ST235RAA Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Chip Inductors for Critical Applications

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.
Typical L vs Frequency
30
27 nH
25
20
19 nH
15
12 nH
10
5.6 nH
5
1 nH
0
1
10
100
1000
10000
Frequency (MHz)
Typical Q vs Frequency
120
110
100
90
80
70
60
50
40
30
20
10
0
1
12 nH
5.6 nH
19 nH
27 nH
1 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
Ambient temperature (°C)
B
overall
F
C
D
H
I
A
G
J
F
I
E
terminal
Terminal wraparound:
approx 0.007/0,18 both ends
Suggested
Land Pattern
A
B
CD
max max max ref E F G H I J
0.047 0.025 0.026 0.010 0.020 0.009 0.022 0.026 0.014 0.018
1,19 0,64 0,66 0,25 0,51 0,23 0,56 0,66 0,36 0,46
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
© Coilcraft, Inc. 2012
Document ST198-1  Revised 10/25/12
®
1102 Silver Lake Road
Cary, IL 60013
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Email [e-mail]
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.