• Ferrite shielded, low EMI
• Ferrite core material
• 500Vdc isolation between windings
• RoHS compliant
Applications
• As a transformer: SEPIC, flyback
• As an inductor: Buck, boost, coupled inductor
• Digital cameras, CD players, cellular phones, and PDA’s
• PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature: -40°C to +125°C
• Operating temperature range: -40°C to +125°C
(Range is application specific).
• Solder reflow temperature: 260°C max. for 10 seconds max.
Packaging
• Supplied in tape and reel packaging, SDQ12-3800, SDQ25-2900 parts
per reel, 13” diameter reel
Description
• 125°C maximum total temperature operation
• Dual winding inductors that can be used as either a single inductor,or
in coupled inductor/transformer applications (1:1 turns ratio)
• Windings can be connected in series or parallel, offering a broad range
of inductance and current ratings
• Current range from 6.43 to 0.063 Amps
• Inductance range from 0.47µH to 4.03mH
Low-Profile Dual Winding Shielded Inductor/Transformer
SDQ Series
06-13-08 SB-BU08352 Page 1 of 4 Data Sheet: 4339
SMD Device
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SDQ12-R47-R 0.47 A 0.49±30% 2.78 4.34 0.0325 2.45 1.96±30% 1.39 2.17 0.1298 4.90
SDQ12-1R0-R 1 B 0.81 2.49 3.38 0.0403 3.15 3.24 1.25 1.69 0.1611 6.30
SDQ12-1R5-R 1.5 C 1.69 1.69 2.34 0.0870 4.55 6.76 0.847 1.17 0.3481 9.10
SDQ12-2R2-R 2.2 D 2.25 1.60 2.03 0.0977 5.25 9.00 0.800 1.01 0.3908 10.5
SDQ12-3R3-R 3.3 E 3.61 1.28 1.60 0.1527 6.65 14.44 0.640 0.800 0.6106 13.3
SDQ12-4R7-R 4.7 F 4.41 1.12 1.45 0.1990 7.35 17.64 0.560 0.724 0.7959 14.7
SDQ12-6R2-R 6.2 G 6.25 1.02 1.22 0.2387 8.75 25.00 0.512 0.608 0.9548 17.5
SDQ12-8R2-R 8.2 H 8.41 0.868 1.05 0.3318 10.15 33.64 0.434 0.524 1.33 20.3
SDQ12-100-R 10 J 9.61 0.831 0.981 0.3620 10.85 38.44 0.416 0.490 1.45 21.7
SDQ12-150-R 15 K 15.21 0.658 0.779 0.5766 13.65 60.84 0.329 0.390 2.31 27.3
SDQ12-220-R 22 L 22.09 0.548 0.647 0.8332 16.45 88.36 0.274 0.323 3.33 32.9
SDQ12-330-R 33 M 32.49 0.439 0.533 1.29 19.95 130.0 0.220 0.267 5.18 39.9
SDQ12-470-R 47 N 47.61 0.401 0.441 1.55 24.15 190.4 0.201 0.220 6.21 48.3
SDQ12-680-R 68 O 68.89 0.326 0.366 2.36 29.05 275.6 0.163 0.183 9.43 58.1
SDQ12-820-R 82 P 82.81 0.309 0.334 2.62 31.85 331.2 0.154 0.167 10.49 63.7
(1) Test Parameters:100kHz,.0.25 Vrms 0.0Adc
(2) Irms:DC current for approximately ΔT of 40°C without core loss.It is recommended that the
temperature of the part not to exceed 125°C.Derating is necessary for AC currents
(3) Isat:Peak current for approximately 30% rolloff @20°C
(4) DCR limits @20°C
(5) Applied Volt-Time product (V-µS) across the inductor at 100kHz necessary to generate a core loss equal
to 10% of the total losses for a 40°C temperature rise.Derating of the Irms is required to
prevent excessive temperature rise.
Part Number Definition:
SDQ12-XXX-R
SDQ12 = Product code and Size
XXX = Inductance in uH,R = Decimal point
If no R is present,third character = # of zeros.
-R suffix indicated RoHS compliant