1812 CHIP INDUCTORS
High-Reliability Chip Inductors
MS450RAB
This robust version of Coilcraft’s standard 1812LS series
features high temperature materials that allow operation
in ambient temperatures up to 155°C. The leach-resistant
Inductance
2
L test
(µH)
freq (MHz)
12
2.5
15
2.5
18
2.5
22
2.5
27
2.5
33
2.5
39
2.5
47
2.5
56
2.5
68
2.5
82
2.5
100
2.5
120
0.79
150
0.79
180
0.79
220
0.79
270
0.79
330
0.79
390
0.79
470
0.79
560
0.79
680
0.79
820
0.79
1000
0.79
Percent
tolerance
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
base metalization with tin-lead (Sn-Pb) terminations
ensures the best possible board adhesion.
Part number
1
MS450RAB123JSZ
MS450RAB153JSZ
MS450RAB183JSZ
MS450RAB223JSZ
MS450RAB273JSZ
MS450RAB333JSZ
MS450RAB393JSZ
MS450RAB473JSZ
MS450RAB563JSZ
MS450RAB683JSZ
MS450RAB823JSZ
MS450RAB104JSZ
MS450RAB124JSZ
MS450RAB154JSZ
MS450RAB184JSZ
MS450RAB224JSZ
MS450RAB274JSZ
MS450RAB334JSZ
MS450RAB394JSZ
MS450RAB474JSZ
MS450RAB564JSZ
MS450RAB684JSZ
MS450RAB824JSZ
MS450RAB105JSZ
Q
min
3
22
22
24
20
24
22
20
24
22
24
24
24
25
23
24
23
23
24
14
15
13
13
13
15
Q test
freq (MHz)
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.25
0.25
0.25
0.25
0.25
0.25
SRF min
4
(MHz)
55
45
37
32
27
23
19
16
13
10
9.0
8.5
8.5
8.5
8.0
6.0
5.0
4.5
3.5
3.0
2.0
1.9
1.6
1.5
DCR max
5
(Ohms)
2.0
2.5
2.8
3.2
3.6
4.0
4.5
5.0
5.5
6.0
7.0
8.0
11.5
13.0
14.2
16.2
20.5
22.5
24.5
26.5
28.5
38.5
41.0
44.0
Imax
(mA)
280
260
240
210
200
190
185
180
170
150
135
135
110
100
85
80
75
70
65
65
65
60
50
50
1. When ordering, please specify
testing
code:
MS450RAB105JSZ
Testing: Z
= COTS
H
= Screening per Coilcraft CP-SA-10001
N
= Screening per Coilcraft CP-SA-10003
2. Inductance at 2.5 MHz measured using an Agilent/HP 4286A and
a Coilcraft SMD-A fixture with Coilcraft-provided correlation pieces.
Inductance at 0.79 MHz measured using an Agilent/HP 4192A and
Coilcraft SMD-B test fixture.
3. Q read at test frequency directly on an Agilent/HP 4192A LF imped-
ance analyzer and a Coilcraft SMD-B test fixture.
4. SRF measured using an Agilent/HP 8753D network analyzer and a
Coilcraft SMD-D test fixture.
5. DCR measured on a Cambridge Technology micro-ohmmeter.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Core material
Ferrite
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)
+200 to +700 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 MS106-2 Revised 10/11/11
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. 2012
1812 CHIP INDUCTORS
MS450RAB Series (1812)
Typical Q vs Frequency
60
55
50
45
40
1000 µH
470 µH
220 µH
100 µH
47 µH
22 µH
12 µH
0.1
1
10
100
10
0.1
1
10
100
Typical L vs Frequency
10000
Q Factor
35
30
25
20
15
10
5
0
47 µH
100 µH
470 µH
220 µH
22 µH
12 µH
Inductance (µH)
1000
1000 µH
100
Frequency (MHz)
Frequency (MHz)
Current Derating
120
110
100
A
B
overall
F
C
D
Pick and
place
material
I
H
Percent of rated
I
rms
90
80
70
60
50
G
J
F
E
terminal
Terminal wraparound:
approx 0.015/0,38 both ends
I
Suggested
Recommended
Land Pattern
Land Pattern
30
20
10
0
-55 -40
-20
0
20
25°C
40
A
B
C
D
max max max
ref
E
F
G
H
I
J
0.195 0.150 0.135 0.070 0.100 0.025 0.128 0.120 0.045 0.118 inches
4,95 3,81 3,43 1,78 2,54 0,64 3,25 3,05 1,14 3,00 mm
40
60
80
100
120
140 160
Ambient temperature (°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.
®
Document MS106-2 Revised 10/11/11
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. 2012
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