MCR25_11 Datasheet, PDF (1/4 Pages) Rohm – Low Ohmic Thick Film Chip Resistors

Low Ohmic Thick Film Chip Resistors
MCR25 (3225 size (1210 size) : 1 / 2W)
Features
1) Highly reliable chip resistor
Ruthenium oxide resistive material offers superior resistance to the elements.
2) Electrodes not corroded by soldering
Suitable for re-flow soldering.
3) ROHM resistors have approved ISO9001- / ISO/TS 16949- certification.
Ratings
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
Rated voltage
0
−55
0
70 100 125
AMBIENT TEMPERATURE (°C)
Fig.1
The voltage rating is calculated by the following equation.
If the value obtained exceeds the limiting element voltage,
the voltage rating is equal to the maximum operating voltage.
E= P×R
E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)
Limiting element voltage 2.13(9.1Ω)
Nominal resistance See Table 1.
Operating temperature
−55°C to +155°C
Table 1
Resistance tolerance Special code
F (±1%)
L
Resistance range
(Ω)
Resistance temperature coefficient
(ppm / ˚C)
0.1 to 9.1
(E24)
±200
S
0.047 to 0.091 (E24)
300±300
J (±5%)
L
0.1 to 0.91 (E24)
±200
S
0.047 to 0.091 (E24)
300±300
Before 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.
www.rohm.com
1/3
○^c 2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev.E