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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	Order Code	Description / Manufacturer	Price For	Price	Quantity	Resistance	Product Range	Resistor Case / Package	Power Rating	Resistance Tolerance	Resistor Technology	Resistor Type	Temperature Coefficient	Product Length	Voltage Rating	Product Width	Product Height	Operating Temperature Min	Operating Temperature Max	Qualification
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WSL3637R0100FEA	2395994 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSL3637 Series, 3637 [9194 Metric], 3 W, ± 1%, 4-Terminal VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2395994 2395994RL in Re-reel	10+ HK$3.43	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.01ohm	WSL3637	3637 [9194 Metric]	3W	± 1%	Metal Strip	-	± 50ppm/°C	9.14mm	-	9.4mm	0.635mm	-65°C	170°C	AEC-Q200
WSLP12065L000FEA	2420761 Data Sheet + RoHS	SMD Current Sense Resistor, 0.005 ohm, WSLP, 1206 [3216 Metric], 1 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2420761 2420761RL in Re-reel	10+ HK$6.31 100+ HK$4.24 500+ HK$3.06 1000+ HK$2.48 2000+ HK$2.40 4000+ HK$2.37 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.005ohm	WSLP	1206 [3216 Metric]	1W	± 1%	Metal Strip	-	± 110ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	AEC-Q200
WSLP12065L000FEA	2420761RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.005 ohm, WSLP, 1206 [3216 Metric], 1 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2420761RL 2420761 in Cut Tape	100+ HK$4.24 500+ HK$3.06 1000+ HK$2.48 2000+ HK$2.40 4000+ HK$2.37	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	0.005ohm	WSLP	1206 [3216 Metric]	1W	± 1%	Metal Strip	-	± 110ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	AEC-Q200
WSL3637R0100FEA	2395994RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSL3637 Series, 3637 [9194 Metric], 3 W, ± 1%, 4-Terminal VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2395994RL 2395994 in Cut Tape	10+ HK$3.43	Restricted Item Minimum order of 100 items Multiples of 10 only Please enter a valid quantity Add Min: 100 Mult: 10	0.01ohm	WSL3637	3637 [9194 Metric]	3W	± 1%	Metal Strip	-	± 50ppm/°C	9.14mm	-	9.4mm	0.635mm	-65°C	170°C	AEC-Q200
SR733ATTER100F	3542382RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, SR73, 2512 [6432 Metric], 1 W, ± 1%, Thick Film KOA You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:3542382RL 3542382 in Cut Tape	100+ HK$3.41 500+ HK$2.84 1000+ HK$2.68	Restricted Item Minimum order of 100 items Multiples of 10 only Please enter a valid quantity Add Min: 100 Mult: 10	0.1ohm	SR73	2512 [6432 Metric]	1W	± 1%	Thick Film	-	± 100ppm/°C	6.3mm	-	3.1mm	0.6mm	-55°C	150°C	AEC-Q200

SR733ATTER100F	3542382 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, SR73, 2512 [6432 Metric], 1 W, ± 1%, Thick Film KOA You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:3542382 3542382RL in Re-reel	10+ HK$4.52 100+ HK$3.41 500+ HK$2.84 1000+ HK$2.68	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	SR73	2512 [6432 Metric]	1W	± 1%	Thick Film	-	± 100ppm/°C	6.3mm	-	3.1mm	0.6mm	-55°C	150°C	AEC-Q200

ERJ8CWFR010V	2145283 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, ERJ8CW, 1206 [3216 Metric], 1 W, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2145283 2145283RL in Re-reel 2692845 in Full Reel	10+ HK$3.55 50+ HK$2.01 100+ HK$1.49 500+ HK$1.08 1000+ HK$0.822	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.01ohm	ERJ8CW	1206 [3216 Metric]	1W	± 1%	Thick Film	-	± 75ppm/°C	3.2mm	-	1.6mm	0.65mm	-55°C	125°C	AEC-Q200

CRM2512-FX-R100ELF	1865265 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, CRM, 2512 [6432 Metric], 2 W, ± 1%, Thick Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1865265 1865265RL in Re-reel	10+ HK$2.36 100+ HK$1.94 500+ HK$1.74	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	CRM	2512 [6432 Metric]	2W	± 1%	Thick Film	-	± 100ppm/°C	6.3mm	-	3.1mm	0.6mm	-55°C	155°C	-

ERJ8BWFR100V	1577547 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, ERJ8BW, 1206 [3216 Metric], 1 W, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1577547 1577547RL in Re-reel	10+ HK$3.45 100+ HK$2.85 500+ HK$2.01 1000+ HK$1.61 5000+ HK$1.60 10000+ HK$1.59 25000+ HK$1.57 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	ERJ8BW	1206 [3216 Metric]	1W	± 1%	Thick Film	-	± 100ppm/°C	3.2mm	-	1.6mm	0.65mm	-55°C	155°C	AEC-Q200

WSLP1206R0100FEA	2420762 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSLP, 1206 [3216 Metric], 1 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2420762 2420762RL in Re-reel	10+ HK$3.92 25+ HK$3.36 50+ HK$3.02 100+ HK$2.64 250+ HK$2.35 500+ HK$1.94 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.01ohm	WSLP	1206 [3216 Metric]	1W	± 1%	Metal Strip	-	± 75ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	AEC-Q200

CSS2H-3920R-L200FE	2908511 Data Sheet + RoHS	SMD Current Sense Resistor, 200 µohm, CSS2H-3920, 3921 [1052 Metric], 12 W, ± 1%, Metal Strip BOURNS You previously purchased this product. View in Order History	Each	1+ HK$16.73 10+ HK$14.81 25+ HK$13.73 50+ HK$12.92 100+ HK$11.31 250+ HK$9.69 500+ HK$8.08 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	12W	-	Metal Strip	-	-	10mm	-	5.2mm	2.5mm	-55°C	170°C	AEC-Q200

CRA2512-FZ-R010ELF	1435947 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, CR, 2512 [6432 Metric], 3 W, ± 1%, Metal Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1435947 1435947RL in Re-reel 2691930 in Full Reel	10+ HK$3.83 25+ HK$2.99 50+ HK$2.53 100+ HK$1.99 250+ HK$1.72	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.01ohm	CR	2512 [6432 Metric]	3W	± 1%	Metal Film	-	± 50ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	AEC-Q200

CRA2512-FZ-R100ELF	1435952 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, CR, 2512 [6432 Metric], 3 W, ± 1%, Metal Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1435952 1435952RL in Re-reel	10+ HK$2.62 100+ HK$1.77 500+ HK$1.70	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	CR	2512 [6432 Metric]	3W	± 1%	Metal Film	-	± 50ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	AEC-Q200

CRA2512-FZ-R020ELF	1435948 Data Sheet + RoHS	SMD Current Sense Resistor, 0.02 ohm, CR, 2512 [6432 Metric], 3 W, ± 1%, Metal Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1435948 1435948RL in Re-reel 2691931 in Full Reel	10+ HK$2.63 100+ HK$1.76 500+ HK$1.72	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.02ohm	CR	2512 [6432 Metric]	3W	± 1%	Metal Film	-	± 50ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	AEC-Q200

CRA2512-FZ-R050ELF	1435950 Data Sheet + RoHS	SMD Current Sense Resistor, 0.05 ohm, CR, 2512 [6432 Metric], 3 W, ± 1%, Metal Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1435950 1435950RL in Re-reel	10+ HK$2.63 100+ HK$1.76 500+ HK$1.70	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	-	-	-	3W	-	Metal Film	-	-	6.4mm	-	3.2mm	0.7mm	-55°C	-	AEC-Q200

CRM2512-FX-R100ELF	1865265RL Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, CRM, 2512 [6432 Metric], 2 W, ± 1%, Thick Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:1865265RL 1865265 in Cut Tape	100+ HK$1.94 500+ HK$1.74	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	0.1ohm	CRM	2512 [6432 Metric]	2W	± 1%	Thick Film	-	± 100ppm/°C	6.3mm	-	3.1mm	0.6mm	-55°C	155°C	-

WSL2010R2000FEA	2368408 Data Sheet + RoHS	METAL STRIP RESISTOR, 0.2OHM, 1%, 2010, FULL REEL VISHAY You previously purchased this product. View in Order History	Each (Supplied on Full Reel) Full Reel	4000+ HK$3.20	Restricted Item Minimum order of 4000 items Multiples of 4000 only Please enter a valid quantity Add Min: 4000 Mult: 4000	0.2ohm	WSL Series	2010 [5025 Metric]	500mW	± 1%	Metal Strip	-	± 75ppm/°C	5.08mm	-	2.54mm	0.635mm	-65°C	170°C	AEC-Q200

CRM2512-FX-R200ELF	2309096 Data Sheet + RoHS	SMD Current Sense Resistor, 0.2 ohm, CRM, 2512 [6432 Metric], 2 W, ± 1%, Thick Film BOURNS You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2309096 2309096RL in Re-reel	1+ HK$1.58	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.2ohm	CRM	2512 [6432 Metric]	2W	± 1%	Thick Film	-	± 100ppm/°C	6.3mm	-	3.1mm	0.6mm	-55°C	155°C	-

ERJ-8CWJR025V	3593118 Data Sheet + RoHS	CURRENT SENSE RESISTOR, 0.025OHM, 1W, 5% PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ HK$3.95 10+ HK$3.02 50+ HK$1.71 100+ HK$1.27 500+ HK$0.918 1000+ HK$0.699 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.025ohm	AEC-Q200 ERJ8CW Series	1206 [3216 Metric]	1W	± 5%	Thick Film	-	± 50ppm/°C	3.2mm	-	1.6mm	0.65mm	-55°C	125°C	AEC-Q200

WSR5R0100FEA	1107476 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSR, 4527 [11470 Metric], 5 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1107476 1107476RL in Re-reel	1+ HK$21.29 10+ HK$18.91 25+ HK$17.53 50+ HK$16.50 100+ HK$14.44 250+ HK$12.38 500+ HK$10.71 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	WSR	4527 [11470 Metric]	5W	± 1%	Metal Strip	-	± 75ppm/°C	11.56mm	-	6.98mm	2.41mm	-65°C	275°C	AEC-Q200

ERJ3RSFR10V	1717759 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, ERJ3R, 0603 [1608 Metric], 100 mW, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1717759 1717759RL in Re-reel	10+ HK$1.93 25+ HK$1.40 50+ HK$1.02 100+ HK$0.751 250+ HK$0.576 500+ HK$0.454 1000+ HK$0.396 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	ERJ3R	0603 [1608 Metric]	100mW	± 1%	Thick Film	-	± 300ppm/°C	1.6mm	-	0.85mm	0.45mm	-55°C	125°C	AEC-Q200

LRCS0805-0R5FT5	1506145 Data Sheet + RoHS	SMD Current Sense Resistor, 0.5 ohm, LRCS, 0805 [2012 Metric], 250 mW, ± 1%, Metal Film TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1506145 1506145RL in Re-reel	10+ HK$3.92 100+ HK$2.49 500+ HK$2.15 1000+ HK$1.95 5000+ HK$1.66 10000+ HK$0.874 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.5ohm	LRCS	0805 [2012 Metric]	250mW	± 1%	Metal Film	-	± 300ppm/°C	2.01mm	-	1.25mm	0.55mm	-55°C	155°C	-

WSR3R2000FEA.	2448761 Data Sheet RoHS	RES, METAL STRIP, 0.2OHM, 1%, 4527 VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ HK$3.73	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.2ohm	WSR Series	4527 [11470 Metric]	3W	± 1%	Metal Strip	-	± 75ppm/°C	11.56mm	-	6.98mm	2.41mm	-65°C	275°C	AEC-Q200

WSLP1206R0500FEA.	2411837 Data Sheet RoHS	28X3249 VISHAY You previously purchased this product. View in Order History	Each (Supplied on Full Reel) Full Reel	4000+ HK$3.20	Restricted Item Minimum order of 4000 items Multiples of 4000 only Please enter a valid quantity Add Min: 4000 Mult: 4000	0.05ohm	WSL Series	1206 [3216 Metric]	1W	± 1%	Metal Strip	-	± 75ppm/°C	3.2mm	-	1.6mm	-	-	-	AEC-Q200

WSHP2818R0100FEB	2709461 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSHP2818, 2818 [7146 Metric], 10 W, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2709461 2709448 in Full Reel 2709461RL in Re-reel	1+ HK$13.51 10+ HK$11.96 25+ HK$10.99 50+ HK$10.03 100+ HK$8.67 250+ HK$7.33 500+ HK$6.33 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	WSHP2818	2818 [7146 Metric]	10W	± 1%	Metal Strip	-	± 75ppm/°C	7.1mm	-	4.6mm	1.5mm	-65°C	170°C	AEC-Q200