ST312RAG Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Chip Inductors for Critical Applications

0603 CHIP INDUCTORS
Chip Inductors for Critical Applications ST312RAG
■ Higher Q and lower DCR than other 0603 inductors
■ Highest SRF values – as high as 16 GHz
■ Excellent current handling capability – up to 1500 mA
■ 43 inductance values from 1.8 to 150 nH
Typical L vs Frequency
1000
100
10
150 nH
82 nH
51 nH
24 nH
10 nH
Current Derating
120
110
100
90
80
70
60
50
40
30
20
10
0
-55 -40 -20
0 20 40 60 80 100 120 140 160
Ambient temperature (°C)
1
10
100
1000
10000
Frequency (MHz)
Typical Q vs Frequency
160
140
10 nH
120
100
24 nH
80
51 nH
60
82 nH
150 nH
40
20
0
10
100
1000
Frequency (MHz)
10000
B
overall
F
C
H
D
I
A
G
J
F
I
E
terminal
Terminal wraparound:
approx 0.01/0,24 both ends
Suggested
Land Pattern
A
B
C 
max min – max max D E F G H I J
0.069 0.034 – 0.043 0.034 0.015 0.029 0.013 0.038 0.040 0.027 0.028 inches
1,75 0,86 – 1,09 0,86 0,38 0,74 0,33 0,96 1,02 0,69 0,71 mm
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
Terminations  Silver-palladium-platinum-glass frit. Other termina-
tions available at additional cost.
Ambient temperature  –40°C to +125°C with Irms current, +125°C
to +140°C with derated current
Storage temperature  Component: –55°C to +125°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 +125 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 mm thick,
4 mm pocket spacing
© Coilcraft, Inc. 2012
Document ST537-1  Revised 11/06/12
®
1102 Silver Lake Road
Cary, IL 60013
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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.