DENSO EMC Engineering Service Corporation

About

DENSO EMC Engineering Service Corporation operates from the DENSO headquarters campus at Showa-cho in Kariya, Aichi Prefecture - the heart of the Toyota-group supplier belt - and the scale of its facility is in a different class from almost anything else in this directory: sixteen anechoic chambers and twelve shielded rooms, running emissions and immunity tests on both devices under test and wire harnesses. That chamber count matters because automotive EMC programmes are schedule-driven and a Tier 1 supplier validating dozens of electronic control units cannot queue them through one or two rooms. The published test parameters are precise rather than promotional. Radiated emissions run from 9 kHz to 6 GHz and conducted emissions from 10 kHz to 200 MHz for voltage and 10 kHz to 1 GHz for current, all to CISPR 25 and vehicle manufacturer specifications. Radiated immunity covers 400 MHz to 4 GHz at 200 V/m, extended down to 200 MHz at the same 200 V/m for vertical polarisation only, to ISO 11452-2. Stripline immunity to ISO 11452-5 runs 10 kHz to 1 GHz at 200 V/m, and portable transmitter immunity to ISO 11452-9 covers 360 MHz to 4 GHz at up to 20 W. The capability that genuinely sets it apart is radar pulse immunity at 1.2 to 1.4 GHz and 2.7 to 3.1 GHz, both at 600 V/m - field strengths three times the usual automotive immunity level, aimed at the L-band and S-band radar environments a vehicle may encounter near airports and coastal installations, and a test very few laboratories anywhere can perform. Testing is carried out to CISPR 25, the ISO 11452 series and carmakers' own specifications. No third-party accreditation is published, so the laboratory is recorded here without an accreditation entry; it should be read as a manufacturer-grade automotive EMC facility offering its capacity as a service. Specialisations are automotive component and harness EMC at high volume, high-field radar pulse immunity, and OEM specification testing for the Japanese vehicle industry.

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