1.21kohm Chip SMD Resistors:

128 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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3495989

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Each (Supplied on Cut Tape)
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10+
HK$0.074
100+
HK$0.069
500+
HK$0.064
1000+
HK$0.058
2500+
HK$0.057
Min: 10 / Mult: 10
1.21kohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
150V
2mm
1.25mm
-55°C
155°C
-
3495753

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Each (Supplied on Cut Tape)
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10+
HK$0.074
100+
HK$0.066
500+
HK$0.058
1000+
HK$0.050
2500+
HK$0.049
Min: 10 / Mult: 10
1.21kohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
75V
1.6mm
0.8mm
-55°C
155°C
-
2908254

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Each (Supplied on Cut Tape)
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10+
HK$0.124
100+
HK$0.066
500+
HK$0.042
1000+
HK$0.033
2500+
HK$0.026
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Min: 10 / Mult: 10
1.21kohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
CR Series
± 100ppm/°C
50V
1.6mm
0.85mm
-55°C
155°C
-
1652852

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10+
HK$0.169
100+
HK$0.119
500+
HK$0.110
1000+
HK$0.068
2500+
HK$0.065
More Pricing...
Min: 10 / Mult: 10
1.21kohm
± 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
3539669

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10+
HK$0.140
250+
HK$0.099
1000+
HK$0.050
5000+
HK$0.033
12500+
HK$0.025
More Pricing...
Min: 10 / Mult: 10
1.21kohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
Precision
RK73H Series
± 100ppm/K
75V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
2908389

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Each (Supplied on Cut Tape)
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HK$0.133
100+
HK$0.075
500+
HK$0.064
1000+
HK$0.052
2500+
HK$0.047
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Min: 10 / Mult: 10
1.21kohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
CR Series
± 100ppm/°C
150V
2.01mm
1.25mm
-55°C
155°C
-
1652766

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10+
HK$0.219
100+
HK$0.119
500+
HK$0.110
2500+
HK$0.094
5000+
HK$0.078
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Min: 10 / Mult: 10
1.21kohm
± 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
1652766RL

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500+
HK$0.110
2500+
HK$0.094
5000+
HK$0.078
10000+
HK$0.062
Min: 500 / Mult: 10
1.21kohm
± 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
1652852RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.110
1000+
HK$0.068
2500+
HK$0.065
5000+
HK$0.062
Min: 500 / Mult: 10
1.21kohm
± 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
3578824RL

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100+
HK$3.110
250+
HK$3.110
500+
HK$2.300
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HK$2.050
5000+
HK$2.020
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Min: 100 / Mult: 1
1.21kohm
± 0.1%
31.25mW
0201 [0603 Metric]
Thin Film
Precision
CPF Series
± 25ppm/°C
15V
0.6mm
0.3mm
-55°C
155°C
-
3496162

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10+
HK$0.148
100+
HK$0.107
500+
HK$0.095
1000+
HK$0.083
2500+
HK$0.082
Min: 10 / Mult: 10
1.21kohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
200V
3.1mm
1.6mm
-55°C
155°C
-
3495544

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.099
100+
HK$0.074
500+
HK$0.054
2500+
HK$0.033
5000+
HK$0.032
Min: 10 / Mult: 10
1.21kohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
50V
1mm
0.5mm
-55°C
155°C
-
3495753RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.058
1000+
HK$0.050
2500+
HK$0.049
Min: 500 / Mult: 10
1.21kohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
75V
1.6mm
0.8mm
-55°C
155°C
-
3495544RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.054
2500+
HK$0.033
5000+
HK$0.032
Min: 500 / Mult: 10
1.21kohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
50V
1mm
0.5mm
-55°C
155°C
-
3495989RL

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Each (Supplied on Cut Tape)
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Packaging Options
500+
HK$0.064
1000+
HK$0.058
2500+
HK$0.057
Min: 500 / Mult: 10
1.21kohm
± 1%
125mW
0805 [2012 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
150V
2mm
1.25mm
-55°C
155°C
-
3539669RL

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Each (Supplied on Cut Tape)
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Packaging Options
250+
HK$0.099
1000+
HK$0.050
5000+
HK$0.033
12500+
HK$0.025
25000+
HK$0.024
Min: 500 / Mult: 10
1.21kohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
Precision
RK73H Series
± 100ppm/K
75V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
3578824

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Each (Supplied on Cut Tape)
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1+
HK$6.590
50+
HK$3.520
100+
HK$3.110
250+
HK$3.110
500+
HK$2.300
More Pricing...
Min: 1 / Mult: 1
1.21kohm
± 0.1%
31.25mW
0201 [0603 Metric]
Thin Film
Precision
CPF Series
± 25ppm/°C
15V
0.6mm
0.3mm
-55°C
155°C
-
3496162RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.095
1000+
HK$0.083
2500+
HK$0.082
Min: 500 / Mult: 10
1.21kohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
RC_L Series
± 100ppm/°C
200V
3.1mm
1.6mm
-55°C
155°C
-
1140813RL

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Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
100+
HK$3.990
250+
HK$3.620
500+
HK$3.250
Min: 100 / Mult: 1
1.21kohm
± 0.1%
100mW
0805 [2012 Metric]
Thin Film
Precision
RN73 Series
± 10ppm/°C
100V
2.01mm
1.25mm
-55°C
155°C
-
1140813

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$7.130
50+
HK$4.300
100+
HK$3.990
250+
HK$3.620
500+
HK$3.250
Min: 1 / Mult: 1
1.21kohm
± 0.1%
100mW
0805 [2012 Metric]
Thin Film
Precision
RN73 Series
± 10ppm/°C
100V
2.01mm
1.25mm
-55°C
155°C
-
2838582RL

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Each (Supplied on Cut Tape)
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Packaging Options
100+
HK$1.510
250+
HK$1.360
500+
HK$1.210
1000+
HK$0.938
Min: 100 / Mult: 1
1.21kohm
± 0.1%
100mW
0402 [1005 Metric]
Thin Film
High Power
RP73P Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
-
2838582

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Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
1+
HK$2.960
50+
HK$1.580
100+
HK$1.510
250+
HK$1.360
500+
HK$1.210
More Pricing...
Min: 1 / Mult: 1
1.21kohm
± 0.1%
100mW
0402 [1005 Metric]
Thin Film
High Power
RP73P Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
-
4177818

RoHS

Each (Supplied on Cut Tape)
Cut Tape
Packaging Options
10+
HK$0.411
100+
HK$0.222
500+
HK$0.181
1000+
HK$0.140
2500+
HK$0.138
More Pricing...
Min: 10 / Mult: 10
1.21kohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
4177818RL

RoHS

Each (Supplied on Cut Tape)
Re-Reel
Packaging Options
500+
HK$0.181
1000+
HK$0.140
2500+
HK$0.138
5000+
HK$0.135
Min: 500 / Mult: 10
1.21kohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
CRCW e3 Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
3538705

RoHS

Each (Supplied on Full Reel)
Full Reel
50000+
HK$0.033
250000+
HK$0.032
500000+
HK$0.031
Min: 50000 / Mult: 50000
1.21kohm
± 1%
100mW
0402 [1005 Metric]
Thick Film
Precision
RK73H Series
± 100ppm/K
75V
1.02mm
0.5mm
-55°C
155°C
AEC-Q200
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