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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 (Incl GST)	Quantity	Resistance	Product Range	Resistor Case / Package	Power Rating	Resistance Tolerance	Resistor Technology	Temperature Coefficient	Product Length	Product Width	Product Height	Operating Temperature Min	Operating Temperature Max	Qualification
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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+ $0.433 ($0.48) 100+ $0.299 ($0.33) 250+ $0.28 ($0.31)	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
ERJL1WKF10CU	1577587 Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, ERJL1W, 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:1577587 1577587RL in Re-reel	5+ $1.13 ($1.24) 25+ $0.968 ($1.06) 100+ $0.806 ($0.89) 250+ $0.707 ($0.78) 500+ $0.596 ($0.66) 1000+ $0.496 ($0.55) More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.1ohm	ERJL1W	2512 [6432 Metric]	1W	± 1%	Thick Film	± 100ppm/°C	6.4mm	3.2mm	1.1mm	-55°C	125°C	AEC-Q200
TLRP3A20CR200FTE.	3782894 + RoHS	RES, 0R2, 1%, 2W, METAL STRIP, 2512 CGS - TE CONNECTIVITY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $0.89 ($0.98) 10+ $0.745 ($0.82) 25+ $0.639 ($0.70) 50+ $0.575 ($0.63) 100+ $0.501 ($0.55) 250+ $0.447 ($0.49) 500+ $0.362 ($0.40) 1000+ $0.293 ($0.32) 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	TLRP Series	2512 [6432 Metric]	2W	± 1%	Metal Strip	± 25ppm/°C	6.4mm	3.2mm	0.7mm	-55°C	170°C	AEC-Q200
RL1632R-R200-F	9377298 Data Sheet + RoHS	CURRENT SENSE RESISTOR, 0.2 OHM, 500mW, 1% SUSUMU You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $0.909 ($1.00) 10+ $0.655 ($0.72) 100+ $0.338 ($0.37) 250+ $0.285 ($0.31) 500+ $0.235 ($0.26) 1000+ $0.201 ($0.22) 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	RL Series	1206 [3216 Metric]	500mW	± 1%	Thin Film	0ppm/°C to +200ppm/°C	3.2mm	1.6mm	0.5mm	-55°C	125°C	-
ERJ8BQFR22V	1717871 Data Sheet + RoHS	SMD Current Sense Resistor, 0.22 ohm, ERJ8BQ, 1206 [3216 Metric], 500 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:1717871 1717871RL in Re-reel	10+ $0.483 ($0.53) 100+ $0.194 ($0.21) 1000+ $0.096 ($0.11) 2500+ $0.091 ($0.10)	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.22ohm	ERJ8BQ	1206 [3216 Metric]	500mW	± 1%	Thick Film	± 250ppm/°C	3.2mm	1.6mm	0.6mm	-55°C	125°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+ $0.247 ($0.27) 100+ $0.11 ($0.12) 500+ $0.084 ($0.09) 1000+ $0.082 ($0.09)	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

ULR2-R01FT2	1292496 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, ULR, 2512 [6432 Metric], 2 W, ± 1%, Metal Strip TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1292496 1292496RL in Re-reel	5+ $1.23 ($1.35) 25+ $1.07 ($1.18) 100+ $1.04 ($1.14) 250+ $0.795 ($0.87) 500+ $0.717 ($0.79) 1000+ $0.663 ($0.73) More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.01ohm	ULR	2512 [6432 Metric]	2W	± 1%	Metal Strip	± 50ppm/°C	6.35mm	3mm	0.6mm	-55°C	170°C	AEC-Q200

WSL2512R0100FEA	1107395 Data Sheet + RoHS	SMD Current Sense Resistor, 0.01 ohm, WSL, 2512 [6432 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:1107395 1107395RL in Re-reel	5+ $0.789 ($0.87) 100+ $0.609 ($0.67) 2000+ $0.607 ($0.67) 4000+ $0.596 ($0.66) 10000+ $0.581 ($0.64)	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.01ohm	WSL	2512 [6432 Metric]	1W	± 1%	Metal Strip	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200

WSL2512R0200FEA	1107397 Data Sheet + RoHS	SMD Current Sense Resistor, 0.02 ohm, WSL, 2512 [6432 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:1107397 1107397RL in Re-reel	5+ $0.743 ($0.82) 100+ $0.583 ($0.64) 2000+ $0.578 ($0.64) 4000+ $0.572 ($0.63) 10000+ $0.555 ($0.61)	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.02ohm	WSL	2512 [6432 Metric]	1W	± 1%	Metal Strip	± 75ppm/°C	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200

WSL2512R0200FEA18	2493389 Data Sheet + RoHS	RESISTOR, METAL STRIP, 0.02OHM, 1%, 2512 VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $2.05 ($2.26) 10+ $1.82 ($2.00) 25+ $1.67 ($1.84) 50+ $1.53 ($1.68) 100+ $1.32 ($1.45) 250+ $1.12 ($1.23) 500+ $0.937 ($1.03) 1000+ $0.823 ($0.91) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	2W	-	Metal Strip	-	6.35mm	3.18mm	0.635mm	-65°C	170°C	AEC-Q200

WSHM2818R0500FEA.	3618258 Data Sheet + RoHS	RES, 0R05, 7W, 2818, METAL STRIP VISHAY You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $1.92 ($2.11) 10+ $1.70 ($1.87) 25+ $1.57 ($1.73) 50+ $1.43 ($1.57) 100+ $1.24 ($1.36) 250+ $1.05 ($1.16) 500+ $0.877 ($0.96) 1000+ $0.771 ($0.85) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	-	-	7W	-	Metal Strip	-	7.1mm	4.6mm	1.5mm	-65°C	170°C	AEC-Q200

ERJ1TRQFR33U	1717952 Data Sheet + RoHS	SMD Current Sense Resistor, 0.33 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:1717952 1717952RL in Re-reel	10+ $0.594 ($0.65) 100+ $0.476 ($0.52) 500+ $0.385 ($0.42) 1000+ $0.311 ($0.34) 2000+ $0.302 ($0.33) 4000+ $0.293 ($0.32) 20000+ $0.287 ($0.32) 40000+ $0.282 ($0.31) More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.33ohm	ERJ1TR	2512 [6432 Metric]	1W	± 1%	Thick Film	± 200ppm/°C	6.4mm	3.2mm	0.6mm	-55°C	125°C	AEC-Q200

ERJ8BQFR22V	1717871RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.22 ohm, ERJ8BQ, 1206 [3216 Metric], 500 mW, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:1717871RL 1717871 in Cut Tape	100+ $0.194 ($0.21) 1000+ $0.096 ($0.11) 2500+ $0.091 ($0.10)	Restricted Item Minimum order of 500 items Multiples of 10 only Please enter a valid quantity Add Min: 500 Mult: 10	0.22ohm	ERJ8BQ	1206 [3216 Metric]	500mW	± 1%	Thick Film	± 250ppm/°C	3.2mm	1.6mm	0.6mm	-55°C	125°C	AEC-Q200

RL1206FR-7W0R33L	8067619 Data Sheet + RoHS	SMD Current Sense Resistor, 0.33 ohm, RL Series, 1206 [3216 Metric], 500 mW, ± 1%, Thick Film YAGEO You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:8067619 8067619RL in Re-reel 2693900 in Full Reel	10+ $0.496 ($0.55) 100+ $0.209 ($0.23) 1000+ $0.14 ($0.15)	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.33ohm	RL Series	1206 [3216 Metric]	500mW	± 1%	Thick Film	± 600ppm/°C	3.2mm	1.6mm	0.55mm	-55°C	125°C	AEC-Q200

ERJL1WKF10CU	1577587RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, ERJL1W, 2512 [6432 Metric], 1 W, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:1577587RL 1577587 in Cut Tape	100+ $0.806 ($0.89) 250+ $0.707 ($0.78) 500+ $0.596 ($0.66) 1000+ $0.496 ($0.55)	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	0.1ohm	ERJL1W	2512 [6432 Metric]	1W	± 1%	Thick Film	± 100ppm/°C	6.4mm	3.2mm	1.1mm	-55°C	125°C	AEC-Q200

WSR21R000FEA	1107436 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 1 ohm, WSR, 4527 [11470 Metric], 2 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:1107436 1107436RL in Re-reel	1+ $2.01 ($2.21) 10+ $1.78 ($1.96) 25+ $1.47 ($1.62) 100+ $1.24 ($1.36) 250+ $1.08 ($1.19) 500+ $1.02 ($1.12) 1500+ $0.826 ($0.91) 3000+ $0.807 ($0.89) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1ohm	WSR	4527 [11470 Metric]	2W	± 1%	Metal Strip	± 75ppm/°C	11.56mm	6.98mm	2.41mm	-65°C	275°C	AEC-Q200

ERJ8BSFR13V	2493034 Data Sheet + RoHS	SMD Current Sense Resistor, 0.13 ohm, ERJ8BS, 1206 [3216 Metric], 500 mW, ± 1%, Thick Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	10+ $0.831 ($0.91) 100+ $0.349 ($0.38) 1000+ $0.193 ($0.21) 2500+ $0.181 ($0.20)	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	-	-	1206 [3216 Metric]	-	-	Thick Film	-	3.2mm	1.6mm	0.6mm	-55°C	155°C	AEC-Q200

MCCSM12FTDTR033	2294089 Data Sheet + RoHS	SMD Current Sense Resistor, 0.033 ohm, CSR, 2512 [6432 Metric], 1 W, ± 1%, Metal Foil MULTICOMP PRO You previously purchased this product. View in Order History	Each	10+ $0.914 ($1.01) 100+ $0.59 ($0.65) 500+ $0.413 ($0.45) 1000+ $0.34 ($0.37) 2000+ $0.323 ($0.36) 4000+ $0.307 ($0.34) 20000+ $0.299 ($0.33) 40000+ $0.29 ($0.32) More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.033ohm	CSR	2512 [6432 Metric]	1W	± 1%	Metal Foil	± 50ppm/°C	6.3mm	3.15mm	0.55mm	-55°C	155°C	-

ERJMS4SF3M0U	2484765RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.003 ohm, ERJMS4S, 2512 [6432 Metric], 3 W, ± 1%, Metal Film PANASONIC You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2484765RL 2484765 in Cut Tape	100+ $0.895 ($0.98) 250+ $0.778 ($0.86) 500+ $0.646 ($0.71) 1000+ $0.568 ($0.62) 2000+ $0.567 ($0.62) 4000+ $0.555 ($0.61) More Pricing...	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	-	-	-	3W	-	Metal Film	-	6.4mm	3.2mm	1.2mm	-65°C	170°C	AEC-Q200

WSL2010R1200FEB	1107378 Data Sheet + RoHS	SMD Current Sense Resistor, 0.12 ohm, WSL, 2010 [5025 Metric], 500 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:1107378 1107378RL in Re-reel	1+ $0.803 ($0.88) 50+ $0.722 ($0.79) 100+ $0.639 ($0.70) 250+ $0.554 ($0.61) 500+ $0.459 ($0.50) 1000+ $0.443 ($0.49) 5000+ $0.433 ($0.48) 10000+ $0.424 ($0.47) More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	0.12ohm	WSL	2010 [5025 Metric]	500mW	± 1%	Metal Strip	± 70ppm/°C	5.08mm	2.54mm	0.635mm	-65°C	170°C	AEC-Q200

RL1220S-R20-F	1653327 Data Sheet + RoHS	SMD Current Sense Resistor, 0.2 ohm, RL, 0805 [2012 Metric], 333 mW, ± 1%, Thin Film SUSUMU You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1653327 1653327RL in Re-reel 2692908 in Full Reel	10+ $0.377 ($0.41) 50+ $0.199 ($0.22) 100+ $0.148 ($0.16) 250+ $0.114 ($0.13) 500+ $0.09 ($0.10) 1000+ $0.071 ($0.08) More Pricing...	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.2ohm	RL	0805 [2012 Metric]	333mW	± 1%	Thin Film	0ppm/°C to +200ppm/°C	2.01mm	1.25mm	0.4mm	-55°C	170°C	-

ULR25-R005FT2	1292501RL Data Sheet + RoHS	SMD Current Sense Resistor, 0.005 ohm, ULR, 2512 [6432 Metric], 2.5 W, ± 1%, Metal Strip TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:1292501RL 1292501 in Cut Tape 2693556 in Full Reel	50+ $0.996 ($1.10) 250+ $0.946 ($1.04) 500+ $0.87 ($0.96) 1000+ $0.853 ($0.94)	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	0.005ohm	ULR	2512 [6432 Metric]	2.5W	± 1%	Metal Strip	± 50ppm/°C	6.35mm	3mm	0.6mm	-55°C	170°C	AEC-Q200

ULR2-R008FT2	1292494 Data Sheet + RoHS	SMD Current Sense Resistor, 0.008 ohm, ULR, 2512 [6432 Metric], 2 W, ± 1%, Metal Strip TT ELECTRONICS / WELWYN You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:1292494 1292494RL in Re-reel	5+ $0.988 ($1.09) 50+ $0.868 ($0.95) 250+ $0.831 ($0.91) 500+ $0.752 ($0.83) 1000+ $0.657 ($0.72) 2000+ $0.644 ($0.71) 10000+ $0.631 ($0.69) 20000+ $0.618 ($0.68) More Pricing...	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	0.008ohm	ULR	2512 [6432 Metric]	2W	± 1%	Metal Strip	± 50ppm/°C	6.35mm	3mm	0.6mm	-55°C	170°C	AEC-Q200

CRM0805-FX-R100ELF	1865233 Data Sheet Data Sheet + RoHS	SMD Current Sense Resistor, 0.1 ohm, CRM, 0805 [2012 Metric], 250 mW, ± 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:1865233 1865233RL in Re-reel 2691941 in Full Reel	10+ $0.402 ($0.44) 50+ $0.219 ($0.24) 100+ $0.199 ($0.22)	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.1ohm	CRM	0805 [2012 Metric]	250mW	± 1%	Thick Film	± 100ppm/°C	2.01mm	1.25mm	0.5mm	-55°C	155°C	-

RL1206FR-070R3L	3497034 Data Sheet + RoHS	SMD Current Sense Resistor, 0.3 ohm, RL Series, 1206 [3216 Metric], 250 mW, ± 1%, Thick Film YAGEO You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	10+ $0.274 ($0.30) 100+ $0.162 ($0.18) 1000+ $0.106 ($0.12) 2500+ $0.092 ($0.10)	Restricted Item Minimum order of 10 items Multiples of 10 only Please enter a valid quantity Add Min: 10 Mult: 10	0.3ohm	RL Series	1206 [3216 Metric]	250mW	± 1%	Thick Film	± 600ppm/°C	3.2mm	1.6mm	0.55mm	-55°C	155°C	AEC-Q200