CSSH0805JTL250

CSS SEI | Alldatasheet

Document overview

• Manufacturer or author: LCLOUD
• PDF pages: 13

Technical content

Rev Date: 7/29/2022 1 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Features:

• High power metal alloy current sense resistor
• High temperature performance up to 225C (for operation up to 275ºC, contact Stackpole)
• Low thermal EMF (< 1µ V/C)
• Proprietary processing technique produces extremely low resistance values
• Qualified to AEC-Q200
• 100% RoHS compliant and lead free without exemption
• Halogen free
• REACH compliant Please refer to the High-Power Resistor Application Note (page 12) for more information on designing and implementing high power resistor types. Electrical Specifications - CSS Electrical Specifications – CSSH (High Power) 0.5% 1% 5% 11.48 18.16 ± 150 - 0.0025 - 12.84 20.31 ± 150 - 0.002 - ± 150 0.001, 0.0015 ± 100 0.002, 0.003, 0.004, 0.005 18.25 28.86 ± 100 - 0.0015 - ± 50 - ± 25 0.007 - 0.015 ± 15 0.016 - 0.05 ± 50 - ± 25 - ± 15 0.007 - 0.1 ± 50 - ± 25 - ± 15 0.007 - 0.075 ± 100 - ± 50 - ± 25 0.004 -0.007 ± 15 0.008 - 0.19 CSS4527 5 100 173 ± 50 0.007 - 0.12 31.63 50 - - 0.008 - 0.161.2427.39 63.25 63.25 126.49 316.23 31.62 141.42 31.62 63.25 0.004 - 0.006 0.0005 - 0.12 0.004 - 0.006 0.007 - 0.075 0.0002 0.00025 - 0.003 0.004 - 0.007 0.0005 - 0.003 0.001 - 0.004 0.005 - 0.015 0.016 - 0.05 0.001 - 0.003 Ohmic Range (Ω) and Tolerance CSS0402 0.33 CSS0603 0.33 Maximum Overload Current (A) TCR (ppm/ºC)Type/Code Maximum Power Rating (W) Maximum Rating Current (A) CSS0508 1 CSS2728 CSS2512 CSS2010 CSS2725 4 CSS1206 1 CSS0805 0.5 0.007 - 0.1 0.5% 1%, 2%, 5% ± 100 - 0.0005 ± 75 0.001 25.81 51.63 ± 75 - 0.0015 - 0.002 20 40 ± 50 0.007 - 0.013 0.0025 - 0.013 ± 150 - 0.0003 ± 50 - 0.0005 - 0.0025 ± 25 0.007 - 0.01 0.003 - 0.01 ± 50 0.0101 - 0.05 0.0101 - 0.08 ± 25 0.004 - 0.007 0.004 - 0.007 ± 15 0.008 - 0.019 0.008 - 0.05 CSSH3637 7 152.75 341.57 ± 100 - 0.0003 44.72 89.44 Ohmic Range (Ω) and Tolerance 70.71 CSSH2512 3 100 223.61 CSSH2728 4 31.62 Type/Code CSSH0805 Maximum Power Rating (W) Maximum Rating Current (A) Maximum Overload Current (A) TCR (ppm/ºC)

Rev Date: 7/29/2022 2 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Mechanical Specifications (0201 – 0805) 0.012 ± 0.004 inches 0.23 ± 0.10 mm 0.018 ± 0.008 inches 0.45 ± 0.20 mm 0.012 ± 0.008 inches 0.30 ± 0.20 mm 0.015 ± 0.010 inches 0.38 ± 0.25 mm 0.014 ± 0.010 inches 0.36 ± 0.25 mm 0.013 ± 0.010 inches 0.32 ± 0.25 mm 0.028 ± 0.008 inches 0.70 ± 0.20 mm 0.016 ± 0.008 inches 0.40 ± 0.20 mm 0.024 ± 0.008 0.030 ± 0.008 inches 0.60 ± 0.20 0.75 ± 0.20 mm 0.022 ± 0.008 inches 0.55 ± 0.20 mm 0.018 ± 0.008 inches 0.45 ± 0.20 mm 0.014 ± 0.008 inches 0.45 ± 0.20 mm 0.014 ± 0.008 inches 0.35 ± 0.20 mm 0.014 ± 0.008 inches 0.35 ± 0.20 mm 0.003 - 0.02 CSS0805 0.5 0.0015 0.0005 0.001 0.0015 0.002 0.0025 0.003 - 0.008 0.009 - 0.013 CSSH0805 1 CSS0603 0.33 0.002 0.0025, 0.003 0.004 - 0.02 0.002 CSS0508 0.001 0.0015 0.002 0.003 - 0.005 Unit CSS0201 0.2 0.01, 0.02 Type/Code Maximum Power Rating (W) Resistance Range (Ω) L W H 0.005 - 0.02 CSS0402 0.33 Bottom 0.0025 Type Power Rating Resistance Range L W H T2 MA0805 1 W 0.5 mΩ 1mΩ 0.55± 0.20 0.40± 0.20 1.5mΩ 0.35± 0.20 2mΩ 2.5~3 mΩ 4~8 mΩ 9~ 13 0.35 ± 0.20 14~ 15 0.30±0.20

Rev Date: 7/29/2022 3 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Mechanical Specifications (1206 – 3637) 0.025 ± 0.010 inches 0.51 ± 0.25 0.51 ± 0.25 inches 0.60 ± 0.25 0.60 ± 0.25 mm 0.020 ± 0.010 0.020 ± 0.010 inches 0.51 ± 0.25 0.51 ± 0.25 mm 0.080 ± 0.010 0.080 ± 0.010 inches 2.02 ± 0.25 2.02 ± 0.25 mm 0.074 ± 0.010 0.074 ± 0.010 inches 1.88 ± 0.25 1.88 ± 0.25 mm 0.054 ± 0.010 0.054 ± 0.010 inches 1.37 ± 0.25 1.37 ± 0.25 mm 0.074 ± 0.010 0.074 ± 0.010 inches 1.88 ± 0.25 1.88 ± 0.25 mm 0.066 ± 0.010 0.066 ± 0.010 inches 1.68 ± 0.25 1.68 ± 0.25 mm Bottom Termination 0.002 - 0.004 0.005 UnitType/Code Maximum Power Rating (W) Resistance Range (Ω) L W 0.006 - 0.05 Top Termination 0.001 H CSS1206 1 CSSH2512 3 0.0101 - 0.08 0.001 - 0.003 0.0031 - 0.1 CSS2010 1 CSS2512 2 0.0005 - 0.004 0.0041 - 0.075 0.0003 0.0006 - 0.0007 0.003 - 0.0035 0.0041 - 0.01 0.0005 0.00075 0.0008 - 0.0029 0.0036 - 0.004

Rev Date: 7/29/2022 4 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Performance Characteristics Mechanical Specifications (4527) Mechanical Specifications (1206 – 3637) (cont.) Test Test Method Test Specification Test Condition R1: resistance of room temperature (T1) R2: resistance of 125ºC (T2) Temperature Coefficient of Resistance (TCR) JIS-C-5201-1 4.8 Per specification (refer to Electrical Specification table) TCR (ppm/ºC) (R2 - R1) R1 (T2 - T1) X 106= 0.137 ± 0.010 inches 3.47 ± 0.25 mm 0.127 ± 0.010 inches 3.22 ± 0.25 mm 0.072 ± 0.010 inches 1.82 ± 0.25 mm Bottom Termination UnitType/Code Maximum Power Rating (W) Resistance Range (Ω) L W H Top Termination CSS4527 5 0.0005 0.0051 - 0.1 0.0006 - 0.003 0.004 - 0.005 0.071 ± 0.010 0.071 ± 0.010 inches 1.80 ± 0.25 1.80 ± 0.25 mm 0.051 ± 0.010 0.051 ± 0.010 inches 1.30 ± 0.25 1.30 ± 0.25 mm 0.0015 0.002 0.0025 0.003 0.00075 UnitL W H Top Termination Bottom Termination 0.0003CSSH3637 7 Type/Code Maximum Power Rating (W) Resistance Range (Ω) CSSH2728 4 0.004 - 0.1 0.0002, 0.00025, 0.0005 CSS2728 3 0.004 - 0.1 CSS2725 4 0.001

Rev Date: 7/29/2022 5 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Performance Characteristics (cont.) Power Derating Curve: Test Test Method Test Specification Test Condition The number of rated power are as follows: Rating power duration: 5 seconds. Operating Temperature Range for size CSSH0805, CSSH3637 is -55°C to +170°C. Operating Temperature Range for sizes CSS0402, CSS0603 and CSS0805 is -55°C to +155°C. Operating Temperature Range for sizes CSS1206 - CSS4527, CSSH 2512 and CSSH 2728 is -55°C to +225°C. Operating Temperature Range for size CSS0201 is -55°C to +125°C. Applied 500 VAC for 1 minute and limit surge current 50 mA (max) Dielectric Withstanding Voltage JIS-C-5201-1 4.7 No short or burned in the appearance. Put the resistor in the fixture, add 100 VDC in terminal for 60 seconds then measure the insulation resistance between electrodes and insulating enclosure or between electrodes and base material ≥ 109 ΩJIS-C-5201-1 4.6Insulation Resistance JIS C 5201-1 4.13Short Time Overload Size Power (W) CSS0201 0.2 2.5 times CSS0402 0.33 2.5 times CSS0603 0.33 2.5 times CSS0508 1 2.5 times CSS0805 0.5 2.5 times CSSH0805 1 4 times CSS1206 1 5 times CSS2010 1 5 times CSS2512 2 5 times CSSH2512 3 5 times CSS2725 4 5 times CSS2728 3 5 times CSSH2728 4 5 times CSS4527 5 5 times CSSH3637 7 5 times Rated Power Size Power (W) Max. R Change CSS0201 0.2 ≤ ± 0.5 CSS0402 0.33 ± 1% + 0.5mΩ CSS0603 0.33 ± 1% + 0.5mΩ CSS0508 1 ± 1% + 0.5mΩ CSS0805 0.5 ± 1% + 0.5mΩ CSSH0805 1 ≤ ± 1% CSS1206 1 ≤ ± 0.5 CSS2010 1 ≤ ± 0.5 CSS2512 2 ≤ ± 0.5 CSSH2512 3 ≤ ± 0.5 CSS2725 4 ≤ ± 0.5 CSS2728 3 ≤ ± 0.5 CSSH2728 4 ≤ ± 0.5 CSS4527 5 ≤ ± 2% CSSH3637 7 ≤ 0.5% + 0.5mΩ

Rev Date: 7/29/2022 6 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Mechanical Performance Environmental Performance Test Item Test Method Test Specifications Test Condition 0201 - 0805 = ± 1% + 0.5mΩ CSSH0805 and ≥ 1206 = ± 0.5% + 0.5mΩ CSSH3637 = ± 0.5% + 0.5mΩ Jumper = < Rmax ≤ ± 0.5% ≤ ± 0.5% Mechanical Shock JIS C 5202 6.7 ± 1% + 0.5mΩ a = 50 G, t = 11 ms, 5 times shock 260 ± 5°C for 10 ± 1 secondsJIS C 5201-1 4.18Resistance to Solder Heat The resistor shall be mounted by its terminal leads to the supporting terminals on the solid table. The entire frequency range from 10 Hz to 55 Hz and return to 10 Hz, shall be transferred in 1 minute. Amplitude: 1.5 mm - This motion shall be applied for a period of 4 hours in each 3 mutually perpendicular directions (a total of 12 hours) No evidence of mechanical damageJIS C 5201-1 4.22Vibration 245 ± 5°C for 3 ± 0.5 secondsSolderability JIS C 5201-1 4.17 > 95 % coverage The tested resistor is immersed into isopropyl alcohol of 20 ~ 25°C for 60 seconds, then the resistor is left in the room for 48 hours. JIS C 5201-1 4.29Resistance to Solvent No evidence of mechanical damage Substrate Bending JIS C 5201-1 4.33 ± 1% + 0.5mΩ CSSH3637 = ± 0.5% + 0.5mΩ Span between fulcrums: 90 mm Bend width: 2 mm Test Item Test Method Test Specifications Test Condition 0201 - 0805 = ± 1% + 0.5mΩ ≥ 1206 = ± 0.5% 0201 - 0805 = ± 1% + 0.5mΩ 1000 hours at + 155°C ± 2°C CSSH0805 = ± 1% CSSH3637 = ± 1% + 0.5mΩ ≥ 1206 = ± 1%

0201 Jumper: < Rmax 1000 hours at + 125°C ± 2°C

0201 = -55°C to +125°C, 100 cycles 0402 - 0805 = -55°C +155°C, 100 cycles CSSH0805 = ± 0.5% CSSH3637 = ± 0.5% + 0.5mΩ Lowest temperature: -55 +0/-10°C Highest temperature: 150 + 10/-0°C 0201 - 0805 = ± 2% + 0.5mΩ T = 40 ± 2°C , RH = 90~95%, Load with Rated Current 0201 Jumper = < R max 1.5 hours "ON", 0.5 hours "OFF", 1000 hours CSSH0805 = ± 0.5% CSSH3637 = ± 0.5% + 0.5mΩ ≥ 1206 = ± 0.5% 0201 - 0805 = ± 2% + 0.5mΩ

0201 Jumper = R max

CSSH0805 = ± 1% CSSH3637 = ± 1% + 0.5mΩ 1206 - 2728 = ± 1% 4527 = ± 2% 1000 hours at -55°C ± 2°C JIS C 5201-1 4.23.4Low Temperature Exposure (Storage) -55°C to +150°C, 100 cycles High Temperature Exposure (Storage) JIS C 5201-1 4.23.2 1000 hours at +170°C ± 5°C 0201 - 0805 = ± 1% + 0.5mΩ JIS C 5201-1 4.19Temperature Cycling ≥ 1206 = ± 0.5% Load Life JIS C 5201-1 4.25 T = 70 ± 2°C, load with Rated Current 1.5 hours "ON", 0.5 hours "OFF", 1000 hours 1000 hours at +85°C / 85% R.H., 10% of operating power 1.5 hours "ON" and 0.5 hours "OFF JIS C 5201-1 4.24 Biased Humidity

Rev Date: 7/29/2022 7 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Recommended Pad Layouts Environmental Performance (cont.) Test Item Test Method Test Specifications Test Condition Test item (Thermal Shock Test): Inspection: Inspect for whisker formation on specimens that underwent the acceleration test, with a magnifier (stereo microscope) of about 40 or higher magnification. If judgement is difficult with this method, use a scanning electron microscope (SEM) of about 1000 or higher magnification. Max 50μm JESD Standard No.22A121 class 2 Whisker Test Minimum Storage Temperature -55 +0 / -10°C Maximum Storage Temperature 85 + 10 / -0°C Temperature-Retaining Time 10 minutes Number of Temperature Cycles 1500 Testing Condition 0.008 0.013 0.010 inches 0.20 0.33 0.25 mm 0.014 inches 0.024 0.024 0.35 mm 0.60 0.60 0.016 inches 0.40 mm 0.056 0.036 0.015 inches 1.41 0.92 0.38 mm 0.053 0.020 inches 1.35 0.036 0.50 mm 0.051 0.92 0.024 inches 1.30 0.60 mm 0.035 0.016 inches 0.90 0.091 0.40 mm 0.033 2.30 0.020 inches 0.85 0.50 mm 0.061 0.020 inches 1.55 0.057 0.50 mm 0.055 1.44 0.031 inches 1.40 0.80 mm 0.053 0.012 inches 1.35 0.071 0.30 mm 0.039 1.80 0.039 inches 1.00 1.00 mm 0.063 0.086 0.039 inches 0.001 - 0.013 CSSH0805 CSS0805 0.5 0.0015, 0.002 0.003 - 0.02 0.002 0.0005 CSS0508 1 0.001, 0.0015, 0.002 0.003 - 0.005 Type/Code Maximum Power Rating (W) Resistance Range (Ω) a b i Unit 0.2 0.01, 0.02 0.33CSS0402 CSS0603 0.33 0.0025, 0.003 0.004 - 0.02 0.0025 0.005 - 0.02 CSS0201 CSS1206

Rev Date: 7/29/2022 8 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Recommended Solder Profiles This information is intended as a reference for solder profiles for Stackpole resistive components. These profiles should be compatible with most soldering processes. These are only recommendations. Actual numbers will depend on board density, geometry, packages used, etc., especially those cells labeled with “*”. 100% Matte Tin / RoHS Compliant Terminations Soldering iron recommended temperatures: 330°C to 350°C with minimum duration. Maximum number of reflow cycles: 3. Recommended Pad Layouts (cont.) Wave Soldering Description Maximum Recommended Minimum Preheat Time 80 seconds 70 seconds 60 seconds Temperature Diff. 140°C 120°C 100°C Solder Temp. 260°C 250°C 240°C Dwell Time at Max. 10 seconds 5 seconds * Ramp DN (°C/sec) N/A N/A N/A Temperature Diff. = Defference between final preheat stage and soldering stage. 0.114 0.048 inches 2.89 0.115 1.22 mm 0.090 2.92 0.095 inches 2.29 2.41 mm 0.120 0.050 inches 3.05 1.27 mm 0.083 0.125 inches 2.11 3.18 mm 0.120 0.050 inches 3.05 1.27 mm 0.086 0.145 0.118 inches 2.19 3.68 3.00 mm 0.110 0.071 inches 2.79 1.80 mm 0.086 0.118 inches 2.19 3.00 mm 0.083 0.125 inches 2.11 3.18 mm 0.125 0.270 0.052 inches 3.18 6.86 1.32 mm 0.108 0.138 inches 2.75 0.308 3.51 mm 0.108 7.82 0.138 inches 2.75 3.51 mm 0.228 0.138 inches 5.80 0.344 3.51 mm 0.163 8.74 0.268 inches 4.15 6.81 mm 0.152 0.413 0.114 inches 3.85 10.50 2.90 mm 0.0002 - 0.003 CSSH2512 3 0.0003 - 0.0005 0.003 - 0.004 0.0101 - 0.08 0.0006 - 0.0029 0.0041 - 0.01 CSS2010 1 0.001 - 0.003 0.0031 - 0.1 CSS2512 i 0.0005 - 0.004 0.0041 - 0.075 CSS2728 3 0.004 - 0.1 CSSH2728 4 0.004 - 0.1 CSS2725 4 UnitType/Code Maximum Power Rating (W) Resistance Range (Ω) a b CSSH3637 7 0.0003 CSS4527 5 0.0005 - 0.005 0.0051 - 0.12

Rev Date: 7/29/2022 9 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Packaging Specifications Recommended Lead Free Resistor Reflow Profile Convection IR Reflow Description Maximum Recommended Minimum Ramp Up (°C/sec) 3°C/sec 2°C/sec * Dwell Time > 217°C 150 seconds 90 seconds 60 seconds Solder Temp. 260°C 245°C * Dwell Time at Max. 30 seconds 15 seconds 10 seconds Ramp DN (°C/sec) 6°C/sec 3°C/sec * Type/Code Tape Width Unit CSSH3637 16 mm W ØD ØM 0201, 0402, 0603 0508, 0805,1206 8 mm CSSH0805 8 mm 2010, 2512, 2725, 2728 12 mm 4527 24 mm

Rev Date: 7/29/2022 10 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Plastic Tape Specifications (0201 – 0805) Type/Code Unit inches 0.079 ± 0.004 mm 2.00 ± 0.10 inches mm 0.157 ± 0.004 inches 4.00 ± 0.10 mm inches mm inches mm Type/Code Unit 0.028 ± 0.008 inches 0.75 ± 0.20 mm T W P E F ØD +0.004 / -0 +0.1 / -0 G H A B CSS0603 CSS0201 CSSH0805 CSS0402 CSS0603 CSS0508 CSS0805 CSS0201 CSS0402 CSSH0805 CSS0508 CSS0805 Item W P E F ψD ψD1 G H A B T1 T

Rev Date: 7/29/2022 11 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions Plastic Tape Specifications (1206 – 4227) Type/Code Unit 0.266 ± 0.004 0.077 ± 0.004 inches 7.70 ± 0.10 1.45 ± 0.10 mm CSS1206 CSS2010 CSS2512 CSS4527 E F T1 CSS2725 CSS2728 A B W Type/Code Unit 0.008 ± 0.002 inches 0.20 ± 0.05 mm 0.009 ± 0.002 0.157 ± 0.004 inches 0.23 ± 0.05 4.00 ± 0.10 mm 0.315 ± 0.004 inches 0.010 ± 0.002 8.00 ± 0.10 mm 0.25 ± 0.05 inches 0.472 ± 0.004 mm 0.012 ± 0.004 12.00 ± 0.10 inches 0.30 ± 0.10 mm T2 P P0 P1 ΦD CSS2728 CSS4527 CSS1206 CSS2010 CSS2512 +0.004 / -0 +0.10 / -0 CSS2725 Plastic Tape Specifications (3637) Type/Code Unit W P E ØD ØD1F TCSSH3637 G H A B T1 +0.004/-0 +0.10/-0

Rev Date: 7/29/2022 12 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. 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°C for the CSS / CSSH series and 70°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 105°C. At first glance this wouldn’t seem too difficult, however the graph below shows typical heat rise for the CSR1206 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°C heat rise shown here would indicate there will be additional thermal reduction techniques needed to keep this part under 105°C 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°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, via through PCB, air movement, an d heat sinks, among many other techniques. Because of the variety of methods customers can use to lower the effective heat rise of the cir cuit, 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 s egments 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 mΩ. This should be taken into account when designing. RoHS Compliance Stackpole Electronics has joined the worldwide effort to reduce the amount of lead in electronic components and to meet the v arious regulatory requirements now prevalent, such as the European Union’s directive regarding “Restrictions on Hazardous Substances” (RoHS 3). As part of this ongoing program, we periodically update this document with the status regarding the availability o f our compliant components. All our standard part numbers are compliant to EU Directive 2011/65/EU of the European Parliament as amended by Directive (EU) 2015/863/EU as regards the list of restricted substances.

Rev Date: 7/29/2022 13 www.seielect.com This specification may be changed at any time without prior notice. marketing@seielect.com Please confirm technical specifications before you order and/or use. CSS / CSSH Series Ultra-precision Metal Alloy Current Sensing Chip Resistor Stackpole Electronics, Inc. Resistive Product Solutions RoHS Compliance Status “Conflict Metals” Commitment We at Stackpole Electronics, Inc. are joined with our industry in opposing the use of metals mined in the “conflict region” of the eastern Democratic Republic of the Congo (DRC) in our products. Recognizing that the supply chain for metals used in the electronics industry is very complex, we work closely with our own suppliers to verify to the extent possible that the materials and products we s upply do not contain metals sourced from this conflict region. As such, we are in compliance with the requirements of Dodd-Frank Act regarding Conflict Minerals. Compliance to “REACH” We certify that all passive components supplied by Stackpole Electronics, Inc. are SVHC (Substances of Very High Concern) free and compliant with the requirements of EU Directive 1907/2006/EC, “The Registration, Evaluation, Authorization and Restriction of Chemicals”, otherwise referred to as REACH. Contact us for complete list of REACH Substance Candidate List. Environmental Policy It is the policy of Stackpole Electronics, Inc. (SEI) to protect the environment in all localities in which we operate. We continually strive to improve our effect on the environment. We observe all applicable laws and regulations regarding the protection of our environment and all requests related to the environment to which we have agreed. We are committed to the prevention of all forms of pollution. How to Order 1 2 3 4 5 6 7 8 9 10 11 12 13 C S S 2 7 2 5 F T 3 L 0 0 CSS Ultra Precision Current Sensing Chip Resistor SMD YES 100% Matte Sn over Ni Always Always CSSH Ultra Precision Current Sensing Chip Resistor (High Power) SMD YES 100% Matte Sn over Ni Always Always Standard Product Series

Description

Mfg. Effective Date (Std Product Series) Lead-Free Effective Date Code (YY/WW) Resistance Value Code Description Size W Code Tol Code Description Size Quantity CSS Metal Alloy 0201 0.2 D 0.5% 0201, 0402 10000 CSSH High Power 0402 0.33 F 1% 0603, 0508 0603 0.33 G 2% 0805, (H)0805 0805 0.5 J 5% 1206 4000 0508 1 2010, 2512 (H)0805 1 (H)2512 0.00025 ohm = L250 1206 1 2725, 2728 0.004 ohm = 4L00 2010 1 (H)2728,(H)3637 0.05 ohm = 50L0 2512 2 4527 500 0.12 ohm = R120 (H)2512 3 2728 3 2725 4 (H)2728 4 4527 5 (H)3637 7 PackagingProduct Series Size Tolerance 2000 1000 T Plastic Tape Four characters with the multiplier used as the decimal holder. "L" used as multiplier of 10-3 for any value under 0.1 ohm. 5000