Technical Library | 2020-11-04 17:57:41.0
Residues present on circuit boards can cause leakage currents if not controlled and monitored. How "Clean is Clean" is neither easy nor cheap to determine. Most OEMs use analytical methods to assess the risk of harmful residues. The levels that can be associated with clean or dirty are typically determined based on the exposed environment where the part will be deployed. What is acceptably clean for one segment of the industry may be unacceptable for more demanding segments. As circuit assemblies increase in density, understanding cleanliness data becomes more challenging. The risk of premature failure or improper function is typically site specific. The problem is that most do not know how to measure or define cleanliness nor can they recognize process problems related to residues. A new site specific method has been designed to run performance qualifications on boards built with specific soldering materials, reflow settings and cleaning methods. High impedance measurements are performed on break off coupons designed with components geometries used to build the assembly. The test method provides a gauge of potential contamination sources coming from the assembly process that can contribute to electrochemical migration.
AVX Tantalum Capacitors agent,AVX Tantalum Capacitors Authorized agent Capacitance 470 uF Voltage Rating 6.3 V Tolerance 20 % ESR 400 mOhms Case Code - in 2917 Case Code - mm 7343 Mfr Case Code D Case Operating Temperature Rang
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Buy AVX Capacitor from http://www.sanmega.net Capacitance 150 uF Voltage Rating 4 V Tolerance 20 % ESR 1.5 Ohms Case Code - in 1210 Case Code - mm 3528 Mfr Case Code B Case Operating Temperature Range - 55℃ to + 125 ℃ Packaging Reel Maximu
Capacitance 2.2 uF Voltage Rating 20 V Tolerance 10 % ESR 3.5 Ohms Case Code - in 1210 Case Code - mm 3528 Mfr Case Code B Case Operating Temperature Range - 55℃ t
Capacitance 1500 uF Voltage Rating 2.5 V Tolerance 20 % ESR 200 mOhms Case Code - in 2917 Case Code - mm 7343 Operating Temperature Range - 55℃ to + 125 ℃ Packaging Reel Maximum Operating Temperature + 125℃ Minimum Operating Temperature -
Industry News | 2017-01-17 17:50:29.0
Kester will be exhibiting (booth #2205) at IPC APEX Expo 2017, which will take place February 14-16 at the San Diego Convention Center. Kester’s booth will offer attendees the opportunity to meet with the R&D and sales teams, and learn more about Kester’s new products.
Industry News | 2010-10-27 18:18:54.0
STI Electronics, Inc., a full service organization providing training, electronic and industrial distribution, consulting, laboratory analysis, prototyping, and small- to medium-volume PCB assembly, announces that it has been awarded a Global Technology Award in the category of Contract Services
Industry News | 2018-11-14 15:48:25.0
Indium Corporation will feature its ultra-reliable Indium8.9HF Solder Paste series at IPC APEX EXPO 2019, Jan. 29-31, in San Diego, California, USA.
New Equipment | Industrial Automation
Bently Nevada 3500/82 Stator Insulation Monitoring System Measure the leakage current of motors sized up to 7.5 kV and 1000 Amps, real time data measurements Features Accepts 3 HSCT, 3 HVS, and 3 4-20mA temp inputs Input frequency range: 40 t
