Leaded Wideband RF Transformers – WB Series

• Also available in a surface mount version
• Available in a variety of impedance ratios
• Tapped or untapped configurations
• 250 mA max current rating, 1/4 Watt RF input power rating
• 500 Vrms isolation, primary to secondary
• RoHS-compliant. Matte tin over nickel over copper terminations
• COTS Plus tin-silver-copper and tin-lead terminations available
• Custom versions available

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SPECIFICATIONS

Frequency Response  –  No taps    Secondary tap     Primary and secondary taps

Dimensions

	WB1-1L	1 : 1	0.150 - 500	0.70	27	75	27	75	—
	WB1-6L	1 : 1	0.100 - 350	0.50	25	100	25	100	—
	WB1.18-3L	1 : 1.18	0.040 - 300	0.50	90	300	108	330	—
	WB1.5-6L	1 : 1.5	0.050 - 325	0.26	56	120	84	150	—
	WB2-1-2WL	1 : 2	0.080 - 700	1.00	38	100	75	150	—
	WB2.5-6L	1 : 2.5	0.080 - 225	0.26	30	100	75	130	—
	WB4-6L	1 : 4	0.100 - 125	0.50	25	100	100	200	—
	WB9-1L	1 : 9	0.125 - 125	0.57	25	100	225	250	—
	WB16-1L	1 : 16	0.050 - 100	0.60	56	75	896	330	—
	WB36-1L	1 : 36	0.100 - 45	0.50	25	50	900	180	—
	WB1-1TL	1 : 1	0.100 - 375	0.51	25	100	25	100	30
	WB1-6TL	1 : 1	0.050 - 200	0.20	70	150	70	150	18
	WB2-1TL	1 : 2	0.070 - 400	1.00	38	100	75	150	29
	WB2.5-6TL	1 : 2.5	0.050 - 125	0.28	56	120	140	200	13
	WB3-1TL	1 : 3	0.040 - 500	0.40	96	110	270	200	4.0
	WB4-1HL	1 : 4	0.100 - 500	0.50	25	120	100	160	15
	WB4-6TL	1 : 4	0.050 - 200	0.50	43	120	172	160	5.0
	WB5-1TL	1 : 5	0.050 - 400	0.30	48	220	240	500	13
	WB8-1TL	1 : 8	0.150 - 400	0.76	18	100	144	270	17
	WB13-1TL	1 : 13	0.150 - 125	0.72	17	90	221	200	10
	WB16-6TL	1 : 16	0.050 - 100	0.60	56	75	896	330	25
	WBT1-6L	1 : 1	0.040 - 200	0.25	70	150	70	150	19
	WBT1.5-1L	1 : 1.5	0.040 - 350	0.30	60	150	90	180	19
	WBT2.5-6L	1 : 2.5	0.050 - 100	0.26	70	150	175	200	11
	WBT4-1L	1 : 3	0.040 - 150	0.26	45	120	135	160	13
	WBT4-1AL	1 : 4	0.040 - 350	0.40	96	110	384	220	3.5
	WBT16-1L	1 : 16	0.100 - 100	0.50	25	100	400	300	7.5
	WBT25-1L	1 : 25	0.100 - 65	0.50	25	100	625	350	6.0

1	Impedance ratio is for the full primary winding to the full secondary winding.
2	Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4192 or equivalent.
3	DCR measured on a micro-ohmmeter
4	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.
5	Ambient temperature range:	–40°C to +85°C
6	Storage temperature range:	Component: –40°C to +85°C Packaging: –55°C to +80°C
7	Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.