LCR
Electronics designs, develops and manufacturers a complete
range of Aerospace / Military
EMI Filters (RFI Filters, EMC Filters) to help
its customers meet MIL-STD-461 (MIL-461), RTCA-DO160 and others
EMC requirements. These include standard off-the-shelf EMI
filters as well as project-specific, specification driven
and build-to-print Military EMI filters and suppression components.
With the purchase of Hopkins Engineering in the early 90’s, LCR has over 50 years of experience in bringing Military/Aerospace/Tempest products into compliance with relevant EMC Standards. For over two decades LCR has been designing and manufacturing Military EMI filters for a number of prime military contractor, tier-2 contractors and other military subcontractors. LCR’s work with these contractors has been on many small, medium and large military programs.
We offer a line of single phaseCOTS EMI filters that operate over an extended temperature range of -40°C to +85°C (-40°F to +185°F). Click here to see the data sheet forsingle stage (F9100) ortwo stage (F9200) filters.
LCR offers both AC and DC EMI filters for all current and voltage ratings and for 50/60Hz as well as 400Hz application. LCR also offers Aerospace / Tempest / Military EMI filters with the options of EMP, surge and spike suppression networks, upon request.
Military EMI Filter Development Process:
Budgetary Estimates: LCR gets involved with Military and aerospace customers from the initial concept / budgeting stage. We gather maximum possible information regarding product design features, major electrical and electronic components and technical requirements from engineers. This information enables us to do the initial EMI filter design and provide an initial budgetary estimate for the EMI filter.
Product Design Stage: In the early stages of product design, we work with our customers to help them with EMI friendly design guidelines. In the final stages of the product design, we reevaluate our EMI filter design against the actual product design and modify the design, if necessary.
EMI Filter Design: Depending on our customer’s request, the prototype filter can either be supplied before the first EMC testing or after the first testing. The prototype filter (per the design accomplished in the product design stage) supplied before EMC testing is based on our customer’s initial design inputs. Once the results of first testing are received the EMI filter design is modified, if necessary, and finalized. On the other hand, if our customer needs the prototype filter after the first EMC testing is done, we look at the initial EMC test data and make modifications to the EMI filter design accomplished in the product design stage and then supply the prototype filter for final testing. LCR has the capability to
Military EMI Filter Specifications: Aerospace / Military EMI filters are generally built in a metal can and fully potted. The interconnection options range from fast-on terminals, solder tabs, threaded studs to hermetically sealed military connectors. Our EMI filters (RFI filters, EMC filters)are designed to meet relevant MIL-STD-810E environmental requirements, all the applicable MIL-F-15733 requirements and other Military standards requested by the customer. We also utilize the applicable clauses of other military specifications such as MIL-STD-220A etc as necessary.
Manufacturing: LCR has a fully vertically integrated manufacturing facility at Norristown, PA where themilitary EMI filters are built starting from metal can fabrication to final testing. With the capability to accomplish most of the critical process in house, LCR can offer filters prototypes much quicker and can offer lower lead times for the final production parts. Our quality standard conforms to MIL-I-45208, are certified to ISO9001-2000 and we utilize 6σ principles.
LCR has full EMC testing, EMC analysis and EMI filter design capabilities. With 2 fully equipped EMC test chambers and experienced EMC testing & EMI filter design engineers, customer products are tested, evaluated and brought into compliance quickly and cost-effectively.
LCR
Electronics designs, develops and manufacturers a complete
range of Aerospace /