查询MCR18供应商
Resistors
Thick film rectangular
MCR18 (3216 size: 1 / 4W)
!Features
1) Power rating of 1 / 4W
2) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements.
3) Electrodes not corroded by soldering
Thick film makes the electrodes very strong.
4) Leading the world in development and mass production.
Since start of production in 1976 (first in the wold), this component has established a solid reputation as a general–
purpose chip resistor.
5) ROHM resistors have approved ISO–9001 certification.
Design and specifications are subject to change without notice. Carefully check the specification sheet before using or
ordering it.
MCR18
!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
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.
100
80
60
40
POWER LOAD (%)
20
0
−55 0 70 100 155
E= P×R
AMBIENT TEMPERAT
E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)
URE (°C)
Fig.1
0.25W (1 / 4W)
°
C
°
C
at 70
to +155
200V
°
C
°
C
.
Limiting element voltage
−55
Resistors
MCR18
Jumper type
Resistance
Rated current
Operating temperature
!
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.
Max. 50mΩ
−55
°
C
2A
to +155
Table 1
Resistance tolerance
F (±1%)
°
C
J (±5%)
Resistance range
≤ R < 0.15
0.1
≤ R
< 10 (E24)
0.15
≤ R
≤ 2.2M (E24,96)
10
≤ R < 0.15
0.1
0.15
≤ R
< 1 (E24)
1.0
≤ R
< 2.2
2.2
≤ R
< 10
10
≤ R
≤ 10M
(Ω)
(E24)
(E24)
(E24)
(E24)
(E24)
Resistance temperature coefficient
(ppm / °
400±200
±250
±100
400±200
±250
500±350
±500
±200
C
)
!Characteristics
Item Test conditions (JIS C 5201-1)
Resistance
Variation of resistance
with temperature
Overload
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
Resistor type
J : ±5%
F : ±1%
± (2.0%+0.1Ω) Max. 50mΩ
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.
Guaranteed value
Max. 50mΩ JIS C 5201-1 4.5
See Table.1
Max. 50mΩ
Max. 50mΩ
Max. 100mΩ
Max. 100mΩ
Max. 100mΩ
Max. 50mΩ
Max. 50mΩ
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 : 400V
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
23±5
°C
Solvent : 2-propanol
JIS C 5201-1 4.33
°C
, Immersion cleaning, 5±0.5min.
°C
°C
~+125°C 5cyc
°C
Resistors
MCR18
!
External dimensions
(Units : mm)
0.5±0.25
0.5±0.25
3.2±0.15
1
2
3
4
5
0.55±0.1
6
1.6±0.15
No.
1
Resistive element (Oxide metal thick film)
2
Silver palladium thick film electrode
3
Nickel electrode
4
Sn/Pb or Sn electrode
5
Alumina substrate
6
Overcoating (glass)
!Packaging
Reel Taping
0 2
0 4
0 6
ABD
0 2
0 4
0 6
0 8
C
Label
(Units: mm)
ABCD
φ180
0
φ60
−3
+1.0
+1
9
0
±0.2
φ13
0
0 8
EIAJ ET-7200A compliant
Heat crimp cover/Tape
Thick paper
(Underside paper tape) Chip resistor Square punchout hole
mount
WFEA2B
8.0±0.3 3.5±0.05 1.75±0.1
D
2
+0.1
φ1.5
Bulk case
Shutter
EIAJ ET-7201A compliant
Material
P
0
P
2
P
P
2
4.0±0.1 4.0±0.1 2.0±0.05
0
2
P
Slider
2
A
2
110±0.7
φD
B
1.95
2
2
+0.1
−0.05
P
2
(Units: mm)
2
+0.15
3.5
−0.05
T
2
Max. 1.1
12±0.1
0
36
−0.2
E
F
W
2
T
(Units: mm)
Resistors
!Makeup of the part number
3-digit or 4-digit IEC coding system
Nominal resistancePart No.
Packaging / Processing specifications Resistance tolerance Special part number
MCR18
Part No.
MCR18 EZH
Code Packaging
Paper tape
PZHI
Bulk case
!Dimensions
3.45
3.40
3.35
3.30
3.25
(mm)
3.20
3.15
LENGTH
3.10
3.05
3.00
2.95
0.1 1 10 100 1k 10k 100k 1M 10M
!
Electrical characteristics
8.0
6.0
4.0
(%)
2.0
0.0
−2.0
DC RESISTANCE
−4.0
−6.0
−8.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.4.2
SAMPLE SIZE : n=20pcs
MICROMETER
RESISTANCE
Fig.2 Dimensions (length)
JIS C 5201-1 4.5
SAMPLE SIZE : n=20pcs
20°C 65%RH
RESISTANCE
Fig.5 Resistance
(Ω)
(Ω)
Standard ordering
unit(pcs)
5,000
5,000
F ±1% ±5%J
Specify "J" for jumper also.
1.80
1.75
1.70
1.65
(mm)
1.60
1.55
WIDTH
1.50
1.45
1.40
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.4.2
SAMPLE SIZE : n=20pcs
MICROMETER
RESISTANCE
Fig.3 Dimensions (width)
900
700
500
300
100
−100
−300
−500
−700
TEMPERATURE COEFFICIENT (ppm/°C)
−900
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.8
SAMPLE SIZE : n=10pcs
25°C / −55°C
25°C / 125°C
RESISTANCE
Fig.6 Variation resistance with
temperature
(Ω)
(Ω)
10Ω or more (F class)
Blank
1Ω or more (J class)
Up to 10Ω (F class)
L
Up to 1Ω (J class)
0.75
0.70
0.65
0.60
(mm)
0.55
0.50
THICKNESS
0.45
0.40
0.35
0.1 1
Fig.4 Dimensions (thickness)
4.0
3.0
2.0
1.0
(%)
0.0
∆R/R
−1.0
−2.0
−3.0
−4.0
0.1 1 10 100 1k 10k 100k1M 10M
JIS C 5201-1 4.4.2
SAMPLE SIZE : n=20pcs
MICROMETER
100
10k 100k 1M
1k
10
RESISTANCE
JIS C 5201-1 4.13
SAMPLE SIZE : n=10pcs
RATED VOLTAGE×2.5TIMES : 2s
LIMITING ELEMENT VOLTAGE×2 : 400V
RESISTANCE
(Ω)
(Ω)
10M
Fig.7 Overload
Resistors
MCR18
2.0
1.5
(%)
1.0
0.5
0
−0.5
−1.0
RESISTANCE CHANGE
−1.5
−2.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.18
SAMPLE SIZE : n=10pcs
SOLDERING CONDITION : 260°C 10s
RESISTANCE
(Ω)
Fig.8 Resistance to soldering heat
4.0
3.0
(%)
2.0
1.0
0
−1.0
−2.0
RESISTANCE CHANGE
−3.0
−4.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.25.1
SAMPLE SIZE : n=10pcs
70°C 1,000h
OVERLOAD : THE RATED VOLTAGE
RESISTANCE
(Ω)
Fig.11 Endurance (at 70°C)
2.0
1.5
1.0
0.5
0.0
∆R/R (%)
−0.5
−1.0
−1.5
−2.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.19
SAMPLE SIZE : n=10pcs
−55°C / 125°C 5cyc
RESISTANCE
Fig.9 Rapid change of
temperature
4.0
3.0
(%)
2.0
1.0
0
−1.0
−2.0
RESISTANCE CHANGE
−3.0
−4.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.25.3
SAMPLE SIZE : n=10pcs
155°C WITH NO LOAD 1,000h
RESISTANCE
Fig.12 Endurance
(Ω)
(Ω)
4.0
3.0
(%)
2.0
1.0
0
−1.0
−2.0
RESISTANCE CHANGE
−3.0
−4.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.24
SAMPLE SIZE : n=10pcs
40°C 93%RH WITH NO LOAD 1,000h
RESISTANCE
(Ω)
Fig.10 Damp heat, steady state
2.0
1.5
1.0
0.5
0.0
∆R/R (%)
−0.5
−1.0
−1.5
−2.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.29
SAMPLE SIZE : n=10pcs
IPA, 5min.
RESISTANCE
(Ω)
Fig.13 Resistance to solvents
2.0
1.5
(%)
1.0
0.5
0
−0.5
−1.0
RESISTANCE CHANGE
−1.5
−2.0
0.1 1 10 100 1k 10k 100k 1M 10M
JIS C 5201-1 4.33
SAMPLE SIZE : n=10pcs
ENDURANCE WITH 90mm WIDTH
RESISTANCE
Fig.14 Bend strength of
the end face plating
(Ω)
Loading...