Datasheet
3D Model
ST485PKA Series
Power Inductor for Critical Applications
ST485PKA Series features excellent current handling for a part this size; low DCR.
- High energy storage and very low resistance.
- High inductance with tight tolerance.
- Gold over nickel over moly-manganese. Other terminations available at additional cost.
Specifications
Electrical specifications at 25°C.
| Part number 1 | Inductance (µH) 2 | Tolerance (%) | DCR max (Ω) | SRF typ (MHz) | Isat (A) 3 | Irms (A) 4 | |
|---|---|---|---|---|---|---|---|
| 20°C rise | 40°C rise | ||||||
| ST485PKA102MLZ | 1.0 | 20 | 0.05 | 130 | 2.9 | 1.90 | 2.70 |
| ST485PKA152MLZ | 1.5 | 20 | 0.06 | 115 | 2.6 | 1.90 | 2.65 |
| ST485PKA222MLZ | 2.2 | 20 | 0.07 | 100 | 2.3 | 1.85 | 2.55 |
| ST485PKA272MLZ | 2.7 | 20 | 0.08 | 75 | 2.1 | 1.80 | 2.45 |
| ST485PKA332MLZ | 3.3 | 20 | 0.08 | 70 | 2.0 | 1.60 | 2.20 |
| ST485PKA472MLZ | 4.7 | 20 | 0.09 | 50 | 1.5 | 1.40 | 1.90 |
| ST485PKA682MLZ | 6.8 | 20 | 0.13 | 45 | 1.2 | 1.20 | 1.60 |
| ST485PKA822MLZ | 8.2 | 20 | 0.16 | 40 | 1.2 | 1.10 | 1.55 |
| ST485PKA103MLZ | 10 | 20 | 0.16 | 35 | 1.1 | 1.10 | 1.50 |
| ST485PKA153MLZ | 15 | 20 | 0.23 | 30 | 0.90 | 0.90 | 1.25 |
| ST485PKA223_LZ | 22 | 20,10 | 0.37 | 20 | 0.70 | 0.75 | 0.95 |
| ST485PKA333_LZ | 33 | 20,10 | 0.51 | 15 | 0.58 | 0.60 | 0.80 |
| ST485PKA473_LZ | 47 | 20,10 | 0.64 | 14 | 0.50 | 0.52 | 0.70 |
| ST485PKA683_LZ | 68 | 20,10 | 0.86 | 11 | 0.40 | 0.44 | 0.60 |
| ST485PKA104_LZ | 100 | 20,10 | 1.27 | 9 | 0.31 | 0.37 | 0.50 |
| ST485PKA154_LZ | 150 | 20,10 | 2.00 | 6 | 0.27 | 0.28 | 0.39 |
| ST485PKA224_LZ | 220 | 20,10 | 3.11 | 6 | 0.22 | 0.23 | 0.31 |
| ST485PKA334_LZ | 330 | 20,10 | 3.80 | 5 | 0.18 | 0.22 | 0.30 |
| ST485PKA474_LZ | 470 | 20,10 | 5.06 | 4 | 0.16 | 0.20 | 0.26 |
| ST485PKA684_LZ | 680 | 20,10 | 9.20 | 3 | 0.14 | 0.14 | 0.19 |
| ST485PKA105_LZ | 1000 | 20,10 | 13.80 | 2 | 0.10 | 0.11 | 0.15 |
Notes
- Please specify tolerance, termination and screening codes: e.g. ST485PKA105MLZ.
- Tested at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4263B LCR meter or equivalent.
- DC current at 25°C that causes a 10% (typ) inductance drop from its value without current.
- Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings.
Tolerance:
- K = 10%
- M = 20%
Termination:
- L = Gold over nickel over moly-manganese.
- 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 CPSA-10001
- G= Coilcraft CP-SA-10001 Group A (SLDC Option A)
- D = Coilcraft CP-SA-10001 Group A (SLDC Option B)
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 Frequency
Typical L vs Current
General specification
Core Material:
Ferrite
Weight:
128– 164 mg
Packaging:
750/7″ reel Plastic tape: 12 mm wide, 0.28 mm thick, 4 mm pocket spacing, 3 mm pocket depth.
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.