Datasheet
3D Model
ML590PND Series
High-Reliability Coupled Inductors
The ML590PND series of shielded coupled inductors was designed specifically for high temperature applications – up to 155°C. The excellent coupling coefficient (k ≥ 0.98) makes it ideal for use in SEPIC applications. In SEPIC topologies, the required inductance for each winding in a coupled inductor is half the value needed for two separate inductors, allowing selection of a part with lower DCR and higher current handling.
These inductors provide high inductance, high efficiency, excellent current handling and 500 V isolation in a very rugged part. They are well suited for use as VRM inductors in high-current DC-DC and VRM/VRD controllers.
They can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer.
They can also be used as two single inductors connected in series or parallel, as a common mode choke or as a 1 : 1 transformer.
Specifications
Electrical specifications at 25°C.
For Flyback Applications
| Part number 1 | Inductance (µH) 2 | Tolerance (%) | DCR max (Ω) 3 |
Isolation Voltage (V) 4 |
Leakage Inductance (µH) |
|---|---|---|---|---|---|
| ML590PND332MLZ | 3.3 | 20 | 0.020 | 500 | 0.2 |
| ML590PND472MLZ | 4.7 | 20 | 0.036 | 500 | 0.2 |
| ML590PND562MLZ | 5.6 | 20 | 0.040 | 500 | 0.2 |
| ML590PND682MLZ | 6.8 | 20 | 0.048 | 500 | 0.24 |
| ML590PND822MLZ | 8.2 | 20 | 0.052 | 500 | 0.25 |
| ML590PND103MLZ | 10 | 20 | 0.060 | 500 | 0.26 |
| ML590PND123MLZ | 12 | 20 | 0.074 | 500 | 0.28 |
| ML590PND153MLZ | 15 | 20 | 0.085 | 500 | 0.32 |
| ML590PND183MLZ | 18 | 20 | 0.097 | 500 | 0.4 |
| ML590PND223MLZ | 22 | 20 | 0.12 | 500 | 0.67 |
| ML590PND273MLZ | 27 | 20 | 0.12 | 500 | 0.5 |
| ML590PND333MLZ | 33 | 20 | 0.13 | 500 | 0.65 |
| ML590PND393MLZ | 39 | 20 | 0.14 | 500 | 1.09 |
| ML590PND473MLZ | 47 | 20 | 0.17 | 500 | 0.8 |
| ML590PND563MLZ | 56 | 20 | 0.20 | 500 | 0.75 |
| ML590PND683MLZ | 68 | 20 | 0.22 | 500 | 0.57 |
| ML590PND823MLZ | 82 | 20 | 0.27 | 500 | 1.52 |
| ML590PND104MLZ | 100 | 20 | 0.32 | 500 | 1.41 |
| ML590PND124KLZ | 120 | 10 | 0.42 | 500 | 1.34 |
| ML590PND154KLZ | 150 | 10 | 0.48 | 500 | 1.52 |
| ML590PND184KLZ | 180 | 10 | 0.54 | 500 | 1.8 |
| ML590PND224KLZ | 220 | 10 | 0.69 | 500 | 1.6 |
| ML590PND274KLZ | 270 | 10 | 0.81 | 500 | 2.23 |
| ML590PND334KLZ | 330 | 10 | 1.1 | 500 | 2.39 |
| ML590PND394KLZ | 390 | 10 | 1.2 | 500 | 3.72 |
| ML590PND474KLZ | 470 | 10 | 1.6 | 500 | 2.89 |
| ML590PND564KLZ | 560 | 10 | 1.8 | 500 | 2.55 |
| ML590PND684KLZ | 680 | 10 | 2.1 | 500 | 5.76 |
| ML590PND824KLZ | 820 | 10 | 2.7 | 500 | 2.86 |
| ML590PND105KLZ | 1000 | 10 | 3.1 | 500 | 4.32 |
For SEPIC Applications
| Part number 1 | Inductance (µH) 2 | Tolerance (%) | DCR max (Ω) 3 | SRF (MHz) 5 | Coupling coefficient |
Leakage Inductance (µH) |
Isat (A) 6 | Irms (A) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Typ | 10% drop | 20% drop | 30% drop | both windings 7 | one winding 8 | ||||||
| ML590PND332MLZ | 3.3 | 20 | 0.020 | 41.0 | 52.0 | 0.98 | 0.20 | 11.5 | 12.9 | 14.1 | 3.60 | 6.10 |
| ML590PND472MLZ | 4.7 | 20 | 0.036 | 30.0 | 38.0 | 0.98 | 0.20 | 9.0 | 10.2 | 11.1 | 3.16 | 4.47 |
| ML590PND562MLZ | 5.6 | 20 | 0.040 | 24.0 | 30.0 | 0.98 | 0.20 | 8.0 | 9.1 | 9.8 | 3.00 | 4.24 |
| ML590PND682MLZ | 6.8 | 20 | 0.048 | 22.0 | 27.0 | 0.98 | 0.24 | 7.0 | 8.0 | 8.6 | 2.75 | 3.88 |
| ML590PND822MLZ | 8.2 | 20 | 0.052 | 21.0 | 26.0 | 0.98 | 0.25 | 6.4 | 7.4 | 8.0 | 2.63 | 3.72 |
| ML590PND103MLZ | 10 | 20 | 0.060 | 18.0 | 22.0 | 0.99 | 0.26 | 5.4 | 6.3 | 6.9 | 2.45 | 3.46 |
| ML590PND123MLZ | 12 | 20 | 0.074 | 16.0 | 20.0 | 0.99 | 0.28 | 5.3 | 6.2 | 6.7 | 2.21 | 3.12 |
| ML590PND153MLZ | 15 | 20 | 0.085 | 14.4 | 18.0 | 0.99 | 0.32 | 4.6 | 5.3 | 5.8 | 2.06 | 2.92 |
| ML590PND183MLZ | 18 | 20 | 0.097 | 13.0 | 16.0 | 0.99 | 0.40 | 4.5 | 5.2 | 5.7 | 1.93 | 2.73 |
| ML590PND223MLZ | 22 | 20 | 0.12 | 12.0 | 15.0 | 0.98 | 0.67 | 4.0 | 4.6 | 5.0 | 1.76 | 2.49 |
| ML590PND273MLZ | 27 | 20 | 0.12 | 10.0 | 13.0 | 0.99 | 0.50 | 3.6 | 4.1 | 4.5 | 1.70 | 2.41 |
| ML590PND333MLZ | 33 | 20 | 0.13 | 10.0 | 12.4 | 0.99 | 0.65 | 3.3 | 3.8 | 4.1 | 1.64 | 2.32 |
| ML590PND393MLZ | 39 | 20 | 0.14 | 9.6 | 12.0 | 0.99 | 1.1 | 3.0 | 3.5 | 3.8 | 1.59 | 2.25 |
| ML590PND473MLZ | 47 | 20 | 0.17 | 9.3 | 11.6 | 0.99 | 0.80 | 2.7 | 3.1 | 3.4 | 1.44 | 2.03 |
| ML590PND563MLZ | 56 | 20 | 0.20 | 8.4 | 10.5 | 0.99 | 0.75 | 2.5 | 2.9 | 3.1 | 1.35 | 1.91 |
| ML590PND683MLZ | 68 | 20 | 0.22 | 8.0 | 10.0 | >0.99 | 0.57 | 2.3 | 2.7 | 2.9 | 1.29 | 1.83 |
| ML590PND823MLZ | 82 | 20 | 0.27 | 6.9 | 8.6 | 0.99 | 1.5 | 2.1 | 2.4 | 2.6 | 1.15 | 1.62 |
| ML590PND104MLZ | 100 | 20 | 0.32 | 6.2 | 7.8 | 0.99 | 1.4 | 1.9 | 2.2 | 2.4 | 1.06 | 1.50 |
| ML590PND124KLZ | 120 | 10 | 0.42 | 5.5 | 6.8 | 0.99 | 1.3 | 1.6 | 1.8 | 2.0 | 0.93 | 1.31 |
| ML590PND154KLZ | 150 | 10 | 0.48 | 5.1 | 6.4 | 0.99 | 1.5 | 1.5 | 1.8 | 1.9 | 0.87 | 1.23 |
| ML590PND184KLZ | 180 | 10 | 0.54 | 4.9 | 6.1 | 0.99 | 1.8 | 1.4 | 1.6 | 1.8 | 0.82 | 1.16 |
| ML590PND224KLZ | 220 | 10 | 0.69 | 4.4 | 5.5 | >0.99 | 1.6 | 1.3 | 1.5 | 1.6 | 0.72 | 1.02 |
| ML590PND274KLZ | 270 | 10 | 0.81 | 3.4 | 4.3 | >0.99 | 2.2 | 1.1 | 1.3 | 1.4 | 0.67 | 0.95 |
| ML590PND334KLZ | 330 | 10 | 1.1 | 3.2 | 4.0 | >0.99 | 2.4 | 1.0 | 1.2 | 1.3 | 0.57 | 0.81 |
| ML590PND394KLZ | 390 | 10 | 1.2 | 2.9 | 3.6 | >0.99 | 3.7 | 0.95 | 1.1 | 1.2 | 0.55 | 0.77 |
| ML590PND474KLZ | 470 | 10 | 1.6 | 2.4 | 3.0 | >0.99 | 2.9 | 0.90 | 0.99 | 1.1 | 0.48 | 0.67 |
| ML590PND564KLZ | 560 | 10 | 1.8 | 2.2 | 2.8 | >0.99 | 2.6 | 0.80 | 0.91 | 0.95 | 0.45 | 0.63 |
| ML590PND684KLZ | 680 | 10 | 2.1 | 2.1 | 2.6 | >0.99 | 5.8 | 0.70 | 0.80 | 0.87 | 0.42 | 0.59 |
| ML590PND824KLZ | 820 | 10 | 2.7 | 2.0 | 2.5 | >0.99 | 2.9 | 0.64 | 0.73 | 0.80 | 0.37 | 0.52 |
| ML590PND105KLZ | 1000 | 10 | 3.1 | 1.9 | 2.4 | >0.99 | 4.3 | 0.59 | 0.67 | 0.73 | 0.34 | 0.49 |
Notes
- When ordering, please specify screening code: e.g. ML590PND105KLZ.
- 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.
- Winding-to-winding and winding-to-core isolation 500 Vrms.
- SRF measured using an Agilent/HP 4191A or equivalent. When leads are connected in parallel, SRF is the same value.
- DC current, at which the inductance drops the specified amount 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.
- Maximum current when applied to one winding that causes a 40°C temperature rise from 25°C ambient.
Refer to Doc 639 “Selecting Coupled Inductors for SEPIC Applications.”
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)
- Screening performed to the document’s latest revision.
- Custom testing also available.
- Country of origin restrictions available; prefix option G.
Environmental
Ambient temperature range:
–55°C to +105°C with Irms current
Storage temperature range:
Component: –55°C to +155°C
Tape and reel packaging: –55°C to +80°C
Tape and reel packaging: –55°C to +80°C
Maximum part temperature:
+155°C (ambient + temp rise)
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
Performance curves
L vs Frequency
L vs Current
Schematics
General specification
Core Material:
Ferrite
Weight:
2.8 – 3.2 g
Packaging:
500/13″ reel; Plastic tape: 24 mm wide, 0.35 mm thick, 16 mm pocket spacing, 6.6 mm pocket depth
Winding to Winding Isolation:
500 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.