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MVR Series
VRM/VRD Power Inductors

  • Ideal for low-voltage, high-current DC-DC converters and VRM/VRD controllers
  • Best current handling of any inductor its size
  • Low profile with excellent performance-to-height ratio.
  • Low core loss and soft saturation versions
  • MVR1251T are rated AEC-Q200 Grade 1 (−40°C to +125°C)
  • For soft saturation version, inductance is unaffected by part temperature up to +125°C, with no thermal aging issues.
  • COTS Plus tin-silver-copper and tin-lead terminations available
  • RoHS compliant. 260°C compatible. Tin-silver over copper terminations.
  • Need parts for space, military or other critical applications? See Coilcraft CPS parts.

SPECIFICATIONS


Part number1
Click to get parts
Inductance2
±20% (µH)
DCR ±8%3
(mOhms)
SRF typ4
(MHz)
Isat5
(A)
Irms6
(A)
Height max
(inch / mm)
Low core loss version            
MVR1251T-251ML_ 0.25 0.925 160 35 25 0.200 / 5.1
MVR1251T-361ML_ 0.36 0.925 140 24 24 0.200 / 5.1
MVR1251T-561ML_ 0.56 0.925 110 13 25 0.200 / 5.1
Soft saturation version            
MVR1247C-361ML_ 0.36 0.925 120 36 24 0.185 / 4.7
MVR1255C-651ML_ 0.65 1.50 115 24 19 0.217 / 5.5
MVR1261C-112ML_ 1.10 1.95 95 20 20 0.240 / 6.1
MVR1271C-162ML_ 1.65 2.53 55 17 20 0.280 / 7.1
MVR1278C-232ML_ 2.30 3.08 50 16 17 0.307 / 7.8
1 When ordering, please specify termination and packaging codes: e.g. MVR1278C-232MLC
  Termination: L = RoHS compliant tin-silver (96.5/3.5) over copper.
Special order, added cost: T = RoHS tin-silver-copper (95.5/4/0.5) or
S
= non-RoHS tin-lead (63/37).
Packaging:

 

C = 7" reel, machine-ready reel
EIA-481 embossed plastic tape. Parts per reel data

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. Parts per reel data

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.
7 Ambient temperature range: −40°C to +85°C with Irms current.
8 Storage temperature range: Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C
9 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.
10 Maximum part temperature: +125°C (Ambient + temperature rise)
11 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.

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Updated: August 29, 2017