3D Model Datasheet
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Electrical specifications at 25°C.

Part number 1 Lines Inductance (µH) 2
(Tolerance: ±30%)
Irms (mA) 3 DCR max (mΩ) 4 Isolation
Voltage (Vrms) 5
ST450FRC513NRZ 2 51 300 590 250
  1. When ordering, please specify termination code: e.g. ST450FRC104NRZ.
  2. Inductance is per winding, measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/ HP 4263B LCR meter and a Coilcraft CCF 1113 fixture.
  3. Current per winding that causes a 25°C rise from +125°C ambient.
  4. DCR is specified per winding, measured at on a Keithley 580 microohmmeter and a Coilcraft CCF 858 fixture.
  5. Winding to winding isolation (hipot) tested for one minute.


  • R = Matte tin over nickel over silver-platinum glass frit.
  • P = Tin-lead (63/37) over tin over nickel over silver-platinum-glass frit.
  • Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit.
Ambient temperature range:
–40°C to +125°C with Irms current.
Storage temperature range:
Component: –55°C to +150°C.
Tape and reel packaging: –55°C to +80°C.
Maximum part temperature:
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Typical Attenuation (Ref: 50 Ohms)

Typical Impedance vs Frequency

Physical characteristics



General specification

Core Material:
120 – 130 mg
600/7″ reel; 2200/13″ reel; Plastic tape: 12 mm wide, 0.30 mm thick, 8 mm pocket spacing, 3.05 mm pocket depth.


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. See Doc787_PCB_Washing.pdf.