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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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CRM2010-FX-R910ELF	1865263 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 0.91 ohm, CRM, 2010 [5025 Metric], 1 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:1865263 1865263RL in Re-reel	10+ Php12.20 100+ Php7.70 1000+ Php6.80 4000+ Php5.90 8000+ Php4.20 24000+ Php4.10 48000+ Php4.00 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.91ohm	CRM	2010 [5025 Metric]	1W	± 1%	Thick Film	-	± 100ppm/°C	5mm	-	2.5mm	0.6mm	-55°C	155°C	-
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+ Php50.80 100+ Php44.00 250+ Php36.90 500+ Php31.10 1000+ Php25.80 2500+ Php25.30 4000+ Php24.70 8000+ Php24.10 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	WSL3637	3637 [9194 Metric]	3W	± 1%	Metal Strip	-	± 50ppm/°C	9.14mm	-	9.4mm	0.635mm	-65°C	170°C	AEC-Q200
MCLRP12DTWRR100	2828177 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, LRP, 2512 [6432 Metric], 3 W, ± 0.5%, Metal Strip MULTICOMP PRO You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2828177 2828177RL in Re-reel	10+ Php16.00 100+ Php14.40 500+ Php12.80 1000+ Php11.40 2000+ Php9.70	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	LRP	2512 [6432 Metric]	3W	± 0.5%	Metal Strip	-	± 75ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	-
MCLRP12DTDRR050	2828121 Data Sheet + RoHS	SMD Current Sense Resistor, 0.05 ohm, LRP, 2512 [6432 Metric], 3 W, ± 0.5%, Metal Strip MULTICOMP PRO You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2828121 2828121RL in Re-reel	10+ Php17.70 100+ Php16.00 500+ Php14.20 1000+ Php12.70 2000+ Php10.80	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.05ohm	LRP	2512 [6432 Metric]	3W	± 0.5%	Metal Strip	-	± 50ppm/°C	6.4mm	-	3.2mm	0.7mm	-55°C	170°C	-
WSL1206R0680FEA	3596987 Data Sheet + RoHS	SMD Current Sense Resistor, 0.068 ohm, WSL, 1206 [3216 Metric], 250 mW, ± 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:3596987 3596987RL in Re-reel	10+ Php31.20 100+ Php23.60 500+ Php18.90 1000+ Php15.40 2000+ Php15.20 4000+ Php14.50 8000+ Php14.40 24000+ Php13.40 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.068ohm	WSL	1206 [3216 Metric]	250mW	± 1%	Metal Strip	-	± 75ppm/°C	3.2mm	-	1.6mm	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+ Php38.50 25+ Php33.00 50+ Php29.70 100+ Php25.90 250+ Php23.20 500+ Php18.80 1000+ Php16.00 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

ERJ1TRSFR15U	1717948 Data Sheet + RoHS	SMD Current Sense Resistor, 0.15 ohm, ERJ1TR, 2512 [6432 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:1717948 1717948RL in Re-reel	10+ Php50.00 100+ Php48.80 2500+ Php22.20 4000+ Php21.40 8000+ Php20.80	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.15ohm	ERJ1TR	2512 [6432 Metric]	1W	± 1%	Thick Film	-	± 200ppm/°C	6.4mm	-	3.2mm	0.6mm	-55°C	125°C	AEC-Q200

WSR3R1000FEA	1107472 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, WSR, 4527 [11470 Metric], 3 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:1107472 1107472RL in Re-reel	1+ Php57.20 10+ Php42.40 100+ Php36.70 250+ Php31.00 500+ Php26.10 1000+ Php21.70 1500+ Php21.20 3000+ Php20.80 9000+ Php20.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.1ohm	WSR	4527 [11470 Metric]	3W	± 1%	Metal Strip	-	± 75ppm/°C	11.56mm	-	6.98mm	2.41mm	-65°C	275°C	AEC-Q200

LRMAP3920B-R0007FT	2501326 Data Sheet + RoHS	SMD Current Sense Resistor, 700 µohm, LRMAP3920, 3921 [1052 Metric], 5 W, ± 1%, Metal Alloy TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2501326 2501326RL in Re-reel	5+ Php42.40 100+ Php33.50 250+ Php28.30 500+ Php23.90 1000+ Php19.80 3000+ Php18.40 More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	700µohm	LRMAP3920	3921 [1052 Metric]	5W	± 1%	Metal Alloy	-	± 60ppm/°C	10mm	-	5.2mm	-	-55°C	170°C	AEC-Q200

WSL1206R0200FEB	3596984 Data Sheet + RoHS	SMD Current Sense Resistor, 0.02 ohm, WSL, 1206 [3216 Metric], 250 mW, ± 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:3596984 3596984RL in Re-reel	1+ Php47.20 10+ Php38.70 100+ Php29.10 500+ Php21.00 1000+ Php16.00 10000+ Php16.00 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	WSL	1206 [3216 Metric]	250mW	± 1%	Metal Strip	-	± 75ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	AEC-Q200

WSL2010R0220FEK	1653232 Data Sheet + RoHS	SMD Current Sense Resistor, 0.022 ohm, WSL, 2010 [5025 Metric], 500 mW, ± 1%, Metal Strip VISHAY You previously purchased this product. View in Order History	Each	1+ Php98.00 5+ Php86.00 10+ Php71.20 20+ Php64.00 40+ Php58.80 100+ Php54.80 500+ Php54.00 1000+ Php52.80 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.022ohm	WSL	2010 [5025 Metric]	500mW	± 1%	Metal Strip	-	± 75ppm/°C	5.08mm	-	2.54mm	0.635mm	-65°C	170°C	AEC-Q200

WSL1206R2000FEB	3596993 Data Sheet + RoHS	SMD Current Sense Resistor, 0.2 ohm, WSL, 1206 [3216 Metric], 250 mW, ± 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:3596993 3596993RL in Re-reel	1+ Php42.00 10+ Php34.60 100+ Php23.20 500+ Php20.80 1000+ Php18.30 2000+ Php15.80 5000+ Php12.80 10000+ Php12.40 25000+ Php12.20 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.2ohm	WSL	1206 [3216 Metric]	250mW	± 1%	Metal Strip	-	± 75ppm/°C	3.2mm	-	1.6mm	0.635mm	-65°C	170°C	AEC-Q200

ERJ1TRQF1R5U	1717962 Data Sheet + RoHS	SMD Current Sense Resistor, 1.5 ohm, ERJ1TR, 2512 [6432 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:1717962 1717962RL in Re-reel	10+ Php21.20 100+ Php16.50 500+ Php13.40 1000+ Php10.80 2000+ Php10.60 4000+ Php10.00 8000+ Php9.80 24000+ Php9.60 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	1.5ohm	ERJ1TR	2512 [6432 Metric]	1W	± 1%	Thick Film	-	± 100ppm/°C	6.4mm	-	3.2mm	0.6mm	-55°C	125°C	AEC-Q200

MCCSM12FTDTR051	2294092 Data Sheet + RoHS	SMD Current Sense Resistor, 0.051 ohm, CSR, 2512 [6432 Metric], 1 W, ± 1%, Metal Foil MULTICOMP PRO You previously purchased this product. View in Order History	Each	10+ Php19.00 100+ Php17.50 500+ Php16.50 1000+ Php14.80 2000+ Php13.20 4000+ Php12.20 20000+ Php11.60 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.051ohm	CSR	2512 [6432 Metric]	1W	± 1%	Metal Foil	-	± 50ppm/°C	6.3mm	-	3.15mm	0.55mm	-55°C	155°C	-

ERJ6RQF1R2V	1717800 Data Sheet + RoHS	SMD Current Sense Resistor, 1.2 ohm, ERJ6R, 0805 [2012 Metric], 125 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:1717800 1717800RL in Re-reel	10+ Php7.60 100+ Php3.50 1000+ Php2.70	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	1.2ohm	ERJ6R	0805 [2012 Metric]	125mW	± 1%	Thick Film	-	± 200ppm/°C	2.01mm	-	1.25mm	0.6mm	-55°C	125°C	AEC-Q200

LRF3W-R015JW	1100345 Data Sheet + RoHS	SMD Current Sense Resistor, 0.015 ohm, LRF3W, 1225 [3064 Metric], 3 W, ± 5%, Thick 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:1100345 1100345RL in Re-reel	1+ Php52.00 50+ Php42.40 100+ Php33.80 250+ Php27.60 1000+ Php24.50 1800+ Php22.20 9000+ Php21.20 18000+ Php19.90 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.015ohm	LRF3W	1225 [3064 Metric]	3W	± 5%	Thick Film	-	± 100ppm/°C	6.5mm	-	3.25mm	0.94mm	-55°C	155°C	AEC-Q200

LRMAP3920B-R0007FT	2501326RL Data Sheet + RoHS	SMD Current Sense Resistor, 700 µohm, LRMAP3920, 3921 [1052 Metric], 5 W, ± 1%, Metal Alloy TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2501326RL 2501326 in Cut Tape	100+ Php33.50 250+ Php28.30 500+ Php23.90 1000+ Php19.80 3000+ Php18.40	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	700µohm	LRMAP3920	3921 [1052 Metric]	5W	± 1%	Metal Alloy	-	± 60ppm/°C	10mm	-	5.2mm	-	-55°C	170°C	AEC-Q200

RCWE1206R220FKEA	1838655 Data Sheet + RoHS	SMD Current Sense Resistor, 0.22 ohm, RCWE, 1206 [3216 Metric], 500 mW, ± 1%, Thick Film VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1838655 1838655RL in Re-reel 2693325 in Full Reel	10+ Php11.80	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.22ohm	RCWE	1206 [3216 Metric]	500mW	± 1%	Thick Film	-	± 100ppm/°C	3.2mm	-	1.6mm	0.6mm	-55°C	155°C	AEC-Q200

WSLP3921L3000FEA	2420743RL Data Sheet + RoHS	SMD Current Sense Resistor, 300 µohm, WSLP3921, 3921 [1052 Metric], 9 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:2420743RL 2420743 in Cut Tape	100+ Php78.40 250+ Php68.80	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	300µohm	WSLP3921	3921 [1052 Metric]	9W	± 1%	Metal Strip	-	± 175ppm/°C	10mm	-	5.2mm	0.5mm	-65°C	170°C	AEC-Q200

WSHP28185L000FEB	2709460 Data Sheet + RoHS	SMD Current Sense Resistor, 0.005 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:2709460 2709447 in Full Reel 2709460RL in Re-reel	1+ Php190.80 10+ Php170.00 25+ Php157.60 50+ Php148.40 100+ Php130.00 250+ Php111.20 500+ Php95.60 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.005ohm	WSHP2818	2818 [7146 Metric]	10W	± 1%	Metal Strip	-	± 200ppm/°C	7.1mm	-	4.6mm	1.5mm	-65°C	170°C	AEC-Q200

RLP73K3AR16JTE	2805301 Data Sheet + RoHS	SMD Current Sense Resistor, 0.16 ohm, RL73, 2512 [6432 Metric], 2 W, ± 5%, Thick Film TE CONNECTIVITY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2805301 2805301RL in Re-reel	5+ Php19.70 100+ Php15.30 500+ Php12.40 1000+ Php10.00 2000+ Php9.60 4000+ Php9.40 10000+ Php9.20 24000+ Php9.00 More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.16ohm	RL73	2512 [6432 Metric]	2W	± 5%	Thick Film	-	± 200ppm/°C	6.35mm	-	3.15mm	0.74mm	-55°C	155°C	-

RL73K3AR22JTE	2991945 Data Sheet + RoHS	SMD Current Sense Resistor, 0.22 ohm, RL73, 2512 [6432 Metric], 1 W, ± 5%, Thick Film CGS - TE CONNECTIVITY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2991945 2991945RL in Re-reel	10+ Php27.20 25+ Php22.10 50+ Php19.20 100+ Php15.80 250+ Php13.80 500+ Php11.20 1000+ Php8.90 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.22ohm	RL73	2512 [6432 Metric]	1W	± 5%	Thick Film	-	± 200ppm/°C	6.35mm	-	3.1mm	0.6mm	-55°C	155°C	-

LRF3W-R015JW	1100345RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.015 ohm, LRF3W, 1225 [3064 Metric], 3 W, ± 5%, Thick Film TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:1100345RL 1100345 in Cut Tape	100+ Php33.80 250+ Php27.60 1000+ Php24.50 1800+ Php22.20 9000+ Php21.20 18000+ Php19.90 More Pricing...	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	0.015ohm	LRF3W	1225 [3064 Metric]	3W	± 5%	Thick Film	-	± 100ppm/°C	6.5mm	-	3.25mm	0.94mm	-55°C	155°C	AEC-Q200

ERJC1CFR062U	2353394 Data Sheet + RoHS	SMD Current Sense Resistor, 0.062 ohm, ERJC1, 2010 Wide, 2 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:2353394 2353394RL in Re-reel	10+ Php40.00 100+ Php28.90 500+ Php22.20 1000+ Php19.80 2500+ Php18.70 5000+ Php18.60 25000+ Php18.00 50000+ Php17.20 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.062ohm	ERJC1	2010 Wide	2W	± 1%	Thick Film	-	± 150ppm/°C	2.5mm	-	5mm	0.55mm	-55°C	155°C	AEC-Q200

MCS3264R020FER	2364018 Data Sheet + RoHS	SMD Current Sense Resistor, 0.02 ohm, MCS, 1225 [3264 Metric], 2 W, ± 1%, Metal Alloy OHMITE You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2364018 2364018RL in Re-reel 2449003 in Full Reel	10+ Php28.00 25+ Php18.60 100+ Php14.60 250+ Php12.40 500+ Php12.20 1000+ Php12.00 More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.02ohm	MCS	1225 [3264 Metric]	2W	± 1%	Metal Alloy	-	40ppm/°C	6.4mm	-	3.2mm	0.65mm	-	-	-