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Featured Products
Low Ohmic High Power Chip Resistors
(Wide Terminal Type)
LTR Series
The LTR series utilizes a wide electrode configuration and proprietary thermal design for
increased reliability and power handling capability. As a result, heat dissipation and solder
joint strength are improved, making them ideal for current detection circuits in a wide range
of applications, including automotive systems exposed to thermal stress (i.e. temperature
cycling).
4x smaller
than our
MCR series
High Rated
Power
High
junction
strength
Optimized
for large
current
detection
Proprietary thermal design improves rated power
Functions
Size
(mm[inch])
MCR Series
(Conventional Type)
3216
[1206]
6432
[2512]
0.25W
Applications
4x the rated power 1W
1.0W
1/4th*the size
‡ Current detection in automotive
systems, power supplies, and more
2W
*At the same rated power
Wide terminal configuration utilized for
greater reliability
The electrodes were configured
at the wider sides, reducing
mechanical stress at the joints.
The result is improved joint
reliability against temperature
changes.
LTR Series
(Wide Terminal Type)
Wide terminal design
provides superior strength
against temperature cycling
Distance between
electrodes
MCR Series
(Conventional Type)
LTR Series
(Wide Electrode Type)
Long
Short
Significant
Effects from board
expansion/contraction mechanical stress
at the joint
Joint reliability
‡Motor control circuits
‡Battery protection circuits
‡LED lighting
‡Audio
Reduced
mechanical stress
at the joint
‡Industrial equipment
ż
Low Ohmic Series
Part No.
Size Code
Rated Power
(70°C)
Resistance Tolerance
LTR10
2012
1/2W
(0.5W)
J (±5%)
F (±1%)
J (±5%)
LTR18
3216
1W
F (±1%)
J (±5%)
LTR100
6432
2W
F (±1%)
Temperature Coefficient
of Resistance (ppm/°C)
Resistance Range
±150
PȍWRȍ(6HULHV
0-300
0-200
0-150
±100
0-300
0-200
±200
0-300
0-200
0-150
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
PȍWRPȍ(6HULHV
Operating Temperature
Range (°C)
-55 to +155
: Under development
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Part No.
LTR10
LTR18
LTR50
LTR100
Size Code
2012
3216
5025
6432
Rated Power
(70°C)
Max. Element
Voltage (V)
1/4W
(0.25W)
150
0.75W
200
1W
2W
200
200
Resistance Tolerance
Temperature Coefficient
of Resistance (ppm/°C)
J (±5%)
F (±1%)
D (±0.5%)
J (±5%)
F (±1%)
D (±0.5%)
J (±5%)
F (±1%)
D (±0.5%)
J (±5%)
F (±1%)
D (±0.5%)
±200
±100
±100
±200
±100
±100
±200
±100
±100
±200
±100
±100
Resistance Range
Operating Temperature
Range (°C)
ȍWR0ȍ(6HULHV
ȍWR0ȍ(6HULHV
ȍWR0ȍ( Series)
ȍWR0ȍ(6HULHV
ȍWR0ȍ(6HULHV
ȍWR0ȍ(6HULHV
ȍWR0ȍ(6HULHV
ȍWR0ȍ(6HULHV
-55 to +155
ROHM Low Resistance Development Map
5
PSR Series
4
Ultra Metal High
Low
Resistance Plate Power
Under
Development
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GMR Series
3 to 5W
PїWRPї
Rated Power :
Low Metal High
Resistance Plate Power
‡ Automotive
(36EDWWHU\PRQLWRULQJXQLWHWF
2 to 5W
PїWRPї
‡Energy-related sets
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※3W product is under development.
3
‡Large appliances
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2
Ultra Metal Wide
Low
Resistance Plate Electrode
Ultra Metal
Low
Resistance Plate
PML Series
Low Thick Wide
Resistance Film Electrode
LTR Series
PMR Series
1
Low Thick Reverse
Resistance Film Mount
UCR Series
Low Thick
Resistance Film
MCR
Series
0.1m
1m
10m
100m
1
10
Resistanceї
ROHM Low Ohmic Resistor Lineup
Rated
Power
(W)
5
2
1.5
UCR
LTR MCR
Thick Film
5HVLVWDQFHї
0.1m
0.2m
4
3
Metal Strip
PSR GMR PMR PML
3DUW1RPP>LQFK@
1m
PSR500 / 15×7.75 [5931]
0.3m
0.2m
10m
2m
PSR400 / 10×5.2 [3921]
1
GMR320 / 7142 [2817]
200m
220m
10m
GMR100 / 6432 [2512]
220m
GMR50 / 5025 [2010]
220m
10
3m
3m
PSR100 / 6432 [2512]
PMR100 / 6432 [2512]
1m
PML100 / 6432 [2512] 1m
0.5m
100m
10m
10m 10m
10m
2.2m
LTR100 / 6432 [2512]
91m
100m
LTR100 / 6432 [2512]
910m
PML50 / 5025 [2010]2.2m
1m
PMR18 / 3216 [1206]
PMR25 / 3225 [1210] 1m
1
10m 10m
LTR18 / 3216 [1206]
1
5m
1m
PMR50 / 5025 [2010]
10m
47m
MCR100 / 6432 [2512]
9.1
47m
LTR10 / 2012 [0805]
9.1
47m
MCR25 / 3225 [1210]
9.1
47m
MCR50 / 5025 [2010]
9.1
0.5m PML18 / 3216 [1206] 2.5m
0.66
PML10 / 2012 [0805] 1m
2.5m
2m
PMR10 / 2012 [0805]
10m
UCR18 / 3216 [1206]
11m
1/2
1/3
1/4
1/5
20m
100m
UCR03 / 1608 [0603]
200m
47m
MCR10 / 2012 [0805]
9.1
47m
MCR18 / 3216 [1206]
9.1
PMR01 / 1005[0402] 10m
1/8
1/10
UCR10 / 2012 [0805]
11m
PMR03 / 1608[0603] 10m
100m
220m UCR03 / 1608 [0603] 910m
68m
PMR006 / 0603[0201]
10m
UCR01 / 1005 [0402]
100m
UCR006 / 0603 [0201]
910m
910m
MCR03 / 1608 [0603] 1
9.1
1/16
MCR01 / 1005 [0402] 1
9.1
1/20
MCR006 / 0603 [0201] 1
9.1
Under Development: Please note that for models under development, specifications are subject to change without notice. Contact us for more information.
The contents specified in this document are correct as of October 1st, 2014.
[O_016] Catalog No.56O6728E-B 10.2014 ROHM © PDF
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