3.9ohm SMD Chip SMD Resistors:

180 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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1750886

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HK$0.511
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HK$0.459
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HK$0.348
1000+
HK$0.296
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HK$0.267
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Min: 10 / Mult: 10
3.9ohm
± 5%
500mW
1210 [3225 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P14 Series
-100ppm/°C to +600ppm/°C
200V
3.2mm
2.5mm
-55°C
155°C
AEC-Q200
1750886RL

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HK$0.348
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HK$0.296
2500+
HK$0.267
5000+
HK$0.257
Min: 500 / Mult: 1
3.9ohm
± 5%
500mW
1210 [3225 Metric]
Thick Film
High Power, Anti-Surge
ERJ-P14 Series
-100ppm/°C to +600ppm/°C
200V
3.2mm
2.5mm
-55°C
155°C
AEC-Q200
9236597

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HK$0.193
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HK$0.146
Min: 10 / Mult: 10
3.9ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
RC_L Series
± 200ppm/°C
200V
3.1mm
1.6mm
-55°C
155°C
-
9236597RL

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3.9ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
General Purpose
RC_L Series
± 200ppm/°C
200V
3.1mm
1.6mm
-55°C
155°C
-
2476362

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Min: 10 / Mult: 10
3.9ohm
± 5%
3W
2512 [6432 Metric]
Thick Film
High Power
3522 Series
-
250V
6.35mm
3.2mm
-55°C
155°C
-
2476362RL

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Min: 100 / Mult: 1
3.9ohm
± 5%
3W
2512 [6432 Metric]
Thick Film
High Power
3522 Series
-
250V
6.35mm
3.2mm
-55°C
155°C
-
2919204

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HK$0.645
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HK$0.482
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HK$0.422
8000+
HK$0.408
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Min: 10 / Mult: 10
3.9ohm
± 1%
333.3mW
1210 [3225 Metric]
Thick Film
High Voltage
KTR Series
± 100ppm/°C
600V
3.2mm
2.5mm
-55°C
155°C
AEC-Q200
2324219

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Min: 10 / Mult: 10
3.9ohm
± 5%
1W
2512 [6432 Metric]
Thick Film
Precision
ERJ-1T Series
-100ppm/°C to +600ppm/°C
200V
6.4mm
3.2mm
-55°C
155°C
AEC-Q200
2324219RL

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3.9ohm
± 5%
1W
2512 [6432 Metric]
Thick Film
Precision
ERJ-1T Series
-100ppm/°C to +600ppm/°C
200V
6.4mm
3.2mm
-55°C
155°C
AEC-Q200
3828856RL

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3.9ohm
± 5%
7W
SMD
Wirewound
High Power
SM Series
± 200ppm/°C
750V
-
-
-55°C
200°C
-
3790961

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Min: 10 / Mult: 10
3.9ohm
± 5%
500mW
0805 [2012 Metric]
Thick Film
Anti-Surge
CRGS Series
± 400ppm/°C
150V
2.01mm
1.25mm
-55°C
155°C
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3790961RL

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Min: 500 / Mult: 10
3.9ohm
± 5%
500mW
0805 [2012 Metric]
Thick Film
Anti-Surge
CRGS Series
± 400ppm/°C
150V
2.01mm
1.25mm
-55°C
155°C
-
3828856

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Min: 1 / Mult: 1
3.9ohm
± 5%
7W
SMD
Wirewound
High Power
SM Series
± 200ppm/°C
750V
-
-
-55°C
200°C
-
4009765

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Min: 10 / Mult: 10
3.9ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
High Voltage
KTR Series
± 200ppm/°C
350V
1.6mm
0.8mm
-55°C
155°C
AEC-Q200
4009937RL

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Min: 500 / Mult: 10
3.9ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
High Voltage
KTR Series
± 100ppm/°C
500V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
4009288RL

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Min: 500 / Mult: 10
3.9ohm
± 1%
250mW
0603 [1608 Metric]
Thick Film
Anti-Surge
ESR Series
± 200ppm/°C
150V
1.6mm
0.8mm
-55°C
155°C
AEC-Q200
4009765RL

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Min: 500 / Mult: 10
3.9ohm
± 1%
100mW
0603 [1608 Metric]
Thick Film
High Voltage
KTR Series
± 200ppm/°C
350V
1.6mm
0.8mm
-55°C
155°C
AEC-Q200
4009937

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HK$0.685
500+
HK$0.486
1000+
HK$0.288
2500+
HK$0.260
More Pricing...
Min: 10 / Mult: 10
3.9ohm
± 1%
250mW
1206 [3216 Metric]
Thick Film
High Voltage
KTR Series
± 100ppm/°C
500V
3.2mm
1.6mm
-55°C
155°C
AEC-Q200
4009288

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HK$1.020
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HK$0.395
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2500+
HK$0.149
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Min: 10 / Mult: 10
3.9ohm
± 1%
250mW
0603 [1608 Metric]
Thick Film
Anti-Surge
ESR Series
± 200ppm/°C
150V
1.6mm
0.8mm
-55°C
155°C
AEC-Q200
4146576

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HK$1.440
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Min: 10 / Mult: 10
3.9ohm
± 1%
3W
1225 [3264 Metric]
Thick Film
High Power, Anti-Surge
LTR Series
± 100ppm/°C
200V
3.2mm
6.4mm
-55°C
155°C
AEC-Q200
4206803

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HK$0.393
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HK$0.319
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HK$0.279
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Min: 1 / Mult: 1
3.9ohm
± 1%
1W
0508 Wide [1220 Metric]
Thick Film
High Power
3430 Series
± 150ppm/°C
200V
1.25mm
2mm
-55°C
155°C
AEC-Q200
4207447

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HK$3.360
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HK$1.900
500+
HK$1.670
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Min: 1 / Mult: 1
3.9ohm
± 1%
2W
1020 Wide [2550 Metric]
Thick Film
High Power
3430 Series
± 150ppm/°C
200V
2.45mm
5mm
-55°C
155°C
AEC-Q200
4207769RL

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HK$4.510
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HK$3.810
1000+
HK$3.300
Min: 100 / Mult: 1
3.9ohm
± 1%
3W
1225 Wide [3264 Metric]
Thick Film
High Power
3430 Series
± 200ppm/°C
200V
3.2mm
6.4mm
-55°C
155°C
AEC-Q200
4207447RL

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100+
HK$2.120
250+
HK$1.900
500+
HK$1.670
1000+
HK$1.480
Min: 100 / Mult: 1
3.9ohm
± 1%
2W
1020 Wide [2550 Metric]
Thick Film
High Power
3430 Series
± 150ppm/°C
200V
2.45mm
5mm
-55°C
155°C
AEC-Q200
4146576RL

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100+
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500+
HK$1.690
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HK$1.440
4000+
HK$1.360
More Pricing...
Min: 100 / Mult: 10
3.9ohm
± 1%
3W
1225 [3264 Metric]
Thick Film
High Power, Anti-Surge
LTR Series
± 100ppm/°C
200V
3.2mm
6.4mm
-55°C
155°C
AEC-Q200
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