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MS312RAA Datasheet, PDF (1/2 Pages) Coilcraft lnc. – High-Reliability Chip Inductors
0603 CHIP INDUCTORS
High-Reliability Chip Inductors MS312RAA
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
200
175
120 nH
150
125
100
68 nH
75
50
33 nH
25
0
10
100
1000
Frequency (MHz)
12 nH
3.9 nH
10000
Typical Q vs Frequency
120
110
100
90
80
70
60
50
40
30
20
10
0
1
3.9 nH
12 nH
33 nH
68 nH
120 nH
10
100
1000
Frequency (MHz)
10000
Current Derating
120
110
100
90
80
70
60
50
40
30
20
10
0
-40 -20 0 20 40 60 80 100 120 140 160
Ambient temperature (°C)
B
overall
A
E
terminal
C
F
G
F
D
Terminal wraparound:
approx 0.007/0,18 both ends
H
I
J
I
Suggested
Land Pattern
A
B
CD
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
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.
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
© Coilcraft, Inc. 2012
Document MS195-1  Revised 11/06/12
®
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.