Current Sense Resistors

Panasonic offers a wide variety of Thick Film Current Sense Resistors (ERJ-B1, B2, xB, xBW, xCW) in a large range of case sizes and wide terminal types for high solder joint reliability. ERJ Current Sense Resistors feature power ratings up to 2W with low resistance ratings from 5mΩ to 10Ω. Panasonic provides a wide line of case size options that range from 0402 to 2512 for conventional terminals and 0612 to 1020 for wide terminals.

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Qty. RoHS ECAD Model Packaging
Series
Resistance
Power Rating
Tolerance
Temperature Coefficient
Case Code - in
Case Code - mm
Length
Width
Height
Minimum Operating Temperature
Maximum Operating Temperature
Technology
Termination
Termination Style
Qualification
Panasonic Current Sense Resistors - SMD 1020 0.15ohms 1% Tol AEC-Q200
Datasheet
4,514In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-Bx 150 mOhms 2 W 1 % 100 PPM / C 1020 (Reversed) 2550 (Reversed) 2.5 mm (0.098 in) 5 mm (0.197 in) 0.55 mm (0.022 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD High Power Chip Res 0612
Datasheet
19,996In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-Bx 10 Ohms 1 W 1 % 100 PPM / C 0612 (Reversed) 1632 (Reversed) 1.6 mm (0.063 in) 3.2 mm (0.126 in) 0.55 mm (0.022 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0612 4.7ohms 1% Tol AEC-Q200
Datasheet
11,563In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-Bx 4.7 Ohms 1 W 1 % 100 PPM / C 0612 (Reversed) 1632 (Reversed) 1.6 mm (0.063 in) 3.2 mm (0.126 in) 0.55 mm (0.022 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0612 0.33ohms 1% Tol AEC-Q200
Datasheet
10,720In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-Bx 330 mOhms 1 W 1 % 100 PPM / C 0612 (Reversed) 1632 (Reversed) 1.6 mm (0.063 in) 3.2 mm (0.126 in) 0.55 mm (0.022 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 1.3ohm 1% Curr Sense AEC-Q200
Datasheet
3,229In Stock
10,000Expected 2026/04/27
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 1.3 Ohms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 2.4ohm 1% Curr Sense AEC-Q200
Datasheet
4,855In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 2.4 Ohms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 3.6ohm 1% Curr Sense AEC-Q200
Datasheet
4,768In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 3.6 Ohms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 3.9 OHM 1% 1/2W
Datasheet
8,115In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 3.9 Ohms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 4.7ohm 1% Curr Sense AEC-Q200
Datasheet
4,768In Stock
10,000Expected 2026/03/23
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 4.7 Ohms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 0.27ohm 1% Curr Sense AEC-Q200
Datasheet
1,384In Stock
10,000Expected 2026/02/25
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 270 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 0.43ohm 1% Curr Sense AEC-Q200
Datasheet
3,545In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 430 mOhms 500 mW (1/2 W) 1 % 100 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 0.3ohm 5% Curr Sense AEC-Q200
Datasheet
1,521In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 300 mOhms 500 mW (1/2 W) 5 % 200 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 0.33ohm 5% Curr Sense AEC-Q200
Datasheet
3,982In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 330 mOhms 500 mW (1/2 W) 5 % 200 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD .2 OHM 1% 1/2W
Datasheet
4,143In Stock
10,000Expected 2026/03/30
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 200 mOhms 500 mW (1/2 W) 1 % 200 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 1210 0.2ohm 5% Curr Sense AEC-Q200
Datasheet
1,671In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 200 mOhms 500 mW (1/2 W) 5 % 200 PPM / C 1210 3225 3.2 mm (0.126 in) 2.5 mm (0.098 in) 0.6 mm (0.024 in) - 55 C + 155 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 1.0ohm 1% Curr Sense AEC-Q200
Datasheet
24,256In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 1 Ohms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.24ohm 1% Curr Sense AEC-Q200
Datasheet
8,847In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 240 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.36ohm 1% Curr Sense AEC-Q200
Datasheet
4,809In Stock
10,000Expected 2026/05/07
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 360 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.39ohm 1% Curr Sense AEC-Q200
Datasheet
17,528In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 390 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.43ohm 1% Curr Sense AEC-Q200
Datasheet
3,500In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 430 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.47ohm 1% Curr Sense AEC-Q200
Datasheet
3,936In Stock
10,000Expected 2026/02/13
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 470 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.51ohm 1% Curr Sense AEC-Q200
Datasheet
13,042In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 510 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.56ohm 1% Curr Sense AEC-Q200
Datasheet
12,508In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 560 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.62ohm 1% Curr Sense AEC-Q200
Datasheet
7,449In Stock
40,000Expected 2026/03/30
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 620 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200
Panasonic Current Sense Resistors - SMD 0402 0.68ohm 1% Curr Sense AEC-Q200
Datasheet
21,636In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 10,000

Reel, Cut Tape, MouseReel ERJ-BQ/BS 680 mOhms 166 mW (1/6 W) 1 % 250 PPM / C 0402 1005 1 mm (0.039 in) 0.5 mm (0.02 in) 0.35 mm (0.014 in) - 55 C + 125 C Thick Film 2 Terminal SMD/SMT AEC-Q200