Datasheet
3D Models
MS439RAT, MS470RAT
High-Reliability Air Core Inductors
MS439RAT, MS470RAT Series utilize high temperature materials allowing operation in ambient temperatures up to 155°C.
- Small air core inductors feature high Q and tight tolerance.
- Tin-lead (Sn-Pb) terminations ensure the best possible board adhesion.
- Tin-lead (63/37) over copper terminations.
Specifications
Electrical specifications at 25°C.
MS439RAT Series
| Part number 1 | Turns | Inductance (nH) 2 | Tolerance (%) |
Q min
@ 150 MHz 3 |
SRF min (GHz) 4 | DCR max (mΩ) 5 | Imax (A) |
|---|---|---|---|---|---|---|---|
| MS439RAT13N_SZ | 4 | 12.5 | 5,2 | 137 | 3.3 | 3.4 | 4 |
| MS439RAT19N_SZ | 5 | 18.5 | 5,2 | 132 | 2.5 | 3.9 | 4 |
| MS439RAT2N5KSZ | 1 | 2.5 | 10 | 145 | > 5.0 | 1.1 | 4 |
| MS439RAT5N0_SZ | 2 | 5.0 | 5,2 | 140 | > 5.0 | 1.8 | 4 |
| MS439RAT8N0_SZ | 3 | 8.0 | 5,2 | 140 | 5.0 | 2.6 | 4 |
MS470RAT Series
| Part number 1 | Turns | Inductance (nH) 2 | Tolerance (%) |
Q min
@ 150 MHz 3 |
SRF min (GHz) 4 | DCR max (mΩ) 5 | Imax (A) |
|---|---|---|---|---|---|---|---|
| MS470RAT18N_SZ | 6 | 17.5 | 5,2 | 100 | 2.2 | 4.5 | 4 |
| MS470RAT22N_SZ | 7 | 22.0 | 5,2 | 102 | 2.1 | 5.2 | 4 |
| MS470RAT28N_SZ | 8 | 28.0 | 5,2 | 105 | 1.8 | 6.0 | 4 |
| MS470RAT36N_SZ | 9 | 35.5 | 5,2 | 112 | 1.5 | 6.8 | 4 |
| MS470RAT43N_SZ | 10 | 43.0 | 5,2 | 106 | 1.2 | 7.9 | 4 |
Notes
- When ordering, please specify tolerance and testing codes: e.g. MS470RAT43NGSZ.
- Inductance measured at 150 MHz on an Agilent/HP 4286A or equivalent with a Coilcraft SMD-A test fixture and correlation.
- Q measured at 150 MHz on an Agilent/HP 4291A or equivalent with a 16193A test fixture or equivalent.
- SRF measured on an Agilent/HP 8753ES network analyzer or equivalent with a Coilcraft CCF1268 test fixture. Parts with SRF >5 GHz are verified to >5 GHz in screening.
- DCR measured on a Keithley 580 Micro-Ohmmeter or equivalent.
Tolerance:
- G = 2%
- J = 5%
- K = 10%
Environmental
Ambient temperature range:
–55°C to +125°C with Imax current.
Storage temperature range:
Component: –55°C to +155°C.
Packaging: –40°C to +80°C.
Packaging: –40°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
Q vs Frequency
General specification
Weight:
48 – 188 mg
Packaging:
MS439RAT: 700/7″ reel Plastic tape: 12 mm wide, 0.32 mm thick, 8 mm pocket spacing, 3.3 mm pocket depth.
MS470RAT: 500/7″ reel; Plastic tape: 16 mm wide, 0.28 mm thick, 8 mm pocket spacing, 3.4 mm pocket depth.
MS470RAT: 500/7″ reel; Plastic tape: 16 mm wide, 0.28 mm thick, 8 mm pocket spacing, 3.4 mm pocket depth.
Temperature coefficient of inductance:
+5 to +70 ppm/°C.
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.