PFD3215 Datasheet, PDF (1/3 Pages) Coilcraft lnc. – Coupled Chip Inductors

Document 982F-1
For Flyback,
Coupled
Chip
Inductors
–
PFD3215
SEPIC and other
applications
03.1,3321max
1
4
L1
L2
0.059
1,5
max
2
3
0.078
1,98
0.006
0,15
0.014 ±0.003
0,356 ±0,0762
0.024
0,610
1
2
4
0.092
2,33
max
4
3
1
0.088
2,24
0.030
0,762
3
2
0.025
0,635
Dimensions are in
inches
mm
Recommended
Land Pattern
0.028
0,711
The PFD3215 has a footprint less than 3.2 × 2.3 mm,
making this shielded coupled inductor ideal for applications
with limited board space. It is designed for use in a variety
of circuits including flyback, multi-output buck and SEPIC.
These inductors provide high efficiency and excellent cur-
rent handling in a rugged, low cost part.
They can also be used as two single inductors connected
in series or parallel, as a wideband transformers or as a
common mode choke.
+
D
L1
L2
C
V_IN
C
SW
+
V_OUT
–
–
Typical Flyback Converter
L2 ^{D C}
+
V_OUTAUX
–
+
+
L1
V_IN
D
SW
C
V_OUT
–
–
Typical Buck Converter with auxiliary output
+
L1
V_IN
Q
C1
L2
D
C
+
V_OUT
–
–
Typical SEPIC schematic
Refer to Application Note, Document 639,
“Selecting Coupled Inductors for SEPIC Applications”
Core material Ferrite
Core and winding loss  Go to online calculator
Environmental  RoHS compliant, halogen free
Weight  18 – 28 mg
Terminations  RoHS compliant silver-palladium-platinum-glass frit.
Ambient temperature  –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature  Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Winding to winding isolation  250 Vrms, one minute
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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging  2000/7″ reel; 7500/13″ reel  Plastic tape:  8 mm wide,
0.20 mm thick, 4 mm pocket spacing, 1.21 mm pocket depth
PCB washing  Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
US [e-mail] ^notice.
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Singapore + 65-6484 8412 [e-mail]
Document 982F-1  Revised 12/05/12
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