1812 CHIP INDUCTORS
High-Reliability Chip Inductors
ML450RAA
• Higher SRF values than 1812 size parts with ferrite cores
• 2% and 1% tolerances for all values
• 9 inductance values from 1.0 to 4.7 µH
Part
number
1
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
5,2,1
5,2,1
5,2,1
5,2,1
5,2,1
5,2,1
5,2,1
5,2,1
5,2,1
This robust version of Coilcraft’s standard 1812CS series
features high temperature materials that allow operation
in ambient temperatures up to 155°C.
Q
min
3
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
ML450RAA102JLZ
ML450RAA122JLZ
ML450RAA152_LZ
ML450RAA182JLZ
ML450RAA222JLZ
ML450RAA272JLZ
ML450RAA332JLZ
ML450RAA392_LZ
ML450RAA472JLZ
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
Core material
Ceramic
1. When ordering, please specify
tolerance
and
testing
codes:
ML450RAA333JLZ
Tolerance: F
= 1%
G
= 2%
J
= 5%
Testing:
Z
= COTS
H
= Group A screening per Coilcraft CP-SA-10001
N
= Group A 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 16197 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 Keithley 580 micro-ohmmeter or equivalent and a
Coilcraft CCF859 test fixture.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Terminations
Silver-palladium-platinum-glass frit
Weight:
109 – 128 mg
Ambient temperature
–55°C to +140°C with
Imax
current, +140°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
®
Document ML105-1 Revised 06/11/13
1102 Silver Lake Road
Cary, IL 60013
Phone 800-981-0363
Fax 847-639-1508
Email cps@coilcraft.com
www.coilcraft-cps.com
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specifications subject to change without notice.
Please check our web site for latest information.
© Coilcraft, Inc. 2013
1812 CHIP INDUCTORS
ML450RAA Series (1812)
Typical Q vs Frequency
100
90
80
Typical L vs Frequency
6.0
5.5
5.0
4.5
4.7 µH
Inductance (µH)
70
Q Factor
60
50
40
30
20
10
0
1
10
4.7 µH
1.0 µH
1.5 µH
2.2 µH
3.3 µH
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1
10
2.2 µH
1.5 µH
1.0 µH
3.3 µH
100
1000
100
1000
Frequency (MHz)
Frequency (MHz)
Current Derating
120
110
100
A
B
overall
F
G
F
E
terminal
C
I
J
I
H
Percent of rated
I
rms
90
80
70
60
50
30
20
10
0
-40
-20
0
20
40
60
80
100
120
140 160
40
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
Ambient temperature (°C)
25°C
®
Document ML105-2 Revised 06/11/13
1102 Silver Lake Road
Cary, IL 60013
Phone 800-981-0363
Fax 847-639-1508
Email cps@coilcraft.com
www.coilcraft-cps.com
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specifications subject to change without notice.
Please check our web site for latest information.
© Coilcraft, Inc. 2013
