Datasheet
3D Models
AT426RAT, AT446RAT
200°C Air Core Inductors
AT426RAT, AT446RAT Series feature low DCR and excellent current handling capability.
- Only 2 mm tall.
- 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.
Specifications
Electrical specifications at 25°C.
| Part number 1 | Turns | Inductance (nH) 2 | Tolerance (%) |
Q min
@ 250 MHz 3 |
SRF min (GHz) 4 | DCR max (mΩ) 5 | Imax (A) |
|---|---|---|---|---|---|---|---|
| AT426RAT5N5_SZ | 3 | 5.5 | 5,2 | 115 | 5.0 | 2.6 | 4.0 |
| AT426RAT9N0_SZ | 4 | 9.0 | 5,2 | 120 | 4.0 | 3.4 | 4.0 |
| AT426RAT13N_SZ | 5 | 13.0 | 5,2 | 100 | 3.0 | 3.9 | 4.0 |
| AT446RAT16N_SZ | 7 | 16.0 | 5,2 | 110 | 3.0 | 5.2 | 4.0 |
| AT446RAT18N_SZ | 8 | 18.0 | 5,2 | 110 | 2.9 | 6.0 | 4.0 |
| AT446RAT23N_SZ | 9 | 23.0 | 5,2 | 110 | 2.6 | 6.8 | 4.0 |
| AT446RAT27N_SZ | 10 | 27.0 | 5,2 | 110 | 2.3 | 7.9 | 4.0 |
Notes
- When ordering, specify tolerance and testing codes: e.g. AT446RAT27NGSZ.
- Inductance measured at 250 MHz on an Agilent/HP 4286A or equivalent with a Coilcraft SMD-A test fixture and correlation.
- Q measured at 250 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.
- DCR measured on a Keithley 580 Micro-Ohmmeter or equivalent.
Tolerance:
- G = 2%
- J = 5%
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 +155°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
Q vs Frequency
General specification
Weight:
60 – 169 mg
Packaging:
1000 per 7″reel Plastic tape: 2 mm wide, 0.23 mm thick, 8 mm pocket spacing, 2.2 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.