®
© Coilcraft, Inc. 2013
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.
High-Reliability Chip Inductors MS312RAA
0603 CHIP INDUCTORS
Document MS195-1 Revised
06/12/13
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.
This robust version of Coilcraft’s standard 0603CS series
features high temperature materials that allow operation in
ambient temperatures up to 155°C and a leach-resistant
base metalization with tin-lead (Sn-Pb) terminations that
ensures the best possible board adhesion.
Typical L vs Frequency
Typical Q vs Frequency
A B C D
max max max ref E F G H I J
0.071 0.044 0.040 0.015 0.030 0.013 0.034 0.040 0.025 0.025
1,80 1,12 1,02 0,38 0,76 0,33 0,86 1,02 0,64 0,64
Current Derating
-40 -20 020406080100 160140120
Ambient temperature (°C)
Percent of rated rmsI
120
110
100
90
80
70
60
50
40
30
20
10
0
25°C
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.
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 2000 per 7″ reel
Paper tape: 8 mm wide, 1.0 mm thick, 4 mm pocket spacing
I
I
J
H
A
B
overall
F
G
E
terminal
F
C
D
Te rminal wraparound:
approx 0.007/0,18 both ends
Suggested
Land Pattern
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.
10 100
Frequency (MHz)
Inductance (nH)
1000 10000
200
175
0
25
50
75
100
125
150
120 nH
68 nH
33 nH
3.9 nH
12 nH
120 nH
33 nH
3.9 nH
68 nH
12 nH
0
10
20
30
40
50
60
70
80
90
100
110
120
Q Factor
11010000100 1000
Frequency (MHz)
®
© Coilcraft, Inc. 2013
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.
MS312RAA Series (0603)
SRF DCR
Inductance2 Percent Q 900 MHz 1.7 GHz min4 max5 Imax Color
Part number1 (nH) tolerance
min3 L typ Q typ L typ Q typ (MHz) (Ohms) (mA) code
MS312RAA1N6JSZ 1.6 @ 250 MHz 5 26 1.67 49 1.65 63 >5000 0.022 700 Red
MS312RAA1N8JSZ 1.8 @ 250 MHz 5 21 1.83 35 1.86 50 >5000 0.045 700 Black
MS312RAA3N3_SZ 3.3 @ 250 MHz 5,2 35 3.31 75 3.38 88 >5000 0.045 700 Blue
MS312RAA3N6_SZ 3.6 @ 250 MHz 5,2 18 3.72 53 3.71 65 >5000 0.063 700 Red
MS312RAA3N9_SZ 3.9 @ 250 MHz 5,2 20 3.95 49 3.96 67 >5000 0.080 700 Brown
MS312RAA4N3_SZ 4.3 @ 250 MHz 5,2 29 4.32 50 4.33 70 >5000 0.063 700 Orange
MS312RAA4N7_SZ 4.7 @ 250 MHz 5,2 18 4.72 47 4.75 57 >5000 0.116 605 Violet
MS312RAA5N1_SZ 5.1 @ 250 MHz 5,2 20 4.93 47 4.95 56 >5000 0.140 510 Green
MS312RAA5N6_SZ 5.6 @ 250 MHz 5,2,1 25 5.77 63 6.05 80 4760 0.075 700 Black
MS312RAA6N8_SZ 6.8 @ 250 MHz 5,2,1 28 6.75 60 7.10 81 4660 0.110 700 Red
MS312RAA7N5_SZ 7.5 @ 250 MHz 5,2,1 23 7.70 60 7.82 65 4320 0.106 700 Brown
MS312RAA8N2_SZ 8.2 @ 250 MHz 5,2,1 26 8.25 82 8.37 87 3880 0.115 700 Orange
MS312RAA8N7_SZ 8.7 @ 250 MHz 5,2,1 27 8.86 62 9.32 58 3680 0.109 700 Yellow
MS312RAA9N5_SZ 9.5 @ 250 MHz 5,2,1 22 9.70 59 9.92 61 4100 0.135 700 Blue
MS312RAA10N_SZ 10 @ 250 MHz 5,2,1 28 10.0 66 10.6 83 3860 0.130 700 Orange
MS312RAA11N_SZ 11 @ 250 MHz 5,2,1 26 11.0 53 11.5 56 3640 0.130 700 Gray
MS312RAA12N_SZ 12 @ 250 MHz 5,2,1 29 12.3 72 13.5 83 3220 0.130 620 Yellow
MS312RAA15N_SZ 15 @ 250 MHz 5,2,1 28 15.4 64 16.8 89 3020 0.170 600 Green
MS312RAA16N_SZ 16 @ 250 MHz 5,2,1 29 16.2 55 17.3 52 3040 0.170 600 White
MS312RAA18N_SZ 18 @ 250 MHz 5,2,1 29 18.7 70 21.4 69 2680 0.170 600 Blue
MS312RAA22N_SZ 22 @ 250 MHz 5,2,1 31 22.8 73 26.1 71 2380 0.190 560 Violet
MS312RAA23N_SZ 23 @ 250 MHz 5,2,1 39 24.1 71 28.0 67 2380 0.190 560 Orange
MS312RAA24N_SZ 24 @ 250 MHz 5,2,1 36 24.5 45 28.7 39 2380 0.190 560 Black
MS312RAA27N_SZ 27 @ 250 MHz 5,2,1 32 29.2 74 34.6 65 2380 0.220 530 Gray
MS312RAA30N_SZ 30 @ 250 MHz 5,2,1 32 31.4 47 39.9 28 2240 0.220 500 Brown
MS312RAA33N_SZ 33 @ 250 MHz 5,2,1 33 36.0 67 49.5 42 1900 0.220 500 White
MS312RAA36N_SZ 36 @ 250 MHz 5,2,1 32 39.4 47 52.7 24 1960 0.250 460 Red
MS312RAA39N_SZ 39 @ 250 MHz 5,2,1 36 42.7 60 60.2 40 1740 0.250 460 Black
MS312RAA43N_SZ 43 @ 250 MHz 5,2,1 28 47.0 44 64.9 21 1580 0.280 440 Orange
MS312RAA47N_SZ 47 @ 200 MHz 5,2,1 35 52.2 62 77.2 35 1560 0.280 440 Brown
MS312RAA51N_SZ 51 @ 200 MHz 5,2,1 38 55.5 69 82.2 34 1560 0.270 420 Blue
MS312RAA56N_SZ 56 @ 200 MHz 5,2,1 37 62.5 56 97.0 26 1480 0.310 420 Red
MS312RAA68N_SZ 68 @ 200 MHz 5,2,1 35 80.5 54 168 21 1380 0.340 410 Orange
MS312RAA72N_SZ 72 @ 150 MHz 5,2,1 35 82.0 53 135 20 1360 0.490 340 Yellow
MS312RAA82N_SZ 82 @ 150 MHz 5,2,1 29 96.2 54 177 21 1300 0.540 340 Green
MS312RAAR10_SZ 100 @ 150 MHz 5,2,1 28 124 49 — — 1140 0.580 310 Blue
MS312RAAR11_SZ 110 @ 150 MHz 5,2,1 30 138 43 — — 1080 0.610 310 Violet
MS312RAAR12_SZ 120 @ 150 MHz 5,2,1 28 166 39 — — 1020 0.650 270 Gray
MS312RAAR15_SZ 150 @ 150 MHz 5,2,1 28 250 25 — — 900 0.915 250 White
MS312RAAR18_SZ 180 @ 100 MHz 5,2,1 25 305 22 — — 820 1.25 210 Black
1. When ordering, specify tolerance, termination and testing codes:
MS312RAAR39JSZ
Tolerance: F = 1% G = 2% J = 5%
Termination: S = Tin-lead (63/37) over silver-platinum-glass frit.
Special order:
T = Tin-silver-copper (95.5/4/0.5) over silver-platinum-
glass frit.
P = Tin-lead (63/37) over tin over nickel over silver-
platinum-glass frit.
Q = Tin-silver-copper (95.5/4/0.5) over tin over nickel
over silver-platinum-glass frit.
Testing: Z = COTS
H = Group A screening per Coilcraft CP-SA-10001
N = Group A screening per Coilcraft CP-SA-10003
0603 CHIP INDUCTORS
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 MS195-1 Revised
16/12/13
