Document 748-1
SMT Mini Wideband Transformer
• 3 dB bandwidth: 0.1 MHz to 3.5 GHz
• 1/4 Watt RF input power
• 250 mA max current rating.
Core material Ferrite
Terminations RoHS compliant tin-silver-copper over silver-platinum-
glass frit. Other terminations available at additional cost.
Weight 90 mg max
Interwinding isolation 300 V
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +85°C.
Tape and reel 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)
Packaging 750/7″ reel; 3000/13″ reel; Plastic tape: 12 mm wide,
0.3 mm thick, 8 mm pocket spacing, 2.9 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
Pins 1
–
4
Pins 2–3
Impedance
ratio
pri:sec
Insertion
loss max
(dB)
Part
Bandwidth
(MHz)
L min3
(µH)
DCR max4
(mOhm)
L min3
(µH)
DCR max4
(mOhm)
number1
JA4220-AL_
1:1
0.1 – 3500
0.2
15
120
15
120
1. When ordering, please specify termination and packaging code:
JA4220-ALC
Termination: L = RoHS compliant tin-silver-copper over silver-platinum-glass frit.
Special order: S = non-RoHS tin-lead (63/37).
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (750 parts per full reel). Quantities less than full reel available: in tape (not
machine ready) or with leader and trailer ($25 charge)
D = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (3000 parts per full reel).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes.
When ordering, simply change the last letter of your part number from B to C.
2. Inductance measured at 1 MHz, 0.1 V, 0 Adc on an Agilent/HP 4192 or equivalent.
3. DCR measured on a micro-ohmmeter.
4. Electrical specifications at 25°C.Measurements are referenced to 50 Ohms.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document 748-1 Revised 12/21/21
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2021
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.