CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Features: * * * * * * Resistive Product Solutions 0402 to 2512 & 1225 sizes available Power ratings to 3W Low inductance - less than 0.2nH typically RoHS compliant Non-standard resistance values available 2010 and 2512 sizes available with narrow terminations (CSRN) Electrical Specifications Old Pkg Code Power Rating (Watts) @ 70C Dielectric Withstanding Voltage Resistance Temperature Coefficient CSR0402 CSR0603 CSR0805 CSR1206 1/8S 1/8 1/4 1/2 0.125W 0.125W 0.25W 0.5W 200V 200V 200V 200V CSR1210 - 0.5W 200V CSRN0815 1S 1W 200V CSR0830 - 2W 200V CSR2010 CSRN2010 CSR2512 CSRN2512 1 1 2 2 1W 1W 2W 2W 200V 200V 200V 200V CSR1225 3 3W 200V 200 ppm/C 300 ppm/C 200 ppm/C 100 ppm/C (1) 600 ppm/C 400 ppm/C 300 ppm/C 200 ppm/C 300 ppm/C 150 ppm/C 300 ppm/C 200 ppm/C 150 ppm/C 100 ppm/C (1) 250 ppm/C 200 ppm/C 200 ppm/C 200 ppm/c 100 ppm/C Type / Code Ohmic Range () and Tolerance 1% 2%, 5% 0.051 0.02 0.02 0.01 0.01 0.021 0.051 0.1 0.01 0.02 - 1 1 1 1 0.02 0.05 0.099 1 0.019 0.5 0.005 0.011 0.01 0.01 0.01 0.01 0.003 0.021 - 0.01 0.35 1 1 1 1 0.02 8 0.051 0.02 0.02 0.01 0.01 0.021 0.051 0.1 0.01 0.02 0.001 0.005 0.011 0.01 0.01 0.01 0.01 0.003 0.021 - 1 1 1 1 0.02 0.05 0.099 1 0.019 0.5 0.004 0.01 0.35 1 1 1 1 0.02 8 (1) Contact Factory for TCR below 50mOhm Please refer to the High Power Resistor Application Note (page 6) for more information on designing and implementing high power resistor types. Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 1 www.seielect.com marketing@seielect.com CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Resistive Product Solutions Mechanical Specifications Type / Code L Body Length W Body Width H Body Height a Top Termination b Bottom Termination CSR0402 0.039 0.002 1.00 0.05 0.020 0.002 0.50 0.05 0.013 0.004 0.32 0.10 0.010 0.004 0.25 0.10 0.008 0.004 0.20 0.10 inches CSR0603 0.063 0.004 1.60 0.10 0.031 0.004 0.80 0.10 0.018 0.004 0.45 0.10 0.012 0.008 0.30 0.20 0.012 0.008 0.30 0.20 inches CSR0805 0.079 0.006 2.00 0.15 0.049 0.006 1.25 0.15 0.022 0.004 0.55 0.10 0.012 0.008 0.30 0.20 0.016 0.010 0.40 0.25 inches CSR1206 0.120 0.006 3.05 0.15 0.061 0.006 1.55 0.15 0.022 0.004 0.55 0.10 0.020 0.012 0.50 0.30 0.016 0.010 0.40 0.25 inches Unit mm mm mm mm CSR1210 0.122 0.004 3.10 0.10 0.102 0.006 2.60 0.15 0.022 0.004 0.55 0.10 0.020 0.012 0.50 0.30 0.020 0.010 0.50 0.25 inches CSRN0815 0.079 0.008 2.00 0.20 0.148 0.008 3.75 0.20 0.024 0.004 0.60 0.10 0.016 0.008 0.40 0.20 0.016 0.008 0.40 0.20 inches mm mm CSR0830 0.079 0.008 2.00 0.20 0.295 0.012 7.50 0.30 0.024 0.004 0.60 0.10 0.016 0.008 0.40 0.20 0.016 0.008 0.40 0.20 inches CSR2010 0.197 0.008 5.00 0.20 0.100 0.008 2.54 0.20 0.020 0.006 0.50 0.15 0.068 0.006 1.72 0.15 0.067 0.006 1.70 0.15 inches CSRN2010 0.197 0.008 5.00 0.20 0.096 0.006 2.45 0.15 0.024 0.006 0.60 0.15 0.024 0.012 0.60 0.30 0.020 0.010 0.50 0.25 inches CSR2512 0.252 0.008 6.40 0.20 0.126 0.008 3.20 0.20 0.020 0.006 0.50 0.15 0.075 0.006 1.90 0.15 0.075 0.006 1.90 0.15 inches CSRN2512 0.250 0.008 6.35 0.20 0.124 0.006 3.15 0.15 0.024 0.004 0.60 0.10 0.024 0.012 0.60 0.30 0.022 0.010 0.55 0.25 inches 0.022 0.010 0.55 0.25 inches CSR1225 0.122 0.006 3.10 0.15 0.248 0.006 6.30 0.15 Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 0.035 0.006 0.90 0.15 2 0.024 0.012 0.60 0.30 mm mm mm mm mm mm www.seielect.com marketing@seielect.com CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Resistive Product Solutions Solder Pad Dimensions Type / Code A B C Unit CSR0402 0.020 0.50 0.020 0.50 0.024 0.008 0.60 0.20 inches mm CSR0603 0.031 0.80 0.039 1.00 0.035 0.008 0.90 0.20 inches mm CSR0805 0.039 1.00 0.039 1.00 0.053 0.008 1.35 0.20 inches mm CSR1206 0.079 2.00 0.045 1.15 0.067 0.008 1.70 0.20 inches mm CSR1210 0.079 2.00 0.045 1.15 0.098 0.008 2.50 0.20 inches mm CSRN0815 0.039 1.00 0.071 1.80 0.154 0.008 3.90 0.20 inches mm CSR0830 0.039 1.00 0.071 1.80 0.299 0.008 7.60 0.20 inches mm CSR2010 0.142 3.60 0.055 1.40 0.098 0.008 2.50 0.20 inches mm CSRN2010 0.142 3.60 0.055 1.40 0.098 0.008 2.50 0.20 inches mm CSR2512 0.193 4.90 0.063 1.60 0.122 0.008 3.10 0.20 inches mm CSRN2512 0.193 4.90 0.063 1.60 0.122 0.008 3.10 0.20 inches mm CSR1225 0.079 2.00 0.079 2.00 0.252 0.008 6.40 0.20 inches mm Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 3 www.seielect.com marketing@seielect.com CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Resistive Product Solutions Performance Characteristics Test Test Specification High Temperature Exposure MIL-STD-202 Method 108 Temperature Cycling JESD22 Method JA-104 Biased Humidity MIL-STD-202 Method 103 Operational Life MIL-STD-202 Method 108 External Visual MIL-STD 883 Method 2009 Physical Dimensions JESD22 Method JB-100 Resistance to Solvents MIL-STD 202 Method 215 Mechanical Shock MIL-STD 202 Method 213 Vibration MIL-STD 202 Method 204 Resistance to Soldering Heat MIL-STD 202 Method 210 ESD AEC-Q200-002 Solderability J-STD-002 Electrical Characterization User Spec Flammability UL-94 Board Flex AEC-Q200-005 Test Conditions 1000 hrs. @ T=155C. Unpowered. Measurement at 24 4 hours after test conclusion. 1000 Cycles (-55C to +125C) Measurement at 24 4 hours after test conclusion. 30 min maximum dwell time at each temperature extreme. 1 min. maximum transition time. 1000 hours 85C/85% RH. Note: Specified conditions: 10% of operating power. Measurement at 24 4 hours after test conclusion. Condition D Steady State TA=125C at rated power. Measurement at 24 4 hours after test conclusion. Electrical test not required. Inspect device construction, marking and workmanship Verify physical dimensions to the applicable device detail specification. Note: User(s) and Suppliers spec. Electrical test not required. Note: Aqueous wash chemical - OKEM Clean or equivalent. Do not use banned solvents. Figure 1 of Method 213. Condition C. 5 g's for 20 min., 12 cycles each of 3 orientations. Note: Use 8"X5" PCB 0.031" thick 7 secure points on one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10 - 2000 Hz. Condition B no pre-heat of samples. Note: Single wave solder - Procedure 2 for SMD. With the electrometer in direct contact with the discharge tip, verify the voltage setting at levels of 500 V, 1kV, 2kV, 4kV, 8kV. The electrometer reading shall be within 10% for voltages from 500 V to 8 kV. Electrical test not required. Magnification 50X. Conditions: SMD: a) Method B, 4 hrs @ 155C dry heat @ 235C. b) Method B @ 215C category 3. c) Method D category 3 @ 260C. Parametrically test per lot and sample size requirements, summary to show Min, Max, Mean and Standard Deviation at room as well as Min and Max operating temperatures. V-0 or V-1 are acceptable. Electrical test not required. 60 second minimum holding time. Terminal Strength (SMD) AEC-Q200-006 Flame Retardance AEC-Q200-001 Operating Temperature Range: -55C to +155C Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 4 Test Limits 1% Tol: (1.0% +0.05) 2%, 5% Tol:(1.5% +0.10) Typical 0.5% 1% Tol: (0.5% +0.05) 2%, 5% Tol:(1.5% +0.10) 0.5% 1% Tol: (1.00% +0.10) 2%, 5% Tol:(2.00% +0.10) 0.5% 1% Tol: (1.00% +0.10) 2%, 5% Tol:(2.00% +0.10) 0.5% -- Pass -- Pass Marking unsmeared Pass 1% Tol: (0.25% +0.05) 2%, 5% Tol:(1.00% +0.05) 0.5% 1% Tol: (0.50% +0.05) 2%, 5% Tol:(1.00% +0.05) 0.5% 1% Tol: (0.50% +0.05) 2%, 5% Tol:(1.00% +0.05) 0.5% -- Pass > 95% Coverage Pass -- Pass No ignition of tissue or scorching of pine board. 1% Tol: (1.00% +0.05) 2%, 5% Tol:(1.00% +0.05) None broken No flame Pass 0.5% Pass Pass www.seielect.com marketing@seielect.com CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Resistive Product Solutions Power Derating Curve: Percent Rated Power (%) 100 -55C 70C 80 60 40 20 155C 0 -60 -40 -20 0 20 40 60 80 100 Ambient Temperature (C) 120 140 160 180 How to Order 1 2 3 4 5 6 7 8 9 10 11 12 13 C S R 1 2 0 6 F T 1 0 L 0 Size 0402 0603 0805 1206 1210 0815 0830 2010 2512 1225 Power 0.125W 0.125W 0.25W 0.5W 0.5W 1W 2W 1W 2W 3W Product Series Standard CSR Narrow CSRN Terminations Tolerance Code Tol F 1% G 2% J 5% Code T K Description 7" Reel Paper Tape 7" Reel Plastic Tape 7" Reel Paper Tape 7" Reel Plastic Tape Packaging Size 0402 0603, 0805, 1206, 1210 2010, 2512 0815, 0830, 1225 0402 0603, 0805, 1206, 1210 2010, 2512 0815, 0830, 1225 Resistance Value Four characters with the multiplier used as the decimal holder. "L" used as multiplier of -3 10 for any value under 0.1 ohm 0.051 ohm = 51L0 0.35 ohm = R350 1 ohm = 1R00 Quantity 10,000 5,000 4,000 2,000 1,000 Legacy Part Number (before January 3, 2011): Type CSR CSRN SEI Type Code Nominal Resistance Tolerance Packaging CSR 1/2 0.01 1% R Description Standard Narrow Terminations Code Wattage 1/8S 0.125W 1/8 0.125W 1/4 0.25W 1/2 0.5W 1S 1W 1 1W 2 2W 3 3W Size 0402 0603 0805 1206 0815 2010 2512 1225 Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. Tolerance 1% 2% 5% 5 SEI Types 0402 0603, 0805, 1206 2010, 2512 0815, 1225 0402 0603, 0805, 1206 2010, 2512 0815, 1225 Pkg Qty 10,000 5,000 4,000 2,000 1,000 Description 7" reel paper tape 7" reel plastic tape 7" reel paper tape 7" reel plastic tape Code R I www.seielect.com marketing@seielect.com CSR/CSRN Series Stackpole Electronics, Inc. Thick Film Current Sensing Resistor Resistive Product Solutions High Power Chip Resistors and Thermal Management Stackpole has developed several surface mount resistor series in addition to our current sense resistors, which have had higher power ratings than standard resistor chips. This has caused some uncertainty and even confusion by users as to how to reliably use these resistors at the higher power ratings in their designs. The data sheets for the RHC, RMCP, RNCP, CSR, CSRN, CSRF, CSS, and CSSH state that the rated power assumes an ambient temperature of no more than 100 degrees C for the CSS / CSSH series and 70 degrees C for all other high power resistor series. In addition, IPC and UL best practices dictate that the combined temperature on any resistor due to power dissipated and ambient air shall be no more than 105C. At first glance this wouldn't seem too difficult, however the graph below shows typical heat rise for the CSR 1/2 100 milliohm at full rated power. The heat rise for the RMCP and RNCP would be similar. The RHC with its unique materials, design, and processes would have less heat rise and therefore would be easier to implement for any given customer. The 102 degrees C heat rise shown here would indicate there will be additional thermal reduction techniques needed to keep this part under 105C total hot spot temperature if this part is to be used at 0.75 watts of power. However, this same part at the usual power rating for this size would have a heat rise of around 72 degrees C. This additional heat rise may be dealt with using wider conductor traces, larger solder pads and land patterns under the solder mask, heavier copper in the conductors, vias through PCB, air movement, and heat sinks, among many other techniques. Because of the variety of methods customers can use to lower the effective heat rise of the circuit, resistor manufacturers simply specify power ratings with the limitations on ambient air temperature and total hot spot temperatures and leave the details of how to best accomplish this to the design engineers. Design guidelines for products in various market segments can vary widely so it would be unnecessarily constraining for a resistor manufacturer to recommend the use of any of these methods over another. Note: The final resistance value can be affected by the board layout and assembly process, especially the size of the mounting pads and the amount of solder used. This is especially notable for resistance values 50 m. This should be taken into account when designing. Rev Date: 11/05/2012 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 6 www.seielect.com marketing@seielect.com