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Datasheet 3D Models

ML561RAU, ML615RAU, ML643RAU

High-Reliability Air Core Inductors

ML561RAU, ML615RAU, ML643RAU Series offer excellent Q factors – up to 180 at 100 MHz!
  • Current handling as high as 57 Amps.
  • Inductance values from 22 to 257 nH.
  • Tin-silver over copper terminations.

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Specifications

Electrical specifications at 25°C.

ML615RAU Series

Part number 1 Inductance (nH) 2
(Tolerance: ±20%) 		Q min 3 SRF min (MHz) 4 DCR (mΩ) Irms (A) 5
typ max 20°C rise 40°C rise
ML615RAU22NMLZ 22 150 @ 100 MHz 640 0.48 0.55 40.5 57.0
ML615RAU42NMLZ 42 160 @ 50.0 MHz 440 0.70 0.77 38.0 52.0
ML615RAU66NMLZ 66 160 @ 50.0 MHz 400 0.90 0.99 35.0 48.0
ML615RAU90NMLZ 90 140 @ 50.0 MHz 320 1.10 1.21 33.0 45.0
ML615RAU111MLZ 117 140 @ 50.0 MHz 320 1.30 1.43 32.0 44.0

ML561RAU Series

Part number 1 Inductance (nH) 2
(Tolerance: ±20%) 		Q min 3 SRF min (MHz) 4 DCR (mΩ) Irms (A) 5
typ max 20°C rise 40°C rise
ML561RAU23NMLZ 23.5 70 @ 100 MHz 720 1.05 1.20 18.0 26.0
ML561RAU46NMLZ 46.5 110 @ 100 MHz 400 1.50 1.62 17.9 25.5
ML561RAU79NMLZ 79 110 @ 50.0 MHz 400 1.95 2.11 17.8 25.0
ML561RAU111MLZ 111 120 @ 50.0 MHz 360 2.53 2.73 15.7 22.0
ML561RAU141MLZ 146 110 @ 50.0 MHz 350 3.08 3.33 14.1 19.3

ML643RAU Series

Part number 1 Inductance (nH) 2
(Tolerance: ±20%) 		Q min 3 SRF min (MHz) 4 DCR (mΩ) Irms (A) 5
typ max 20°C rise 40°C rise
ML643RAU33NMLZ 33 180 @ 100 MHz 790 0.63 0.74 32.5 43.0
ML643RAU66NMLZ 66 150 @ 50.0 MHz 370 0.90 1.00 31.5 42.5
ML643RAU111MLZ 108 150 @ 50.0 MHz 300 1.20 1.34 31.0 42.0
ML643RAU151MLZ 155 150 @ 50.0 MHz 280 1.44 1.60 29.4 39.7
ML643RAU201MLZ 202 150 @ 50.0 MHz 255 1.70 1.82 26.3 35.8
ML643RAU251MLZ 257 150 @ 50.0 MHz 245 1.94 2.15 24.9 34.5
Notes
  1. When ordering, please specify screening code: e.g. ML643RAU251MLZ.
  2. Inductance measured at 1 MHz, 0.1 Vrms, 0 A using an Agilent/HP HP4291A impedance analyzer with an Agilent/HP 16193A test fixture or equivalents.
  3. Q measured at specified frequency using an Agilent/HP 4291A impedance analyzer or equivalent and an Agilent 16092A (or equivalent) test fixture.
  4. SRF measured using an Agilent/HP 8753 network analyzer or equivalent and a Coilcraft CCF1199 test fixture.
  5. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.

Screening:

  • Z = Unscreened
  • Y = Unscreened (SLDC Option A)
  • W = Unscreened (SLDC Option B)
  • H = Coilcraft CP-SA-10001 Group A
  • G= Coilcraft CP-SA-10001 Group A (SLDC Option A)
  • D = Coilcraft CP-SA-10001 Group A (SLDC Option B)
  • F = ESCC3201 (F4 operational life performed at 90°C)
  • 1 = EEE-INST-002 (Family 3) Level 1
  • 2 = EEE-INST-002 (Family 3) Level 2
  • 3 = EEE-INST-002 (Family 3) Level 3
  • 4 = MIL-STD-981 (Family 50) Class B
  • 5 = MIL-STD-981 (Family 50) Class S
  • Screening performed to the document’s latest revision.
  • Lot qualification (Group B) available.
  • Testing T and U have been replaced with more detailed codes 4, 5, and 1, 2, 3, respectively. Codes T and U can still be used, if necessary. Custom testing also available.
Environmental
Ambient temperature range:
–55°C to +125°C with Irms current.
Storage temperature range:
Component: –55°C to +155°C.
Packaging: –55°C to +80°C.
Maximum part temperature:
+155°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
See FIT/MTBF Calculations

Performance curves

L vs Frequency - ML561RAU Series

L vs Frequency - ML561RAU Series

Q vs Frequency - ML561RAU Series

Q vs Frequency - ML561RAU Series

L vs Frequency - ML615RAU Series

L vs Frequency - ML615RAU Series

Q vs Frequency - ML615RAU Series

Q vs Frequency - ML615RAU Series

L vs Frequency - ML643RAU Series

L vs Frequency - ML643RAU Series

Q vs Frequency - ML643RAU Series

Q vs Frequency - ML643RAU Series

Physical characteristics

ml561-(1).png

General specification

Weight:
0.49 – 5.00 g
Packaging:
ML561RAU23N 1000/13″ reel
ML561RAU46N 900/13″ reel
ML561RAU79N 800/13″ reel
Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing.

ML561RAU111 700/13″ reel
ML561RAU141 600/13″ reel
Plastic tape: 24 mm wide, 0.40 mm thick, 16 mm pocket spacing.

ML615RAU22N 450/13″ reel
ML615RAU42N 400/13″ reel
ML615RAU66N 350/13″ reel
ML615RAU90N 300/13″ reel
ML615RAU111 250/13″ reel
Plastic tape: 24 mm wide, 0.50 mm thick, 20 mm pocket spacing.

ML643RAU33N 500/13″ reel
ML643RAU66N 450/13″ reel
ML643RAU111 400/13″ reel
ML643RAU151 350/13″ reel
ML643RAU201 300/13″ reel
ML643RAU251 250/13″ reel
Plastic tape: 44 mm wide, 0.50 mm thick, 20 mm pocket spacing.
Temperature coefficient of inductance:
+5 to +70 ppm/°C.

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.