Audio Transformers / Signal Transformers

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SWB Wideband RF Transformers

Coilcraft SWB Wideband RF Transformers are available in both surface-mount and through-hole versions. The transformers feature 500Vrms, one-minute interwinding isolation, and a 250mA maximum current rating. The SWB components are resistant to soldering heat and have an ambient temperature range of -40°C to +85°C with a maximum temperature of +85°C (ambient + temperature rise). Coilcraft SWB Wideband RF Transformers are made with a ferrite core material and RoHS-compliant matte tin over nickel over phosphorus bronze terminations.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Termination Style	Frequency Range	Inductance	Isolation Voltage	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Package/Case	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB1010-SMLD Coilcraft 1: $4.11 2,371In Stock 2,000Expected 2026/11/20	Mfr. Part No. SWB1010-SMLD Mouser Part No 994-SWB1010-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	2,371In Stock 2,000Expected 2026/11/20	Cut Tape $4.11 $3.34 $3.30 Reel $2.81 $2.67 View $2.59 $2.51 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB1010-1-SMLD Coilcraft 1: $3.72 161In Stock 500Expected 2027/01/08	Mfr. Part No. SWB1010-1-SMLD Mouser Part No 994-SWB1010-1-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	161In Stock 500Expected 2027/01/08	Cut Tape $3.72 $3.02 $2.99 Reel $2.54 $2.42 View $2.35 $2.28 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB3010-SMLD Coilcraft 1: $4.11 1In Stock 500Expected 2026/12/18	Mfr. Part No. SWB3010-SMLD Mouser Part No 994-SWB3010-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	1In Stock 500Expected 2026/12/18	Cut Tape $4.11 $3.34 $3.30 Reel $2.81 $2.67 View $2.59 $2.51 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB3010-PCL Coilcraft 1: $4.11 17In Stock	Mfr. Part No. SWB3010-PCL Mouser Part No 994-SWB3010-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	17In Stock	$4.11 $3.34 $3.20 $3.00 View $2.90 $2.81 $2.67 $2.59 $2.51	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec SWB1040-PCL Coilcraft 1: $6.04 14In Stock	Mfr. Part No. SWB1040-PCL Mouser Part No 994-SWB1040-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	14In Stock	$6.04 $4.68 $4.49 $4.36 View $4.21 $3.98 $3.85 $3.72 $3.70	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB2010-1-SMLD Coilcraft 1: $3.72 500In Stock	Mfr. Part No. SWB2010-1-SMLD Mouser Part No 994-SWB2010-1-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	500In Stock	Cut Tape $3.72 $3.02 $2.99 Reel $2.54 $2.42 View $2.35 $2.28 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB1010-1-PCL Coilcraft 1: $3.72 66In Stock 70Expected 2026/12/28	Mfr. Part No. SWB1010-1-PCL Mouser Part No 994-SWB1010-1-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	66In Stock 70Expected 2026/12/28	$3.72 $3.02 $2.90 $2.72 View $2.61 $2.54 $2.42 $2.35 $2.28	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB1010-PCL Coilcraft 1: $4.11 67In Stock 140Expected 2026/11/20	Mfr. Part No. SWB1010-PCL Mouser Part No 994-SWB1010-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	67In Stock 140Expected 2026/11/20	$4.11 $3.34 $3.20 $3.00 View $2.90 $2.81 $2.67 $2.59 $2.51	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB2010-1-PCL Coilcraft 1: $3.72 76In Stock	Mfr. Part No. SWB2010-1-PCL Mouser Part No 994-SWB2010-1-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	76In Stock	$3.72 $3.02 $2.90 $2.72 View $2.61 $2.54 $2.42 $2.35 $2.28	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB2010-PCL Coilcraft 1: $4.11 42In Stock	Mfr. Part No. SWB2010-PCL Mouser Part No 994-SWB2010-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	42In Stock	$4.11 $3.34 $3.20 $3.00 View $2.90 $2.81 $2.67 $2.59 $2.51	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec SWB2040-PCL Coilcraft 1: $6.04 54In Stock	Mfr. Part No. SWB2040-PCL Mouser Part No 994-SWB2040-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	54In Stock	$6.04 $4.68 $4.49 $4.36 View $4.21 $3.98 $3.85 $3.72 $3.70	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB2010-SMLD Coilcraft 1: $4.11 1,485Expected 2026/11/30	Mfr. Part No. SWB2010-SMLD Mouser Part No 994-SWB2010-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	1,485Expected 2026/11/30	Cut Tape $4.11 $3.34 $3.30 Reel $2.81 $2.67 View $2.59 $2.51 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	5 kHz to 100 MHz	780 uH	500 V	- 40 C	+ 85 C		13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec SWB3010-1-PCL Coilcraft 1: $3.72 70Expected 2026/11/20	Mfr. Part No. SWB3010-1-PCL Mouser Part No 994-SWB3010-1-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	70Expected 2026/11/20	$3.72 $3.02 $2.90 $2.72 View $2.61 $2.54 $2.42 $2.35 $2.28	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1.5:1sec SWB1015-PCL Coilcraft 1: $3.72 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB1015-PCL Mouser Part No 994-SWB1015-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1.5:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	$3.72 $3.02 $2.90 $2.72 View $2.61 $2.54 $2.42 $2.35 $2.28	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	100 kHz to 150 MHz	51 uH, 80 uH	500 V	- 40 C	+ 85 C		7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1.5:1sec SWB1015-SMLD Coilcraft 500: $2.54 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB1015-SMLD Mouser Part No 994-SWB1015-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1.5:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $2.54 $2.42 $2.35 $2.28	Min.: 500 Mult.: 500 : 500	RF Transformers		SMD/SMT	100 kHz to 150 MHz	51 uH, 80 uH	500 V	- 40 C	+ 85 C		13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec SWB1040-SMLD Coilcraft 500: $3.85 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB1040-SMLD Mouser Part No 994-SWB1040-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $3.85 $3.72 $3.70	Min.: 500 Mult.: 500 : 500	RF Transformers		SMD/SMT	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C		13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec SWB2040-SMLD Coilcraft 500: $2.99 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB2040-SMLD Mouser Part No 994-SWB2040-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $2.99 $2.94 $2.85 $2.71	Min.: 500 Mult.: 500 : 500	RF Transformers		SMD/SMT	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C		13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec SWB3010-1-SMLD Coilcraft 500: $2.54 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB3010-1-SMLD Mouser Part No 994-SWB3010-1-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $2.54 $2.42 $2.35 $2.28	Min.: 500 Mult.: 500 : 500	RF Transformers		SMD/SMT	40 kHz to 175 MHz	95 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1.5:1sec SWB3015-PCL Coilcraft 1: $3.72 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB3015-PCL Mouser Part No 994-SWB3015-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 1.5:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	$3.72 $3.02 $2.90 $2.72 View $2.61 $2.54 $2.42 $2.35 $2.28	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	100 kHz to 150 MHz	51 uH, 80 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1.5:1sec SWB3015-SMLD Coilcraft 500: $2.54 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB3015-SMLD Mouser Part No 994-SWB3015-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 1.5:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Reel $2.54 $2.42 $2.35 $2.28	Min.: 500 Mult.: 500 : 500	RF Transformers		SMD/SMT	100 kHz to 150 MHz	51 uH, 80 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel
Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec SWB3040-PCL Coilcraft 1: $4.64 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB3040-PCL Mouser Part No 994-SWB3040-PCL	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, TH 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	$4.64 $3.68 $3.54 $3.30 View $3.13 $2.99 $2.94 $2.85 $2.71	Min.: 1 Mult.: 1	RF Transformers	Pin Terminal Transformers	Through Hole	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C	Single	7.62 mm x 7.87 mm x 5.72 mm	7.62 mm	7.87 mm	5.72 mm	SWB	Tube
Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec SWB3040-SMLD Coilcraft 1: $4.64 Non-Stocked Lead-Time 11 Weeks	Mfr. Part No. SWB3040-SMLD Mouser Part No 994-SWB3040-SMLD	Coilcraft	Audio Transformers / Signal Transformers Wideband RF, SMD 250mA 4:1sec Learn More about Coilcraft swb transformers	Datasheet	Non-Stocked Lead-Time 11 Weeks	Cut Tape $4.64 $3.68 $3.54 $3.52 Reel $2.99 View $2.94 $2.85 $2.71 MouseReel Available	Min.: 1 Mult.: 1 : 500	RF Transformers		SMD/SMT	200 kHz to 300 MHz	25 uH, 95 uH	500 V	- 40 C	+ 85 C	Single	13.21 mm x 7.87 mm x 5.72 mm	13.21 mm	7.87 mm	5.72 mm	SWB	Reel, Cut Tape, MouseReel

SWB Wideband RF Transformers

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