Low ohm Power Metal Strip resistors from Token Electronics offer a wide range of high-power current sensing applications including power DC-DC converter and charger, management of NB, MB and monitor, test & measurement instruments, linear power supplies and switching, automotive, shunts and power amplifiers.
(LRM) Design for applications that require a wide range power handling from 1/8W up to 3W and low resistance values from 1mΩ to 100mΩ and come with a range of advantages including a wide temperature range and a varied choice of wide range package sizes 0805, 1206, 2010, and 2512 with high current capability.
Token (LRM) is aiming for very high power-to-footprint size ratio, excellent frequency response and very low inductance in a solid metal nickel-chrome or manganese-copper allow resistive element with Low TCR ±75PPM/°C. Also, ideal for all types of voltage division, current sensing and pulse applications.
(LRM) series as current divider and current detection chip products can be customized according to customers'needs. For special resistance value and latest product information, contact us with your specific needs.
Downloads Complete Specification PDF Metal Strip Low Ohm Chip Power Resistor (LRM).
Power Metal Strip Chips Construction & Dimensions (LRM)
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Part No. | Resistance (mΩ) | Material | L (mm) | W (mm) | T (mm) | D (mm) | Weight(g) /1000pcs |
LRM05*TE****M | 5, 9, 10, 20 | MnCu | 2.00±0.10 | 1.25±0.10 | 0.60±0.20 | 0.40±0.20 | 15.00 |
LRM06*TFR001M | 1 | MnCu | 3.20±0.20 | 1.60±0.20 | 0.75±0.20 | 1.10±0.30 | 18.00 |
LRM06*T*****M | 2 ~ 30 | MnCu | 3.20±0.20 | 1.60±0.20 | 0.60±0.20 | 0.50±0.30 | 18.00 |
LRM10*T***** | 5, 6, 10, 15, 20 | NiCu | 5.00±0.20 | 2.50±0.20 | 0.60±0.20 | 0.60±0.30 | 40.50 |
LRM12*T*****M | 0.5, 0.75 | MnCu | 6.40±0.20 | 3.20±0.20 | 0.60±0.20 | 2.60±0.20 | 90.90 |
LRM12*T*****M | 5, 10, 20, 25, 30, 40, 50 | MnCu | 6.40±0.20 | 3.20±0.20 | 0.60±0.20 | 0.90±0.20 | 90.90 |
LRM12*T*****M | 4 ~ 50 | NiCu | 6.40±0.20 | 3.20±0.20 | 0.60±0.20 | 0.90±0.20 | 90.90 |
LRM12*T***** | 1, 1.5, 2, 3 | NiCu | 6.40±0.20 | 3.20±0.20 | 0.60±0.20 | 2.0±0.20 | 90.90 |
LRM12*T***** | 2, 3, 4 | NiCu | 6.40±0.20 | 3.20±0.20 | 0.70±0.20 | 2.0±0.20 | 90.90 |
LRM12*T***** | 10 ~ 100 | NiCu | 6.40±0.20 | 3.20±0.20 | 0.70±0.20 | 0.90±0.20 | 90.90 |
Type | Power Rating at 70°C | Operating Temp. Range | Resistance Tolerance (±%) | Resistance (mΩ) | TCR (±PPM/°C) |
LRM05 (0805) | 1/8W, 1/4W, 1/2W | -55°C ~ +170°C | ±1%, ±5% | 5, 9,10, 20 | ±100 |
LRM06 (1206) | 1/4W, 1/2W, 1W | 1 | ±200 | ||
2, 3, 4, 5, 6, 7, 8, 9,10 | ±100 | ||||
12, 14, 15, 20, 22, 25, 30 | ±75 | ||||
LRM12 (2512) | 1W, 2W | 0.5, 0.75 | ±200 | ||
5, 10 | ±100 | ||||
1W | 20, 25, 30, 40, 50 | ±75 |
Type | Power Rating at 70°C | Operating Temp. Range | Resistance Tolerance (±%) | Resistance (mΩ) | TCR (±PPM/°C) |
LRM10 (2010) | 1/2W, 3/4W, 1W, 1.5W | -55°C ~ +170°C | ±1%, ±5% | 5, 6, 10 | ±100 |
15, 20 | ±75 | ||||
LRM12 (2512) | 1W, 2W | 1, 1.5 | ±275 | ||
2, 3, 4, 5, 6, 7, 8,10 | ±100 | ||||
1W | 12, 15, 18, 20, 25, 30, 33, 35, 40, 50 | ±75 | |||
1W, 2W, 3W | 2, 3, 4, 10, 12, 15, 18, 20, 25, 30, 39,40, 50, 60, 70, 80, 100 | ±75 |
(LRM)Soldering Condition (Reflow soldering only)(LRM) Power Derating Curve |
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Type | A ±0.2(mm) | B ±0.2(mm) | C ±0.2(mm) | |
LRM05 | 1.20 | 1.15 | 1.40 | |
LRM06 (1mΩ) | 1.00 | 2.30 | 1.80 | |
LRM06 (2mΩ ~ 30mΩ) | 1.60 | 1.70 | 1.80 | |
LRM10 | 3.50 | 1.50 | 3.40 | |
LRM12 (0.5mΩ ~ 3mΩ) | 1.30 | 3.10 | 4.00 | |
LRM12 (4mΩ ~ 100mΩ) | 4.10 | 2.10 | 4.00 |
Item | Requirement | Test Method |
Thermal Shock |
0805, 2010: ±0.5%
1206, 2512: ±1% |
JIS-C-5201-1 4.19 IEC-60115-1 4.19 -55°C ~ 155°C, 300 cycles, 15min per extreme condition |
Short Time Overload |
0805, 2010, 2512: ±0.5%
1206: ±1% |
IEC60115-1 4.13 JIS-C-5201-1 4.13 5*rated power for 5 seconds |
Low Temperature Storage |
0805, 2010, 2512: ±0.5%
1206: ±1% |
IEC-60115-1 4.23.4 JIS-C-5201-1 4.23.4 at-55°C for 1000 hrs |
Damp Heat no Load |
2512 0.5mΩ, 0.75mΩ, 1206: ±0.5%
Other sizes: ±1.0% |
IEC60115-1 4.24.2.1a JIS-C-5201-1 4.24.2.1a 85°C, 85%RH, 1000 hrs |
Bending Stength |
±1%
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IEC-60115-1 4.33 JIS-C-5201-1 4.33 Bending width 2mm once for 5 seconds |
Endurance |
±1%
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IEC60115-1 4.25 JIS-C-5201-1 4.25.1 70±2°C, RCWV for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF” |
Dry Heat |
±1%
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IEC60115-1 4.23.2 JIS-C-5201-1 4.23.2 at +170°C for 1000 hrs |
Resistance to Soldering Heat |
±0.5%
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IEC-60115-1 4.18 JIS-C-5201-1 4.18 0805, 2010: 260±5°C for 10 seconds 1206, 2512: 260±5°C for 20 seconds |
Insulation Resistance |
>100MΩ
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IEC60115-1 4.6 JIS-C-5201-1 4.13 100V DC for 1 minute |
Solderability |
95% min coverage
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IEC-60115-1 4.17 JIS-C-5201-1 4.17 245±5°C for 3 seconds |
Temperature Coefficient of Resistance (T.C.R.) |
As Spec.
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IEC60115-1 4.8 JIS-C-5201-1 4.8 -55°C ~+125°C. (25°C is the reference temperature) |
Reel Dimensions |
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Type | Packaging Quantity | Tape Width | Reel Diameter | ΦA (mm) | ΦB (mm) | ΦC (mm) | W (mm) | T (mm) |
LRM05 | Paper 5,000 pcs | 8 mm | 7 inch | 178.0±2.0 | 60.0±1.0 | 13.0±1.0 | 9.0.0±1.0 | 11.4±1.0 |
LRM06 | Paper 5,000 pcs | 8 mm | 7 inch | 178.0±2.0 | 60.0±1.0 | 13.0±1.0 | 9.0.0±1.0 | 11.5±1.0 |
LRM10 | Embossed 4,000 pcs | 12 mm | 7 inch | 178.0±2.0 | 60.0±1.0 | 13.0±1.0 | 13.0±1.0 | 15.5±1.0 |
LRM12 | Embossed 4,000 pcs | 12 mm | 7 inch | 180.0+0/-3 | 60.0±1.0 | 13.0±1.0 | 13.0±1.0 | 15.4±2.0 |
(LRM) Paper Tape Specifications |
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Type | A (mm) | B (mm) | W (mm) | E (mm) | F (mm) | P0 (mm) | P1 (mm) | P2 (mm) | ΦD0 (mm) | T | ||
LRM05 | 1.60±0.15 | 2.40±0.20 | 8.00±0.20 | 1.75±0.10 | 3.50±0.05 | 4.00±0.10 | 4.00±0.10 | 2.00±0.05 | 1.50+0.1/-0 | 0.84±0.10 | ||
LRM06 | 2.00±0.15 | 3.60±0.20 | 8.00±0.20 | 1.75±0.10 | 3.50±0.05 | 4.00±0.10 | 4.00±0.10 | 2.00±0.05 | 1.50+0.1/-0 | 0.84±0.10 |
(LRM) Emboss Plastic Tape Specifications |
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Type | A (mm) | B (mm) | W (mm) | E (mm) | F (mm) | P0 (mm) | P1 (mm) | P2 (mm) | ΦD0 (mm) | ΦD1 (mm) | T | |
LRM10 | 2.80±0.20 | 5.30±0.20 | 12.0±0.20 | 1.75±0.10 | 5.5±0.05 | 4.00±0.10 | 4.00±0.10 | 2.00±0.05 | 1.50+0.1, -0 | 1.50±0.25 | 0.85±0.15 | |
LRM12 | 3.60±0.20 | 6.90±0.20 | 12.0±0.30 | 1.75±0.10 | 5.5±0.05 | 4.00±0.10 | 4.00±0.10 | 2.00±0.05 | 1.50+0.1, -0 | 1.50±0.25 | 0.85±0.15 | |
LRM12 | 3.60±0.20 | 6.90±0.20 | 12.0±0.30 | 1.75±0.10 | 5.5±0.05 | 4.00±0.10 | 4.00±0.10 | 2.00±0.05 | 1.50+0.1, -0 | 1.50±0.25 | 1.20±0.15 |
LRM | 12 | F | TR | D | S | R050 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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