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High Voltage Chip Resistors

Many component engineers are faced with a circuit requirement calling for resistors having voltage ratings well above that associated with surface mount chip resistors, but below the level of conventional high voltage resistors which are generally available in sizes large enough to handle tens of kilovolts.

The resistors discussed in this paper are particularly attractive as an alternative to carbon composition resistors for higher voltage applications.

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Authors:	F.M. Collins, W.M. Mathias
Organization:	Ohmcraft

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IPC A-610E Acceptability of Electronic Assemblies

A must for all quality assurance and assembly departments, IPC-A-610E illustrates industry-accepted workmanship criteria for electronics assemblies through full-color photographs and illustrations.

The topics include component orientation and soldering criteria for through-hole, SMT and discrete wiring assemblies, mechanical assembly, cleaning, marking, coating, and laminate requirements.

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Forum

Local fiducials | Posted by XPS

Is possible today mount the fine pitch and ultrafine pitch devices (BGA, QFP, CSP), without using the local fiducials, but using the three standard fiducials of row card only?... »»

Selective Soldering - Barrel Fill | Posted by Hegemon

We are having a sudden issue in what has been a stable process for quite some time. It appears to be confined to a particular lot of PCBs. Finish is ENIG. Solder is good old SN63/Pb37, flux is DI water washable... »»

SMT parts loss | Posted by KJS123P

My company is trying to develop a system to take into account the SMT parts scrapped by the machine and also the parts lost during loading and unloading feeders. This is causing part shortages for us... »»

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Industry Associations Events

SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies. Membership Info | SMTA Certification | Bookstore

Next Event: SMTA International Conference and Exhibition - October 24 - 28

IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly. Membership Info | Training & Certification Programs | Standards & Publications - Online Store

Next Event: IPCWorks Asia 2010 - October 26 - 27

SMTnet Express
October 21, 2010

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