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Operating parameters of automobile fuse holder

Many users have told me about buying printers, but when asked which one they want to buy, they can't tell. Before purchasing a printer

automotive blade fuse colours.fuse PPTC for overcurrent protection in photovoltaic street light controllers)

　　　　Due to the fact that the intelligent control part of this new type of LED explosion-proof light is completed through RS485 serial communication, it was found in practical applications that the 485 interface chip is easily burned out. After analysis, overvoltage protection was not done properly, so TVS tube was selected as the overvoltage protection circuit, and it was found that it is still easy to be burned out by lightning.　　When I was in a state of exhaustion, I saw an overcurrent protection scheme using a self recovery fuse TVS tube. The experiment was successful, greatly improving the reliability of the explosion-proof lamp. I didn't expect to use a self recovery fuse PPTC in series at port 485, and then connect TVS in parallel to complete the task. There is no simpler solution than this method.　　The self restoring fuse PPTC is an overcurrent protector, also known as a ten thousand fuse, also known as a self resetting overcurrent protector or a polymer self restoring fuse. Whe

August 08,2023

Fuse selection.mini fuse voltage drop chart

　　　　Choose Fuse Type　　Choose Standard [UL, IEC...]　　Choose Voltage Rating [AC or DC]　　Calculate Rated Current　　Choose Interrupting Rating [Breaking Capacity]　　Current Derating　　Advisor In rush Characteristic ² T]　　Consultant Pulse Factor [Fp]　　1、 Choose Fuse Type　　The first step in selecting a fuse is to determine the type and size required. Common structures and sizes include the following:　　1. Tubular type: glass or ceramic tube body, with a general size of 3.6x10mm 5x15mm 5x20 6.3x32mm;　　2. Plastic shell type: PA66 shell, small in size, woven with machine insertion, generally 8.5x8mm 8.5x7.6mm in size;　　3. Epoxy resin type: ceramic tube body, surface sealing resin, micro type, woven machine insert, size: 3x7mm;　　4. Surface mount: suitable for high-density circuit boards, with dimensions of 0402 0603 1206 6125 1032;　　5. Automotive fuses: generally used in conjunction with terminals or boxes, specifically for use in automotive or low-voltage, high current systems;　　2、 Choose Standard　

August 24,2023

Detailed explanation of JDT/JFP-F series quick break resistor type fuses.fast blow fuse vs circuit breaker

　　　　The characteristics of the JFP-F series quick break resistor type fuse include:　　1. Pin tensile strength: 5N for 10 ± 1 S;　　2. Pin thrust strength: 2N for 10 ± 1 S;　　3. Solderability:　　Wave soldering: 260 ℃, ≤ 3s;　　Soldering iron: 350 ± 10 ℃, ≤ 3s;　　4. Welding heat resistance:　　Wave soldering: 260 ℃, 10s;　　Soldering iron: 350 ℃, 5s　　The electrical characteristics of the JFP-F series quick break resistor type fuse are: all testing environments have a temperature of 25 ± 5 ℃,　　Load capacity: When the fuse passes through 100% of the rated current, it should not blow within 4 hours.　　Breaking capacity: The fuse can withstand breaking capacity: up to 50 A under 125/250 V AC power supply.　　Apply 1.0 times the rated current when the temperature stabilizes (measure 4 times within 5 minutes, and the difference between each measurement and the average value should not exceed 2 ℃). The temperature rise of any part of the fuse shall not exceed 75 ℃, and the ambient temperature shall be 25 ± 5

October 19,2023

normally open vs normally closed.What is a self recovery fuse

　　　　1、 What is a self recovery fuse　　Self recovery fuse is an overcurrent electronic protection component that uses a polymer organic polymer under high pressure, high temperature, and sulfurization reaction conditions　　After mixing with conductive particle materials, it is processed through a special process. Habitually applying PPTC (Polymer Positive Temperature)　　Coefficent, also known as a self restoring fuse. Strictly speaking, PPTC is not a self restoring fuse, and Resettable Fuse is a self restoring fuse.　　2、 Principle of self recovery fuse　　The self recovery fuse is made of high-tech polymer resin and nano conductive grains through special processing. Under normal circumstances, nano conductive grains　　The body forms a chain like conductive path along with the resin based link, and the fuse operates normally; When a circuit experiences a short circuit or overload, the large current flowing through the fuse causes its temperature to increase. When the Curie temperature is reache

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Fuseless car charger, carefully burn your phone

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2023-04