12.1ohm Chip SMD Resistors:

53 Products Found
We offer a wide range of Metal Film, Metal Foil, and Thick Film chip SMD resistors, with resistance values from 0.003Ω to 50GΩ and power ratings from 30mW to 50W.

How do I choose a chip SMD resistor?

Chip SMD resistors are commonly used for pull-up/pull-down operations to ensure a signal is at valid logic level when external devices are removed, voltage divisions, current limiting, and filtering signals at certain frequencies in high-pass/low-pass/band-pass filters. You can use 0Ω resistors as jumpers to disable a sub-section of a circuit. There are three kinds of Chip SMD Resistors:

  1. Thin Film or Metal Film resistors are used in high precision applications like audio, medical, or test equipment. They have lower variation (0.1%-2%), a lower temperature coefficient (5 ppm/K), and are less noisy compared to thick film resistors. However, they are more expensive.
  2. Thick Film resistors are the most common type of resistor, and are used for most applications. They have higher variation (1%-5%), a higher temperature coefficient (50 ppm/K), and are noisier than thin film resistors. If there are no specific performance requirements, thick film resistors are usually the preferred choice.
  3. There are also Metal Foil resistors which provide high rated power and excellent load life stability along with extremely low Temperature Coefficient of Resistance (TCR).

SMD resistor sizes

The shape and size of chip SMD resistors are standardized, with most manufacturers using the JEDEC standards. The size of chip SMD resistors is indicated by a numerical code, such as 0603. This code contains the length and width of the package. So, the imperial code 0603 indicates a length of 0.060" and a width of 0.030".

Although SMD package codes can be given in either imperial or metric units, the imperial code is used more often to indicate the package size. Confusingly, even when the imperial naming convention is used, the metric dimensions are often used during the design of the printed circuit boards (PCBs). In general, you can assume the code is in imperial units, but the dimensions used are in mm. The SMD resistor size used depends primarily on the required power rating, the minimum feature size of the PCB manufacturing, and the limitations of the pick-and-place equipment.

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3306255

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Each (Supplied on Full Reel)
Full Reel
5000+
HK$0.757
25000+
HK$0.749
50000+
HK$0.724
Min: 5000 / Mult: 5000
12.1ohm
± 1%
500mW
0805 [2012 Metric]
Thick Film (Double Sided)
High Power, Anti-Surge
ERJ-P6W Series
± 200ppm/°C
150V
2.01mm
1.25mm
-55°C
155°C
AEC-Q200
2302427

RoHS

Each (Supplied on Cut Tape)
Cut Tape
10+
HK$0.178
50+
HK$0.112
100+
HK$0.093
500+
HK$0.063
1000+
HK$0.055
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
100mW
0402 [1005 Metric]
Thick Film
Precision
ERJ-2RK Series
± 100ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
AEC-Q200
2302427RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
500+
HK$0.063
1000+
HK$0.055
5000+
HK$0.040
Min: 500 / Mult: 10
12.1ohm
± 1%
100mW
0402 [1005 Metric]
Thick Film
Precision
ERJ-2RK Series
± 100ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
AEC-Q200
2327029

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.807
100+
HK$0.609
500+
HK$0.512
1000+
HK$0.487
2500+
HK$0.449
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
660mW
1206 [3216 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P08 Series
± 100ppm/°C
500V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2139252

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.426
100+
HK$0.231
500+
HK$0.188
1000+
HK$0.146
2500+
HK$0.143
Min: 10 / Mult: 10
12.1ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2141173

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.261
50+
HK$0.143
100+
HK$0.105
500+
HK$0.066
1000+
HK$0.063
Min: 10 / Mult: 10
12.1ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
75V
1.55mm
0.85mm
-55°C
155°C
AEC-Q200
2138738

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.359
100+
HK$0.188
500+
HK$0.167
1000+
HK$0.146
2500+
HK$0.143
Min: 10 / Mult: 10
12.1ohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
150V
2mm
1.25mm
-55°C
155°C
AEC-Q200
2138738RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.167
1000+
HK$0.146
2500+
HK$0.143
Min: 500 / Mult: 10
12.1ohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
150V
2mm
1.25mm
-55°C
155°C
AEC-Q200
2141173RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.066
1000+
HK$0.063
Min: 500 / Mult: 10
12.1ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
75V
1.55mm
0.85mm
-55°C
155°C
AEC-Q200
2139252RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.188
1000+
HK$0.146
2500+
HK$0.143
Min: 500 / Mult: 10
12.1ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2327029RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.512
1000+
HK$0.487
2500+
HK$0.449
5000+
HK$0.394
Min: 500 / Mult: 10
12.1ohm
± 1%
660mW
1206 [3216 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P08 Series
± 100ppm/°C
500V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
3316342

RoHS

Each (Supplied on Full Reel)
Full Reel
5000+
HK$0.245
25000+
HK$0.240
50000+
HK$0.236
Min: 5000 / Mult: 5000
12.1ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
Sulfur Resistant
ERJ-U08 Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2344785

RoHS

Each (Supplied on Full Reel)
Full Reel
1000+
HK$2.820
5000+
HK$2.630
10000+
HK$2.580
Min: 1000 / Mult: 1000
12.1ohm
± 0.1%
100mW
0805 [2012 Metric]
Thin Film
Precision
RN73 Series
± 10ppm/°C
100V
2.01mm
1.25mm
-55°C
155°C
-
2838499RL

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
100+
HK$1.500
250+
HK$1.380
500+
HK$1.260
1000+
HK$1.050
Min: 100 / Mult: 1
12.1ohm
± 0.1%
100mW
0402 [1005 Metric]
Thin Film
High Power
RP73P Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
-
2838499

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$3.130
50+
HK$1.680
100+
HK$1.500
250+
HK$1.380
500+
HK$1.260
More Pricing...
Min: 1 / Mult: 1
12.1ohm
± 0.1%
100mW
0402 [1005 Metric]
Thin Film
High Power
RP73P Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
-
3229598

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$7.480
50+
HK$4.030
100+
HK$3.550
250+
HK$3.290
500+
HK$2.620
More Pricing...
Min: 1 / Mult: 1
12.1ohm
± 0.1%
200mW
0805 [2012 Metric]
Thin Film
Precision, Sulfur Resistant
RQ73 Series
± 10ppm/°C
100V
2.01mm
1.25mm
-55°C
155°C
AEC-Q200
3229598RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$3.550
250+
HK$3.290
500+
HK$2.620
1000+
HK$2.610
Min: 100 / Mult: 1
12.1ohm
± 0.1%
200mW
0805 [2012 Metric]
Thin Film
Precision, Sulfur Resistant
RQ73 Series
± 10ppm/°C
100V
2.01mm
1.25mm
-55°C
155°C
AEC-Q200
4149196

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.116
100+
HK$0.099
500+
HK$0.087
1000+
HK$0.074
2500+
HK$0.054
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
150V
2mm
1.25mm
-55°C
155°C
-
4149316

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.074
100+
HK$0.058
500+
HK$0.050
1000+
HK$0.042
2500+
HK$0.038
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
75V
1.6mm
0.8mm
-55°C
155°C
-
4149316RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.050
1000+
HK$0.042
2500+
HK$0.038
5000+
HK$0.033
Min: 500 / Mult: 10
12.1ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
75V
1.6mm
0.8mm
-55°C
155°C
-
4149196RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.087
1000+
HK$0.074
2500+
HK$0.054
5000+
HK$0.033
Min: 500 / Mult: 10
12.1ohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
150V
2mm
1.25mm
-55°C
155°C
-
2312446

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$2.050
100+
HK$1.050
500+
HK$0.814
1000+
HK$0.683
2500+
HK$0.589
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
500mW
1210 [3225 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P14 Series
± 100ppm/°C
200V
3.2mm
2.5mm
-55°C
155°C
AEC-Q200
2311955

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$1.470
100+
HK$0.798
500+
HK$0.666
1000+
HK$0.469
2500+
HK$0.416
More Pricing...
Min: 10 / Mult: 10
12.1ohm
± 1%
200mW
0603 [1608 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P03 Series
± 200ppm/°C
150V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
2330438

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$2.220
50+
HK$1.610
100+
HK$1.520
250+
HK$1.430
500+
HK$1.340
Min: 1 / Mult: 1
12.1ohm
± 0.1%
62.5mW
0402 [1005 Metric]
Thin Film
Precision Low TCR
CPF Series
± 25ppm/°C
25V
1.02mm
0.5mm
-55°C
155°C
-
2121361

RoHS

Each (Supplied on Full Reel)
Full Reel
Packaging Options
10000+
HK$0.086
50000+
HK$0.075
100000+
HK$0.062
Min: 10000 / Mult: 10000
12.1ohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/K
50V
1mm
0.5mm
-55°C
155°C
AEC-Q200
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