MVR1271C-162MLC Datasheet, PDF (1/3 Pages) Coilcraft lnc. – VRM/ VRD Power Inductors - MVR

Document 420-1
VRM/ VRD Power Inductors – MVR
MVR1251T only
The MVR series provides greater current handling
capability than any other power inductor its size. While
requiring only one square centimeter of board space, this
inductor can handle up to 36 Amps of current.
These shielded inductors were developed for multi-phase
voltage regulators and are ideal for use in DC-DC con-
verters, battery-powered devices and high current power
supplies. Their flat wire construction ensures very low
DC resistance and offers an excellent performance-to-
height ratio. The materials used in these parts eliminate
all thermal aging issues.
The MVR12xxT is a high efficiency part that features very
low core loss. The MVR12xxC provides soft saturation
and is unaffected by part temperature up to 125°C.
Refer to the comparison curves for L vs Current and ESR
vs Frequency for performance differences.
For free evaluation samples, contact Coilcraft or order
them online at www.coilcraft.com.
^  L² DCR ^  SRF³ Height

±20% ±8% typ ^  Isat^{4  } Irms⁵ max
  _{Part number}1 _{(µH) (mOhm) (MHz) (A) (A) (mm)}
Low core loss
MVR1251T-251ML_ 0.25 0.925 160 35 25 5.1
MVR1251T-361ML_ 0.36 0.925 140 24 24 5.1
MVR1251T-561ML_ 0.56 0.925 110 13 25 5.1
Soft saturation
MVR1247C-361ML_ 0.36 0.925 120 36 24 4.7
MVR1255C-651ML_ 0.65 1.50 115 24 19 5.5
MVR1261C-112ML_ 1.10 1.95 95 20 20 6.1
MVR1271C-162ML_ 1.65 2.53 55 17 20 7.1
MVR1278C-232ML_ 2.30 3.08 50 16 17 7.8
1. When ordering, please specify termination and packaging codes:
MVR1278C-232MLC
Termination: L = RoHS compliant tin-silver over copper.
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.
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.
2. Inductance measured at 500 kHz, 0.1 Vrms, 0 Adc using a Coilcraft
SMD-A fixture in an Agilent/HP 4284A LCR meter or equivalent.
3. SRF measured on an Agilent/HP 8753ES.
4. DC current at which the inductance drops 30% (typ) for MVR12xxC
and 20% (typ) for MVR12xxT from its value without current.
5. Current that causes a 40°C temperature rise from 25°C ambient.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material  MVRxxxT: Ferrite;   MVRxxxxC: Powdered iron
Core and winding loss  See www.coilcraft.com/coreloss
Terminations  RoHS compliant tin-silver over copper. Other termina-
tions available at additional cost.
Weight  MVRT: 2.1 g;  MVRC: 2.45 – 3.86 g
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
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
MVR1247  200/7″ reel; 900/13″ reel
MVR1251  175/7″ reel; 700/13″ reel
MVR1255  175/7″ reel; 700/13″ reel
MVR1261  175/7″ reel; 700/13″ reel
MVR1271  100/7″ reel; 500/13″ reel
MVR1278  100/7″ reel; 500/13″ reel
Plastic tape:  24 mm wide, 16 mm pocket spacing
MVR1247  0.35 mm thick, 4.5 mm pocket depth
MVR1251  0.4 mm thick, 6.1 mm pocket depth
MVR1255  0.4 mm thick, 6.1 mm pocket depth
MVR1261  0.4 mm thick, 6.1 mm pocket depth
MVR1271  0.4 mm thick, 7.5 mm pocket depth
MVR1278  0.4 mm thick, 7.5 mm pocket depth
PCB washing  Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
US [phone] [e-mail]
UK [phone] [e-mail]
Taiwan [phone] [e-mail]
China [phone] [e-mail]
Singapore + 65-6484 8412 [e-mail]
Document 420-1  Revised 07/13/11
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.