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0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

MVR Series

VRM/VRD Power Inductors

RoHS compliant AEC-Q flag

Coilcraft low-profile MVR Series shielded power inductors are great for high current DC-DC converters and VRM/VRD controllers. High-temperature, low-loss materials do not exhibit thermal aging.

  • Very low DCR and high current handling
  • Low loss and soft saturation versions
  • Low profile with excellent performance-to-height ratio
  • Magnetic shielding allows high-density packaging
  • Designed for high-current DC-DC and VRM/VRD controllers
  • No thermal aging
Need parts for space, military or other critical applications? See Coilcraft CPS parts.
Buy Now:
Count Unit price
1 $2.32
175 $1.86
700 $1.62
1400 $1.33
2800 $1.14
5000 $1.05

For high volume or non-stock items, request a quote.

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Specifications

Electrical specifications at 25°C.

Low core loss version

Part number 1 Inductance (nH) 2
(Tolerance: ±20%)
DCR ± 8% (mΩ) 3 SRF typ (MHz) 4 Isat (mA) 5 Irms (A) 6
MVR1251T-251ML_ 250 0.93 160 35000 25.0
MVR1251T-361ML_ 360 0.93 140 24000 24.0
MVR1251T-561ML_ 560 0.93 110 13000 25.0

Soft saturation version

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR ± 8% (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
MVR1247C-361ML_ 0.36 0.93 120 36.0 24.0
MVR1255C-651ML_ 0.65 1.5 115 24.0 19.0
MVR1261C-112ML_ 1.1 2.0 95.0 20.0 20.0
MVR1271C-162ML_ 1.7 2.5 55.0 17.0 20.0
MVR1278C-232ML_ 2.3 3.1 50.0 16.0 17.0
Notes
  1. When ordering, please specify termination and packaging codes: e.g. MVR1278C-232MLC
  2. Inductance measured at 500 kHz, 0.1 Vrms using an Agilent/HP 4284A LCR meter or equivalent.
  3. DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured on an Agilent/HP 8753ES
  5. Isat: DC current at which the inductance drops 30% (typ) for MVR12xxC and 20% (typ) for MVR12xxT from its value without current. Temperature derating curves.
  6. Irms: Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

  • L = RoHS compliant tin-silver (96.5/3.5) over copper.
  • T = RoHS tin-silver-copper (95.5/4/0.5)(Special order, added cost)
  • S = non-RoHS tin-lead (63/37)(Special order, added cost)

Packaging:

  • C = 7" reel, 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" reel, machine-ready reel
    EIA-481 embossed plastic tape. Factory order only, not stocked. 
Environmental
Environmental:
RoHS compliant
Ambient temperature range:
–40°C to +85°C with Irms current, +85°C to +125°C with derated current
Storage temperature range:
Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
Maximum part temperature:
+125°C (Ambient + temperature rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs Current

Inductance vs Current Comparison

Inductance vs Frequency

Temperature Rise versus Current

Inductance vs Current

Inductance vs Frequency

Physical characteristics

mvrd.gif


dims_inches_mm-(1).gif
 
  Height (in. / mm) Length (in. / mm)
Body size typ max typ max
MVR1247 0.171 / 4,35 0.185 / 4,70 0.448 / 11,37 0.453 / 11,50
MVR1251 0.181 / 4,61 0.200 / 5,10 0.439 / 11,14 0.453 / 11,50
MVR1255 0.207 / 5,25 0.217 / 5,50 0.448 / 11,37 0.453 / 11,50
MVR1261 0.232 / 5,90 0.240 / 6,10 0.448 / 11,37 0.453 / 11,50
MVR1271 0.262 / 6,65 0.280 / 7,10 0.448 / 11,37 0.453 / 11,50
MVR1278 0.287 / 7,29 0.307 / 7,80 0.448 / 11,37 0.453 / 11,50

 

Tape and Reel specification

tapereel_pl.gif

 
  Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
  7" (178 mm) 13" (330 mm) A B C D E W P Po P1 H T part_or_y.gif
MVR1247 200 900* 178/330 60/100 13 30,4 24,4 24 16 4 2 4,55 0,35
MVR1251 175 700* 178/330 60/100 13 30,4 24,4 24 16 4 2 6,1 0,4
MVR1255 175 700* 178/330 60/100 13 30,4 24,4 24 16 4 2 6,1 0,4
MVR1261 175 700* 178/330 60/100 13 30,4 24,4 24 16 4 2 6,1 0,4
MVR1271 100 500* 178/330 60/100 13 30,4 24,4 24 16 4 2 7,5 0,4
MVR1278 100 500* 178/330 60/100 13 30,4 24,4 24 16 4 2 7,5 0,4
* Special order

General specification

Core Material:
MVRxxxT: Ferrite; MVRxxxxC: Powdered iron
Weight:
MVRT: 2.1 g; MVRC: 2.45 – 3.86 g

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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