Double Sided
Chip Resistors
DSC Series
Welwyn Components
DSC2512 - Bellcore GR1089 Lightning Surge
10,000
Peak Voltage (V)
2/10us
1,000
10/1000us
100
1
10
100
1,000
10,000
100,000
1,000,000
10,000,000
Value (Ohms)
Single Pulse
The single impulse graph is the
result of 50 impulses of rectangular
shape applied at one-minute
intervals. The limit of acceptance
was a shift in resistance of less
than 1% from the initial value.
Single Pulse
1,000
Peak Power (W)
100
1206
2010
2512
10
1
0.0001
0.001
0.01
0.1
1
Pulse Duration (s)
Continuous Load Due
to Repetitive Pulses
The continuous load graph was
obtained by applying repetitive
rectangular pulses where the pulse
period was adjusted so that the
average power dissipated in the
resistor was equal to its rated power
at 70°C. Again the limit of acceptance
was a shift in resistance of less than
1% from the initial value.
1,000
Continuous Pulses
Peak Power (W)
100
1206
2010
2512
10
1
0.0001
0.001
0.01
0.1
1
Pulse Duration (s)
© 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
Issue B · 01.06
WELWYN [ WELWYN COMPONENTS LIMITED ]
