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  • r

  • Resistance
    Property of a conductor due to which it opposes the flow of current through it.
  • RLCG
    Resistance, Inductance, Capacitance and Conductance. As described in a RLCG transmission line block diagram.
  • RS-232
    A series of standards for serial binary single-ended data and control signals connecting between DTE (data terminal equipment) andDCE (data circuit-terminating equipment.
  • s

  • SAE AS5625A
    This SAE Aerospace Standard (AS) establishes the minimum performance standards for equipment used as secondary alternating current (AC) electrical power sources in aerospace electric power systems.
  • SAE AS5678A
    This SAE Aerospace Standard (AS) provides a requirements document for RFID Tag Manufacturers to produce passive-only UHF RFID tags for the aerospace industry; identifies the minimum performance requirements specific to the Passive UHF RFID Tag to be used on aircraft parts, to be accessed only(...)
  • SAE AS95234
    AS95234 includes reverse bayonet coupling, high current electrical connectors that are water tight and principally used in shipboard, ground vehicles and ground support equipment applications at serve voltages from 200 to 3000 V-rms and temperatures between -55 °C and +125 °C (-67 °F and +257(...)
  • SAE J1113/1
    Covers the measurement of voltage transient immunity and within the applicable frequency ranges, audio (AF) and radio frequency (RF) immunity, and conducted and radiated emissions.
  • SAE J1113/11
    Defines methods and apparatus to evaluate electronic devices for immunity to potential interference from conducted transients along battery feed or switched ignition inputs. Test apparatus specifications outlined in this procedure were developed for components installed in vehicles with 12-V(...)
  • SAE J1113/12
    Establishes a common basis for the evaluation of devices and equipment in vehicles against transient transmission by coupling via lines other than the power supply lines. The test demonstrates the immunity of the instrument, device, or equipment to coupled fast transient disturbances, such as(...)
  • SAE J1113/13
    Specifies the test methods and procedures necessary to evaluate electrical components intended for automotive use to the threat of Electrostatic Discharges (ESDs). It describes test procedures for evaluating electrical components on the bench in the powered mode and for the packaging and(...)
  • SAE J1113/26
    This SAE Recommended Practice covers the recommended testing techniques for the determination of electric field immunity of an automotive electronic device when the device and its wiring harness is exposed to a power line electric field. This technique uses a parallel plate field generator and(...)
  • SAE J1113/4
    This SAE Recommended Practice defines a method for evaluating the immunity of automotive electrical/electronic devices to radiated electromagnetic fields coupled to the vehicle wiring harness. The method, called Bulk Current Injection (BCI), uses a current probe to inject RF current from 1 to(...)
  • SAE J1455
    The scope of this recommended practice encompasses the range of environments which influence the performance and reliability of the electronic equipment designed for heavy duty on and off road vehicles, as well as any appropriate stationary applications which also use these vehicle derived(...)
  • SAE J1766
    This SAE Recommended Practice is applicable to Electric, Fuel Cell and Hybrid vehicle designs that are comprised of at least one vehicle propulsion voltage bus with a nominal operating voltage greater than 60 and less than 1,500 VDC, or greater than 30 and less than 1,000 VAC.
  • SAE J1773A
    This SAE Recommended Practice establishes the minimum interface compatibility requirements for electric vehicle (EV) inductively coupled charging for North America. This part of the specification is applicable to manually connected inductive charging for Levels 1 and 2 power transfer.
  • SAE J1879
    This document will primarily address intrinsic reliability of electronic components for use in automotive electronics.
  • SAE J2191
    This SAE document defines a recommended practice for implementing circuit identification for electrical power and signal distribution systems of the Class 8 trucks and tractors. 
  • SAE J2293/1
    SAE J2293 establishes requirements for Electric Vehicles (EV) and the off-board Electric Vehicle Supply Equipment (EVSE) used to transfer electrical energy to an EV from an Electric Utility Power System (Utility) in North America.
  • SAE J2293/2
    SAE J2293 establishes requirements for Electric Vehicles (EV) and the off-board Electric Vehicle Supply Equipment (EVSE) used to transfer electrical energy to an EV from an Electric Utility Power System (Utility) in North America.
  • SAE J2953/2
    This SAE Recommended Practice SAE J2953/2 establishes the test procedures to ensure the interoperability of Plug-In Vehicles (PEV) and Electric Vehicle Supply Equipment (EVSE) for multiple suppliers.
  • SAE J551/1
    Covers the measurement of radio frequency radiated emissions and immunity. Each part details the requirements for a specific type of electromagnetic compatibility (EMC) test and the applicable frequency range of the test method. The methods are applicable to a vehicle, boat, machine or device(...)
  • SAE J551/15
    Specifies the ESD test methods and procedures necessary to evaluate electronic modules intended for vehicle use. It describes test procedures for evaluating electronic modules in complete vehicles. A procedure for verifying the simulator that is used to generate the electrostatic discharges is(...)
  • SAE J551/17
    Specifies the test methods and procedures for testing passenger cars and commercial vehicles to magnetic fields generated by power transmission lines and generating stations.
  • SAE J551/5
    Specifies measurement procedures and performance levels for magnetic and electric field emissions and conducted power mains emissions over the frequency range 150 kHz to 30 MHz, for vehicles incorporating electric propulsion systems, e.g., battery, hybrid, or plug-in hybrid electric vehicles.(...)
  • Sampling Rate
    Defines the number of samples per unit of time (usually seconds) taken from a continuous signal to make a discrete signal.
  • Second Harmonic Distortion
    Ratio of second-order harmonic to the input signal (carrier). Often measured as dBc.
  • Seebeck Coefficient
    The voltage built up when a small temperature gradient is applied to a material, and when the material has come to a steady state where the current density is zero everywhere. If the temperature difference ΔT between the two ends of a material is small, then the Seebeck coefficient of a(...)
  • Semiconductor
    A material whose electrical conductivity is poor at low temperatures but is improved by minute additions of certain substances or by the application of heat, light, or voltage. In its pure form it has electrical conductivity that is usually between that of a metal (such as copper) and that of(...)
  • Serial Communication
    The process of sending data one bit at a time, sequentially, over a communication channel or computer bus.
  • Shielded Room
    A room made free from EMI by applying shielding to the floor, walls, and ceiling, and by suppressing interference entering through the power lines. Typical construction shields from 70 dB to 140 dB from 10 kHz to 10 GHz.