Datasheet
3D Model
MS338PWA Series
High Reliability Power Inductors
MS338PWA Series features soft saturation which makes them ideal for VRM/VRD applications.
- High temperature materials allow operation in ambient temperatures up to 155°C.
- Very low DCR and excellent current handling.
- Tin-lead (Sn-Pb) termination for the best possible board adhesion.
- Special construction allows it to pass vibration testing to 30 G and shock testing to 500 G.
- Tin-lead (63/37) over tin over nickel over silver terminations.
Specifications
Electrical specifications at 25°C.
| Part number 1 |
Inductance (µH)
2
(Tolerance: ±20%) |
DCR (Ω) 3 | SRF (MHz) 4 | Isat (A) 5 | Irms (A) 6 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| typ | max | min | typ | 10% drop | 20% drop | 30% drop | 20°C rise | 40°C rise | ||
| MS338PWA201MSZ | 0.20 | 0.024 | 0.027 | 286 | 408 | 2.8 | 3.5 | 3.8 | 2.2 | 2.8 |
| MS338PWA331MSZ | 0.33 | 0.031 | 0.035 | 175 | 250 | 1.9 | 2.8 | 3.1 | 1.9 | 2.6 |
| MS338PWA501MSZ | 0.50 | 0.040 | 0.045 | 153 | 218 | 1.8 | 2.4 | 2.6 | 1.7 | 2.3 |
| MS338PWA681MSZ | 0.68 | 0.057 | 0.063 | 106 | 152 | 1.6 | 2.0 | 2.2 | 1.5 | 2.1 |
| MS338PWA821MSZ | 0.82 | 0.068 | 0.075 | 93 | 132 | 1.3 | 1.7 | 1.9 | 1.3 | 1.7 |
| MS338PWA102MSZ | 1.0 | 0.081 | 0.089 | 82 | 117 | 1.2 | 1.6 | 1.8 | 1.1 | 1.6 |
| MS338PWA152MSZ | 1.5 | 0.105 | 0.116 | 56 | 80 | 0.95 | 1.3 | 1.5 | 1.0 | 1.4 |
| MS338PWA222MSZ | 2.2 | 0.156 | 0.173 | 53 | 75 | 0.94 | 1.2 | 1.4 | 0.96 | 1.3 |
| MS338PWA332MSZ | 3.3 | 0.207 | 0.228 | 39 | 55 | 0.70 | 0.93 | 1.1 | 0.79 | 1.1 |
| MS338PWA472MSZ | 4.7 | 0.336 | 0.370 | 28 | 40 | 0.58 | 0.75 | 0.85 | 0.74 | 1.0 |
| MS338PWA682MSZ | 6.8 | 0.421 | 0.463 | 23 | 33 | 0.45 | 0.62 | 0.73 | 0.64 | 0.87 |
| MS338PWA822MSZ | 8.2 | 0.457 | 0.503 | 21 | 30 | 0.44 | 0.60 | 0.67 | 0.55 | 0.75 |
| MS338PWA103MSZ | 10 | 0.555 | 0.611 | 20 | 28 | 0.39 | 0.53 | 0.61 | 0.49 | 0.66 |
Notes
- When ordering, please specify testing code: e.g. MS338PWA224MSZ.
- Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc.
- DCR measured on a micro-ohmmeter.
- SRF measured using Agilent/HP 4395A or equivalent.
- DC current at which the inductance drops the specified amount from its value without current.
- Current that causes the specified temperature rise from 25°C ambient.
Testing:
- 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)
Environmental
Ambient temperature range:
–55°C to +105°C with Irms current.
Storage temperature range:
Component: –55°C to +155°C.
Packaging: –55°C to +80°C.
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
Typical L vs Frequency
Typical L vs Current
General specification
Weight:
22 mg
Packaging:
2000/7′′ reel Plastic tape: 8 mm wide, 0.23 mm thick, 4 mm pocket spacing, 1.19 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.