822.85
Each
수량
2dB 25GHz - Surface Mount SMT 6 2.05 x 2.05 x 1mm 2.05mm 2.05mm 1mm - +85 °C - -40 °C
RS 제품 번호 183-2534
제조사 부품 번호HMC624ALP4ETR
제조사Analog Devices
₩12,052.80
Each
수량
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
RS 제품 번호 183-2355
제조사 부품 번호HMC652
제조사Analog Devices
₩14,768.40
Each (In a Bag of 50)
수량
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 제품 번호 183-2557
제조사 부품 번호HMC652
제조사Analog Devices
₩20,773.10
Each
수량
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 제품 번호 145-7843
제조사 부품 번호HMC653LP2E
제조사Analog Devices
₩6,967.25
Each (On a Reel of 50)
수량
25dB 25GHz 3dB Surface Mount SMT 6 2.05 x 2.05 x 1mm 2.05mm 2.05mm 1mm - +85 °C - -40 °C
RS 제품 번호 183-2446
제조사 부품 번호HMC802ALP3E
제조사Analog Devices
₩7,774.80
Each (In a Pack of 2)
수량
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
RS 제품 번호 183-2356
제조사 부품 번호HMC653
제조사Analog Devices
₩15,492.25
Each (In a Bag of 50)
수량
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 제품 번호 761-5444
제조사 부품 번호LM1972M/NOPB
₩5,304.10
Each
수량
78dB 3MHz - Surface Mount SOIC W 20 13.005 x 7.595 x 2.286mm 13.01mm 7.595mm 2.286mm 12 V +70 °C 4.5 V 0 °C
RS 제품 번호 862-6206
제조사 부품 번호HMC653LP2E
제조사Analog Devices
₩7,376.45
Each
수량
25dB 25GHz 3dB Surface Mount SMT 6 2.05 x 2.05 x 1mm 2.05mm 2.05mm 1mm - +85 °C - -40 °C
RS 제품 번호 183-2517
제조사 부품 번호HMC1119LP4ME
제조사Analog Devices
₩15,504.65
Each
수량
- - - - - - - - - - - - - -
RS 제품 번호 131-4665
제조사 부품 번호HMC306AMS10E
제조사Analog Devices
₩10,823.65
Each
수량
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 제품 번호 183-2575
제조사 부품 번호HMC653
제조사Analog Devices
₩54,580.15
Each
수량
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 제품 번호 183-2354
제조사 부품 번호HMC624ALP4ETR
제조사Analog Devices
₩7,900.35
Each (On a Reel of 500)
수량
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
RS 제품 번호 162-6172
제조사 부품 번호LM1972M/NOPB
₩4,667.05
Each (In a Tube of 36)
수량
78dB 3MHz - Surface Mount SOIC W 20 13.005 x 7.595 x 2.286mm 13.01mm 7.595mm 2.286mm 12 V +70 °C 4.5 V 0 °C
RS 제품 번호 145-1329
제조사 부품 번호HMC624ALP4E
제조사Analog Devices
₩10,332.30
Each (On a Reel of 50)
수량
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