PFC10-20RF1 vs M32159B03MS3
| Part Number |
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| Category | Chip Resistor - Surface Mount | Chip Resistor - Surface Mount |
| Manufacturer | Riedon | Vishay Dale |
| Description | RES SMD 20 OHM 1% 25W PFC10 | RES SMD 0.0 OHM JUMP 1/5W 1005 |
| Package | -Reel® | 1005 |
| Series | PFC | Military, MIL-PRF-32159, RCZ1005 |
| Features | Current Sense, Pulse Withstanding | Military |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 150°C |
| Package / Case | PFC10 (TO-126 SMT) | Nonstandard |
| Supplier Device Package | PFC10 | 1005 |
| Tolerance | ±1% | Jumper |
| Temperature Coefficient | ±100ppm/°C | - |
| Size / Dimension | 0.472" L x 0.323" W (12.00mm x 8.20mm) | 0.105" L x 0.050" W (2.67mm x 1.27mm) |
| Power (Watts) | 25W | 0.2W, 1/5W |
| Ratings | - | - |
| Height - Seated (Max) | 0.041\" (1.05mm) | 0.033" (0.84mm) |
| Failure Rate | - | M (1%) |
| Resistance | 20 Ohms | 0 Ohms |
| Composition | Thick Film | Thick Film |
| Number of Terminations | 2 | 2 |
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1. What is the number of chip resistors?
Chip resistors are one of the commonly used components in electronic circuits, and their digital identification is an important basis for identifying resistance values and accuracy. The digital identification is usually printed on the surface of the resistor and consists of several digits. These digits not only indicate the specific resistance value of the resistor, but also imply the tolerance accuracy information of the resistor.
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2. Resistance value representation method
In the digital identification of chip resistors, the first three digits are usually used to indicate the resistance value. These digits are interpreted in decimal, such as "100" means the resistance value is 100 ohms. In some cases, if the resistor value is large, "R" may be used to indicate the decimal point position, such as "1R0" for a resistor value of 1.0 ohm.
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3. Resistor tolerance accuracy representation method
The tolerance accuracy of chip resistors refers to the allowable deviation range between the actual value of the resistor and the nominal value. In the digital identification, the tolerance accuracy is usually indicated by the last one or two digits. These numbers correspond to different accuracy levels, for example, 1% accuracy is usually indicated by the number "1", while 0.1% accuracy is indicated by the number "01".
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4. Resistors Guide
When interpreting the digital identification of chip resistors, you need to pay attention to the following points:
1. Make sure to correctly identify each digit in the digital identification to avoid misreading and misjudging the resistance value or accuracy.
2. Be familiar with the digital representation methods corresponding to different accuracy levels so that you can quickly and accurately judge the tolerance accuracy of the resistor.
3. In actual applications, you also need to consider the operating temperature range, power and other parameters of the resistor to ensure its stable and reliable performance.
