1812CHIP INDUCTORS
Outgassing Compliant Chip Inductors
AS450RAA
■
Higher SRF values than 1812 size parts with ferrite cores
■
5% tolerances for all values
■
19 inductance values from 1.0 to 33 µH
This robust version of Coilcraft’s standard 1812CS series
features high temperature materials that pass NASA low
outgassing specifications and allow operation in ambi-
ent temperatures up to 155°C. The leach-resistant base
metalization with tin-lead (Sn-Pb) terminations ensures
the best possible board adhesion.
Q min
3
59 @ 50 MHz
54 @ 50 MHz
57 @ 50 MHz
57 @ 50 MHz
52 @ 50 MHz
53 @ 50 MHz
53 @ 50 MHz
53 @ 50 MHz
32 @ 10 MHz
SRF min
4
(MHz)
260
230
210
190
170
160
145
130
115
DCR max
5
(Ohms)
1.1
1.2
1.6
2.0
2.2
3.2
3.8
5.0
5.4
Imax
(mA)
530
480
430
380
340
300
270
240
230
Part number
1
AS450RAA102JSZ
AS450RAA122JSZ
AS450RAA152_SZ
AS450RAA182JSZ
AS450RAA222JSZ
AS450RAA272JSZ
AS450RAA332JSZ
AS450RAA392_SZ
AS450RAA472JSZ
Inductance
2
(µH)
1.0 @ 7.9 MHz
1.2 @ 7.9 MHz
1.5 @ 7.9 MHz
1.8 @ 7.9 MHz
2.2 @ 7.9 MHz
2.7 @ 7.9 MHz
3.3 @ 7.9 MHz
3.9 @ 7.9 MHz
4.7 @ 7.9 MHz
Percent
tolerance
5
5
5,2
5
5
5
5
5,2
5
1. When ordering, please specify
tolerance
and
testing
codes:
AS450RAA333JSZ
Tolerance: G
= 2%
J
= 5%
Testing:
Z
= COTS
H
= Screening per Coilcraft CP-SA-10001
N
= Screening per Coilcraft CP-SA-10003
2. Inductance measured using a Coilcraft SMD-A fixture in an Agilent/
HP 4286 impedance analyzer or equivalent with Coilcraft-provided correla-
tion pieces.
3. Q measured at the same frequency as inductance using an Agilent/
HP 4291A with an Agilent/HP 16197A test fixture or equivalents.
4. SRF measured using an Agilent/HP 8753ES network analyzer or equiva-
lent and a Coilcraft SMD-D test fixture.
5. DCR measured on a micro-ohmmeter.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material
Ceramic
Terminations
Tin-lead (63/37) over silver-platinum-glass frit
Ambient temperature
–55°C to +125°C with
Imax
current, +125°C
to +155°C with derated current
Storage temperature
Component: –55°C to +155°C.
Tape and reel 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)
+25 to +155 ppm/°C
Moisture Sensitivity Level (MSL)
1 (unlimited floor life at <30°C /
85% relative humidity)
Enhanced crush-resistant packaging
600 per 7″ reel
Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing,
3.7 mm pocket depth
®
Specifications subject to change without notice.
Please check our website for latest information.
Document AS105-1
Revised 12/17/10
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2012
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com
1812 CHIP INDUCTORS
AS450RAA Series (1812)
Typical Q vs Frequency
80
70
60
50
Typical L vs Frequency
1.8 µH
3.9 µH
40
33.0 µH
30
Inductance (µH)
Q Factor
8.2 µH
22.0 µH
40
30
20
15.0 µH
15.0 µH
22.0 µH
20
10
33.0 µH
8.2 µH
3.9 µH
1.8 µH
10
0
1
10
100
0
Frequency (MHz)
1
10
Frequency (MHz)
100
1000
Current Derating
120
110
100
90
80
70
60
50
30
20
10
0
-40
-20
0
20
40
60
80
100
120
140 160
40
A
B
overall
F
G
F
E
terminal
C
I
J
I
H
Percent of rated
I
rms
D
Terminal wraparound:
approx 0.007/0,18 both ends
Suggested
Land Pattern
A max B max C max D ref
0.195 0.150 0.135 0.070
4,95
3,81
3,43
1,78
E
F
G
H
I
J
0.100 0.025 0.128 0.120 0.045 0.118
2,54 0,64 3,25 3,05 1,14 3,00
25°C
Note: Dimensions are before solder application. For maximum overall
dimensions including solder, add 0.0025 in / 0,064 mm to
B
and
0.006 in / 0,15 mm to
A
and
C.
Ambient temperature (°C)
®
Specifications subject to change without notice.
Please check our website for latest information.
Document AS105-2
Revised 12/17/10
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2012
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com
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