Datasheet
3D Models
AT350RAT, AT394RAT
200°C Air Core Inductors
AT350RAT, AT394RAT Series offer high Q over a wide range of frequencies.
- Special materials allow operation in ambient temperatures as low as –60°C and up to 200°C.
- Passes NASA low outgassing specifications.
- High Q over a wide range of frequencies.
Specifications
Electrical specifications at 25°C.
AT350RAT Series
| Part number 1 | Turns | Inductance (nH) 2 | Tolerance (%) |
Q min
@ 800 MHz 3 |
SRF min (GHz) 4 | DCR max (mΩ) 5 | Imax (A) |
|---|---|---|---|---|---|---|---|
| AT350RAT1N7KSZ | 2 | 1.65 | 10 | 100 | > 5.0 | 4.00 | 1.6 |
| AT350RAT2N6JSZ | 3 | 2.55 | 5 | 100 | > 5.0 | 5.00 | 1.6 |
| AT350RAT3N9_SZ | 4 | 3.85 | 5,2 | 100 | > 5.0 | 6.00 | 1.6 |
| AT350RAT5N4_SZ | 5 | 5.40 | 5,2 | 100 | > 5.0 | 8.00 | 1.6 |
AT394RAT Series
| Part number 1 | Turns | Inductance (nH) 2 | Tolerance (%) |
Q min
@ 800 MHz 3 |
SRF min (GHz) 4 | DCR max (mΩ) 5 | Imax (A) |
|---|---|---|---|---|---|---|---|
| AT394RAT5N6_SZ | 6 | 5.60 | 5,2 | 100 | > 5.0 | 9.00 | 1.6 |
| AT394RAT7N2_SZ | 7 | 7.15 | 5,2 | 100 | > 5.0 | 10.00 | 1.6 |
| AT394RAT8N8_SZ | 8 | 8.80 | 5,2 | 100 | > 5.0 | 12.00 | 1.6 |
| AT394RAT9N9_SZ | 9 | 9.85 | 5,2 | 100 | > 5.0 | 13.00 | 1.6 |
| AT394RAT13N_SZ | 10 | 12.55 | 5,2 | 100 | 4.6 | 14.00 | 1.6 |
Notes
- When ordering, specify tolerance and screening codes: e.g. AT394RAT13GSZ.
- Inductance measured at 800 MHz on an Agilent/HP 4286A or equivalent with a Coilcraft SMD-A test fixture and correlation.
- Q measured at 800 MHz on an Agilent/HP 4291A or equivalent with a 16193A test fixture or equivalent.
- SRF measured on an Agilent/HP 8753ES 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%
Screening:
- Z = Unscreened
- H = Group A screening per Coilcraft CP-SA-10001
- F = Screening per ESCC 3201
- 1 = EEE-INST-002 (Family 3) Level 1
- 2 = EEE-INST-002 (Family 3) Level 2
- 3 = EEE-INST-002 (Family 3) Level 3
- 4 = MIL-STD-981 (Family 50) Class B
- 5 = MIL-STD-981 (Family 50) Class S
- Screening performed to the document’s latest revision.
- Screening not available for parts with 2% tolerance.
- Testing is performed using 155°C as max component temperature.
- Lot qualification (Group B) available.
- Testing T and U have been replaced with more detailed codes 4, 5, and 1, 2, 3, respectively. Codes T and U can still be used, if necessary. Custom testing also available.
- Country of origin restrictions available; prefix option G.
Environmental
Ambient temperature range:
–60°C to +150°C with Imax current.
Storage temperature range:
Component: –60°C to +200°C.
Packaging: –55°C to +80°C.
Packaging: –55°C to +80°C.
Maximum part temperature:
+200°C (ambient + temp rise).
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
Performance curves
L vs Frequency – AT350RAT Series
Q vs Frequency – AT350RAT Series
L vs Frequency – AT394RAT Series
Q vs Frequency – AT394RAT Series
General specification
Weight:
AT350RAT: 6 mg – 18 mg; AT394RAT: 14 mg – 30 mg.
Packaging:
AT350RAT: 500 per 7″ reel Plastic tape: 8 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.5 mm pocket depth.
AT394RAT: 500 per 7″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.6 mm pocket depth.
AT394RAT: 500 per 7″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.6 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.