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
目前医疗监护中无法动态掌握患者信息，一旦患者病情恶化，无法在第一时间实施抢救，对数据信息维护效率低。 文中首先阐述了蓝牙技术及其在医疗监护中应用的可行性，然后设计了系统框架，给出了具体功能，BlueTooth Wireless Communication Technology Application in Medical Monitoring包括数据采集和语音报警，最后对蓝牙信号在传输...[详细]
在全球半导体产业因景气不佳而纷传并购、整合之际，两大IT巨头三星、IBM日前却双双宣布，将强化半导体产业投资。 三星电子本周一宣布，已向韩国证券交易所提交一份申请文件，打算2008年投下10.5亿美元，用于升级内存芯片生产线、改进技术工艺，从而提高产能并降低成本。无独有偶。本周二IBM公司宣布，未来3年将投资10亿美元，用于扩充位于纽约州 East Fishkill 的半导体工厂，以消...[详细]
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
