AIRCOREINDUCTORS
AT426RAT
AT446RAT
200°C AirCoreInductors
■ Only 2 mm tall
■ High Q over a wide range of frequencies
■ Low DCR and excellent current handling capability
■ Special materials allow operation in ambient temperatures
as low as –60°C and up to 200°C.
■ Passes NASA low outgassing specifications
■ Tin-lead (Sn-Pb) terminations ensure the best possible
board adhesion
Inductance2
(nH)
Percent
tolerance
Q
SRFmin4
(GHz)
DCRmax5
(mOhm)
Imax
(A)
Wt
(mg)
Partnumber1
Turns
min3
AT426RAT5N5_SZ
AT426RAT9N0_SZ
AT426RAT13N_SZ
3
4
5
5.5
9.0
13.0
5,2
5,2
5,2
115
120
100
5.0
4.0
3.0
2.6
3.4
3.9
4.0
4.0
4.0
60
75
90
AT446RAT16N_SZ
AT446RAT18N_SZ
AT446RAT23N_SZ
AT446RAT27N_SZ
7
8
9
16.0
18.0
23.0
27.0
5,2
5,2
5,2
5,2
110
110
110
110
3.0
2.9
2.6
2.3
5.2
6.0
6.8
7.9
4.0
4.0
4.0
4.0
127
136
153
169
10
1. When ordering, specify tolerance and testing codes:
Terminations Tin-lead (63/37) over copper
Ambient temperature –60°C to +155°C with Imax current
Maximum part temperature +200°C (ambient + temp rise).
AT446RAT27NGSZ
Tolerance: G= 2% J = 5%
Testing:
Z = Unscreened
H = Group A screening per Coilcraft CP-SA-10001
T = Screening per MIL-STD-981
U = Screening per EEE-INST-002
F = Screening per ESCC 3201
Storage temperature Component: –60°C to +200°C.
Packaging: –55°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Temperature Coefficient of Inductance (TCL) +5 to +70 ppm/°C
All screening performed to the document’s latest revision
Custom screening also available
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Testing is performed using 155°C as max component
temperature
Enhanced crush-resistant packaging 1000 per 7″reel
Plastic tape: 2 mm wide, 0.23 mm thick, 8 mm pocket spacing,
2.2 mm pocket depth
2. Inductance measured at 250 MHz on an Agilent/HP 4286A or equiva-
lent with a Coilcraft SMD-A test fixture and correlation.
3. Q measured at 250 MHz on an Agilent/HP 4291A or equivalent with a
16193A test fixture or equivalent.
4. SRF measured on an Agilent/HP 8753ES or equivalent with a Coilcraft
CCF1268 test fixture.
5. DCR measured on a Keithley 580 Micro-Ohmmeter or equivalent.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document AT404-1 Revised 01/25/19