Document 982F-1 For Flyback, SEPIC, Zeta and other applications Coupled Chip Inductors PFD3215 Halogen The PFD3215 has a footprint less than 3.2 2.3 mm, Free making this shielded coupled inductor ideal for applica- tions with limited board space. It is designed for use in a variety of circuits including flyback, multi-output buck, SEPIC and Zeta. AEC + Q200 85C 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 C V L1 L2 OUT C V IN SW Typical Flyback Converter + D V OUT 0.131 1 4 C AUX L2 max 3,32 L1 L2 0.059 max ++ 1,5 2 3 L1 V V C OUT D 0.078 IN SW 0.006 1,98 0,15 Typical Buck Converter with auxiliary output 0.088 0.014 0.003 0.024 0,356 0,0762 0,610 2,24 0.030 D 0,762 ++ 12 4 3 L1 C1 0.092 max 2,33 V V C Q L2 C OUT IN 4 3 12 Recommended 0.028 0.025 Typical SEPIC schematic Land Pattern 0,711 0,635 inches Dimensions are in mm ++ L2 C1 Q V D V CCL1 OUT IN Typical Zeta schematic Specifications subject to change without notice. US +1-847-639-6400 sales coilcraft.com Document 982F-1 Revised 10/08/21 US +1-847-639-6400 sales coilcraft.com Please check our website for latest information. UK +44-1236-730595 sales coilcraft-europe.com UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2021 Coilcraft Inc. 2021 This product may not be used in medical or high This product may not be used in medical or high TaiwanTaiwan +886-2-2264 3646 sales coilcraft.com.tw+886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice.Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information.Document 982F-2 PFD3215 Coupled Inductors for SEPIC applications 6 Isat (A) Irms (A) DCR SRF Coupling Leakage 2 3 4 5 Inductance max typ coefficient inductance 10% 20% 30% both one 1 7 8 Part number 20% (H) (Ohms) (MHz) typ typ (H) drop drop drop windings winding PFD3215-391ME 0.39 0.070 600 0.89 0.08 2.10 2.30 2.40 0.98 1.39 PFD3215-102ME 1.0 0.123 400 0.95 0.09 1.35 1.55 1.65 0.85 1.20 Halogen PFD3215-182ME 1.8 0.250 230 0.97 0.11 1.00 1.20 1.30 0.60 0.85 Free PFD3215-222ME 2.2 0.265 270 0.97 0.13 0.95 1.05 1.15 0.57 0.81 PFD3215-332ME 3.3 0.360 190 0.98 0.14 0.75 0.83 0.90 0.55 0.78 PFD3215-472ME 4.7 0.450 175 0.98 0.17 0.65 0.75 0.80 0.51 0.72 PFD3215-682ME 6.8 0.630 155 0.98 0.25 0.55 0.65 0.70 0.40 0.57 PFD3215-103ME 10 1.25 110 0.98 0.31 0.45 0.50 0.55 0.27 0.38 AEC + Q200 85C 1. When ordering, please specify packaging code: 3. DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value. PFD3215-103MEC 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads Packaging: C = 7 machine-ready reel. EIA-481 embossed plastic are connected in parallel, SRF is the same value. tape (2000 parts per full reel). Quantities less than 5. Leakage inductance is for the primary winding with the secondary full reel available: in tape (not machine ready) or with windings shorted. leader and trailer ( 25 charge). 6. DC current, at which the inductance drops the specified amount from its B = Less than full reel. In an effort to simplify our part value without current. It is the current flowing in one winding. numbering system, Coilcraft is eliminating the need 7. Equal current when applied to each winding simultaneously that causes for multiple packaging codes. When ordering, simply a 40C temperature rise from 25C ambient. See temperature rise change the last letter of your part number from B to C. calculation. D = 13 machine-ready reel. EIA-481 embossed plastic 8. Maximum current when applied to one winding that causes a 40C tape. Factory order only, not stocked (7500 parts per temperature rise from 25C ambient. See temperature rise calculation. full reel). 9. Electrical specifications at 25C. 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, Refer to Doc 639 Selecting Coupled Inductors for SEPIC Applications. 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads Refer to Doc 362 Soldering Surface Mount Components before soldering. are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. Coupled Inductor Core and Winding Loss Calculator This web-based utility allows you to enter frequency, peak-to-peak (ripple) current, and Irms current to predict temperature rise and overall losses, including core loss. Go to online calculator. PFD3215 Coupled Inductors for Flyback applications Inductance Inductance DCR Leakage 2 3 4 3 at 0 A at Ipk A max inductance Turns Ipk 1 Part number 20% (H) 20% (H) (Ohms) typ (H) ratio (A) PFD3215-391ME 0.39 0.27 0.070 0.08 1 : 1 2.40 PFD3215-102ME 1.0 0.70 0.123 0.09 1 : 1 1.65 PFD3215-182ME 1.8 1.26 0.250 0.11 1 : 1 1.30 PFD3215-222ME 2.2 1.54 0.265 0.13 1 : 1 1.15 PFD3215-332ME 3.3 2.31 0.360 0.14 1 : 1 0.90 PFD3215-472ME 4.7 3.29 0.450 0.17 1 : 1 0.80 PFD3215-682ME 6.8 4.76 0.630 0.25 1 : 1 0.70 PFD3215-103ME 10 7.00 1.25 0.31 1 : 1 0.55 1. When ordering, please specify packaging code: 2. Inductance is for the primary, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. PFD3215-103MEC 3. Peak primary current drawn at minimum input voltage. Packaging: C = 7 machine-ready reel. EIA-481 embossed plastic 4. Leakage inductance is for the primary winding with the secondary tape (2000 parts per full reel). Quantities less than windings shorted. full reel available: in tape (not machine ready) or with 5. Electrical specifications at 25C. leader and trailer ( 25 charge). Refer to Doc 362 Soldering Surface Mount Components before soldering. 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 D = 13 machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (7500 parts per full reel). Specifications subject to change without notice. Document 982F-2 Revised 10/08/21 US +1-847-639-6400 sales coilcraft.com Please check our website for latest information. UK +44-1236-730595 sales coilcraft-europe.com Coilcraft Inc. 2021 This product may not be used in medical or high Taiwan +886-2-2264 3646 sales coilcraft.com.tw risk applications without prior Coilcraft approval. China +86-21-6218 8074 sales coilcraft.com.cn Specification subject to change without notice. Singapore + 65-6484 8412 sales coilcraft.com.sg Please check web site for latest information.