WCR1206 Datasheet, PDF (2/3 Pages) List of Unclassifed Manufacturers – General Purpose Surface Mounted Resistors

General Purpose Surface
M^Go^euⁿn^ete^rd^alR^Pes^uis^rt^po^ors^{se Surface}
M_WCo_Ru_Sn_ert_iee_sd Resistors
WCR Series
Welwyn Components
Marking
All resistors are individually marked with 3 digits. The first two
digits are the significant figures and the third defines the
number of added zeros. Jumpers are marked 000. Types 0201
and 0402 have no marking.
E96 1% components that can not be marked with 4 digits
will be marked with a standard 3 digit code. Details can be
supplied upon request.
Solvent Resistance
The protective epoxy lacquer and marking are resistant to all
normal industrial cleaning fluids suitable for printed circuits.
Table 1
Resistance
value ohms
100R
>100R, 10K
>10K, 100K
>100K, 1M0
>1M0
Noise
dB
-10
0
+15
+20
+30
Performance Data
Load: 1000 hrs at 70°C
Maximum Change
0201
0402
0603
0805
1206
1210
2010
2512
R% 10R-100K : 1 4R7-100K : 1 1R-100K : 1 1R-100K : 1 1R-100K : 1 1R-100K : 1 1R-100K : 1 3% + 0.1R
>100K : 2 >100K : 2 >100K : 2 >100K : 2 >100K : 2 >100K : 2 >100K : 2
Shelf life: 12 months at room temp.
R%
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Derate linearly to zero from 70°C
zero @ 125 °C
Short term overload (6.25 x rated power) R%
2
2
2.5
2.5
2.5
2.5
2.5
5
Max voltage
volts
50
100
100
200
400
400
400
400
Climatic
R%
3
3
3
3
3
3
3
3
Climatic Catagory
55/125/56
Long term damp heat
R%
1
Temperature rapid change
R%
1
1
1
1
1
1
1
1
Resistance to solder heat
R%
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
Vibration and bump
R%
1
1
1
1
1
1
1
1
Noise
see table 1
Insulation resistance
ohms
> 1G
Voltage proof
volts
100
300
500
500
500
500
500
Packaging
Packaging
All chips are tape mounted and supplied on standard 8mm
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(cEaxncebpets0u4p0p2liecdarbriyesag1r0e,e0m00enpti.eces)
Chip Resistor Labstock For Designers
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Psoleluastieoncofnotradctestihgenesarsleasnddesykoufor rpfruoltlodtyeptaeilbs _{uoifldthreisqeuxirceemlleenntts.}
Note: For zero ohm jumper chips use the dummy value & tolerance code R005J
General Note
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07.13