Ruthenium oxide dielectric offers superior resistance to the elements.
3) Electrodes not corroded by soldering
Thick film makes the electrodes very strong.
4) Resin protective coating for FX, D resistors
Absorbs impact, facilitates mounting.
5) ROHM resistors have approved ISO–9001 certification.
Design and specifications are subject to change without notice. Carefully check the specification sheet supplied with the
product before using or ordering it.
!Ratings
Item
Rated power
Conditions
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
100
80
POWER LOAD (%)
Specifications
0.10W (1 / 10W)
at 70°C
60
40
20
0
−55
0
70
100
125
155
AMBIENT TEMPERATURE (°C)
Fig.1
Rated voltage
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=
Nominal resistance
Operating temperature
P×R
E: Rated voltage (V) P: Rated power (W)
R: Nominal resistance (Ω)
Limiting element voltage
50V
See Table 1.
−55°C
to
+155°C
1/5
MCR03
Resistors
Jumper type
Resistance
Rated current
Max. 50mΩ
1A
J (±5%)
Table 1
Resistance tolerance
Resistance range
(Ω)
1.0
≤
R
<
2.2
2.2
≤
R
<
10
(E24)
(E24)
Resistance temperature coefficient
(ppm/°C)
500±350
±500
±200
±100
±100
±50
Operating temperature
−55°C
to
+155°C
10
≤
R
≤
10M (E24)
FX (±1%) (EZP type)
D (±0.5%) (EZP type)
10
≤
R
≤
2.2M (E24,96)
10
≤
R
<
100
100≤ R
≤
1M
(E24)
(E24)
!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.
!Characteristics
Item
Guaranteed value
Resistor type
Jumper type
J :
±5%
FX :
±1%
D :
±0.5%
Max. 50mΩ
Test conditions (JIS C 5201-1)
JIS C 5201-1 4.5
Resistance
Variation of resistance
with temperature
Overload
See Table.1
±
(2.0%+0.1Ω)
JIS C 5201-1 4.8
Measurement :
−55
/
+25
/
+125°C
JIS C 5201-1 4.13
Rated voltage (current)
×2.5,
2s.
Limiting element voltage
×2
: 100V
JIS C 5201-1 4.17
Rosin·Ethanol (25%WT)
Soldering condition : 235±5°C
Duration of immersion : 2.0±0.5s.
JIS C 5201-1 4.18
Soldering condition : 260±5°C
Duration of immersion : 10±1s.
JIS C 5201-1 4.19
Test temp. :
−55°C~+125°C
5cyc
JIS C 5201-1 4.24
40°C, 93%RH
Test time : 1,000h~1,048h
JIS C 5201-1 4.25.1
Rated voltage (current), 70°C
1.5h : ON
−
0.5h : OFF
Test time : 1,000h~1,048h
JIS C 5201-1 4.25.3
155°C
Test time : 1,000h~1,048h
JIS C 5201-1 4.29
23±5°C, Immersion cleaning, 5±0.5min.
Solvent : 2-propanol
JIS C 5201-1 4.33
Max. 50mΩ
Solderability
A new uniform coating of minimum of
95% of the surface being immersed
and no soldering damage.
±
(1.0%+0.05Ω)
Max. 50mΩ
No remarkable abnormality on the appearance.
±
(1.0%+0.05Ω)
±
(3.0%+0.1Ω)
Max. 50mΩ
Max. 100mΩ
Resistance to
soldering heat
Rapid change of
temperature
Damp heat, steady state
±
(3.0%+0.1Ω)
Endurance at 70°C
±
(3.0%+0.1Ω)
Endurance
Max. 100mΩ
Max. 100mΩ
±
(1.0%+0.05Ω)
Resistance to solvent
Max. 50mΩ
Bend strength of
the end face plating
±
(1.0%+0.05Ω)
Max. 50mΩ
Without mechanical damage such as breaks.
2/5
MCR03
Resistors
!External
dimensions
(Units : mm)
1
No.
2
1
Material
Thick dielectric glaze of ruthenium
(only silver used for jumper)
Thick film of palladium-silver for primary electrode
Nickel-coated secondary electrode
External electrode coated with Sn/Pb or Sn
Alumina substrate
Overcoating (J : glass, FX, D : resin)
0.3±0.2
3
2
0.45±0.1
0.3±0.2
1.6±0.1
5
3
4
4
5
(J)
(FX, D)
6
6
!Packaging
Reel
Taping
P
0
P
2
P
1
φD
0
E
F
B
0
08
06
04
02
02
04
06
08
0.8±0.1
W
A
B
D
A
0
Heat crimp cover/Tape
Thick paper
mount
(Underside paper tape) Chip resistor Square punchout hole
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