3D Model
Datasheet
Specifications
Electrical specifications at 25°C.
For Flyback Applications
| Part number 1 |
Inductance (µH)
2
(Tolerance: ±20%) |
DCR max (Ω) 3 |
Isolation Voltage (V) |
Leakage Inductance (µH) 5 |
|---|---|---|---|---|
| ST526PND394MLZ | 390 | 3.1 | 200 | 4.7 |
For SEPIC Applications
| Part number 1 |
Inductance (µH)
2
(Tolerance: ±20%) |
DCR max (Ω) 3 | SRF Typ (MHz) 4 | Coupling coefficient |
Leakage Inductance (µH) 5 |
Isat (A) 6 | Irms (A) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| 10% drop | 20% drop | 30% drop | both windings 7 | one winding 8 | ||||||
| ST526PND394MLZ | 390 | 3.1 | 2.8 | 0.99 | 4.7 | 0.45 | 0.47 | 0.50 | 0.23 | 0.32 |
Notes
- When ordering, please specify termination and screening codes: e.g. ST526PND105MLZ.
- Inductance shown for each winding, measured at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR meter or equivalent. When leads are connected in parallel, inductance is the same value. When leads are connected in series, inductance is four times the value.
- DCR is for each winding. When leads are connected in parallel, DCR is half the value. When leads are connected in series, DCR is twice the value.
- SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
- Leakage inductance is for L1 and is measured with L2 shorted.
- DC current at 25°C that causes the specified inductance drop from its value without current It is the sum of the current flowing in both windings.
- Equal current when applied to each winding simultaneously that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
- Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Termination:
- L = Matte tin over nickel over phos bronze.
- T = Tin-silver-copper (95.5/4/0.5). (Special order, added cost)
- S = Tin-lead (63/37). (Special order, added cost)
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 +85°C with Irms current.
Storage temperature range:
Component: –55°C to +125°C.
Tape and reel packaging: –55°C to +80°C.
Tape and reel packaging: –55°C to +80°C.
Maximum part temperature:
+125°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
Performance curves
Typical L vs Current
Typical L vs Frequency
Schematics
General specification
Core Material:
Ferrite
Weight:
0.76 – 0.87g
Winding to Winding Isolation:
200 Vrms
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.