60
Derating curve Construction
Maximum dissipation (P) in percentage of
rated power as a function of the operating
ambient temperature (T
amb
).
100
80
60
40
20
-55-40 -20020 40 60 80
70
100120 140 160
Ambient Temperature (
C)
155
Dimensions
W
unit: m
I
2
I
2
I
1
I
1
L
H
Type L W H I
1
I
2
SR0402 1.00±0.05 0.50±0.05 0.35±0.05 0.20±0.10 0.25±0.10
SR0603 1.60±0.10 0.80±0.10 0.45±0.10 0.25±0.15 0.25±0.15
SR0805 2.00 ±0.10 1.25 ±0.10 0.50 ±0.10 0.35 ±0.20 0.35 ±0.20
SR1206 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.40 ±0.20
SR1218 3.10 ±0.10 4.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.40 ±0.20
SR2010 5.00 ±0.10 2.50 ±0.15 0.55 ±0.10 0.55 ±0.15 0.50 ±0.20
SR2512 6.35 ±0.10 3.10 ±0.15 0.55 ±0.10 0.60 ±0.20 0.50 ±0.20
overcoat
protective glass
resistive layer
inner electrode
termination (Ni / matte tin)
ceramic substrate
inner electrode
marking layer
Features
• Reducedsizeofnalequipment
• Low assembly costs
• Higher component and equipment reliability
• Excellent performance at pulse loading
Chip Resistors Selection Charts
SR - Surge chip resistors, 0402 to 2512