(5 ±1 seconds and charge/discharge not exceeding 50 mA)
2.5%
1,000 megohm microfarads or 100 GΩ
(Rated voltage applied for 120 ±5 seconds @ 25°C)
Parameters/Characteristics
To obtain IR limit, divide MΩ-µF value by the capacitance and compare to GΩ limit. Select the lower of the two limits.
Capacitance and dissipation factor (DF) measured under the following conditions:
1 MHz ±100 kHz and 1.0 ±0.2 Vrms if capacitance ≤ 1,000 pF.
1 kHz ±50 Hz and 1.0 ±0.2 Vrms if capacitance > 1,000 pF
Note: When measuring capacitance it is important to ensure the set voltage level is held constant. The HP4284 and Agilent E4980 have a feature known as
Automatic Level Control (ALC). The ALC feature should be switched to "ON."
Post Environmental Limits
High Temperature Life, Biased Humidity, Moisture Resistance
I am learning codezero, but there is too little information to search. I saw a video on the Internet about using codezero to simulate Android, and now I want to make that thing. If anyone knows codeze...
DM9000AEP upgrade to DM9000CEP:Recently, many friends have asked whether the upgrade from DM9000AEP to DM9000CEP is fully compatible. Or what parts need to be modified, you can answer like this:1.DM90...
When sending serial port, timer 1 is usually reloaded with eight bits. Has anyone used working mode 1? I think it is correct to use eight bits reload now, but it is wrong to use working mode 1. I hope...
[align=left][size=5][b][i]Dot Matrix Birthday Song[size=4]——Made By JQH [/size][/i][/b][/size] Let's talk about the functions that this thing can accomplish first. The finished product is mainly compo...
[i=s]This post was last edited by jennyzhaojie on 2021-3-12 22:21[/i]Last time, I gave some introduction to the reading and writing functions of USB flash drives, but it was not comprehensive enough, ...
[table=98%,rgb(238, 238, 238)] [tr][td]I am currently using max1480 for 485 communication, but the cost of this chip is too high. Are there any other substitutes that are similar to the 1480 applicati...
International Solar Photovoltaic Network News: Chinese inverter company Sungrow announced that it will build a 3GW photovoltaic inverter manufacturing plant in Bangalore, the capital of Karnataka, ...[Details]
In our common sense, the word technology often has two definitions. The first is the technology sealed in the laboratory. They are like flowers on the mountain top. Only a few people on the mountai...[Details]
On April 20, the Photovoltaic Summit, guided by Jiangsu Renewable Energy Industry Association, hosted by Growatt, and supported by LONGi Solar Technology Co., Ltd. and Jiangsu Bigo New Energy Group...[Details]
China Energy Storage Network News:
According to reports, in order to reduce carbon emissions, a group of Japanese technology and energy companies are launching a pilot project that aims to al...[Details]
1. Function prototype In the function library officially provided by STM32, you can find functions like HAL_Delay(). This function uses a timer to achieve a more accurate time delay and provides it...[Details]
After searching a lot of information, I finally understood the time base timer. I did not use any library functions but operated the registers directly. The following introduces the systick in STM32...[Details]
1. Usage scenarios In the first case, when using a common STM32 delay function, similar to HAL_Delay(time), since this function uses a loop to judge and delay, when executing this function, the ent...[Details]
1. Photovoltaic inverter installation process
1. Preparation before installation
Are the product accessories, installation tools and parts complete? Is the installation environmen...[Details]
After we understand the use of libopencm3, we find that libopencm3 is only suitable for small projects. Its biggest feature is the convenience of USB. So when we configure large projects, is there a ...[Details]
Development Background: 1. Main chip - STM32F207VCT6; 2. TCP/IP protocol stack - LWIP, transplanted based on ST routines; 3. Operating system - none (bare metal); Anomalies: 1. Power on the device wi...[Details]
Artificial intelligence
There is no inherent bias in AI. It does not "think" something is true or false for reasons that cannot be explained by logic. Unfortunately, human bias exists in mach...[Details]
In the Chinese automobile market, the trend of new energy vehicles and driverless cars is leading the transformation of China's automobile industry. As the world's largest automobile market, "Chinese...[Details]
With the implementation of the first version of the NR sub-6GHz draft of 3GPP in December 2017, and the subsequent Phase 2 drafts, semiconductor manufacturers and terminal manufacturers began to ...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
From small households to large enterprises, energy consumption has always been a concern for everyone. The energy consumption of Chinese enterprises has always been high, and the country has also wor...[Details]