0402 CHIP INDUCTORS
Chip Inductors for Critical Applications
ST235RAA
This 0402 size chip inductor series shares all of the
characteristics of Coilcraft’s other ceramic inductors: ex-
ceptionally high Q factors, especially at use frequencies;
outstanding self-resonant frequency; tight inductance
tolerance; and excellent batch-to-batch consistency.
Current Derating
120
110
100
Percent of rated
I
rms
90
80
70
60
50
40
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Typical L vs Frequency
30
27 nH
25
Inductance (nH)
20
19 nH
15
12 nH
10
5.6 nH
1 nH
0
1
10
100
1000
10000
Ambient temperature (°C)
B
overall
C
D
Pick and
place
surface
I
25°C
H
5
F
A
G
F
Frequency (MHz)
J
I
Typical Q vs Frequency
120
110
100
90
80
12 nH
5.6 nH
19 nH
27 nH
1 nH
E
terminal
Terminal wraparound:
approx 0.007/0,18 both ends
Suggested
Land Pattern
G
0,56
H
0,66
I
0,36
J
0,46
A
max
0.047
1,19
B
max
0.025
0,64
C
max
0,66
D
ref
0,25
E
0,51
F
0,23
0.026 0.010 0.020 0.009 0.022 0.026 0.014 0.018
Q Factor
70
60
50
40
30
20
10
0
1
10
100
1000
10000
Note: Dimensions are before optional 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.
Core material
Ceramic
Ambient temperature
–40°C to +125°C with
Imax
current, +125°C
to +140°C with derated current
Storage temperature
Component: –55°C to +140°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)
Packaging
2000 per 7″ reel Paper tape: 8 mm wide, 0.68 mm
thick, 2 mm pocket spacing
Frequency (MHz)
®
Document ST198-1 Revised 06/12/13
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
0402 CHIP INDUCTORS
ST235RAA Series (0402)
Part
number
1
Inductance
2
Percent
(nH)
tolerance
1.0
1.8
1.9
2.0
2.2
2.4
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
8.7
9.0
9.5
10.0
11.0
12.0
13.0
15.0
16.0
18.0
19.0
20.0
22.0
23.0
24.0
27.0
30.0
33.0
36.0
40.0
5
5
5
5,2
5,2
5,2
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
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
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
5,2,1
5,2,1
5,2,1
5,2,1
Q
min
3
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
22
22
20
22
20
21
24
24
20
22
23
24
24
24
24
24
24
24
24
20
24
24
900 MHz
L typ Q typ
4
1.02
1.78
1.72
1.93
2.19
2.24
3.10
3.56
3.89
4.19
4.55
5.15
5.16
6.16
6.56
7.91
8.50
8.78
9.07
9.42
9.8
10.7
11.9
13.4
14.6
16.6
18.3
19.1
20.7
23.2
23.8
25.1
28.7
31.1
34.9
39.5
39.0
77
54
68
54
59
51
65
45
50
47
48
56
54
52
63
60
57
54
62
54
50
52
53
51
55
46
57
50
52
53
49
51
49
46
31
44
44
1.7 GHz
SRF min
5
4
L typ Q typ
(GHz)
1.02
1.78
1.74
1.93
2.23
2.27
3.12
3.62
4.00
4.30
4.68
5.25
5.28
6.37
6.93
8.22
8.85
9.21
9.53
9.98
10.10
11.20
12.70
14.63
15.50
18.86
20.28
21.10
23.66
26.75
26.90
29.50
33.50
38.50
41.74
48.40
47.40
69
75
82
75
100
68
87
71
75
71
68
82
81
76
78
88
84
73
78
69
67
78
71
57
77
47
62
67
53
53
64
50
63
39
32
53
33
>5.00
>5.00
>5.00
>5.00
>5.00
>5.00
>5.00
>5.00
>5.00
>5.00
4.77
4.80
4.80
4.80
4.80
4.80
4.40
3.80
4.66
3.48
3.68
3.48
3.60
3.28
3.10
3.05
2.68
3.00
2.90
2.80
2.72
2.60
2.48
2.35
2.30
2.20
2.24
DCR max
6
Imax
(Ohms)
(mA)
0.045
0.070
0.070
0.070
0.070
0.068
0.066
0.066
0.066
0.091
0.130
0.083
0.083
0.083
0.083
0.104
0.104
0.195
0.100
0.195
0.195
0.120
0.120
0.210
0.172
0.220
0.230
0.202
0.250
0.300
0.300
0.300
0.298
0.410
0.300
0.440
0.440
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
480
680
480
480
580
580
440
500
480
420
460
400
380
400
390
380
340
340
310
290
ST235RAA1N0JLZ
ST235RAA1N8JLZ
ST235RAA1N9JLZ
ST235RAA2N0_LZ
ST235RAA2N2_LZ
ST235RAA2N4_LZ
ST235RAA3N3_LZ
ST235RAA3N6_LZ
ST235RAA3N9_LZ
ST235RAA4N3_LZ
ST235RAA4N7_LZ
ST235RAA5N1_LZ
ST235RAA5N6_LZ
ST235RAA6N2_LZ
ST235RAA6N8_LZ
ST235RAA7N5_LZ
ST235RAA8N2_LZ
ST235RAA8N7_LZ
ST235RAA9N0_LZ
ST235RAA9N5_LZ
ST235RAA10N_LZ
ST235RAA11N_LZ
ST235RAA12N_LZ
ST235RAA13N_LZ
ST235RAA15N_LZ
ST235RAA16N_LZ
ST235RAA18N_LZ
ST235RAA19N_LZ
ST235RAA20N_LZ
ST235RAA22N_LZ
ST235RAA23N_LZ
ST235RAA24N_LZ
ST235RAA27N_LZ
ST235RAA30N_LZ
ST235RAA33N_LZ
ST235RAA36N_LZ
ST235RAA40N_LZ
1. When ordering, specify
tolerance, termination
and
testing
codes:
ST235RAAR10GLZ
Tolerance: F
= 1%
G
= 2%
J
= 5%
Termination: L
= RoHS compliant silver-palladium-platinum-glass frit.
Special order:
T
= RoHS tin-silver-copper (95.5/4/0.5) over silver-palla-
dium-platinum-glass frit
S
= non-RoHS tin-lead (63/37) over silver-palladium-
platinum-glass frit.
R
= Tin over nickel over silver-platinum-glass frit.
Q
= RoHS tin-silver-copper (95.5/4/0.5) over tin over
nickel over silver-platinum-glass frit.
P
= non-RoHS tin-lead (63/37) over tin over nickel over
silver-platinum-glass frit.
Testing:
Z
= COTS
H
= Group A screening per Coilcraft CP-SA-10001
2. Inductance measured at 250 MHz using a Coilcraft SMD-F test fixture
and Coilcraft-provided correlation pieces with an Agilent/HP 4286A
impedance analyzer or equivalent.
3. Q measured at 250 MHz using an Agilent/HP 4291A with an Agilent/
HP 16197A test fixture or equivalents.
4. Q measured using an Agilent/HP 4291A with an Agilent/HP 16197A test
fixture or equivalents.
5. SRF measured using an Agilent/HP 8753ES network analyzer and a
Coilcraft CCF1192 test fixture.
6. DCR measured on a Keithley 580 micro-ohmmeter and a Coilcraft
CCF1192 test fixture.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
®
Document ST198-2 Revised 06/12/13
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
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