MIL-STD-1275B Datasheet | Extriq

.. Elmo pliance with MIL-STD-1275B February 2007- Ver. 1.0 .. Elmo pliance with MIL-STD-1275B CHARACTERISTICS OF 28 VOLT DC ELECTRICAL SYSTEMS IN MILITARY VEHICLES Operating in "battery-powered" applications (with or without an alternator or generator) exposes the electrical equipment to severe electrical interferences such as: - surges - spikes - transients - EMI - over voltage - under voltage - voltage ripple - reverse polarity Harsh "battery-powered" environment interferences are unique in nature and have very high energy and long durations. As a result, the "battery-powered" interferences are unable to be managed, resolved or prevented by conventional remedies such as MOVs (metal oxide varistors), tranzorbers, zener and avalanche diodes, passive filters, capacitors, fuses, circuit breakers, etc. which are used to protect electronic equipment. The MIL-STD-1275B sets the requirements that all 24VDC "battery-powered" equipment must be pliant in order to ensure reliable and fault free operation. Although plying with the MIL-STD-1275B is mandatory in military applications, it is highly remended to be adopted in any type of "battery-powered" equipment. The MIL-STD-1275B addresses 3 major interferences: 1. Surge-40V 2. Surge-100V 3. Spike-250V .. Elmo pliance with MIL-STD-1275B Surge-40V Electrical System Requirement Equipment shall continue to operate normally throughout these tests without damage to any ponents Surge 40V LOCI of SURGES in a FAULT-FREE ELECTRICAL SYSTEM MIL-STD-1275B 40 35 Source Impedance approx. 20 milliohms P EA K V OL T A GE 30 25 20 18 15 10 1ms 10ms 50ms 100 ms 500ms 1.0 s .. Elmo pliance with MIL-STD-1275B Surge-100V Electrical System Requirement Equipment shall function as specified Surge 100V LOCI of SURGES in a TYPICAL DC ELECTRICAL SYSTEM 100 90 80...