Gideon Analytical Laboratories received two 153D8496G1 printed circuit boards (PCBs)for failure analysis. A PCB mechanically supports and electrically connects electronic components using conductive tracks, pads, and other features etched from copper sheets laminated onto a non-conductive substrate. Some of the electronic components that might appear on a PCB include semiconductors like diodes or transistors, discharge devices, power sources, resistors, and capacitors. The153D8496G1 circuit card assembly has 6 capacitors, 20 resistors, and 18 semiconductors all mounted to a printed wiring board.
Gideon Analytical Laboratories received one 2N3700 transistor for failure analysis. A new 2N3700 transistor was also received for comparison. A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current through another pair of terminals.
Gideon Analytical Laboratories, Inc. received Atmel AT91SAM9260 based Embedded MPU; it is a 180 MHz ARM926EJ-S ARM Thumb Processor. The SAM9260 is based on the integration of an ARM926EJ-S processor with fast ROM and RAM memories and a wide range of peripherals. It embeds an Ethernet MAC, one USB Device Port, and a USB Host controller. It also integrates several standard peripherals, such as the USART, SPI, TWI, Timer Counters, Synchronous Serial Controller, ADC, and MultiMedia Card Interface.
Gideon Analytical Laboratories received five failed Melexis US2881 in a UA style package for failure analysis. The Melexis US881 is a bipolar Hall-effect switch designed in mixed signal CMOS technology. A Hall-effect sensor is a transducer that varies its output voltage in response to a magnetic field. When a current-carrying conductor is placed into a magnetic field, a voltage will be generated perpendicular to both the current and field. This is the Hall effect.
Gideon Analytical Laboratories received several failed N-channel JFET 2N4856 parts. Several good N-channel JFET 2N4856 parts were also provided for comparison. A junction gate field-effect transistor (JFET) is a simple type of field-effect transistor. JFET source, respectively. The JFET 2N4856 were taken out of the application because of a waveform distortion at elevated temperature. The suggestion was to identify an electrical parameter (one or more) by which these unstable JFETs could be eliminated by a screen.
Gideon Analytical Laboratories received several rectifier assembly rotors for failure analysis. A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The simplest kind of rectifier circuit is the half-wave rectifier. It only allows one half of an AC waveform to pass through to the load. Rectifiers are used as components of power supplies and as detectors of radio signals.
Gideon Analytical Laboratories received a JanTXV1N821 Zener diode for electronic failure analysis. A diode is a two-terminal electronic component with asymmetric conductance; it has low (ideally zero) resistance to current in one direction and high (ideally infinite) resistance in the other. A semiconductor diode is the most common type of diode; it is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A Zener diode is a diode which allows current to flow in the forward direction in the same manner as an ideal diode but also permits it to flow in the reverse direction when the voltage is above a certain value, known as the breakdown voltage.
Gideon Analytical Laboratories received four National LM5111-1m dual 5A compound gate drivers. There were two bad devices and two good ones for comparison. A gate driver is a power amplifier that accepts a low-power input from a controller IC and produces a high current drive input for the gate of a high-power transistor. They consist of a level shifter in combination with an amplifier. They can power IGBTs and MOSFETs. They can help control electronics that need higher power than the PWM signals can generate.
Gideon Analytical Laboratories received two07639SOCN FK230003P1 26522-N45 transformers for electronic failure analysis. Transformers are electrical devices typically used to transfer energy between two or more circuits using electromagnetic induction. Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field. Using Faraday’s Law with high magnetic permeability core properties, transformers can efficiently change AC voltages from one voltage level to another within a given power network.
Gideon Analytical Laboratories received two Microsemi JanTX1N649-1 diodes for electronic failure analysis. A diode is a two-terminal electronic component with asymmetric conductance. It has low resistance to current flow in one direction, and high resistance in the other direction. There are various kinds of diodes, including vacuum tube diodes and solid state diodes. The most used and ubiquitous diode is the semiconductor. The JanTX1N649-1 is a voltage regulator diode is ideal for high-reliability applications where a failure cannot be tolerated.
