UCR18_10 Datasheet, PDF (1/4 Pages) Rohm – Fixed Thick Film Low Ohmic Chip Resistors For Current Detection

Fixed Thick Film Low Ohmic Chip Resistors For Current Detection
UCR18 (3216(1206) size : 1 / 2W)
zFeatures
1) Chip resistors ideal for current detection. (11mΩ to 100mΩ)
2) Unique chip and terminal configuration reduces resistance shifting during the mounting process.
3) Superior rated power.
4) ROHM resistors have approved ISO9001- / ISO/TS 16949- certification
zRatings
Design and specifications are subject to change without notice. Carefully check the specification sheet before using or ordering it.
Item
Rated power
Conditions
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
100
Specifications
0.5W (1 / 2W)
at 70°C
80
60
40
20
0 _−55
0
70 100
155
AMBIENT TEMPERATURE (°C)
Fig.1
Rated voltage
The voltage rating is calculated by the following equation.
E= P×R
E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)
Nominal resistance See Table 1.
Operating temperature
−55°C to + 155°C
Table 1
Resistance range
(Ω)
0.011 to 0.018 (E24)
0.020 to 0.039 (E24)
0.043 to 0.091 (E24)
0.1
Resistance tolerance
F (±1%)
J (±5%)
Special specification
S
L
Resistance temperature
coefficient (ppm/°C)
0 to 350
0 to 200
0 to 150
0 to 150
zBefore using components in circuits where they will be exposed to transients such as pulse loads (short–duration, high– level loads), be certain to evaluate the
component in the mounted state. In addition, the reliability and performance of this component cannot be guaranteed if it is used with a steady state voltage that
is greater than its rated voltage.
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2010.04 - Rev.D