Datasheet
3D Model
Specifications
. Electrical specifications at 25°C.
| Part number 1 |
Inductance (nH)
2
(Tolerance: ±20%) |
DCR (mΩ) 3 | SRF min (MHz) 4 | Isat (mA) 5 | Irms (mA) 6 | ||||
|---|---|---|---|---|---|---|---|---|---|
| typ | max | 10% drop | 20% drop | 30% drop | 20°C rise | 40°C rise | |||
| ST251PHJ18NMRZ | 18 | 45 | 55 | 2800 | 2000 | 2500 | 2600 | 1400 | 2000 |
Notes
- When ordering, please specify termination and screening codes: e.g. ST251PHJ102MRZ.
- Inductance tested at 7.9 MHz, 0.1 Vrms using a Coilcraft SMD-F test fixture and Coilcraft-provided correlation pieces with an Agilent/HP 4286 impedance analyzer.
- DCR measured on a micro-ohmmeter.
- SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture.
- DC current at 25°C that causes the specified inductance drop from its value without current. Click for temperature derating information.
- Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information.
Termination:
- R = Matte tin over nickel over silver-platinum glass frit.
- P = Tin-lead (63/37) over tin over nickel over silverplatinum-glass frit.
- Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel over silver-platinum-glass frit.
Screening:
- Z = Unscreened
- Y = Unscreened (SLDC Option A)
- W = Unscreened (SLDC Option B)
- H = Group A screening per Coilcraft CP-SA-10001
- G = Coilcraft CP-SA-10001 Group A (SLDC Option A)
- D = Coilcraft CP-SA-10001 Group A (SLDC Option B)
Custom screening also available.
Environmental
Ambient temperature range:
–40°C to +125°C.
Storage temperature range:
Component: –55°C to +140°C.
Tape and reel packaging: –55°C to +80°C.
Tape and reel packaging: –55°C to +80°C.
Maximum part temperature:
+140°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
Performance curves
Typical L vs Current
Typical L vs Frequency
Physical characteristics
Dimensions are in inches⁄mm
Note: Dimensions are before optional solder applications. For maximum height dimension including solder, add 0.006 in / 0.152 mm.
General specification
Core Material:
Composite
Weight:
1.3 – 1.8 mg
Packaging:
2000 per 7″ reel Paper tape: 8 mm wide, 0.68 mm thick, 2 mm pocket spacing.
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.