Attenuators - Interconnects

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BW 50Ω Coaxial Precision Fixed Attenuators

Mini-Circuits BW 50Ω Coaxial Precision Fixed Attenuators feature a wide range of frequencies and a maximum input power range of 0.5W to 100W. These attenuators feature precise attenuation and excellent voltage standing wave ratios (VSWR). Mini-Circuits BW 50Ω Coaxial Precision Fixed Attenuators are available with a variety of connector types. Typical applications include instrumentation, matching, test and measurement, optical communications, high-speed data systems, and test setups.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Connector Type	Frequency Range	Maximum Attenuation	Power Rating	Gender	Impedance	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Attenuators - Interconnects FXD ATTEN 5W N F/M 5dB RoHS BW-N5W5+ Mini-Circuits 1: ¥17,930.5 20In Stock 50Expected 1/5/2027	Mfr. Part # BW-N5W5+ Mouser Part # 139-BW-N5W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 5W N F/M 5dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	20In Stock 50Expected 1/5/2027	¥17,930.5	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	5 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN 5W N F/M 6dB RoHS BW-N6W5+ Mini-Circuits 1: ¥17,930.5 23In Stock 50Expected 2/15/2027	Mfr. Part # BW-N6W5+ Mouser Part # 139-BW-N6W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 5W N F/M 6dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	23In Stock 50Expected 2/15/2027	¥17,930.5	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	6.15 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA / 0.5DB 2WRoHS BW-S0.5W2+ Mini-Circuits 1: ¥18,108.2 41In Stock 50Expected 2/17/2027	Mfr. Part # BW-S0.5W2+ Mouser Part # 139-BW-S0.5W2	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 0.5DB 2WRoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	41In Stock 50Expected 2/17/2027	¥18,108.2	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	0.5 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA /10dB 20W RoHS BW-S10W20+ Mini-Circuits 1: ¥39,551.7 21In Stock 20Expected 10/26/2026	Mfr. Part # BW-S10W20+ Mouser Part # 139-BW-S10W20	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA /10dB 20W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	21In Stock 20Expected 10/26/2026	¥39,551.7 ¥39,314.2 View Quote	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	11 dB	20 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects 20 dB Fixed Attenuator, DC - 26000 MHz, 50? BW-S20-2W263A+ Mini-Circuits 1: ¥15,927.3 69In Stock	Mfr. Part # BW-S20-2W263A+ Mouser Part # 139-BW-S20-2W263A+	Mini-Circuits	Attenuators - Interconnects 20 dB Fixed Attenuator, DC - 26000 MHz, 50?	Datasheet	69In Stock	¥15,927.3	Min.: 1 Mult.: 1	SMA	0 Hz to 26 GHz	20.75 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW	Bulk
Attenuators - Interconnects FXD ATTEN 2W SMA F/M 2dB RoHS BW-S2W2+ Mini-Circuits 1: ¥9,045.8 126In Stock 368On Order	Mfr. Part # BW-S2W2+ Mouser Part # 139-BW-S2W2	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 2W SMA F/M 2dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	126In Stock 368On Order On Order Ship Dates Mfr. #: BW-S2W2+ Stock: 126 Can Ship Immediately On Order: 168 Expected 10/19/2026 200 Expected 2/15/2027 Factory Lead-Time: 17 Weeks	¥9,045.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	2.07 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA / 2dB 5W RoHS BW-S2W5+ Mini-Circuits 1: ¥13,724.8 52In Stock	Mfr. Part # BW-S2W5+ Mouser Part # 139-BW-S2W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 2dB 5W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	52In Stock	¥13,724.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	2.13 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects 3 dB Fixed Attenuator, DC - 26000 MHz, 50? BW-S3-2W263A+ Mini-Circuits 1: ¥15,927.3 56In Stock 270On Order	Mfr. Part # BW-S3-2W263A+ Mouser Part # 139-BW-S3-2W263A+	Mini-Circuits	Attenuators - Interconnects 3 dB Fixed Attenuator, DC - 26000 MHz, 50? Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	56In Stock 270On Order On Order Ship Dates Mfr. #: BW-S3-2W263A+ Stock: 56 Can Ship Immediately On Order: 120 Pending 150 Expected 12/7/2026 Factory Lead-Time: 17 Weeks	¥15,927.3	Min.: 1 Mult.: 1	SMA	0 Hz to 26 GHz	3.75 dB	2 W	Plug (Male)	50 Ohms	- 55 C	+ 100 C	BW	Bulk
Attenuators - Interconnects FXD ATTEN / SMA / 40dB 5W RoHS BW-S40W5+ Mini-Circuits 1: ¥13,728.2 45In Stock 150Expected 11/30/2026	Mfr. Part # BW-S40W5+ Mouser Part # 139-BW-S40W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 40dB 5W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	45In Stock 150Expected 11/30/2026	¥13,728.2 ¥13,724.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	40.12 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN 2W SMA F/M 4dB RoHS BW-S4W2+ Mini-Circuits 1: ¥9,045.8 40In Stock 300On Order	Mfr. Part # BW-S4W2+ Mouser Part # 139-BW-S4W2	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 2W SMA F/M 4dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	40In Stock 300On Order On Order Ship Dates Mfr. #: BW-S4W2+ Stock: 40 Can Ship Immediately On Order: 150 Expected 1/27/2027 150 Expected 3/1/2027 Factory Lead-Time: 17 Weeks	¥9,045.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	4.51 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA / 5dB 5W RoHS BW-S5W5+ Mini-Circuits 1: ¥13,724.8 78In Stock	Mfr. Part # BW-S5W5+ Mouser Part # 139-BW-S5W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 5dB 5W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	78In Stock	¥13,724.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	4.9 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects 6 dB Fixed Attenuator, DC - 26000 MHz, 50ohm BW-S6-2W263A+ Mini-Circuits 1: ¥15,927.3 36In Stock 100Expected 1/27/2027	Mfr. Part # BW-S6-2W263A+ Mouser Part # 139-BW-S6-2W263A+	Mini-Circuits	Attenuators - Interconnects 6 dB Fixed Attenuator, DC - 26000 MHz, 50ohm	Datasheet	36In Stock 100Expected 1/27/2027	¥15,927.3	Min.: 1 Mult.: 1									BW	Bulk
Attenuators - Interconnects FXD ATTEN / SMA / 6dB 5W RoHS BW-S6W5+ Mini-Circuits 1: ¥13,728.2 21In Stock 50Expected 12/21/2026	Mfr. Part # BW-S6W5+ Mouser Part # 139-BW-S6W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 6dB 5W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	21In Stock 50Expected 12/21/2026	¥13,728.2 ¥13,724.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	6.15 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects RXD ATTEN/2.92MM/ 2W 4DB RoHS BW-K4-2W44+ Mini-Circuits 1: ¥48,795.2 1In Stock	Mfr. Part # BW-K4-2W44+ Mouser Part # 139-BW-K4-2W44	Mini-Circuits	Attenuators - Interconnects RXD ATTEN/2.92MM/ 2W 4DB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	1In Stock	¥48,795.2	Min.: 1 Mult.: 1	2.92 mm	0 Hz to 40 GHz	4 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN 5W N F/M 10dB RoHS BW-N10W5+ Mini-Circuits 1: ¥17,930.5 10In Stock 250On Order	Mfr. Part # BW-N10W5+ Mouser Part # 139-BW-N10W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 5W N F/M 10dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	10In Stock 250On Order On Order Ship Dates Mfr. #: BW-N10W5+ Stock: 10 Can Ship Immediately On Order: 100 Expected 1/25/2027 150 Expected 1/27/2027 Factory Lead-Time: 17 Weeks	¥17,930.5	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	10.14 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA / 4dB 5W RoHS BW-S4W5+ Mini-Circuits 1: ¥13,724.8 14In Stock	Mfr. Part # BW-S4W5+ Mouser Part # 139-BW-S4W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 4dB 5W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	14In Stock	¥13,724.8	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	4 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / SMA / 50DB 2W RoHS BW-S50W2+ Mini-Circuits 1: ¥26,516.2 7In Stock 120On Order	Mfr. Part # BW-S50W2+ Mouser Part # 139-BW-S50W2	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / SMA / 50DB 2W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	7In Stock 120On Order On Order Ship Dates Mfr. #: BW-S50W2+ Stock: 7 Can Ship Immediately On Order: 80 Expected 11/19/2026 40 Expected 12/21/2026 Factory Lead-Time: 17 Weeks	¥26,516.2	Min.: 1 Mult.: 1	SMA	0 Hz to 18 GHz	49.57 dB	2 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN/2.4MM/ 1W 20DB RoHS BW-V20-1W54+ Mini-Circuits 1: ¥65,436.8 10In Stock	Mfr. Part # BW-V20-1W54+ Mouser Part # 139-BW-V20-1W54	Mini-Circuits	Attenuators - Interconnects FXD ATTEN/2.4MM/ 1W 20DB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	10In Stock	¥65,436.8 ¥64,915.2	Min.: 1 Mult.: 1									BW
Attenuators - Interconnects FXD ATTEN 5W N F/M 4dB RoHS BW-N4W5+ Mini-Circuits 1: ¥17,930.5 1In Stock	Mfr. Part # BW-N4W5+ Mouser Part # 139-BW-N4W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 5W N F/M 4dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	1In Stock	¥17,930.5	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	4 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN 5W N F/M 8dB RoHS BW-N8W5+ Mini-Circuits 1: ¥17,814.2 6In Stock	Mfr. Part # BW-N8W5+ Mouser Part # 139-BW-N8W5	Mini-Circuits	Attenuators - Interconnects FXD ATTEN 5W N F/M 8dB RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	6In Stock	¥17,814.2 ¥17,812.6	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	8 dB	5 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN /N/30dB 100W RoHS BW-30N100W+ Mini-Circuits 1: ¥145,824.2 38On Order	Mfr. Part # BW-30N100W+ Mouser Part # 139-BW-30N100W	Mini-Circuits	Attenuators - Interconnects FXD ATTEN /N/30dB 100W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	38On Order On Order Ship Dates Mfr. #: BW-30N100W+ Stock: 0 On Order: 18 Expected 11/9/2026 20 Expected 12/29/2026 Factory Lead-Time: 17 Weeks	¥145,824.2	Min.: 1 Mult.: 1	N	0 Hz to 6 GHz	31.5 dB	100 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / N / 20dB 20W RoHS BW-N20W20+ Mini-Circuits 1: ¥41,199.4 275On Order	Mfr. Part # BW-N20W20+ Mouser Part # 139-BW-N20W20	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / N / 20dB 20W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	275On Order On Order Ship Dates Mfr. #: BW-N20W20+ Stock: 0 On Order: 75 Expected 12/21/2026 100 Expected 1/27/2027 100 Expected 2/15/2027 Factory Lead-Time: 17 Weeks	¥41,199.4 View Quote	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	20 dB	20 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN /N / 20dB 50W RoHS BW-N20W50+ Mini-Circuits 1: ¥86,372 39On Order	Mfr. Part # BW-N20W50+ Mouser Part # 139-BW-N20W50	Mini-Circuits	Attenuators - Interconnects FXD ATTEN /N / 20dB 50W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	39On Order On Order Ship Dates Mfr. #: BW-N20W50+ Stock: 0 On Order: 19 Expected 10/27/2026 20 Expected 2/10/2027 Factory Lead-Time: 17 Weeks	¥86,372	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	21 dB	50 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN / N / 30dB 20W RoHS BW-N30W20+ Mini-Circuits 1: ¥40,751 190On Order	Mfr. Part # BW-N30W20+ Mouser Part # 139-BW-N30W20	Mini-Circuits	Attenuators - Interconnects FXD ATTEN / N / 30dB 20W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	190On Order On Order Ship Dates Mfr. #: BW-N30W20+ Stock: 0 On Order: 90 Expected 11/30/2026 100 Expected 1/25/2027 Factory Lead-Time: 17 Weeks	¥40,751	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	31.5 dB	20 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW
Attenuators - Interconnects FXD ATTEN /N / 30dB 50W RoHS BW-N30W50+ Mini-Circuits 1: ¥86,372 28Expected 12/21/2026	Mfr. Part # BW-N30W50+ Mouser Part # 139-BW-N30W50	Mini-Circuits	Attenuators - Interconnects FXD ATTEN /N / 30dB 50W RoHS Learn More about Mini-Circuits mini circuits bw fixed attenuators	Datasheet	28Expected 12/21/2026	¥86,372	Min.: 1 Mult.: 1	N	0 Hz to 18 GHz	31.25 dB	50 W	Male / Female	50 Ohms	- 55 C	+ 100 C	BW

0 dB
0.5 dB
1 dB
1.29 dB
1.39 dB
1.75 dB
2 dB
2.07 dB
2.13 dB
3 dB
3.01 dB
3.23 dB
3.75 dB
3.8 dB
4 dB
4.51 dB
4.9 dB
5 dB
5.25 dB
6 dB