WBC Series SMT Mini Wideband Transformers - Coilcraft - (Version JPG) - PDF Catalogue | Technical Documentation

See other catalogues for Coilcraft

Chip inductor, Power inductor, Ferrite chip inductor, Connector, Common-mode filter

Text version of the page

Document 424 -1

SMT Mini Wideband Transformers

• Smallest wideband transformer: 4 mm square 3 mm high

• 300 V interwinding isolation, 1/4 Watt RF input power

• 250 mA max current rating.

Designer's Kit C393 contains three of each part Core material Ferrite

Terminations RoHS compliant tin-silver-copper over silver-platinum-glass frit. Other terminations available at additional cost. Weight 68.0 - 88.8 mg Ambient temperature -40°C to +85°C Storage temperature Component: -40°C to +85°C. Packaging: -40°C to +80°C

Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity)

Mean Time Between Failures (MTBF) 16,666,667 hours Packaging 750 per 7"reel; 3000 per 13" reel; Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth

PCB washing Only pure water or alcohol recommended


		Impedance		Insertion	Pins 4-6 (primary)		Pins 1-3 (secondary)		DC
Part		ratio²	Bandwidth	loss max	L min³	DCR max⁴	L min³	DCR max⁴	imbalance⁵	Color
number¹ Schematic		pri : sec	(MHz)	(dB)	(uH)	(mOhm)	(uH)	(mOhm)	max (mA)	dot
WBC1-1L	A	1 : 1	0.400 - 600	0.40	10	120	10	120	—	Brown
WBC1-1TL	B	1:1	0.250-750	0.58	11	75	11	75	36	Brown
WBC2-1TL	B	1:2	0.200-500	0.50	10	120	20	150	8.5	Red
WBC3-1TL	B	1:3	0.300 - 900	0.60	9	100	27	150	8.5	Orange
WBC4-1TL	B	1:4	0.250-750	1.0	12	55	48	120	30	Yellow
WBC4-14L	B	1:4	1.500 - 1200	2.0	2	50	8	100	15	Green
WBC4-1WL	B	1:4	0.500-1000	0.90	5	60	20	120	10	White
WBC4-6TL	B	1:4	0.300-700	0.30	9	80	36	200	7.5	Blue
WBC8-1L	B	1:8	0.150-600	0.60	22	120	176	310	17	Gray
WBC9-1L	B	1:9	0.300-500	0.54	9	80	81	230	5	White
WBC16-1TL	B	1 : 16	0.600 - 300	0.80	5	60	80	230	5	Violet
WBC4-4L	C	1:4	0.250 - 800	1.0	12	60	48	120	30	Yellow

When ordering, please specify termination and packaging codes:

11-¹

WBC4-4 LC

Schematics A

Termination: L :

RoHS compliant tin-silver-copper (95.5/4/0.5) over

silver-palladium-platinum Special order: S = non-RoHS tin-lead (63/37).

Pri

Sec

Packaging: C =

7" machine-ready reel. EIA-481 embossed plastic

tape (750 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. D =13" machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3000 parts per

full reel).

2. Impedance ratio is for the full primary winding to the full secondary winding.

3. Inductance measured at 100 kHz, 0.1V, 0 Adc on an Agilent/HP 4192 or equivalent.

4. DCR measured on a micro-ohmmeter.

5. DC imbalance is the maximum difference in current measured at pins 1 and 3 with the source at pin 2. Inductance drop is 15% at maximum imbalance.

6. Electrical specifications at 25°C.

Refer to Doc 362 "Soldering Surface Mount Components" before soldering.

3 o1

Pri

Pri 5

2 Sec

Specifications subject to change without notice. Please check our website for latest information.

Document 424-1 Revised 10/21/08

1102 Silver Lake Road Cary, Illinois 60013 Phone 847/639-6400 Fax 847/639-1469

E-mail info@coilcraft.com Web http://www.coilcraft.com

WBC Series SMT Mini Wideband Transformers - Coilcraft - #1

Chip inductor, Power inductor, Ferrite chip inductor, Connector, Common-mode filter