Datasheet 3D Model

ST598PTA Series

Power Inductors for Critical Applications

ST598PTA Series features exceptionally high current carrying capability (up to 43 Amps) and very low DC resistance
  • Magnetic shielding allows high density mounting; flat wire winding keeps the overall height to just 6 mm.
  • Terminals 1 and 2: Tin-silver over tin over nickel over phos bronze; Terminal 3: Matte tin over nickel over phos bronze. Other terminations available at additional cost.

Looking for the commercial version of this part? See Coilcraft SER1360 Series
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±10%)
DCR (mΩ) 3 SRF (MHz) 4 Isat (A) 5 Irms (A) 6
typ max min typ 10% drop 20% drop 30% drop 20°C rise 40°C rise
ST598PTA331KLZ 0.33 0.77 0.85 140 200 36.0 41.0 43.0 13.0 16.9
ST598PTA651KLZ 0.65 0.77 0.85 112 160 23.0 27.0 28.0 13.0 16.9
ST598PTA102KLZ 1.0 2.4 2.6 52.5 75.0 32.0 33.0 33.5 9.5 13.0
ST598PTA182KLZ 1.8 2.4 2.6 35.0 50.0 17.0 19.0 20.0 9.5 13.0
ST598PTA272KLZ 2.7 2.4 2.6 29.4 42.0 12.0 13.0 14.0 9.5 13.0
ST598PTA402KLZ 4.0 5.5 6.1 23.8 34.0 11.0 12.0 13.0 7.1 9.4
ST598PTA472KLZ 4.7 5.5 6.1 22.4 32.0 9.5 11.0 12.0 7.1 9.4
ST598PTA602KLZ 6.0 5.5 6.1 19.6 28.0 8.0 9.0 9.5 7.1 9.4
ST598PTA802KLZ 8.0 9.8 10.8 18.2 26.0 7.5 8.5 9.0 5.5 7.6
ST598PTA103KLZ 10 9.8 10.8 16.8 24.0 6.2 7.0 7.5 4.4 7.2
ST598PTA223KLZ 22 9.8 10.8 9.1 13.0 2.4 3.0 3.3 4.4 7.2
Notes
  1. When ordering, please specify termination and screening codes: e.g. ST598PTA223KLZ.
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A or equivalent.
  3. DCR measured on a micro-ohmmeter.
  4. SRF measured using an Agilent/HP 8753D network analyzer.
  5. DC current at 25°C that causes the specified inductance drop from its value without current.
  6. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.

Termination:

  • L =Terminals 1 and 2: Tin-silver over tin over nickel over phos bronze; Terminal 3: Matte tin over nickel over phos bronze.
  • T = All terminals: copper (95.5/4/0.5) over tin over nickel over phos bronze. (Special order, added cost)
  • S = All terminals: Tin-lead (63/37) over tin over nickel over phos bronze. (Special order, added cost)

Screening:

  • Z = Unscreened
  • 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)
All screening performed to the document’s latest revision.
Custom screening also available.
Environmental
Ambient temperature range:
–40°C to +85°C with Irms current.
Storage temperature range:
Component: –55°C to +125°C.
Tape and reel packaging: –40°C to +80°C.
Maximum part temperature:
+125°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

L vs Current

L vs Frequency

Temperature Rise vs Current

Physical characteristics

st598ptad.gif

Dimensions are in  inchesmm

General specification

Core Material:
Ferrite
Weight:
2.3 – 3.2 g
Packaging:
500 per 13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick, 16 mm pocket spacing, 6.6 mm pocket depth.

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.