Current Sensing Resistors, Metal Plate Type Current Sensing Resistors, Metal Plate Type Type: ERJ MS4, MS6 Features ● Ideal for current sensing solution case size with high power ● Metal plate bonding technology. Excellent long term stability ● Outer Resin with high heat dissipation. Wide temperature range (-65 °C to +170 °C) ● AEC-Q200 qualified ● RoHS compliant ● Small ■ As for Packaging Methods, Soldering Conditions and Safety Precautions, Please see Data Files Explanation of Part Numbers 1 2 3 4 5 6 7 8 9 10 11 12 E R J M S 4 S F 2 M 0 U Product Code Metal Plate Chip Resistors Type Code Code Inch size Electrode type Standard S4S 2512 Narrow S4H 2512 Standard S6S 2526 Resistance Tolerance Code Tolerance ±1 % F Resistance Value Shown by 3 digits or letters.Decimal point is expressed by M as 2.0 mΩ=2M0, 0.5 mΩ=M50, 10.0 mΩ=10M Code U Packaging Methods Packaging Embossed Carrier Taping 4 mm pitch, 2,000 pcs. Embossed Carrier Taping 8 mm pitch, 1,000 pcs. Part No. ERJMS4 ERJMS6 Ratings Part No. (inch size) Power Rating at 70 °C (W) Resistance Range (mΩ) Resistance Tolerance (%) T.C.R. (×10–6/°C) ERJMS4S (2512) 3 1, 2, 3, 4 F : ±1 ±75 –65 to +170 130 ERJMS4H (2512) 3 2 5, 6 7, 8, 9, 10 F : ±1 F : ±1 ±75 ±75 –65 to +170 –65 to +170 130 100 ERJMS6S (2526) 5 0.5, 1, 2 F : ±1 ±75 –65 to +170 130 Category Terminal temp. Temperature Range upper limit (°C) (°C) ✽ Please contact us when resistors of irregular series are needed. <Supplemented> In the case of the temperature measurement of the terminal portion of the resistor, Please perform under the following conditions. 1) Tarminal temperature measurement, please apply the temperature of the higher of either the left or right electrode upper surface of the resistor. 2) Please measure the temperature of the resistor in the land pattern printed of circuit board and plan to use by real conditions. 120 100 °C 100 Rated Load (%) Power Derating Curve If the terminal temperature of the resistor is more than terminal temperature upper limit value of the rated table, please reduce the rated power according to the Power Derating Curve shown in the figure on the right. 130 °C 80 60 ERJMS4H (7 to 10 mΩ) 40 20 0 –80 170 °C –40 0 40 80 120 160 200 Terminal Temperature (°C) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Mar. 2015 Current Sensing Resistors, Metal Plate Type Construction Protective Film Surface Treatment (Ni/Sn) Electrode (Metal) Resistive Element (Metal Plate) Dimensions in mm (not to scale), Recommended Land Pattern ● ERJMS4S ● ERJMS4H ● ERJMS6S t t t W W W A A L A L L c b b b a c a c a Land Pattern Part No. (inch size) ERJMS4S (2512) ERJMS4H (2512) ERJMS6S (2526) Dimension (mm) Recommended Land Pattern (mm) L W A t a b c Mass (Weight) (g/1000 pcs.) 6.40±0.25 3.20±0.25 2.20±0.25 1.20±0.15 2.7 3.4 2.0 120 6.40±0.25 3.20±0.25 1.25±0.25 1.20±0.15 1.7 3.4 4.0 115 6.40±0.25 6.80±0.25 2.20±0.25 1.20±0.15 2.7 7.0 2.0 260 Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Mar. 2015 Current Sensing Resistors, Metal Plate Type Long-term stability 1 Change of Resistance (%) Change of Resistance (%) Typical Temperature dependence of electrical resistance 0.5 0 –0.5 –1 –80 –60 –40 –20 0 1 ERJMS4SF2M0U 140 °C 0.5 0 –0.5 –1 0 20 40 60 80 100 120 140 160 180 Temperature (°C) 2000 4000 6000 Test Time (hrs) 8000 Maximum pulse energy respectively pulse power for continuous operation ● ERJMS4 type 1000 100 100 10 1 ERJMS4H 5 mΩ Power (W) Pulse Energy (J) ERJMS4S 1 mΩ 10 0.1 1 0.1 0.01 ERJMS4H 10 mΩ 0.01 0.001 0.001 0.0001 0.001 0.01 0.1 1 0.0001 10 Pulse width (s) Referance Data Condition : Room Temperature, OFF : 10 s, 1000 cycle, Wave form : Square Change of Resistance=±1 % ● ERJMS6 type 100 10000 ERJMS6S 0.5 mΩ ERJMS6S 1 mΩ 10 1 100 10 0.1 1 0.01 0.1 Power (W) Pulse Energy (J) 1000 0.001 0.01 0.0001 0.0001 0.001 0.01 Pulse width (s) 0.1 1 Referance Data Condition : Room Temperature, OFF : 10 s, 1000 cycle, Wave form : Square Change of Resistance=±1 % Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Mar. 2015 Current Sensing Resistors, Metal Plate Type Performance (AEC-Q200) ● ERJMS4 type Test Item Thermal Shock Overload Solderability Resistance to Solvents Low Temperature Storage and Operation Resistance to Soldering Heat Moisture Resistance Shock Vibration, High Frequency Life Storage Life at Elevated Temperature High Temperature Characteristics Frequency Characteristics ● ERJMS6 Test Condition Specification Typical value ±0.5 % 0.05 % MIL-STD-202 method 107 (-55 °C / +125 °C, 25 cycle) ±0.5 % 0.02 % MIL-R-26E (5 x rated power, 5 sec) > 95% coverage > 95% coverage MIL-STD-202 method 208 No damage No damage MIL-STD-202 method 215, 2.1a, 2.1d ±0.5 % 0.03 % MIL-STD-26E (-65 °C, 24 h) ±0.5 % 0.10 % MIL-STD-202 method 210 (260 °C, 10s) ±0.5 % 0.20 % MIL-STD-202 method 106 ±0.5 % 0.10 % MIL-STD-202 method 213-A ±0.5 % 0.05 % MIL-STD-202 method 204-B ±1 % 0.30 % MIL-STD-26E (Rated Power, 1.5 h-ON, 0.5 h-OFF, 2000 h) ±1 % 0.30 % MIL-STD-202 method 108-F (170 °C, 2000 h) ±0.5 % 0.05 % 140 °C, 2000 h < 2 nH < 2 nH Inductance type Test Item Thermal Shock Overload Solderability Resistance to Solvents Low Temperature Storage and Operation Resistance to Soldering Heat Moisture Resistance Shock Vibration, High Frequency Life Storage Life at Elevated Temperature High Temperature Characteristics Frequency Characteristics Test Condition Specification Typical value ±0.5 % 0.10 % MIL-STD-202 method 107 (-55 °C / +125 °C, 25 cycle) ±0.5 % 0.02 % MIL-R-26E (5 x rated power, 5 sec) > 95% coverage > 95% coverage MIL-STD-202 method 208 No damage No damage MIL-STD-202 method 215, 2.1a, 2.1d ±0.5 % 0.03 % MIL-STD-26E (-65 °C, 24 h) ±0.5 % 0.10 % MIL-STD-202 method 210 (260 °C, 10s) ±0.5 % 0.10 % MIL-STD-202 method 106 ±0.5 % 0.10 % MIL-STD-202 method 213-A ±0.5 % 0.05 % MIL-STD-202 method 204-B ±1 % 0.20 % MIL-STD-26E (Rated Power, 1.5 h-ON, 0.5 h-OFF, 2000 h) ±1 % 0.30 % MIL-STD-202 method 108-F (170 °C, 2000 h) ±0.5 % 0.05 % 140 °C, 2000 h < 2 nH < 2 nH Inductance Temperature Rise ● ERJMS6SF2M0U 100 100 90 90 80 80 Temperature Rise (°C) Temperature Rise (°C) ● ERJMS4HF5M0U 70 60 50 40 30 20 10 1 2 70 60 <Condition> Base material : FR-4 (t1.6mm) Copper Thickness : 70 µm, Two layer 50 40 30 20 Resistor 10 0 1 2 0 0 1 2 Power (W) 3 Soldering PWB 0 1 2 3 Power (W) 4 5 Sense terminal-Layout Land Sense terminal Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 01 Mar. 2015