549ohm Chip SMD Resistors:

85 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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2562088

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10+
HK$0.600
100+
HK$0.266
1000+
HK$0.193
5000+
HK$0.149
10000+
HK$0.126
More Pricing...
Min: 10 / Mult: 10
549ohm
± 1%
250mW
0603 [1608 Metric]
Thick Film
High Power, Anti-Surge
ERJ-PA3 Series
± 100ppm/°C
150V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
2562088RL

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100+
HK$0.266
1000+
HK$0.193
5000+
HK$0.149
10000+
HK$0.126
25000+
HK$0.096
Min: 500 / Mult: 10
549ohm
± 1%
250mW
0603 [1608 Metric]
Thick Film
High Power, Anti-Surge
ERJ-PA3 Series
± 100ppm/°C
150V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
1501575

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HK$10.290
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HK$9.180
100+
HK$6.620
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HK$5.350
1000+
HK$4.490
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Min: 1 / Mult: 1
549ohm
± 0.1%
250mW
1206 [3216 Metric]
Thin Film
Precision
RP73 Series
± 15ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
-
1501575RL

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100+
HK$6.620
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HK$4.400
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HK$4.310
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Min: 100 / Mult: 1
549ohm
± 0.1%
250mW
1206 [3216 Metric]
Thin Film
Precision
RP73 Series
± 15ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
-
2563623

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HK$0.444
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Min: 10 / Mult: 10
549ohm
± 0.1%
62.5mW
0402 [1005 Metric]
Metal Film (Thin Film)
High Reliability
ERA-2A Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
AEC-Q200
2668238

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HK$0.042
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HK$0.040
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HK$0.018
Min: 10 / Mult: 10
549ohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
WR Series
± 100ppm/°C
50V
1mm
0.5mm
-55°C
155°C
-
2141348

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HK$0.178
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HK$0.167
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2500+
HK$0.088
Min: 10 / Mult: 10
549ohm
± 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
2141348RL

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HK$0.167
1000+
HK$0.090
2500+
HK$0.088
Min: 500 / Mult: 10
549ohm
± 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
2330743RL

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HK$1.770
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HK$1.560
500+
HK$1.340
Min: 100 / Mult: 10
549ohm
± 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
-
2330743

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HK$1.990
100+
HK$1.770
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HK$1.560
500+
HK$1.340
Min: 1 / Mult: 1
549ohm
± 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
-
2122332

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5000+
HK$0.086
25000+
HK$0.075
50000+
HK$0.062
Min: 5000 / Mult: 5000
549ohm
± 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
2326898

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500+
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2500+
HK$0.215
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Min: 10 / Mult: 10
549ohm
± 1%
500mW
0805 [2012 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P06 Series
± 100ppm/°C
400V
2.01mm
1.25mm
-55°C
155°C
AEC-Q200
2307760RL

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HK$0.329
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HK$0.247
2500+
HK$0.243
Min: 500 / Mult: 10
549ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
Precision
ERJ-8EN Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2326898RL

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500+
HK$0.255
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HK$0.231
2500+
HK$0.215
5000+
HK$0.204
Min: 500 / Mult: 10
549ohm
± 1%
500mW
0805 [2012 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P06 Series
± 100ppm/°C
400V
2.01mm
1.25mm
-55°C
155°C
AEC-Q200
2307760

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10+
HK$0.551
100+
HK$0.370
500+
HK$0.329
1000+
HK$0.247
2500+
HK$0.243
Min: 10 / Mult: 10
549ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
Precision
ERJ-8EN Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2563623RL

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500+
HK$0.527
2500+
HK$0.485
5000+
HK$0.444
10000+
HK$0.436
Min: 500 / Mult: 10
549ohm
± 0.1%
62.5mW
0402 [1005 Metric]
Metal Film (Thin Film)
High Reliability
ERA-2A Series
± 25ppm/°C
50V
1.02mm
0.5mm
-55°C
155°C
AEC-Q200
2398934

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5000+
HK$0.163
25000+
HK$0.149
50000+
HK$0.141
Min: 5000 / Mult: 5000
549ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
Precision
ERJ-8EN Series
± 100ppm/°C
200V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
2667719

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Each (Supplied on Full Reel)
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10000+
HK$0.013
50000+
HK$0.010
Min: 10000 / Mult: 10000
549ohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
WR Series
± 100ppm/°C
50V
1mm
0.5mm
-55°C
155°C
-
2694895

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10+
HK$0.046
100+
HK$0.044
500+
HK$0.041
1000+
HK$0.034
2500+
HK$0.028
Min: 10 / Mult: 10
549ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
-
± 100ppm/°C
75V
1.6mm
0.85mm
-55°C
155°C
-
2668238RL

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Each (Supplied on Cut Tape)
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Packaging Options
500+
HK$0.040
2500+
HK$0.027
5000+
HK$0.018
Min: 500 / Mult: 10
549ohm
± 1%
62.5mW
0402 [1005 Metric]
Thick Film
General Purpose
WR Series
± 100ppm/°C
50V
1mm
0.5mm
-55°C
155°C
-
3540034

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HK$0.190
250+
HK$0.091
1000+
HK$0.050
5000+
HK$0.025
12500+
HK$0.021
More Pricing...
Min: 10 / Mult: 10
549ohm
± 1%
125mW
0603 [1608 Metric]
Thick Film
Precision
RK73H Series
± 100ppm/K
75V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
2694895RL

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Each (Supplied on Cut Tape)
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500+
HK$0.041
1000+
HK$0.034
2500+
HK$0.028
Min: 500 / Mult: 10
549ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
General Purpose
-
± 100ppm/°C
75V
1.6mm
0.85mm
-55°C
155°C
-
3578787RL

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100+
HK$2.760
250+
HK$2.680
500+
HK$2.060
1000+
HK$1.990
Min: 100 / Mult: 1
549ohm
± 0.1%
31.25mW
0201 [0603 Metric]
Thin Film
Precision
CPF Series
± 25ppm/°C
15V
0.6mm
0.3mm
-55°C
155°C
-
3540034RL

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Each (Supplied on Cut Tape)
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250+
HK$0.091
1000+
HK$0.050
5000+
HK$0.025
12500+
HK$0.021
25000+
HK$0.017
Min: 500 / Mult: 10
549ohm
± 1%
125mW
0603 [1608 Metric]
Thick Film
Precision
RK73H Series
± 100ppm/K
75V
1.6mm
0.85mm
-55°C
155°C
AEC-Q200
3578787

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Each (Supplied on Cut Tape)
Cut Tape
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1+
HK$5.800
50+
HK$3.120
100+
HK$2.760
250+
HK$2.680
500+
HK$2.060
More Pricing...
Min: 1 / Mult: 1
549ohm
± 0.1%
31.25mW
0201 [0603 Metric]
Thin Film
Precision
CPF Series
± 25ppm/°C
15V
0.6mm
0.3mm
-55°C
155°C
-
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