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Datasheet File OCR Text:

General Purpose Thick Film Chip Resistor
Organic Protection
WCR Series * * * * * Tolerances to 1% TCR down to 100ppm/C Zero ohm jumpers available Wide ohmic range from 1 to 10M Now supplied with RoHS compliant terminations
Wraparound termination
Glass Passivation Nickel Barrier Thick Film Element
Electrical Data
IRC Type TCR (ppm/C) 300 200 400 WCR0402 200 100 400 WCR0603 200 100 400 WCR0805 200 100 400 WCR1206 200 100 400 WCR1210 200 100 400 WCR2010 200 100 400 WCR2512 200 100 Ohmic Range () 5% 10R - 91R 100R - 10M 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1R0 - 10R 11R - 10M N/A 1% 10R - 97R6 100R - 1M 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1R0 - 10R 11R - 100R 101R - 1M0 1000 200 400 500 200 400 250 200 400 250 200 400 -55 to +155 125 150 200 100 50 100 63 50 100 Rated Power @ 70C (milliwatts) 50 Maximum Working Voltage (V) 25 Maximum Overload Voltage (V) 50 Operating Temperature Range (C)
WCR0201
General Note
IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of going to print.
(c) IRC Advanced Film Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
A subsidiary of TT electronics plc WCR Series Issue December 2008 Sheet 1 of 3
General Purpose Thick Film Chip Resistor
Environmental Data
Test Conditions Short Time Overload Temperature Cycling Test Method 5 seconds 2.5 X Rated Power 5 Cycles -55C to +125C 240 Hours 40C 2 90-95% RH 1000 Hours 70C 3 1.5 hours on 30 minutes off 1000 Hours -55C 3 10 1 Seconds 260C 5 3 0.5 Seconds 235C 5 Max Change (5%) 2.0% +0.1 1.0% +0.1 Max Change (1%) 1.0% +0.1 0.5% +0.1
Humidity
3.0% +0.1
1.0% +0.1
Load Life
3.0% +0.1
1.0% +0.1
Low Temperature Exposure Effects of Solder Heat Solderability
1.0% +0.1 1.0% +0.1 95% Min Coverage
1.0% +0.1 1.0% +0.1 95% Min Coverage
Physical Data (inches)
L a
TOP
W
BO TT OM
SIDE
b
H
Model WCR0201 WCR0402 WCR0603 WCR0805 WCR1206 WCR1210 WCR2010 WCR2512
L 0.0240.002 0.0390.004 0.0630.004 0.0790.006 0.1250.006 0.1260.004 0.1970.004 0.2480.004
W 0.0120.002 0.0200.002 0.0320.006 0.0490.006 0.0610.006 0.1020.006 0.0980.006 0.1260.006
H 0.0090.002 0.0140.002 0.0200.004 0.0200.004 0.0240.004 0.0240.004 0.0240.004 0.0240.004
a 0.0050.002 0.0080.004 0.0120.008 0.0160.008 0.0180.008 0.0200.010 0.0230.010 0.0230.010
b 0.0060.002 0.0100.004 0.0120.008 0.0120.008 0.0180.008 0.0200.008 0.0200.008 0.0200.008
(c) IRC Advanced Film Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
WCR Series Issue December 2008 Sheet 2 of 3
General Purpose Thick Film Chip Resistor
Power Derating Chart
100
% Of Rated P ower
50
10
25
70
155
Temperature in C
Packaging Reel Physical Data
Size 0201 0402
A
Tape Paper Paper Paper Paper Paper Paper Paper Plastic
Qty 15K 15K 5K 5K 5K 5K 4K 4K
A (mm) 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5
B (mm)
C (mm)
W (mm) 10.01 10.01 10.01 10.01 10.01 10.01 13.81 13.81
13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5 13.00.5 21.00.5
0603
B
60mm 1
0805 1206
C
1210
o178mm 2
2010
W
2512
Ordering Data
Sample Part Number Model WCR - WCR1206LF - 1001 - F - P - LT
WCR00201LF, WCR0402LF, WCR0603LF, WCR0805LF WCR1206LF, WCR1210LF, WCR2010LF, WCR2512LF
Resistance
3-digit resistance code for tolerances G and J. 4-digit resistance code for tolerances F and D.
Tolerance
J = 5%; G = 2%, F = 1%
Tape Type
P = Paper, E = Plastic
Tape & Reel Packaging
For additional information or to discuss your specific requirements, please contact our Applications Team using the contact details below.
(c) IRC Advanced Film Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com
WCR Series Issue December 2008 Sheet 3 of 3

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