85°C ± 2°C, 85%±5%RH, 1000 hours; 1.5 hr ON, 0.5 hr OFF cycle
85°C ± 2°C, 3000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+155°C, 1000 hours
* Depends on resistance value, please contact KOA Speer for details.
Precautions for Use
• The properly and electrostatically measured taping materials are used for the components, but attention should be paid to the fact that there is some danger the parts
absorb on the top tapes to cause a failure in the mounting and the parts are destructed by static electricity (1J, 2A, 2B, 2E: 1kV and more, 1E: 0.5kV and more at Human
Body Model 100pF, 1.5kΩ) to change the resistance in the conditions of an excessive dryness or after the parts are given vibration for a long time as they are packaged
on the tapes. Similarly, care should be given not to apply the excessive static electricity when mounting on the boards.
• Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion resistance, etc.
The flux may contain ionic substances like chlorine, acid, etc. while perspiration and saliva include ionic impurities like sodium (Na? ), chlorine (Cl−) etc. Therefore these
kinds of ionic substances may induce electrical corrosion when they invade into the products. Either thorough washing or using RMA solder and flux are necessary since
lead free solder contains ionic substances. Washing process is needed, before putting on moisture proof material in order to prevent electrical corrosion.
●
The upper electrodes could be peeled off when a heat-resistant masking tape is attached to the mounted chip resistors and then detached from them. It is confirmed that
the adhesiveness gets stronger due to the exposure to heat under mounting. Accordingly, we recommend the use of masking tape be refrained. If the use of heat-resistant
masking tape is unavoidable, please make sure that the adhesives on the tape do not directly come in contact with the product.
●
When high-pressure shower cleaning is implemented, there is a possibility of exfoliation of the top electrodes caused by the water pressure stress so please avoid
the implementation.
●
If the implementation is unavoidable, then please evaluate the products beforehand.
For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
9/30/19
28
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
I am making an MP3 player and want to use a 3.7V lithium battery to power it. Do I need a power chip to get 2.5V, 2.8V, or 3.3V output? Can I use a series resistor or diode to reduce the voltage?...
I recently made an nRF24Le1 programmer and encountered some problems. I used stm32 to simulate spi to operate nrf24le1. When I sent a read status register command, the read output was all 0, and somet...
According to the report "Ultra-Wideband Market Analysis 2021" by market analysis agency Techno Systems Research, the UWB market we often discuss today consists of four main application categories: rea...
[i=s]This post was last edited by jinglixixi on 2021-1-22 18:08[/i]2. Basic usage of Windows-IDE
1) Open Perf-V IDE, that is, double-click the iconon the desktop to enter the working interface.
2) To ...
[align=left][color=#000000][font=宋体] Year-end summary: [/font] 2016[font=宋体] is about to pass. Looking back on this year, I was busy with my life every day, and my life seemed very dull. There was a l...
The problem of dynamic sealing of equipment always exists with the operation of the equipment. Today, we have specially sorted out the various commonly used sealing forms, usage scope and character...[Details]
Reflow soldering, a common soldering method in modern electronics manufacturing, primarily melts solder paste and pads to form solder joints. With technological advancements, soldering equipment ha...[Details]
Overview
As handheld voice communication devices become more and more popular, they are increasingly used in noisy environments, such as airports, busy roads, crowded bars, etc. In such noisy ...[Details]
Intel®
Xeon®
6
-
core processors now support the new Amazon EC2 R8i and R8i-flex instances on Amazon Web Services (AWS).
These new instances offer superior performance and fast...[Details]
As the power density of modern electronic systems continues to increase, effective thermal management has become critical to ensuring system performance, reliability, and longevity—especially in hi...[Details]
introduction
Commercial air conditioner PCBs involve both high-voltage and low-voltage power. The power supply for commercial air conditioners often passes through the controller. This forces ...[Details]
Yongxin Technology's BCL603S2H chipset integrates the nRF54L15 system-on-chip for monitoring various sensors and achieving seamless wireless connectivity.
Oslo, Norway – August 19, 2...[Details]
On August 18, Indian officials announced on August 12 local time that they had approved four more semiconductor projects under the framework of the Indian Semiconductor Mission (ISM), bringing the ...[Details]
With the global penetration rate of new energy vehicles projected to exceed 45% by 2025, and the industry's transformation entering its second half, the era of intelligentization, LiDAR has rapidly...[Details]
Lithium-ion batteries used in electric vehicles are known to slow down the chemical reaction of the electrolyte in low temperatures. Winter driving for pure electric vehicles has become a source of...[Details]
As urbanization accelerates and public safety demands continue to rise, traditional surveillance systems are gradually exposing their limitations due to their reliance on manual oversight, delayed ...[Details]
The device is space-saving, with a footprint of only 4 mm x 4 mm, is sealed to IP67 and operates at temperatures up to +140°C.
MALVERN, Pennsylvania, USA and SHANGHAI, China – August...[Details]
Radio frequency (RF) testing is a critical step in embedded system development and verification, particularly in industries such as telecommunications, aerospace, automotive, and the Internet...[Details]
1. Mainstream Technologies in Fiber Optic Networks
1.1. New Fiber Optic Technologies
Fiber manufacturing technology is now largely mature and is now in mass production. Currently, singl...[Details]
Multi-touch sensing is an extension of capacitive sensing. Capacitive sensing makes touch technology more intuitive, enabling simultaneous detection of multiple fingers and gesture recognition. Thi...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
