Datasheet 3D Models

WB Through Hole

Wideband RF Transformers

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Electrical specifications at 25°C. Measurements are referenced to 50 Ohms.

Part number (Hover for schematics)	L min per winding (µH) 1		DCR max (mΩ) 2		Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
Part number (Hover for schematics)	Pri	Sec	Pri	Sec	Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
WB1.18-3L	90	108	300	330	1 : 1.18	250	0.5	0.04 — 300	500	A
WB1.5-6L	56	84	120	150	1 : 1.5	250	0.26	0.05 — 325	500	A
WB1-1L	27	27	75.0	75.0	1 : 1	250	0.7	0.15 — 500	500	A
WB16-1L	56	896	75.0	330	1 : 16	250	0.6	0.05 — 100	500	A
WB1-6L	25	25	100	100	1 : 1	250	0.5	0.1 — 350	500	A
WB2.5-6L	30	75	100	130	1 : 2.5	250	0.26	0.08 — 225	500	A
WB2-1-2WL	38	75	100	150	1 : 2	250	1	0.08 — 700	500	A
WB36-1L	25	900	50.0	180	1 : 36	250	0.5	0.1 — 45	500	A
WB4-6L	25	100	100	200	1 : 4	250	0.5	0.1 — 125	500	A
WB9-1L	25	225	100	250	1 : 9	250	0.57	0.125 — 125	500	A

Part number (Hover for schematics)	L min per winding (µH) 1		DCR max (mΩ) 2		Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	DC imbalance 4	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
Part number (Hover for schematics)	Pri	Sec	Pri	Sec	Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	DC imbalance 4	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
WB1-1TL	25	25	100	100	1 : 1	250	0.51	30.0	0.1 — 375	500	B
WB13-1TL	17	221	90.0	200	1 : 13	250	0.72	10.0	0.15 — 125	500	B
WB16-6TL	56	896	75.0	330	1 : 16	250	0.6	25.0	0.05 — 100	500	B
WB1-6TL	70	70	150	150	1 : 1	250	0.2	18.0	0.05 — 200	500	B
WB2.5-6TL	56	140	120	200	1 : 2.5	250	0.28	13.0	0.05 — 125	500	B
WB2-1TL	38	75	100	150	1 : 2	250	1	29.0	0.07 — 400	500	B
WB3-1TL	96	270	110	200	1 : 3	250	0.4	4.0	0.04 — 500	500	B
WB4-1HL	25	100	120	160	1 : 4	250	0.5	15.0	0.1 — 500	500	B
WB5-1TL	48	240	220	500	1 : 5	250	0.3	13.0	0.05 — 400	500	B
WB8-1TL	18	144	100	270	1 : 8	250	0.76	17.0	0.15 — 400	500	B

Part number (Hover for schematics)	L min per winding (µH) 1		DCR max (mΩ) 2		Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	DC imbalance 4	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
Part number (Hover for schematics)	Pri	Sec	Pri	Sec	Imp. ratio pri:sec 3	Current rating (mA)	Insertion loss (db)	DC imbalance 4	Bandwidth (MHz)	Isolation Voltage (Vrms)	Schematic
WBT1.5-1L	48	70	150	180	1 : 1.5	250	0.3	19.0	0.04 — 350	500	C
WBT16-1L	25	400	100	300	1 : 16	250	0.5	7.5	0.1 — 100	500	C
WBT1-6L	70	70	150	150	1 : 1	250	0.25	19.0	0.04 — 200	500	C
WBT2.5-6L	70	175	150	200	1 : 2.5	250	0.26	11.0	0.05 — 100	500	C
WBT25-1L	25	625	100	350	1 : 25	250	0.5	6.0	0.1 — 65	500	C
WBT4-1AL	96	384	110	220	1 : 4	250	0.4	3.5	0.04 — 350	500	C
WBT4-1L	45	135	120	160	1 : 4	250	0.26	13.0	0.04 — 150	500	C

Notes

Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
DCR measured on a micro-ohmmeter at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Impedance ratio is for the full primary winding to the full secondary winding.
DC imbalance is the difference in current measured at pins 1 and 3 with the source at pin 2. Inductance drop is 15% at maximum imbalance.