T PL IA N M CO *R oH S Features Applications ■ Thick film technology ■ Current sensing ■ Power rating of 0.25, 0.5 or 1 watt at 70 °C ■ Power supplies ■ Low resistance values available ■ Stepper motor drives ■ RoHS compliant* ■ Snubber resistor for flyback power supplies CRM0805/1206/2010 High Power Current Sense Chip Resistors Electrical Characteristics General Information Model CRM0805 0.25 W Characteristic Power Rating @ 70 °C Operating Temperature Range Derated to Zero Load at Maximum Working Voltage 47 mohms to 910 mohms 1 ohm to 1 megohm Insulation Resistance Resistance Range Resistance Tolerance Temperature Coefficient 47 mohms to 91 mohms (±1 % and ±5 %, E24 Series) 100 mohms to 910 mohms (±1 % and ±5 %, E24 Series) 1 ohm to 1 megohm (±1 %, E96 & E24 Series) Model CRM1206 0.5 W -55 °C to +155 °C +155 °C Model CRM2010 1W 551 mV 150 V 675 mV 954 mV 200 V 200 V >1000 megohms 47 mohms to 910 mohms (±1 % and ±5 %, E24 Series) 1 ohm to 1 megohm (±1 %, E96 & E24 Series) 0 ohm, 1 ohm to 1 megohm (±5 %, E24 Series) ±1 %, ±5 % ±100 ppm ±100 ppm ±100 ppm ±100 ppm ±100 ppm ±100 ppm ±100 ppm (1) ±100 ppm ±100 ppm ±200 ppm ±200 ppm ±200 ppm 4A 4A 6A 1 ohm to 1 megohm (±5 %, E24 Series) Zero Ohm Jumper <0.02 ohm (2) Maximum Rated Current Exceptions: (1) ±1 %, 1 ohm to 9.76 ohms: ±150 ppm (CRM0805) (2) Jumper (0 ohms): Temperature coefficient is not applicable. Bourns® CRM Series are thick film chip resistors with high power ratings making them suitable for different applications in power supply circuits including current sensing and current limiting. Characteristic Data ΔR Max. Test Load Life (1000 hours) Rated Voltage @ 70 °C (1.5 hrs. on, 0.5 hrs. off) 1 % Tolerance 5 % Tolerance <1% <3% Short Term Overload (5 X Rated Power for 5 sec.) 1 % Tolerance 5 % Tolerance <1% <2% Thermal Shock (5 Cycles: -55 °C/30 min.; +25 °C/2-3 min.; +155 °C/ 30 min.; +25 °C/2-3 min.) 1 % Tolerance 5 % Tolerance < 0.5 % <1% For Standard Values Used in Capacitors, Inductors and Resistors, click here. Product Dimensions L Model L W C D T CRM0805 2.00 ± 0.15 1.20 ± 0.15 0.40 ± 0.20 0.40 ± 0.20 0.50 ± 0.10 (0.079 ± 0.006) (0.047 ± 0.006) (0.016 ± 0.008) (0.016 ± 0.008) (0.020 ± 0.04) CRM1206 3.10 ± 0.15 1.60 ± 0.15 0.50 ± 0.25 0.50 ± 0.25 0.55 ± 0.10 (0.122 ± 0.006) (0.063 ± 0.006) (0.020 ± 0.010) (0.020 ± 0.010) (0.022 ± 0.004) CRM2010 5.00 ± 0.20 2.50 ± 0.20 0.60 ± 0.25 0.60 ± 0.25 0.60 ± 0.10 (0.197 ± 0.008) (0.098 ± 0.008) (0.024 ± 0.010) (0.024 ± 0.010) (0.024 ± 0.004) W T C D Recommended Solder Pad Layout Model A B L CRM0805 1.3 (0.051) 1.15 (0.045) 1.2 (0.047) CRM1206 1.8 (0.071) 1.3 (0.051) 2.1 (0.083) CRM2010 3.0 (0.118) 1.5 (0.059) 3.8 (0.149) DIMENSIONS: L B A Cu TRACE SENSING TRACE MM (INCHES) *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. CRM0805/1206/2010 High Power Current Sense Chip Resistors Soldering Profile Derating Curve 275 <1> Maximum of 20 seconds between 260 °C peak +255 °C and +260 °C Power Ratio (%) <1> 255 °C 225 190 °C 175 90 - 150 seconds Ramp Down 6 °C/second 150 °C 125 60 - 120 seconds 10 seconds minimum 100 -55 70 155 75 Ambient Temperature (°C) Ramp Up 3 °C/second maximum 25 0 50 100 150 Time (seconds) 200 250 300 Pulse Load Characteristics 1000 PEAK POWER (WATTS) Temperature (°C) 220 °C 100 10 CRM2010 CRM1206 1 0.1 0.0001 CRM0805 0.001 0.01 0.1 1 PULSE DURATION (SEC.) Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. CRM0805/1206/2010 High Power Current Sense Chip Resistors Packaging Dimensions (Conforms to EIA RS-481A) 4.0 ± 0.1 (.157 ± .004) 13.0 ± 1.0 (0.512 ± 0.039) DIA. 2.0 ± 0.05 (.079 ± .002) B A 180 +0/-3 (7.09 +0/-0.118) DIA. F 60.0 (2.362) MIN. DIA. W P0 1.75 ± 0.1 (.059 ± .004) 1.5 +0.1/-0 (.056 + .004/-0) Maximum 1 mm (.040) thick * Cumulative over 10 holes: ±0.2 mm 15.4 ± 2.0 (0.606 ± 0.079) 13.0 ± 1.0 (0.512 ± 0.039) Model A B F W CRM0805 2.40 ± 0.20 (0.094 ± 0.008) 1.65 ± 0.20 (0.065 ± 0.008) 3.50 ± 0.05 (0.138 ± 0.002) 8.00 ± 0.30 (0.315 ± 0.012) CRM1206 3.57 ± 0.20 (0.141 ± 0.008) 2.00 ± 0.20 (0.079 ± 0.008) 3.50 ± 0.05 (0.138 ± 0.002) 8.00 ± 0.30 (0.315 ± 0.012) CRM2010 5.50 ± 0.20 (0.217 ± 0.008) 2.80 ± 0.20 (0.110 ± 0.008) 5.50 ± 0.05 (0.217 ± 0.002) 12.00 ± 0.30 (0.472 ± 0.012) DIMENSIONS: MM (INCHES) Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 3312 - 2 mm SMDHigh Trimming Potentiometer CRM0805/1206/2010 Power Current Sense Chip Resistors How to Order CRM 2010 - F X - R100 E LF Model (CRM = Precision Chip Resistor) Size 0805 = 0805 Size 1206 = 1206 Size 2010 = 2010 Size Resistance Tolerance • F = ±1 %......... Use with “X” TCR code Exceptions: (CR0805) Use with “Z” TCR code for values from 1 ohm to 9.76 ohms • J = ±5 % ......... Use with “W” TCR code for values from 1 ohm through 1 megohm Use with “X” TCR code for values under 1 ohm Exceptions: Use with “/” TCR code for 0 ohm (Jumper) TCR (PPM/°C - See Electrical Characteristics chart) • W = ±200 PPM/°C • Z = ±150 PPM/°C • X = ±100 PPM/°C • / = Jumper Resistance Value • 1 % or 5 % Tolerance: R <1 ohm..............“R” represents decimal point followed by three signiﬁcant digits (example: R100 = 0.100 ohm) • 1% Tolerance: <100 ohms ...........“R” represents decimal point (example: 24R3 = 24.3 ohms) ≥100 ohms ...........First three digits are signiﬁcant, fourth digit represents number of zeros to follow (example: 8252 = 82.5K ohms) • 5% Tolerance: <10 ohms .............“R” represents decimal point (example: 4R7 = 4.7 ohms) ≥10 ohms .............First two digits are signiﬁcant, third digit represents number of zeros to follow (example: 474 = 470K ohms) 0 ohm Jumper ......“000” Packaging • E = 5,000 pieces on 180 mm (7 inch) reel - CRM0805, CRM1206 4,000 pieces on 180 mm (7 inch) reel - CRM2010 Termination • LF = Tin-plated (RoHS Compliant) REV. 05/15 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.

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