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Cx Family Common Mode Chokes
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. The MVR1251T is also AEC Q200 Grade 1 qualified ((−40°C to +125°C).

  • Very low DCR and high current handling
  • Low loss and soft saturation versions
  • Low profile with excellent performance-to-height ratio
  • Designed for high-current DC-DC and VRM/VRD controllers
  • Magnetically shielded / No thermal aging
  • AEC Q200 Grade 1 (−40°C to +125°C) − MVR1251T only
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. Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
  • D = 13" reel, machine-ready reel
    EIA-481 embossed plastic tape. Factory order only, not stocked. 
  • 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.
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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