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We offer current sense SMD resistors from 25µΩ to 3kΩ, with power ratings from 50mW to 50W. We also have 0Ω devices to be used as jumpers.

What are Current Sense SMD Resistors?

Current Sense Resistors are similar to normal resistors but with very low resistance ratings and high power ratings. These shunt resistors of known resistor value (R) are placed in a current conducting path so that the entire current (I) which is to be measured flows through them. By measuring the voltage drop (V) across the resistor and then using simple Ohm’s Law (I=V/R), we can calculate the amount of current that flows through the circuit.

Why use a current sense resistor?

Sensing the current flow is an important requirement in many power and general electronics applications. Often, current sensing is essential to monitor and control an application; for example, a battery charger circuit requires current sensing capability to correctly charge the battery and to determine the charge current needed from the driver.

How do I choose a current sense resistor?

The first step in selecting a current sense resistor is based on understanding the application, particularly in terms of its maximum input voltage. Also, as it will be passing a heavy current (because it is connected in series with the load) its I2R losses will likely be significant even if its resistance value is small. Therefore, a knowledge of its power rating is essential.

The next step is to know the tolerance and package required for the shunt resistor. Less than 1% tolerance is a good choice. But if the application demands extra accuracy, 0.5% to 0.1% tolerance shunt resistors may be more appropriate.

After choosing the value, power rating, and tolerance, it is important to select a suitable package that is easy to solder as well as with a lower footprint for smaller PCB areas. Try to select a resistor with a very low TCR value, ideally below 100 ppm/°C.

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Manufacturer Part No	Newark Part No.	Description / Manufacturer	Availability	Price for:	Price	Quantity	Resistance	Product Range	Resistor Case / Package	Power Rating	Resistance Tolerance	Resistor Technology	Voltage Rating	Resistor Element Type	Resistor Type	Temperature Coefficient	Product Length	Product Width	Product Height	Operating Temperature Min	Operating Temperature Max	Qualification	Automotive Qualification Standard
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ERJ8BWFR100V	08N2429 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, ERJ8B Series, 1206 [3216 Metric], 1 W, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.706 10+ $0.386 25+ $0.364 50+ $0.341 100+ $0.319	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.1ohm	ERJ8B Series	1206 [3216 Metric]	1W	± 1%	Thick Film	-	-	-	± 100ppm/°C	3.2mm	1.6mm	0.65mm	-55°C	155°C	AEC-Q200	-
WSL2512R2500FEA	26R4263 + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.25 ohm, WSL Series, 2512 [6432 Metric], 1 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.282 10+ $0.282 25+ $0.282 50+ $0.282 100+ $0.282	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.25ohm	WSL Series	2512 [6432 Metric]	1W	± 1%	Metal Strip	-	-	-	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200	-
RL1220S-R10-F	28K1608 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.1 ohm, RL Series, 0805 [2012 Metric], 250 mW, ± 1%, Thin Film SUSUMU You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.048 25+ $0.048 50+ $0.048 100+ $0.044	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.1ohm	RL Series	0805 [2012 Metric]	250mW	± 1%	Thin Film	-	-	-	0ppm/°C to +200ppm/°C	2.01mm	1.25mm	0.4mm	-55°C	125°C	-	-
WSK2512R0250FEA	98K2976 Data Sheet + RoHS	SMD Current Sense Resistor, WSK Series, Power Metal Strip-«, 0.025 ohm, WSK Series VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.261 10+ $0.261 25+ $0.261 50+ $0.261 100+ $0.261 250+ $0.261 More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.025	WSK Series	2512 [6432 Metric]	1	± 1%	Metal Film	-	-	-	± 35ppm/°C	6.35	3.18	0.635	-65	170	AEC-Q200	-
WSL2512R1000FEA	98K3046 Data Sheet + RoHS	SMD Current Sense Resistors, AEC-Q200 WSL Series, 0.1 ohm, 1 W, - 1%, 310 mV RoHS Compliant: Yes VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.561 10+ $0.437 25+ $0.407 50+ $0.379 100+ $0.353	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Mult: 5 Cut Tape (Min: 5) Re-Reel (Min: 100) Add	0.1ohm	WSL	2512 [6432 Metric]	1W	± 1%	Metal Strip	-	-	-	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200	-

CRA2512-FZ-R020ELF	14P5518 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, CRA2512 Series, 0.02 ohm, CR Series, 2512 [6432 Metric], 3 W, ± 1% BOURNS You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.107 25+ $0.107 50+ $0.107 100+ $0.107 250+ $0.107 500+ $0.107 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.02	CR Series	2512 [6432 Metric]	3	± 1%	Metal Film	-	-	-	± 75ppm/°C	6.4	3.2	0.7	-55	170	AEC-Q200	-

RL3720WT-R010-F	28K1735 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.01 ohm, RL Series, 1508 [3820 Metric], 1 W, ± 1%, Thin Film SUSUMU You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.571 25+ $0.368 50+ $0.327 100+ $0.287 250+ $0.26 500+ $0.233 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.01ohm	RL Series	1508 [3820 Metric]	1W	± 1%	Thin Film	-	-	-	0, +350ppm/°C	2mm	3.75mm	0.5mm	-55°C	125°C	-	-

CRA2512-FZ-R010ELF	14P5516 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, CRA2512 Series, 0.01 ohm, CR Series, 2512 [6432 Metric], 3 W, ± 1% BOURNS You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.277 25+ $0.234 50+ $0.234 100+ $0.234 250+ $0.218 500+ $0.203 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.01	CR Series	2512 [6432 Metric]	3	± 1%	Metal Film	-	-	-	± 75ppm/°C	6.4	3.2	0.7	-55	170	AEC-Q200	-

LRCS0402-1RFT5	61M7599 Data Sheet + RoHS	SMD Current Sense Resistors, LRCS Series, 1 ohm, 63 mW, - 1%, 0402 [1005 Metric] RoHS Compliant: Yes TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.30 25+ $0.266 50+ $0.164 100+ $0.135 250+ $0.114	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	1ohm	LRCS	0402 [1005 Metric]	63mW	± 1%	Metal Film	-	-	-	± 200ppm/°C	1.02mm	0.5mm	0.32mm	-55°C	155°C	-	-

ERJ14BSFR10U	63W0518 Data Sheet + RoHS	SMD Current Sense Resistors, AEC-Q200 ERJ Series, 0.1 ohm, 500 mW, - 1% RoHS Compliant: Yes PANASONIC You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.294 25+ $0.273 50+ $0.253 100+ $0.232	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 100) Add	0.1ohm	ERJ14B	1210 [3225 Metric]	500mW	± 1%	Thick Film	-	-	-	± 200ppm/°C	3.2mm	2.5mm	0.6mm	-55°C	125°C	AEC-Q200	-

LRC-LR1206LF-01-R250-F	70K8688 Data Sheet + RoHS	SMD Current Sense Resistor, LRC Series, 0.25 ohm, LRC Series, 1206 [3216 Metric], 500 mW, ± 1% TT ELECTRONICS / INTERNATIONAL RESISTIVE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.785 25+ $0.611 50+ $0.538 100+ $0.463 250+ $0.414 500+ $0.365 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.25	LRC Series	1206 [3216 Metric]	500	± 1%	Thick Film	-	-	-	± 100ppm/°C	3.2	1.6	0.8mm	-55	150	AEC-Q200	-

RL1632S-R050-F	28K1692 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.05 ohm, RL Series, 1206 [3216 Metric], 500 mW, ± 1%, Thin Film SUSUMU You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.10 25+ $0.10 50+ $0.10 100+ $0.10 250+ $0.10 500+ $0.10 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.05ohm	RL Series	1206 [3216 Metric]	500mW	± 1%	Thin Film	-	-	-	0ppm/°C to +200ppm/°C	3.2mm	1.6mm	0.5mm	-55°C	125°C	-	-

LR1206-R50FW	97K3865 Data Sheet + RoHS Date/Lot Code	Surface Mount Chip Resistor, AEC-Q200 LR Series, 0.5 ohm, 500 mW, 1%, 200 V, 1206 [3216 Metric] RoHS Compliant: Yes TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.673 10+ $0.559 25+ $0.459 50+ $0.427 100+ $0.395 250+ $0.379 More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Mult: 5 Cut Tape (Min: 5) Re-Reel (Min: 10) Add	0.5ohm	LR Series	1206 [3216 Metric]	500mW	± 1%	Thick Film	200V	-	General Purpose	± 100ppm/°C	3.2mm	1.6mm	-	-55°C	150°C	AEC-Q200	-

RL1220S-R20-F	28K1616 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.2 ohm, RL Series, 0805 [2012 Metric], 250 mW, ± 1%, Thin Film SUSUMU You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.326 25+ $0.276 50+ $0.193 100+ $0.108	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.2ohm	RL Series	0805 [2012 Metric]	250mW	± 1%	Thin Film	-	-	-	0ppm/°C to +200ppm/°C	2.01mm	1.25mm	0.4mm	-55°C	125°C	-	-

WSLP1206R0100FEA	84R1939 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.01 ohm, WSL Series, 1206 [3216 Metric], 1 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.384 25+ $0.354	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.01ohm	WSL Series	1206 [3216 Metric]	1W	± 1%	Metal Strip	-	-	-	± 75ppm/°C	3.2mm	1.6mm	0.635mm	-65°C	170°C	AEC-Q200	-

LRC-LR2010LF-01-R250-F	88K2573 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.25 ohm, LRC Series, 2010 [5025 Metric], 1 W, ± 1%, Thick Film TT ELECTRONICS / INTERNATIONAL RESISTIVE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.928	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.25	LRC Series	2010 [5025 Metric]	1	± 1%	Thick Film	-	-	-	± 100ppm/°C	5.23	2.64	0.84	-55	150	AEC-Q200	-

WSL2512R2500FEA	98K3049 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistors, AEC-Q200 WSL Series, 0.25 ohm, 1 W, - 1%, 500 mV RoHS Compliant: Yes VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.694 10+ $0.445 25+ $0.412 50+ $0.379 100+ $0.353	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Mult: 5 Cut Tape (Min: 5) Re-Reel (Min: 100) Add	0.25ohm	WSL	2512 [6432 Metric]	1W	± 1%	Metal Strip	-	-	-	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200	-

WSL12061L000FEA	18X4707 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.001 ohm, WSL Series, 1206 [3216 Metric], 250 mW, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.345	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.001	WSL Series	1206 [3216 Metric]	250	± 1%	Metal Strip	-	-	-	± 275ppm/°C	3.2	1.6	0.635	-65	170	AEC-Q200	-

LVM25FVR050E-TR	51AC1070 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.05 ohm, LVM Series, 2512 [6432 Metric], 1 W, ± 1%, Metal Foil OHMITE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.612 25+ $0.30 50+ $0.268 100+ $0.237 250+ $0.20 500+ $0.164 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	0.05ohm	LVM Series	2512 [6432 Metric]	1W	± 1%	Metal Foil	-	-	-	± 50ppm/°C	6.4mm	3.2mm	0.7mm	-55°C	170°C	-	-

LVM12FTR050E-TR	51AC1064 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 0.05 ohm, LVM Series, 1206 [3216 Metric], 500 mW, ± 1%, Metal Foil OHMITE You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.217 25+ $0.217 50+ $0.217 100+ $0.217 250+ $0.217 500+ $0.199 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	0.05ohm	LVM Series	1206 [3216 Metric]	500mW	± 1%	Metal Foil	-	-	-	± 100ppm/°C	3.2mm	1.6mm	0.55mm	-55°C	155°C	-	-

RL73H2AR22FTD	43AC4015 Data Sheet + RoHS Date/Lot Code	CURRENT SENSE RES, 0R22, 1%, 125 MW TE CONNECTIVITY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.227 25+ $0.193 50+ $0.157 100+ $0.122	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 500) Add	0.22ohm	RL73	0805 [2012 Metric]	125mW	± 1%	Thick Film	-	-	-	± 100ppm/°C	2.01mm	1.25mm	0.55mm	-55°C	155°C	-	-

CSS2H-3920R-L200FE	67AC7862 Data Sheet + RoHS	CURRENT SENSE RES, 200 µOHM, 1%, 12 W BOURNS You previously purchased this product. View in Order History	View Additional Avnet Stock	Each	500+ $1.03	Restricted Item Minimum order of 1000 items Multiples of 1000 only Please enter a valid quantity Add	200µohm	CSS2H-3920	3921 [1052 Metric]	12W	± 1%	Metal Strip	-	-	-	± 50ppm/°C	10mm	5.2mm	2.5mm	-55°C	170°C	AEC-Q200	-

PE1206FRF070R05L	82AH7700 Data Sheet + RoHS Date/Lot Code	RES, AEC-Q200, 0R05, 1%, 0.25W, 1206 ROHS COMPLIANT: YES YAGEO You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.295 25+ $0.252	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Mult: 10 Cut Tape (Min: 10) Re-Reel (Min: 100) Add	0.05ohm	PE_L Series	1206 [3216 Metric]	250mW	± 1%	Metal Film	-	-	-	± 100ppm/°C	3.2mm	1.6mm	0.64mm	-55°C	170°C	AEC-Q200	-

WSLF2512L5000FEA	08AJ1731 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, 500 µohm, WSLF Series, 2512 [6432 Metric], 6 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.836 25+ $0.638 50+ $0.543 100+ $0.448 250+ $0.394	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 10) Add	500	WSLF Series	2512 [6432 Metric]	6	± 1%	Metal Strip	-	-	-	± 200ppm/°C	6.35	3.02	0.35	-65	170	AEC-Q200	-

WSL2512R0100FEB	14AJ2833 Data Sheet + RoHS Date/Lot Code	RES, 0R01, 1W, 2512, METAL STRIP ROHS COMPLIANT: YES VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.887 10+ $0.763 25+ $0.686 50+ $0.609 100+ $0.532	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Mult: 1 Cut Tape (Min: 1) Re-Reel (Min: 100) Add	0.01ohm	WSL	2512 [6432 Metric]	1W	± 1%	Metal Strip	-	-	-	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200	-