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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	Resistor Element Type	Resistor Type	Temperature Coefficient	Product Length	Voltage Rating	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, ERJ Series, 0.1 ohm, ERJ8B Series, 1206 [3216 Metric], 1 W, ± 1% PANASONIC You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.706 10+ $0.384 100+ $0.337 500+ $0.25 5000+ $0.191	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 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, WSL Series, 0.25 ohm, WSL Series, 2512 [6432 Metric], 1 W, ± 1% 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	-	-	0 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+ $1.14 10+ $0.864 25+ $0.812 50+ $0.76 100+ $0.708 250+ $0.62 More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.025ohm	WSK Series	2512 [6432 Metric]	1W	± 1%	Metal Film	-	-	± 35ppm/°C	6.35mm	-	3.18mm	0.635mm	-65°C	170°C	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+ $0.624 10+ $0.445 25+ $0.415 50+ $0.387 100+ $0.36	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+ $0.277 25+ $0.254 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	0.02ohm	CR Series	2512 [6432 Metric]	3W	± 1%	Metal Film	-	-	± 75ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	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+ $0.593 25+ $0.383 50+ $0.341 100+ $0.298 250+ $0.27 500+ $0.241 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	0.01ohm	CR Series	2512 [6432 Metric]	3W	± 1%	Metal Film	-	-	± 75ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	AEC-Q200	-

ERJ14BSFR10U	63W0518 Data Sheet + RoHS Date/Lot Code	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+ $0.621 100+ $0.417 1000+ $0.259 5000+ $0.22 10000+ $0.217 25000+ $0.077 More Pricing...	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	0	0	0	0	0	-	-	0	0	-	0	0	-55°C	125°C	0	-

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+ $0.801 25+ $0.624 50+ $0.537 100+ $0.448 250+ $0.399 500+ $0.349 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	-

RL1220S-R20-F	28K1616 Data Sheet + RoHS Date/Lot Code	SMD Current Sense Resistor, RL Series, 0.2 ohm, RL Series, 0805 [2012 Metric], 250 mW, ± 1% SUSUMU You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.312 25+ $0.137 50+ $0.10 100+ $0.061	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	-	-	0 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, WSLP Series, 0.01 ohm, WSL Series, 1206 [3216 Metric], 1 W, ± 1% VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.197 25+ $0.197	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+ $0.988 10+ $0.986	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	-

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+ $0.42	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.001ohm	WSL Series	1206 [3216 Metric]	250mW	± 1%	Metal Strip	-	-	± 275ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	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+ $0.624 25+ $0.312 50+ $0.274 100+ $0.234 250+ $0.208 500+ $0.171 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	-	-

RL73H2AR22FTD	43AC4015 Data Sheet + RoHS Date/Lot Code	CURRENT SENSE RES, 0R22, 1%, 125 MW CGS - TE CONNECTIVITY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.214 25+ $0.188 50+ $0.162 100+ $0.136	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	0	0	0	0	0	-	-	0	0	-	0	0	-55°C	0	0	-

CSS2H-3920R-L200FE	67AC7862 Data Sheet + RoHS Date/Lot Code	CURRENT SENSE RES, 200 µOHM, 1%, 12 W BOURNS You previously purchased this product. View in Order History	View Additional Avnet Stock	Each (Supplied on Cut Tape)	1+ $1.86 10+ $1.57 25+ $1.48 50+ $1.38 100+ $1.29 250+ $1.15 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: 1) Add	200µohm	CSS2H-3920	3921 [1052 Metric]	12W	± 1%	Metal Strip	-	-	± 50ppm/°C	10mm	-	5.2mm	2.5mm	-55°C	170°C	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+ $0.894 10+ $0.777 25+ $0.699 50+ $0.62 100+ $0.542	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	-

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+ $0.863 25+ $0.658 50+ $0.568 100+ $0.477 250+ $0.414	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	500µohm	WSLF Series	2512 [6432 Metric]	6W	± 1%	Metal Strip	-	-	± 200ppm/°C	6.35mm	-	3.02mm	0.35mm	-65°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+ $0.302 25+ $0.258 50+ $0.214 100+ $0.171	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	0	0	0	0	0	-	-	0	0	-	0	0	-55°C	0	0	-

RL0603FR-070R02L	82AH8696 Data Sheet + RoHS Date/Lot Code	RES, 0R02, 1%, 0.1W, 0603, THICK FILM ROHS COMPLIANT: YES YAGEO You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.293 25+ $0.259 50+ $0.224 100+ $0.189	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	RL Series	0603 [1608 Metric]	0	± 1%	Thick Film	-	-	± 1500ppm/°C	0	-	0	0	-55°C	0	AEC-Q200	-

PA2512FKF7W0R003E	82AH7695 Data Sheet + RoHS Date/Lot Code	RES, AEC-Q200, 0R003, 1%, 2W, 2512 ROHS COMPLIANT: YES YAGEO You previously purchased this product. View in Order History	View Additional Avnet Stock	Each (Supplied on Cut Tape)	10+ $0.435 25+ $0.397 50+ $0.359 100+ $0.321	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	PA_E Series	2512 [6432 Metric]	0	± 1%	Metal Strip	-	-	± 100ppm/°C	0	-	0	0	-55°C	0	AEC-Q200	-

RCWE2512R500FKEA	14AJ2653 Data Sheet + RoHS	RES, 0R5, 2W, 2512, THICK FILM ROHS COMPLIANT: YES VISHAY You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	1+ $0.738 10+ $0.45 25+ $0.416 50+ $0.383 100+ $0.348	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	0.5ohm	RCWE	2512 [6432 Metric]	2W	± 1%	Thick Film	-	-	± 100ppm/°C	6.3mm	-	3.15mm	0.6mm	-55°C	155°C	AEC-Q200	-

CFG0612-FX-R010ELF	29AH2286 Data Sheet + RoHS Date/Lot Code	RES, 0R01, 1W, 1206W, METAL FOIL BOURNS You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.19 25+ $0.161 50+ $0.132 100+ $0.103	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	0.01ohm	CFG	1206 Wide	1W	± 1%	Metal Foil	-	-	± 100ppm/°C	1.6mm	-	3.2mm	0.7mm	-55°C	155°C	-	-

LTR18EZPFL1R00	39AH0796 Data Sheet + RoHS Date/Lot Code	RES, 1R, 1%, 0612, 1.5W ROHS COMPLIANT: YES ROHM You previously purchased this product. View in Order History		Each (Supplied on Cut Tape)	10+ $0.499 25+ $0.43 50+ $0.361 100+ $0.291 250+ $0.249 500+ $0.205 1000+ $0.162 More Pricing...	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	LTR	0	0	± 1%	Thick Film	-	-	± 100ppm/°C	0	-	0	0	-55°C	0	AEC-Q200	-