COILCRAFT ST312RAA

0603 CHIP INDUCTORS
Chip Inductors for Critical Applications ST312RAA
Small size, exceptional Q and high SRFs make these
inductors ideal for high frequency applications where
size is at a premium. They also have excellent DCR and
current carrying characteristics.
Current Derating
120
110
Typical L vs Frequency
200
175
120 nH
Inductance (nH)
150
125
90
80
70
60
50
40
30
20
10
68 nH
100
0
-40
75
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
33 nH
50
25
0
25°C
Percent of rated Irms
100
B
overall
12 nH
3.9 nH
10
100
1000
10000
Frequency (MHz)
A
H
C
F
I
G
J
F
Typical Q vs Frequency
E
terminal
120
3.9 nH
D
Terminal wraparound:
approx 0.007/0,18 both ends
I
Suggested
Land Pattern
110
12 nH
Q Factor
100
A B
C D
max
maxmaxrefE FGH IJ
90
0.071 0.044 0.040 0.015 0.0300.0130.0340.0400.0250.025
80
1,80 1,12 1,02 0,38 0,760,330,861,020,640,64
70
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.
33 nH
60
50
68 nH
120 nH
40
30
20
10
0
1
100
10
1000
10000
Frequency (MHz)
Core material Ceramic
Terminations Silver-palladium-platinum-glass frit. Other terminations available at additional cost.
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, 1.0 mm thick,
4 mm pocket spacing
Document ST195-1 Revised 11/06/12
®
© Coilcraft, Inc. 2012
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.
0603 CHIP INDUCTORS
ST312RAA Series (0603)
SRFDCR
1.7 GHz min4 max5 ImaxColor
Inductance2 PercentQ 900 MHz
Part number1
(nH)
tolerance min3 L typ Q typ L typ Q typ (MHz) (Ohms) (mA) code
ST312RAA1N6JLZ
ST312RAA1N8JLZ
ST312RAA3N3_LZ
ST312RAA3N6_LZ
ST312RAA3N9_LZ
ST312RAA4N3_LZ
ST312RAA4N7_LZ
ST312RAA5N1_LZ
ST312RAA5N6_LZ
ST312RAA6N8_LZ
ST312RAA7N5_LZ
ST312RAA8N2_LZ
ST312RAA8N7_LZ
ST312RAA9N5_LZ
ST312RAA10N_LZ
ST312RAA11N_LZ
ST312RAA12N_LZ
ST312RAA15N_LZ
ST312RAA16N_LZ
ST312RAA18N_LZ
ST312RAA22N_LZ
ST312RAA23N_LZ
ST312RAA24N_LZ
ST312RAA27N_LZ
ST312RAA30N_LZ
ST312RAA33N_LZ
ST312RAA36N_LZ
ST312RAA39N_LZ
ST312RAA43N_LZ
ST312RAA47N_LZ
ST312RAA51N_LZ
ST312RAA56N_LZ
ST312RAA68N_LZ
ST312RAA72N_LZ
ST312RAA82N_LZ
ST312RAAR10_LZ
ST312RAAR11_LZ
ST312RAAR12_LZ
ST312RAAR15_LZ
ST312RAAR18_LZ
1.6@ 250 MHz
1.8@ 250 MHz
3.3@ 250 MHz
3.6@ 250 MHz
3.9@ 250 MHz
4.3@ 250 MHz
4.7@ 250 MHz
5.1@ 250 MHz
5.6@ 250 MHz
6.8@ 250 MHz
7.5@ 250 MHz
8.2@ 250 MHz
8.7@ 250 MHz
9.5@ 250 MHz
10@ 250 MHz
11@ 250 MHz
12@ 250 MHz
15@ 250 MHz
16@ 250 MHz
18@ 250 MHz
22@ 250 MHz
23@ 250 MHz
24@ 250 MHz
27@ 250 MHz
30@ 250 MHz
33@ 250 MHz
36@ 250 MHz
39@ 250 MHz
43@ 250 MHz
47@ 200 MHz
51@ 200 MHz
56@ 200 MHz
68@ 200 MHz
72@ 150 MHz
82@ 150 MHz
100@ 150 MHz
110@ 150 MHz
120@ 150 MHz
150@ 150 MHz
180@ 100 MHz
5
5
5,2
5,2
5,2
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
5,2,1
26
21
35
18
20
29
18
20
25
28
23
26
27
22
28
26
29
28
29
29
31
39
36
32
32
33
32
36
28
35
38
37
35
35
29
28
30
28
28
25
1.67
1.83
3.31
3.72
3.95
4.32
4.72
4.93
5.77
6.75
7.70
8.25
8.86
9.70
10.0
11.0
12.3
15.4
16.2
18.7
22.8
24.1
24.5
29.2
31.4
36.0
39.4
42.7
47.0
52.2
55.5
62.5
80.5
82.0
96.2
124
138
166
250
305
1. When ordering, specify tolerance, termination and testing codes:
ST312RAAR39JLZ
Tolerance: F=1% G = 2% J = 5%
Termination:L=RoHS compliant silver-palladium-platinum glass frit.
Special order:
S=Tin-lead (63/37) over silver-platinum-glass frit.
T=Tin-silver-copper (95.5/4/0.5) over silver-platinumglass frit.
R=Tin over nickel over silver-platinum-glass frit.
P=Tin-lead (63/37) over tin over nickel over silverplatinum-glass frit.
Q=Tin-silver-copper (95.5/4/0.5) over tin over nickel
over silver-platinum-glass frit.
Testing:Z =COTS
H=Screening per Coilcraft CP-SA-10001
49
35
75
53
49
50
47
47
63
60
60
82
62
59
66
53
72
64
55
70
73
71
45
74
47
67
47
60
44
62
69
56
54
53
54
49
43
39
25
22
1.65
1.86
3.38
3.71
3.96
4.33
4.75
4.95
6.05
7.10
7.82
8.37
9.32
9.92
10.6
11.5
13.5
16.8
17.3
21.4
26.1
28.0
28.7
34.6
39.9
49.5
52.7
60.2
64.9
77.2
82.2
97.0
168
135
177
—
—
—
—
—
63
50
88
65
67
70
57
56
80
81
65
87
58
61
83
56
83
89
52
69
71
67
39
65
28
42
24
40
21
35
34
26
21
20
21
—
—
—
—
—
0.022
0.045
0.045
0.063
0.080
0.063
0.116
0.140
0.075
0.110
0.106
0.115
0.109
0.135
0.130
0.130
0.130
0.170
0.170
0.170
0.190
0.190
0.190
0.220
0.220
0.220
0.250
0.250
0.280
0.280
0.270
0.310
0.340
0.490
0.540
0.580
0.610
0.650
0.915
1.25
700
700
700
700
700
700
605
510
700
700
700
700
700
700
700
700
620
600
600
600
560
560
560
530
500
500
460
460
440
440
420
420
410
340
340
310
310
270
250
210
Red
Black
Blue
Red
Brown
Orange
Violet
Green
Black
Red
Brown
Orange
Yellow
Blue
Orange
Gray
Yellow
Green
White
Blue
Violet
Orange
Black
Gray
Brown
White
Red
Black
Orange
Brown
Blue
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Black
2. Inductance measured at 250 MHz using a Coilcraft SMD-A test fixture
and Coilcraft-provided correlation pieces with an Agilent/HP 4286A
impedance analyzer or equivalent.
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 and a
Coilcraft CCF1232 test fixture.
5. DCR measured on a Keithley 580 micro-ohmmeter and a Coilcraft
CCF1010 test fixture.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Document ST195-2 Revised 11/06/12
®
© Coilcraft, Inc. 2012
>5000
>5000
>5000
>5000
>5000
>5000
>5000
>5000
4760
4660
4320
3880
3680
4100
3860
3640
3220
3020
3040
2680
2380
2380
2380
2380
2240
1900
1960
1740
1580
1560
1560
1480
1380
1360
1300
1140
1080
1020
900
820
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.