Last year, Old Li was worried about the 65W fast charging - the prototype was sent for EMC testing three times but failed each time. His mouth was sore from the stress. After replacing it with the thumb-sized inductor from Ninelei, the test data suddenly met the standards, and even the noise from the oscilloscope in the neighboring laboratory was reduced. The maintenance worker at the factory, Old Zhang, joked: "This thing is more effective than the talisman hired from the temple!"
These three powerful tricks of this inductor:
Winding is like knitting a sweater: The copper wire is wound back and forth three times on the magnetic core, cleaning up all electromagnetic interference completely.
Smart temperature control without overheating: The operating temperature under full load is 5 degrees lower than that of a mobile phone charger.
It can handle any frequency: From radio noise to mobile phone signals, it doesn't miss a single one.
Secrets of the master installer:
When installing, keep two finger widths away from the High-frequency Transformer (just like being careful not to stick the pan when cooking)
Remember to put on a waterproof cover in the seaside factory (the supplied silicone cover can prevent salt fog)
Connect the Switching Power Supply Transformer to the ground wire (don't try to save the hassle by using a flying wire)
Take an electric hair dryer out to clean the dust every quarter (just as important as cleaning the computer)
Testimonials from real customers:
Actual test results from a charging head factory in Dongguan: 2000 units of products were sent to Europe. All were green lights after customs inspection. Mr. Wang said: "Previously, three out of every ten batches of products had to be returned. Now, the production line's failure rate has dropped by 80%, and the money saved is enough to give the technical department a half-year bonus."
The most frequently asked questions by procurement
Question: Can the old equipment be upgraded?
Answer: The plug-in type can be completed in five minutes. The surface-mount type requires reflow soldering.
Question: Will the equipment break down in hot weather?
Answer: The actual measurement in the workshop shows that it could operate continuously for 72 hours, and the temperature never exceeded 68℃.
Question: Can the broken magnetic core be repaired?
Answer: It can still be used if it is broken into three pieces, but be careful not to get hurt.
Q: Does it affect the charging speed?
A: After installing the 120W fast charging module of a certain brand, the temperature drop was 15%!
Question: How long is the warranty period?
Answer: It's free replacement within three years if it breaks down. After five years, we still offer maintenance services.
Unexpected gains in the factory
The maintenance workshop discovered a new application: By installing this inductor on cracked mobile phones, the problem of erratic screen movement was immediately resolved. Now, second-hand phones are selling for 200 yuan higher than new ones, and have become a sought-after component in Huaqiangbei.
Internal competition in the workshop
Production line worker Old Zhao challenged the quality inspection team: If we use the 9000 coil to make the charging head, the electromagnetic interference should not be detectable from ten meters away. The loser would have to treat the entire team to a hot pot - but the detector was so quiet that it was as if it wasn't turned on at all. Old Zhao ended up getting a free meal of Shantou beef soup.
New Challenges in the Industry
Liu, an EMC inspector, has been feeling quite idle recently. After all the manufacturers started using this inductor, the workload has been slashed by half. Last month, his performance evaluation was almost failing. He begged the production line to provide a few non-conforming products to meet the task requirements.
Engineer Jokes
Old Wang, the engineer, told a story about Versailles: "The scariest thing is when a client calls in the middle of the night - last time, at 2 o'clock, he said the inductors were very durable and the production line hadn't changed its parts for five years. The maintenance workers were almost forced to change jobs."
