66
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
TR0805-
TR1206
125
TR0402-
TR0603
overcoat
resistive layer
inner electrode
termination
ceramic substrate
Dimensions
W
unit: m
I
2
I
2
I
1
I
1
L
H
Type L W H I
1
I
2
TR0402 1.00 ±0.10 0.50 ±0.05 0.35 ±0.05 0.20 ±0.10 0.25 ±0.10
TR0603 1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.25 ±0.15 0.25 ±0.15
TR0805 2.00 ±0.10 1.25 ±0.10 0.50 ±0.10 0.35 ±0.20 0.35 ±0.20
TR1206 3.10 ±0.10 1.60 ±0.10 0.55 ±0.10 0.45 ±0.20 0.40 ±0.20
Features
• Reducedsizeofnalequipment
• Low assembly costs
• Higher component and equipment reliability
• Improved performance at high frequency
• Low noise, when not trimmed
Chip Resistors Selection Charts
TR - Trimmable chip resistors, 0402 to 1206