WBC series of wire bondable chip resistors feature self-passivating tantalum nitride thin film technology on silicon substrates.
 

 Absolute tolerance ranges are down to ±0.1%, with absolute TCRs to ±25ppm/°C.
 

 
TT electronics IRC Advanced Film Division, irctt.com

Servo-Flo 505 Fixed-Ratio Meter System is for automated, robotic or manual dispensing applications. This single-servomotor dispensing system allows fixed and variable dispense rates while providing on-ratio materials that meet suppliers’ specifications.
 
Three levels of operator interface controls are available; these quickly set output flow rates and adjust material volume settings. The automation or the operator can select different stored flow and volume programs.
 
Has positive rod displacement metering, dispenses precise bead profiles or precision volumetric shots. Flow rates are varied on-ratio during the dispense cycle to provide different shot flows, bead diameters and tip speeds.
 
Accepts low- to high-viscosity materials and is supplied by pumps or pressure tanks. Meter, control panel and supply can be floor-mounted, portable-cart mounted or enclosed in a cabinet.
 

The effectiveness of board level EMI/RFI shielding depends on many factors: the design of the shielding can, material choice, thickness, venting, method of attachment and the ‘maximum linear dimension’ (the longest contiguous hole or slot). This maximum opening size is a function of the frequency spectrum of the device being shielded and of the attenuation you are trying to achieve.
 
Profiled and folded shielding cans offer many benefits, including bespoke design, exceptional co-planarity, low tooling costs etc., but one drawbacks is the corner seam, which can act as an emitter antenna if it is not folded and mounted with care. This corner seam can be soldered for complete integrity in high frequency applications but much of the time, the need is simply to reduce the maximum linear dimension.
 
A new finger joint arrangement on the corner seam allows two adjacent walls to interlock along the corner seam.
 

Ultrasonic Systems will demonstrate the Optima Fluxing System at Productronica next month, in Hall A4 Booth 158.  A new Ultra-Spray head produces a more vertical spray pattern, ensuring through-hole penetration when using water-based VOC-free fluxes.
 
Ultrasonically atomizes VOC-free flux into a fine mist, and then traverses the spray under the circuit at programmable speeds, ensuring flux penetration of the plated-through holes. 
 
Can process circuit boards up to 24” (61 cm) wide and 0.250” (6.35 mm) thick, with plated through holes of 0.015” (0.381 mm) in diameter. 
 
Optima Fluxing System, ultraspray.com.
 

Micro-Line Digital Dispensing Head consists of a high-speed liquid metering valve and a precision nozzle.
 
Applies conformal coatings in precise lines or dots down to 1 mm with the liquid flow rate set electronically with the Prism software.  The coating is applied at a distance from 5 to 15 mm between the nozzle tip and the substrate.  The technology is said to be more effective than conventional needle dispensing.
 
Ultrasonic Systems, ultraspray.com

GETEK HR high speed, low loss laminates and prepregs are CAF resistant, lead-free assembly compatible materials said to deliver enhanced thermal performance and high reliability, while enabling PWB fabricators to experience substantially improved FR-4 processability.
 
Has low dielectric constant, low loss and low z-axis expansion. 
 
“GETEK HR, with its low z-axis expansion and high decomposition temperature, is well suited for thick multilayer PWBs requiring improved electrical performance, as well as high speed and low loss products that will be assembled in a lead-free process compliant with the EU’s RoHS directive.” said Ed Kelley, director of OEM marketing.
 
With manufacturing in both the U.S. and Taiwan, is readily available in prototype to high-volume quantities.  Customers UL approval for manufacturing with GETEK will also be able to use GETEK HR.
 
Used for a broad range of applications that include telecommunications equipment, high speed computing and storage, test and measurement equipment, medical electronics, IC substrates, and RF and wireless electronics. 
 
Polyclad Laminates, polyclad.com
 

Intellect software release 1.2 for DVT vision sensors features improvements to the intuitive user interface, making inspection, precision measurement, counting and object location applications easier.
 
“The new Intellect software has a user-friendly interface that incorporates the familiar Windows look and feel,” said Kris Nelson, senior VP, Vision Sensors. “This simplified user interface will help customers get DVT vision sensors up and running faster and easier.”
 
The release increases object sorting efficiency by allowing a single tool to identify and count multiple shapes or colors; it also includes faster image updates, a new OCV tool, custom drivers for robotic applications and a preconfigured tool for label position and gross defect inspection. Communications enhancements simplify data and image transfer and provide browser accessibility and tight integration with HMI and other industrial software packages.
 
A free download is available: cognex.com/dvt
 

 
BI Technologies, bitechnologies.com/products/single_trim.htm

Low-profile stainless steel AS-Interface Gateways for connection to Profibus DP are available in single or double AS-Interface network versions, suited for networking safety inputs (e-stops, door interlocks and light curtains) using AS-Interface Safety at Work.  The modular Profibus slaves are designed in accordance with AS-Interface specification 2.11 in IP20 and stand 3.25” tall with the connector attached. 
 
Feature a rugged stainless steel housing for long life and reliable operation in harsh environments; duplicate address detection to guard against incorrectly configured nodes; and a four-line graphical display for easy configuration and troubleshooting. RS232 port can be used in parallel with a running Profibus/AS-Interface network to display additional information. Ground fault detection allows the gateway to continuously monitor the integrity of the network and report undesirable ground faults to the PC or PLC. 
 
DeviceNet Gateways are the core of the wiring system, and connect AS-Interface to upper level controllers. They handle the complete data transfer, cyclically polling all participants connected to the wiring system.   The gateway can be placed anywhere in the AS-Interface segment.  The single channel version can handle 248 inputs and 186 outputs over 62 addressable I/O modules. The dual channel gateway offers 496 inputs and 372 outputs.
 
Pepperl+Fuchs, www.am.pepperl-fuchs.com

Shimadzu Scientific Instruments, a developer of analytical instrumentation, announces a complete range of analytical instruments to assist manufacturers in attaining RoHS and WEEE directive regulatory compliance. The company also provides equipment for ongoing compliance with End-of-Life Vehicle (ELV) regulations.    
 
The regulatory measures can have a profound impact on the operations of effected organizations. Within this environment, and responding to feedback from its customer base, Shimadzu collected and centralized details and specifications for instruments manufacturers to ensure compliance.
           
EDX Series systems (Energy Dispersive X-ray Fluorescence Spectrometers) from Kratos Analytical, a subsidiary of Shimadzu Corporation (kratos.com), presents a powerful general analysis instrument range for compliance assessment, enabling simple, rapid screening of various substances regulated under WEEE, RoHS and ELV directives at parts-per-million levels without pretreatment.
 
A selection of instruments tailored to specific substances is available to deliver more precise investigation or to verify results.
 
Organizations seeking high-precision quantitative applications in the analysis of metals can use the Atomic Absorption Spectrophotometer (AA-6300). Simply dissolve the sample to perform high-sensitivity measurements of both ferrous and non-ferrous toxic metals. Measures not only the precise levels of toxic metals added intentionally, but also toxic metals contained within substances as impurities.
 
For the selective analysis of hexavalent chromium (Cr6+), the UVMini-1240 spectrophotometer allows quantitation after extraction from a sample at the pretreatment stage. This method of diphenylcarbazide absorption photometry allows precise amounts of Cr6+ to be identified.
 
IRPrestige-21 Fourier Transform Infrared Spectrophotometer and GCMS-QP2010 are available for companies dealing with brominated flame retardants.  IRPrestige-21, when equipped with a single-reflection type ATR attachment and a brominated flame retardant determination macro program, can determine the presence of these toxic substances within seconds. The Gas Chromatograph / Mass Spectrometer can be used for analysis of raw materials using thermal decomposition analysis to determine amounts of brominated flame retardants in plastics.
 
Shimadzu Scientific Instruments, ssi.shimadzu.com