ROHM MCR03 Technical data
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MCR03
Resistors
Thick film rectangular resistors
MCR03 (1608 size)
!Features
1) Power rating of 1 / 10W
2) Highly reliable chip resistor
Ruthenium oxide dielectric offers superior resistance to the element s.
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 Conditions Specifications
Rated power
Rated voltage
Nominal resistance See Table 1.
Operating temperature
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
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
100
80
60
40
POWER LOAD (%)
20
0
−55 0 70 100 125 155
AMBIENT TEMPERATURE (°C)
Fig.1
E: Rated voltage (V) P: Rated power (W)
R: Nominal resistance (Ω)
0.10W (1 / 10W)
C
at 70°
Limiting element voltage 50V
−55°C to +155°C
1/5
MCR03
Resistors
Jumper type
Resistance
Rated current
Operating temperature
!Before using components in circuits where they will be exposed to transient s 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
Resistance
Variation of resistance
with temperature
Overload
Table 1
Max. 50mΩ
1A
−55°C to +155°C
Resistance tolerance
J (±5%)
FX (±1%) (EZP type)
D (±0.5%) (EZP type)
Resistance range
(Ω)
1.0 ≤ R < 2.2 500±350
2.2 ≤ R < 10 ±500
10 ≤ R ≤ 2.2M
10 ≤ R < 100 ±100
(E24)
(E24)
(E24)
(E24,96)
(E24)
(E24)
Resistance temperature coefficient
(ppm/°C)
±20010 ≤ R ≤ 10M
±100
±50100≤ R ≤ 1M
Item Test conditions (JIS C 5201-1)
Resistor type
J : ±5%
FX : ±1%
D : ±0.5%
± (2.0%+0.1Ω) Max. 50mΩ
Guaranteed value
Max. 50mΩ JIS C 5201-1 4.5
See Table.1
Jumper type
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
Solderability
Resistance to
soldering heat
Rapid change of
temperature
Damp heat, steady state
Endurance at 70°C
Endurance
Resistance to solvent
Bend strength of
the end face plating
A new uniform coating of minimum of
95% of the surface being immersed
and no soldering damage.
± (1.0%+0.05Ω)
No remarkable abnormality on the appearance.
± (1.0%+0.05Ω)
± (3.0%+0.1Ω)
± (3.0%+0.1Ω)
± (3.0%+0.1Ω)
± (1.0%+0.05Ω)
± (1.0%+0.05Ω)
Without mechanical damage such as breaks.
Max. 50mΩ
Max. 50mΩ
Max. 100mΩ
Max. 100mΩ
Max. 100mΩ
Max. 50mΩ
Max. 50mΩ
JIS C 5201-1 4.17
Rosin·Ethanol (25%WT)
Soldering condition : 235±5
Duration of immersion : 2.0±0.5s.
JIS C 5201-1 4.18
Soldering condition : 260±5
Duration of immersion : 10±1s.
JIS C 5201-1 4.19
Test temp. : −55
JIS C 5201-1 4.24
°C, 93%RH
40
Test time : 1,000h~1,048h
JIS C 5201-1 4.25.1
Rated voltage (current), 70
1.5h : ON − 0.5h : OFF
Test time : 1,000h~1,048h
JIS C 5201-1 4.25.3
°C
155
Test time : 1,000h~1,048h
JIS C 5201-1 4.29
°C
, Immersion cleaning, 5±0.5min.
23±5
Solvent : 2-propanol
JIS C 5201-1 4.33
°C
~+125°C 5cyc
°C
°C
°C
2/5
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