 |
| Thick Film Chip Resistors |
The WCR Series Thick Film chip Resisitors are manufactured by screening a metal glaze layer on a high grade ceramic body. The different resistance values are obtained by using different compositions of metal glaze. The end contacts are made to ensure optimum solderability. The resistive layer is then given a protective coating. The WCR series offer a wide range of power rating 1/20W to 1W are available in tolerance ranges of  1% and 5%. The miniature size, the excellent mechanical strength and electrical stability ensures reduced costs and enhances dependability. |
| |
|
| S p e c i f i c a t i o n s |
| Type No: |
WCR-02
0201 |
WCR-04
0402 |
WCR-06
0603 |
WCR-10
0805 |
WCR-18
1206 |
WCR-20
1210 |
WCR-22
2010 |
WCR-24
2512 |
| Power Rating @70oC |
1/20W |
1/16W |
1/10W |
1/8W |
1/4W |
1/3W |
3/4W |
1W |
Operating Temp. Range
Derated to 0 load at |
-55oC to +125oC
+125oC
|
Max. working voltage
Max. overloaded volatge
|
15V
30V
|
25V
50V
|
50V
100V
|
150V
300V
|
200V
400V
|
200V
400V
|
200V
400V
|
200V
400V
|
Resistance Range
1%, E-96
5%, E-24
Zero Ohm jumper<0.05
|
10 ~ 1M
10 ~ 1M
|
10 ~ 1M
2 ~ 5.6M
|
10 ~ 1M
1 ~ 10M
|
10 ~ 1M
1 ~ 10M
|
10 ~ 1M
1 ~ 10M
|
10 ~ 1M
1 ~ 10M
|
10 ~ 1M
1 ~ 10M
|
10 ~ 1M
1 ~ 10M
|
| C h a r a c t e r i s t i c s |
| PERFORMANCE |
1% TOLERANCE |
5% TOLERANCE |
| Temperature Coefficient (by Type) |
 100 ppm/oC |
200 ppm/oC |
| Thermal Shock |
(0.05% + 0.05 ) |
(1.0% + 0.05 ) |
| Low Temperature Operation |
(0.05% + 0.05 ) |
(1.0% + 0.05 ) |
| Short Time Overload |
(1.0% + 0.05 ) |
(2.0% + 0.1) |
| High Temperature |
(1.0% + 0.05 ) |
(2.0% + 0.1) |
| Resistance to Soldering Heat |
(1.0% + 0.05 ) |
(1.0% + 0.05 ) |
| Moisture Resistance |
(0.5% + 0.05 ) |
(2.0% + 0.05) |
| Life |
(1.0% + 0.05 ) |
(3.0% + 0.1) |
| Solderability |
95%min.coverage |
95%min.coverage |
| Bending Strength |
(1.0% + 0.05 ) |
(1.0% + 0.005 ) |
| D i m e n s i o n s |
 |
| D i m e n s i o n s : m m |
| Style |
L |
W |
a |
b |
T |
| WCR-02 0201 |
0.60.08 |
0.30.03 |
0.130.08 |
0.150.08 |
0.230.03 |
| WCR-04 0402 |
1.000.10 |
0.500.05 |
0.200.10 |
0.250.10 |
0.350.05 |
| WCR-06 0603 |
1.600.10 |
0.800.10 |
0.300.20 |
0.300.20 |
0.450.05 |
| WCR-10 0805 |
2.000.10 |
1.250.10 |
0.400.20 |
0.400.20 |
0.500.05 |
| WCR-18 1206 |
3.100.10 |
1.600.10 |
0.500.25 |
0.500.25 |
0.550.05 |
| WCR-20 1210 |
3.100.10 |
2.600.10 |
0.500.25 |
0.500.20 |
0.550.05 |
| WCR-22 2010 |
5.000.10 |
2.500.10 |
0.600.25 |
0.500.20 |
0.550.05 |
| WCR-24 2512 |
6.350.10 |
3.200.10 |
0.600.25 |
0.500.20 |
0.550.05 |
|
| |
| Product Identification |
 |
| |
| Explanation |
- 5% tolerance: 3 digits, first two digits are significant figure third digit is number of zeros. Letter R is decimal.
- 1% tolerance: 4 digits, first three digits are significant figure, letter R is decimal point.
- 0603%: EIA-96 marking.
- 0201 and 0402 no marking
|
| Packing |
- Paper tape 7"reel
WCR - 02/04: 10,00 pcs
WCR - 06/010/18/20:5,000 pcs
- Plastic tape per 7"reel
WCR - 22/24 4000pcs
- Bulk bag: 5,000 per plastic bag, 2 bags per box
- Standard packaging is 8mm tape reel per EIA481.
|
|
| |
|