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MSD7342 Dataheets PDF



Part Number MSD7342
Manufacturers Coilcraft
Logo Coilcraft
Description Coupled Inductors
Datasheet MSD7342 DatasheetMSD7342 Datasheet (PDF)

Document 621-1 Coupled Inductors MSD7342 ForFlyback,SEPIC,Zeta and other Applications • Tight coupling (k ≥ 0.97) and 200 V isolation make the MSD7342 series of coupled inductors ideal for use in a variety of circuits including flyback, multi-output buck and SEPIC. • They provide high inductance, high efficiency and excellent current handling in a rugged, low cost part. • Can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transforme.

  MSD7342   MSD7342


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Document 621-1 Coupled Inductors MSD7342 ForFlyback,SEPIC,Zeta and other Applications • Tight coupling (k ≥ 0.97) and 200 V isolation make the MSD7342 series of coupled inductors ideal for use in a variety of circuits including flyback, multi-output buck and SEPIC. • They provide high inductance, high efficiency and excellent current handling in a rugged, low cost part. • Can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer. 0.72,955max 0.72,955max 123 Dot indicates pin 1 1 L1 3 2 L2 4 04.1,681max 0.150 3,8 0.028 0,7 0.091 2,3 34 21 0.063 1,6 Dimensions are in inches mm Recommended Land Pattern 0.083 2,1 If board traces are run in these areas, consider masking them to prevent shorting. 0.110 2,8 21 34 0.130 3,3 0.043 1,10 + D L1 L2 C VIN C SW – Typical Flyback Converter + VOUT – L2 D C + VOUTAUX – ++ L1 VIN SW D C VOUT –– Typical Buck Converter with auxiliary output + VIN C L1 Q C1 L2 D C + VOUT –– Typical SEPIC schematic + VIN C – Q C1 L2 L1 D C Typical Zeta schematic + VOUT – Specifications subject to change without notice. Please check our website for latest information. Document 621-1  Revised 11/09/15 Document 621-2 Coupled Inductors– MSD7342 Series   Inductance2   DCR max3   SRF typ4 cCooeuffpicliinegn t L eLatkyapg5e 10%   Isat (A)6      Irms (A) 20% 30% both one   Part number1 ±20% (µH) (Ohms) (MHz) typ (µH) drop drop drop   windings7   winding8 MSD7342-252ML_ MSD7342-332ML_ MSD7342-472ML_ MSD7342-562ML_ MSD7342-682ML_ 2.5 0.033 55 3.3 0.037 43 4.7 0.051 35 5.6 0.063 32 6.8 0.070 30 0.97 0.14 6.0 6.2 6.3 0.99 0.09 5.2 5.3 5.4 0.99 0.11 4.1 4.3 4.6 0.99 0.09 3.9 4.1 4.2 0.99 0.14 3.7 3.8 3.9 2.17 3.06 2.05 2.89 1.74 2.46 1.57 2.22 1.49 2.10 MSD7342-822ML_ MSD7342-103ML_ MSD7342-123ML_ MSD7342-153ML_ MSD7342-183ML_ 8.2 0.075 27 10 0.100 22 12 0.120 20 15 0.130 18 18 0.170 15 0.98 0.25 3.3 3.4 3.5 0.98 0.30 2.8 2.9 3.0 0.98 0.36 2.5 2.6 2.7 0.98 0.49 2.2 2.3 2.4 >0.99 0.16 2.0 2.2 2.3 1.44 2.03 1.24 1.76 1.14 1.61 1.09 1.54 0.95 1.35 MSD7342-223ML_ MSD7342-273ML_ MSD7342-333ML_ MSD7342-393ML_ MSD7342-473ML_ 22 27 33 39 47 0.220 13.5 >0.99 0.20 1.9 2.0 2.1 0.250 12.0 >0.99 0.20 1.7 1.8 1.9 0.270 11.0 >0.99 0.15 1.5 1.6 1.7 0.380 10.0 0.99 0.70 1.3 1.4 1.5 0.420 9.5 >0.99 0.30 1.2 1.3 1.4 0.84 1.19 0.79 1.11 0.76 1.07 0.64 0.90 0.61 0.86 MSD7342-563ML_ 56 MSD7342-683ML_ 68 MSD7342-823ML_ 82 MSD7342-104ML_ 100 MSD7342-124ML_ 120 0.460 8.7 >0.99 0.51 1.1 1.2 1.3 0.600 7.3 >0.99 0.51 1.0 1.1 1.2 0.680 6.2 0.99 1.17 0.90 1.00 1.1 0.770 5.5 >0.99 0.96 0.80 0.92 0.98 1.03 4.5 >0.99 0.61 0.70 0.80 0.90 0.58 0.82 0.51 0.72 0.48 0.67 0.45 0.63 0.39 0.55 MSD7342-154ML_ MSD7342-184ML_ MSD7342-224ML_ MSD7342-274ML_ MSD7342-334ML_ 150 180 220 270 330 1.35 1.52 1.72 2.41 2.70 4.0 3.8 3.5 3.3 3.0 >0.99 >0.99 >0.99 >0.99 >0.99 0.54 0.65 0.76 0.80 0.75 0.62 0.66 0.73 1.43 0.59 0.62 0.66 1.56 0.55 0.57 0.60 1.65 0.49 0.52 0.54 0.34 0.32 0.30 0.25 0.24 0.48 0.45 0.42 0.36 0.34 MSD7342-394ML_ MSD7342-474ML_ MSD7342-564ML_ MSD7342-684ML_ MSD7342-824ML_ 390 470 560 680 820 3.05 4.00 4.43 5.00 6.80 2.8 2.6 2.5 2.3 2.2 0.99 0.99 >0.99 0.99 >0.99 4.73 0.45 0.47 0.50 5.50 0.41 0.43 0.46 4.85 0.38 0.40 0.42 7.59 0.36 0.37 0.38 8.01 0.30 0.32 0.35 0.23 0.20 0.19 0.18 0.15 0.32 0.28 0.26 0.25 0.21 MSD7342-105ML_ 1000 7.80 2.0 >0.99 8.69 0.27 0.29 0.31 0.14 0.20 1. When ordering, please specify termination and packaging codes: MSD7342-105MLC Termination: L = RoHS compliant matte tin over nickel over phos bronze. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic tape (250 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 (1000 parts per full reel). 2. Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value. 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. 4. SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. 5. Leakage inductance is for L1 and is measured with L2 shorted. 6. DC current, at which the in.


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