Double-Sided
Chip Resistors
DSC Series
Welwyn Components
•
Two parallel resistance elements
in a single chip
•
Excellent pulse withstand performance
•
Laser trimmed up to 0.5% tolerance
•
Enhanced working voltage
•
Enhanced power rating
•
Pb-free terminations
Electrical Data
1206
Power @70°C
2 second overload power @25°C
Short pulse performance
Resistance range
Tolerance
LEV
TCR
Operating temperature
Dielectric withstand voltage
Thermal Impedance
Pad & trace area for rated power*
Values
Ohms
%
Volts
ppm/°C
°C
Volts
°C/W
mm
2
160
50
200
Watts
Watts
0.33
2.1
2010
0.75
4.7
See graphs
1R0 to 4M7
10R to 1M: 0.5, All values: 1, 5
400
<10R:200 >10R:100
_
-55 to +155
500
80
60
E24 or 96 preferred - other values to special order
*
Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB
50
100
500
2512
1.5
9.4
Physical Data
Dimensions (mm) & Weight (g)
L
1206
2010
2512
3.2±0.4
5.1±0.3
6.5±0.3
W
1.6±0.2
2.5±0.2
3.2±0.2
T max
0.7
0.8
0.8
A
0.4±0.2
0.6±0.3
0.6±0.3
B min
1.7
3.0
4.4
C
0.4±0.15
0.6±0.25
0.6±0.25
Wt.
0.020
A
C
T
B
L
0.036
0.055
A
W
Wrap-around terminations
(3 faces)
Construction
Thick film resistor material, overglaze and organic protection are screen printed on a 96% alumina substrate. Wrap-around terminations
have an electroplated nickel barrier and Pb-free solderable coating, this ensures excellent ‘leach’ resistance properties and solderability.
Marking
Components are not marked. Reels are marked with type, value, tolerance, date code and quantity.
Solvent Resistance
The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
Issue B · 01.06
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
WELWYN [ WELWYN COMPONENTS LIMITED ]
