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ST235RAM301

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Specifications

Part number 1 Inductance (nH) 2
(Tolerance: ±5%)
SRF typ (MHz) 3 DCR max (mΩ) 4 Imax (mA)
ST235RAM301JAZ 300 860 475.000 250
Notes
  1. When ordering, please specify termination and screening codes: e.g. ST235RAM561JAZ.
  2. Inductance measured at 7.9 MHz using a Coilcraft SMD-F test fixture and Coilcraft-provided correlation pieces with an Agilent/HP 4286 impedance analyzer.
  3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD -D test fixture.
  4. DCR measured on Cambridge Technology micro-ohmmeter and a Coilcraft CCF858 test fixture.

Termination:

  • A = RoHS compliant gold over nickel over silver-palladium-glass frit.
  • C = Tin-lead (63/37) over silver-platinum-glass frit. (Special order, added cost)
  • F = Tin-silver-copper (95.5/4/0.5) over silver-platinum-glass frit. (Special order, added cost)
  • R = RoHS compliant matte tin over nickel over silver-platinum-glass frit. (Special order, added cost)
  • P = Tin-lead (63/37) over tin over nickel over silver-platinum-glass frit. (Special order, added cost)
  • Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit. (Special order, added cost)

Screening:

  • Z = Unscreened
  • H = Coilcraft CP-SA-10001 Group A
  • Screening performed to the document’s latest revision.
  • Lot qualification (Group B) available.
  • Custom testing also available.
  • Country of origin restrictions available; prefix option G.
Environmental
Ambient temperature range:
–40°C to +85°C with Imax current
Storage temperature range:
Component: –55°C to +100°C.
Packaging: –55°C to +80°C
Maximum part temperature:
+100°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):

Performance curves

Typical L vs Frequency

Typical Q vs Frequency

Physical characteristics

st235ram_dim.PNG
A max B max C max D E F G H  
0.044 0.026 0.026 0.020 0.009 0.017 0.018 0.026 inches
1,12 0,66 0,66 0,51 0,23 0,43 0,46 0,66 mm

Note: Dimensions are before optional solder application. For maximum overall dimensions including solder, add 0.0025 in / 0,064 mm to B and 0.006 in / 0,15 mm to A and C.

General specification

Core Material:
Ferrite
Packaging:
2000 per 7″ reel. Paper tape: 8 mm wide, 0.68 mm thick, 2 mm pocket spacing.
Temperature coefficient of inductance:
+25 to +155 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.