Thin Film on Silicon 2CFB T-Filter
Features
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
Applications
Bi-directional EMI/RFI filtering on bus
lines
High frequency applications
Ideal for space-constrained applications
General Information
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.
Package Schematic
20
14
13
12
11
19
18
17
16
15
1
7
8
9
10
2
3
4
5
6
Electrical Characteristics
Symbol
Minimum
Nominal
Maximum
Unit
Resistance Range
R
10
100
Resistor Tolerance
10 %
Power Rating per Resistor @ 70 C
0.1
Watt
Capacitor Range
C
15
250
pF
Capacitor Tolerance
20 %
pF
Capacitor Breakdown Voltage
25
35
V
Operating Voltage
50
V
Environmental Characteristics
ESD
2 K
V
Operating Temperature
TJ
-55
+125
C
Storage Temperature
Tstg
-65
+150
C
Power Rating per Package @ 70 C
1.0
Watt
Electrical & Environmental Characteristics
Filter Response
0
Attenuation - dB
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
0.0001
0.001
0.01
Frequency - MHz
0.1
1
10
100
2CFB-250/201M-Q20T
2CFB-470/330M-Q20T
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
*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
A
.635
(.025)
TYP.
3.81 - 3.99
(.150 - .157)
PIN 1
.21 - .31
(.008 - .012)
1.35 - 1.75
(.053 - .069)
.10 - .25
(.004 - .010)
0-8
.19 - .25
(.007 - .010)
.41 - 1.27
(.016 - .050)
5.80 - 6.20
(.228 - .244)
Model
A
2QSP20
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.
Mechanical Characteristics
QSOP Package Dimensions
QSOP Package Power Temperature Derating Curve
WATTS
AMBIENT TEMPERATURE ( C )
1.0
1.25
.75
.50
.25
2QSP20
0
50
75
100
125
150
25
Typical Part Marking
R1
C1
Cap.
Part Number
Part Number
Value
Value
BV
(Tape & Reel)
(Tubes)
(ohms)
(pF)
(typ.)
25
200
25
2CFB-250/201M-Q20R
2CFB-250/201M-Q20T
47
33
25
2CFB-470/330M-Q20R
2CFB-470/330M-Q20T
100
100
25
2CFB-101/101M-Q20R
2CFB-101/101M-Q20T
Standard RC Values
Represents total content. Layout may vary.
PACKAGE
STYLE
PIN COUNT
470330M
CFB20Q
YYWW
PRODUCT
FUNCTION
RESISTANCE CODE/
CAPACITANCE CODE
GRADE
DATE CODE
MANUFACTURER'S
TRADEMARK
PIN 1 INDICATOR
(MOLDED INDENT)
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).
No. of Pieces No. of Pieces
Package
A0
B0
K0
Width
Pitch
per 13 " reel
per tube
QSOP
20 Pin
6.5 (0.256)
9.0 (0.354)
2.1 (0.083)
16 (0.630)
8 (0.315)
3,500
56
04/05
A0
B0
K0
DIMENSIONS = MM (INCHES)
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
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
Reliable Electronic Solutions
PDF 
ZIP