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.
!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
60
40
20
0
Specifications
0.25W (1 / 4W)
at 70
°
C
POWER LOAD (%)
−55
0
70
100
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: Rated voltage (V)
E= P×R
P: Rated power (W)
R: Nominal resistance (Ω)
Nominal resistance
Operating temperature
See Table 1.
−55
°
C
to
+155
°
C
Limiting element voltage
200V
MCR18
Resistors
Jumper type
Resistance
Rated current
Max. 50mΩ
2A
F (±1%)
Table 1
Resistance tolerance
Resistance range
(Ω)
Resistance temperature coefficient
(ppm /
°C)
Operating temperature
−55°
C
to
+155°
C
0.1
≤
R
<
0.15 (E24)
0.15
≤
R
<
10
(E24)
10
≤
R
≤
2.2M (E24,96)
400±200
±250
±100
400±200
±250
500±350
±500
±200
J (±5%)
0.1
≤
R
<
0.15 (E24)
0.15
≤
R
<
1
1.0
≤
R
<
2.2
2.2
≤
R
<
10
10
≤
R
≤
10M
(E24)
(E24)
(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
Resistance
Variation of resistance
with temperature
Overload
±
(2.0%+0.1Ω)
Guaranteed value
Resistor type
Jumper type
J :
±5%
F :
±1%
Max. 50mΩ
Test conditions (JIS C 5201-1)
JIS C 5201-1 4.5
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°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
See Table.1
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
±
(1.0%+0.05Ω)
Resistance to solvent
Max. 100mΩ
Max. 100mΩ
Max. 50mΩ
Bend strength of
the end face plating
Max. 50mΩ
±
(1.0%+0.05Ω)
Without mechanical damage such as breaks.
MCR18
Resistors
!External
dimensions
(Units : mm)
1
0.5±0.25
2
No.
1
Material
Resistive element (Oxide metal thick film)
Silver palladium thick film electrode
Nickel electrode
Sn/Pb or Sn electrode
Alumina substrate
Overcoating (glass)
3
2
3
0.5±0.25
0.55±0.1
3.2±0.15
5
4
4
5
6
6
!Packaging
Reel
Taping
P
0
P
2
P
2
φD
2
E
F
B
2
02
04
06
08
08
06
04
1.6±0.15
W
A
B
D
02
A
2
Heat crimp cover/Tape
Thick paper (Underside paper tape) Chip resistor Square punchout hole
I recently found a Terasic ED0 development board in the lab. It looks quite new. I have hardly used it, so I think I found a treasure in the lab :). However, there was no CD with the information, so I...
[b][font=宋体]Classic cases of minimalist design method[/font]4[/b][align=left] [/align][align=left][font=宋体]Case[/font]4.When receiving en=1, dout generates a high level pulse of 2 clock cycles after 1...
Classic software data filtering algorithm (C language program attached on the back page) Note: (the red lines in the image are all filtered) 1. Limiting filtering method (also known as program judgmen...
The newly bought engraving machine finally arrived, but I spent 5100 yuan. The materials are very solid, and the whole machine weighs 34KG. I tried it and it runs very smoothly. I haven't started engr...
DSP28335 burning program, besides CCS software, is there any third-party program download software tool? ?
You can use our uniflashhttps://processors.wiki.ti.com/index.php/Category:CCS_UniFlash. There...
According to foreign media reports, Ford Motor has applied to the U.S. Patent and Social Security Administration (USPTO) for a patent for a remote vehicle control system that may be used in future ...[Details]
1. Equipment Overview
Shell-and-tube heat exchangers are a common heat exchange device used in chemical evaporation and heating equipment. Currently, the tubesheets of shell-and-tube heat exch...[Details]
As the main model among new energy vehicles, pure electric vehicles have received strong support and encouragement from the country in recent years, and their development is changing with each pass...[Details]
The most significant feature of IPS panels is that both electrodes are located on the same surface, unlike other LCD panels, which have electrodes arranged on top and bottom surfaces in a three-dim...[Details]
Current Development Status of DVR Market
A DVR, or digital video recorder, uses a hard disk for recording, unlike traditional analog video recorders. It's often called a DVR because it's a com...[Details]
In mobile technology, sensors are the primary input for measured signals and form a component of a sensor system. They include sensitive and transducer elements connected to carriers and circuits. ...[Details]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
On August 20th, Tiantai Robotics Co., Ltd., along with strategic partners including Shandong Future Robotics Technology Co., Ltd., Shandong Future Data Technology Co., Ltd., and Gangzai Robotics Gr...[Details]
Since its invention in the mid-1940s, the microwave oven has evolved from a humble beginning to commercial use, entering homes in the 1960s and rapidly gaining popularity. Its basic functionality a...[Details]
Electric vehicles' 12V batteries don't rely on a generator to power them. Only gasoline-powered vehicles rely on the engine to drive a generator to generate electricity while driving, which is used...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
In the electronics manufacturing industry, surface mount technology (SMT) placement machines are core equipment for production lines. However, with many different models available on the market, ch...[Details]
1. Multi-channel DAC technology bottleneck
Currently,
the development of multi-channel DAC technology focuses on two core challenges.
First, industrial applications urgently ...[Details]
Reflow soldering is one of the most commonly used methods in electronics manufacturing, allowing for the soldering of large numbers of components in a relatively short time. However, any experience...[Details]
During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
FPGA/CPLD
京公网安备 11010802033920号
EEWORLD
