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Features
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Applications
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Lead free versions available
RoHS compliant (lead free version)*
8 T-filters with common ground
Stable thin-film-on-silicon technology
Ultra-miniature packages to
JEDEC standards
Bi-directional EMI/RFI filtering on bus
lines
High frequency applications
Ideal for space-constrained applications
*R
Thin Film on Silicon 2CFB T-Filter
General Information
Package Schematic
20
T-Filters are typically used for Bi-Directional filtering of EMI
and RFI on high speed data lines connecting computer with
peripheral. These Silicon-based, Tantalum-Nitride resistors
and capacitors feature excellent stability, temperature
coefficients and tracking performance. This product series
conforms to JEDEC standards.
19
18
17
16
15
14
13
12
11
1
Electrical & Environmental Characteristics
2
3
4
5
6
7
8
9
10
Electrical Characteristics
Resistance Range
Resistor Tolerance
Power Rating per Resistor @ 70 °C
Capacitor Range
Capacitor Tolerance
Capacitor Breakdown Voltage
Operating Voltage
Symbol
R
Minimum
10
Nominal
±10 %
Maximum
100
0.1
Unit
Ω
Ω
Watt
pF
pF
V
V
V
°C
°C
Watt
C
15
25
±20 %
35
250
50
2K
-55
-65
Environmental Characteristics
ESD
Operating Temperature
Storage Temperature
Power Rating per Package @ 70 °C
TJ
Tstg
+125
+150
1.0
Filter Response
0
-2
-4
-6
2CFB-250/201M-Q20T
2CFB-470/330M-Q20T
Attenuation - dB
-8
-10
-12
-14
-16
-18
-20
0.0001
0.001
0.01
0.1
1
10
100
Frequency - MHz
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thin Film on Silicon 2CFB T-Filter
Mechanical Characteristics
QSOP Package Dimensions
A
.635
TYP.
(.025)
3.81 - 3.99
(.150 - .157)
Model
2QSP20
A
8.56 - 8.74 (.337 - .344)
Governing dimensions are in mm. Dimensions in
parentheses are in inches and are approximate.
JEDEC Reference Number MO-137.
QSOP Package Power Temperature Derating Curve
PIN 1
.21 - .31
(.008 - .012)
1.35 - 1.75
(.053 - .069)
1.25
WATTS
1.0
.75
.50
.25
0
25
50
75
100
125
150
AMBIENT TEMPERATURE (
°
C )
2QSP20
.10 - .25
(.004 - .010)
Typical Part Marking
0-8
°
.19 - .25
(.007 - .010)
Represents total content. Layout may vary.
PRODUCT
FUNCTION
RESISTANCE CODE/
CAPACITANCE CODE
PIN 1 INDICATOR
(MOLDED INDENT)
MANUFACTURER'S
TRADEMARK
PIN COUNT
CFB20Q
470330M
YYWW
PACKAGE
STYLE
GRADE
5.80 - 6.20
(.228 - .244)
.41 - 1.27
(.016 - .050)
DATE CODE
Standard RC Values
R1
Value
(ohms)
25
47
100
C1
Value
(pF)
200
33
100
Cap.
BV
(typ.)
25
25
25
Part Number
(Tape & Reel)
2CFB-250/201M-Q20R
2CFB-470/330M-Q20R
2CFB-101/101M-Q20R
Part Number
(Tubes)
2CFB-250/201M-Q20T
2CFB-470/330M-Q20T
2CFB-101/101M-Q20T
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Thin Film on Silicon 2CFB T-Filter
Dispensing
For large quantities, the product will be dispensed in Tape and Reel (see diagram below).
A0
DIMENSIONS = MM (INCHES)
B0
K0
Package
QSOP
20 Pin
A0
6.5 (0.256)
B0
9.0 (0.354)
K0
2.1 (0.083)
Width
16 (0.630)
Pitch
8 (0.315)
No. of Pieces No. of Pieces
per 13 ” reel
per tube
3,500
56
How To Order
2 CFB-250/201 M-Q 20 T __
Product Class
Thin-Film-on-Silicon
Product Function
CFB = T-Filter
Resistance Value Code
1st two digits are significant,
3rd digit = number of zeros to follow
to give resistance value in ohms.
Capacitance Code
1st two digits are significant,
3rd digit = number of zeros to follow
to give capacitor value in pF.
Standard Grade
R Tol.
C Tol.
M = ±10 %
±20 %
Standard Package Style
Q = QSOP
Pin Count
Q = 20
Dispensing
R = Reel
T = Tube
Terminations
LF = 100 % Sn (lead free)
Blank = Sn/Pb
Reliable Electronic Solutions
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
04/05
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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