PRODUCTS
TYPE
Thick Film Chip Resistors
MCR18
Difference
< 3216(1206)size Comparative Specification >
Rohm Product
Product
Rev. M18R-01
OEM Product
MCR18 ERT series
China
MCR18 EZP series
Country of Origin
Dimension
Construction
Philippines
1 0 2
3.20±0.15
1 0 2
3.05±0.15
0.55±0.1
0.55±0.1
①
⑦
⑥
①
⑦
⑥
0.45±0.25
0.5±0.25
②
③
④
⑤
②
③
④
⑤
(ꢀunit : mm )
(ꢀunit : mm )
0.35±0.25
0.5±0.25
Resistive element
Resistive element
①
②
③
④
⑤
⑥
⑦
Resistive Layer
Silver thick film electrode
Silver thick film electrode
Nickel plating
Silver thick film electrode
Nickel-Chrome electrode
Nickel plating
Top Inner Electrode
Side Electrode
Terminal Inner Electrode
Terminal Electrode
Substrate
Tin plating
Tin plating
Alumina
Alumina
Over coating (Resin)
Over coating (Resin)
Protect Layer
Marking
J class (±5.0%) : 3 digits marking
F class (±1.0%) : 4 digits marking
First two or three digits are significant figure ,
and final digit is multiplier. The R is used as a decimal point.
Yellowish white marking or other appropriate marking
J class (±5.0%) : 3 digits marking
F class (±1.0%) : 4 digits marking
First two or three digits are significant figure ,
and final digit is multiplier. The R is used as a decimal point.
Yellowish white marking or other appropriate marking
Marking Method
Marking Color
Package
Rating
Material
Pitch
paper
4mm
paper
4mm
Quantity
5,000 pcs
5,000 pcs
Rated Power
0.25 W at 70 ℃
200 V
0.25 W at 70 ℃
200 V
Limiting Element Voltage
Operating Temperature Range
Resistance Tolerance
-55℃ / +155℃
-55℃ / +155℃
F級
( ±1.0% )
10Ω ≦ R.V. < 1 MΩ : ±100 (E24 , E96)
1 MΩ ≦ R.V. ≦ 2.2 MΩ : ±100 (E24 , E96)
10Ω ≦ R.V. < 1 MΩ : ±100 (E24 , E96)
1 MΩ ≦ R.V. ≦ 2.2 MΩ : ±200 (E24 , E96)
J class
( ±5.0% )
1Ω ≦ R.V. < 10Ω : ±400
ꢀ
(E24)
10Ω ≦ R.V. ≦ 10 MΩ : ±200 (E24)
1Ω ≦ R.V. < 10Ω : ±400
10Ω ≦ R.V. ≦ 10 MΩ : ±200 (E24)
ꢀ
(E24)
Jumper Type
Resistance
Rated Current
max 50 mΩ
2 A
max 50 mΩ
2 A
Operating Temperature Range
-55℃ / +155℃
-55℃ / +155℃
Characteristics , Reliability
Item
Resistor Type
Jumper Type
max. 50 mΩ
Resistor Type
Jumper Type
max. 50 mΩ
Test Conditions
Variation of Resistance
with Temperature
reffer to Resistance Tolerance
reffer to Resistance Tolerance
+25℃ / +125℃
Rated voltage (Current) x 2.5,2s
Limiting Element Voltagex2 : 400V
Overload
±( 2.0 % + 0.1Ω)
±( 2.0 % + 0.1Ω)
A new uniform coating of minimum of 95% of the surface
being immersedand no soldering damage.
A new uniform coating of minimum of 95% of the surface
being immersedand no soldering damage.
Soldering condition : 235±5℃
Duration of immersion : 2.0±0.5s
Solderability
±( 1.0 % + 0.05Ω)
max. 50 mΩ
±( 1.0 % + 0.05Ω)
max. 50 mΩ
Resistance to
Soldering Heat
Soldering condition : 260±5℃
Duration of immersion : 10±1s
No remarkable abnormality on the appearance.
No remarkable abnormality on the appearance.
Rapid Change of
Temperature
-55℃ / +125℃
5 cycle
±( 1.0 % + 0.05Ω)
±( 3.0 % + 0.1Ω)
max. 50ꢀmΩ
max. 100 mΩ
±( 1.0 % + 0.05Ω)
±( 3.0 % + 0.1Ω)
max. 50ꢀmΩ
max. 100 mΩ
Damp Heat,
Steady State
40℃、93%RH
1,000～1,048h
Rated voltage(current) 70℃
1.5h-on/0.5h-off
1,000～1,048h
Endurance
at 70oC
±( 3.0 % + 0.1Ω)
±( 3.0 % + 0.1Ω)
max. 100 mΩ
max. 100 mΩ
±( 3.0 % + 0.1Ω)
±( 3.0 % + 0.1Ω)
max. 100 mΩ
max. 100 mΩ
155℃
1,000～1,048h
Endurance
23±5℃、
Immersion 5±0.5min
Solvent: 2-propanol
Resistance
to Solvent
±( 1.0 % + 0.05Ω)
±( 1.0 % + 0.05Ω)
max. 50ꢀmΩ
max. 50ꢀmΩ
±( 1.0 % + 0.05Ω)
±( 1.0 % + 0.05Ω)
max. 50ꢀmΩ
max. 50ꢀmΩ
Bond Strength of distance among support points:90mm
The End Face Plating amount of bend : 3mm
Without mechanical damage such as breaks.
11 / Nov /2011
M18R-01E
Withꢀoutꢀmeꢀchanical damage such as breaks.
SPECIFICATION No.
Date
Design
Check
Approval
ID - 1928
Rev No.
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