Inductor Finders Power  |   RF
Power Magnetics Tools
RF Inductor Tools
New! CM Choke Finder
New! LC Filter Designer
IC / Inductor Match Tool
Application Notes
Other Tools
Designer's Kits

Shielded Coupled Power Inductors
MSD1278 Series


SPECIFICATIONS


Part number1
Click to get parts
Inductance2
(µH)
DCR
max3
(Ohms)
SRF
typ4
(MHz)
Coupling
coefficient
typ
Leakage
L typ5
(µH)
Isat6
(A)
Irms (A)
both
windings7
one
winding8
MSD1278-472ML_ 4.7 ±20% 0.038 32.0 0.98 0.22 14.9 3.16 4.47
MSD1278-562ML_ 5.6 ±20% 0.046 25.0 0.98 0.23 13.4 2.87 4.06
MSD1278-682ML_ 6.8 ±20% 0.048 24.0 0.98 0.22 13.1 2.81 3.98
MSD1278-822ML_ 8.2 ±20% 0.050 18.0 0.98 0.34 10.8 2.76 3.9
MSD1278-103ML_ 10 ±20% 0.058 16.5 0.98 0.34 10.5 2.56 3.62
MSD1278-123ML_ 12 ±20% 0.062 14.5 0.98 0.36 9.6 2.48 3.50
MSD1278-153ML_ 15 ±20% 0.072 11.8 0.99 0.41 9.1 2.30 3.25
MSD1278-183ML_ 18 ±20% 0.080 10.5 0.99 0.37 8.0 2.18 3.08
MSD1278-223ML_ 22 ±20% 0.096 9.0 0.99 0.41 6.8 1.99 2.81
MSD1278-273ML_ 27 ±20% 0.120 8.4 0.99 0.43 6.5 1.78 2.52
MSD1278-333ML_ 33 ±20% 0.150 7.6 0.99 0.56 5.6 1.59 2.25
MSD1278-393ML_ 39 ±20% 0.160 6.5 0.99 0.64 5.5 1.54 2.18
MSD1278-473ML_ 47 ±20% 0.180 6.0 0.99 0.70 5.2 1.45 2.05
MSD1278-563ML_ 56 ±20% 0.190 5.6 0.99 0.76 4.5 1.41 2.00
MSD1278-683ML_ 68 ±20% 0.210 5.0 0.99 0.88 4.1 1.35 1.90
MSD1278-823ML_ 82 ±20% 0.280 4.1 0.99 0.85 3.8 1.16 1.65
MSD1278-104ML_ 100 ±20% 0.300 3.6 >0.99 0.90 3.4 1.13 1.59
MSD1278-124KL_ 120 ±10% 0.410 3.2 0.99 1.31 3.2 0.96 1.36
MSD1278-154KL_ 150 ±10% 0.460 3.0 >0.99 1.46 2.8 0.91 1.29
MSD1278-184KL_ 180 ±10% 0.510 2.7 >0.99 0.98 2.5 0.86 1.22
MSD1278-224KL_ 220 ±10% 0.690 2.5 >0.99 1.54 2.3 0.74 1.05
MSD1278-274KL_ 270 ±10% 0.900 2.1 >0.99 1.17 2.1 0.65 0.92
MSD1278-334KL_ 330 ±10% 1.02 2.0 0.99 4.14 1.9 0.61 0.86
MSD1278-394KL_ 390 ±10% 1.12 1.8 >0.99 1.64 1.7 0.58 0.82
MSD1278-474KL_ 470 ±10% 1.43 1.6 >0.99 0.25 1.6 0.50 0.70
MSD1278-564KL_ 560 ±10% 1.69 1.5 >0.99 2.68 1.5 0.47 0.67
MSD1278-684KL_ 680 ±10% 2.29 1.4 >0.99 2.11 1.3 0.41 0.58
MSD1278-824KL_ 820 ±10% 2.55 1.3 >0.99 2.39 1.2 0.39 0.55
MSD1278-105KL_ 1000 ±10% 2.83 1.1 >0.99 4.28 1.1 0.37 0.52
1 When ordering, please specify termination and packaging codes: e.g. MSD1278-105KLD
  Termination: L = RoHS compliant matte tin over nickel over phos bronze
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
Packaging: D = 13" reel, machine-ready 
EIA-481 embossed plastic tape (500 parts per full reel).
B = Less than full reel
In tape, not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead.
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. DCR at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
4 SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value. Details
5 Leakage Inductance is for L1 and is measured with L2 shorted.
6 Isat: DC current, at which the inductance drops 30% (typ) from its value without current. It is the sum of the current flowing in both windings. Details
7 Irms, both windings: Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Determine temperature rise.
8 Irms, one winding: Current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Determine temperature rise.
9 Ambient temperature range: −40°C to +85°C with Irms current.
10 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
11 Maximum part temperature: +125°C (Ambient + temperature rise)
12 Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between.
13 Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.
PCB washing: Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

Home | Design Tools | Samples | Kits | Price + Stock | Sales | Support | Jobs | Index
Your comments and suggestions are welcome. Contact webmaster@coilcraft.com
Copyright © 2017, Coilcraft, Inc.   Privacy policy
Updated: April 11, 2017