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computemp 255 binary thermometer kit
computemp 255 binary thermometer kit

... the voltage “ramp” up with the count. On an oscilloscope, you can not only see the voltage ramp up, but also take 255 steps on the way up to 3.10V, each step being 12.16mV! It’s worth it just to check this. The ADC (Analog to Digital Converter? In a sense…) Well, you may wonder how this ramp from ou ...
Upgrading from the MB150X to the National LMX1501A
Upgrading from the MB150X to the National LMX1501A

... The LMX1501A and MB1501(H/L)Ð2 have a great deal in common. Both devices consist of 1.1 GHz programmable prescalers with an option of 64/65 or 128/129 dual modulus division. Both have a reference divider channel. Both have an internal phase detector and charge pump circuit, and outputs which allow u ...
Counterfeit Detection Strategies: When to Do It / How to Do It
Counterfeit Detection Strategies: When to Do It / How to Do It

... Ball Grid Array reballing is a routine operation to salvage BGAs after once being soldered to a circuit board. If done well it is extremely difficult to determine if a device has been reballed. However, using visual inspection one can look at features such as excess solder around the ball attachment ...
430 eval board data sheet jan 9th - IXYS Power
430 eval board data sheet jan 9th - IXYS Power

... The schematic diagrams for the evaluation boards are shown in Figures 8 and 9. The external drive signal is applied to 'Signal In' test point. The PCBs also provide solder pads across the 50 Ohm input resistor R4 so that a coax can be soldered directly to the board.The PCBs have been designed in an ...
Evaluates:  MAX3802 MAX3802 Evaluation Kit General Description Features
Evaluates: MAX3802 MAX3802 Evaluation Kit General Description Features

... 50Ω to ground. To avoid interfering with the commonmode voltage, all MAX3802 CML outputs are ACcoupled on board with 0.1µF capacitors. The CML outputs should not be connected directly through 50Ω to ground. Exposed-Pad Package The EP of the 68-pin QFN package provides a very low thermal resistance p ...
ESD0P4RFL - Infineon
ESD0P4RFL - Infineon

... For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expect ...
Mojotone Tweed Princeton Style Amp Kit Instruction
Mojotone Tweed Princeton Style Amp Kit Instruction

... Always use a clean tip on your soldering iron to make positive, clean solder joints, (“cold” solder joints can be a major problem in hand-wired amps). ...
SoundTraxx Sierra Install
SoundTraxx Sierra Install

... Diodes as shown in the photo above. 6 amp or greater components should be used for this. A rectifier has 4 pins. Two are labeled ~, the third is labeled + and the forth is labeled -. Install the two diodes between the + and – leads with the diode band facing the – lead. Install the rectifier in one ...
doc - Cornerstone Robotics
doc - Cornerstone Robotics

...  Also note that the value of the component is given where applicable.  In a schematic drawing, the distance between components does not represent the actual distance when wiring the components.  Show polarity (+ and -) for components that have polarity. This will be covered more in later lessons. ...
1 Schematics Tutorial Cornerstone Electronics Technology and
1 Schematics Tutorial Cornerstone Electronics Technology and

...  Also note that the value of the component is given where applicable.  In a schematic drawing, the distance between components does not represent the actual distance when wiring the components.  Show polarity (+ and -) for components that have polarity. This will be covered more in later lessons. ...
Evaluates:  MAX1700/MAX1701 MAX1701 Evaluation Kit ________________General Description ____________________________Features
Evaluates: MAX1700/MAX1701 MAX1701 Evaluation Kit ________________General Description ____________________________Features

... 3) Connect a voltmeter to the VOUT pad. 4) Turn on the power and verify that the output voltage is 3.3V. 5) Connect a load (if any). ...
Series and Parallel Circuits
Series and Parallel Circuits

... • Series Circuits are the simplest to work with. • Here we have three resistors of different resistances. They share a single connection point. When added together the total resistance is 90-Ohms. ...
JonDeTech Customer Presentation (power point)
JonDeTech Customer Presentation (power point)

Circuit calculations
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... 2. The mesh-current method Analyze the following two circuits using the mesh-current method. In lab, build each circuit and apply the described DC voltages. Identify each of the mesh currents in the circuit. For the individual meshes, insert the ammeter to measure the mesh currents. Be sure to inser ...
Presentation Slides - UTK-EECS - The University of Tennessee
Presentation Slides - UTK-EECS - The University of Tennessee

2038-15-SM-RPLF
2038-15-SM-RPLF

... • The rated discharge current for Mini-TRIGARD™ GDTs is the total current equally divided between each line to ground. • Surface Mount (SM) parts may show a temporary increase in DCBD after the solder reflow process. Most devices will recover within 24 hours time. It should be noted that there is no ...
ALFR-2 SERIES
ALFR-2 SERIES

... 1% ∆R maximum 1% ∆R maximum 1% ∆R maximum 1% ∆R maximum 1 to 1600 ohms 2% ∆R maximum ...
Physics I Honors Name
Physics I Honors Name

... 16. Which of the five combinations shown produces the least total resistance? a) I b) II c) III d) IV e) V 17. Which of the five combinations shown produces the greatest total resistance? a) I b) II c) III d) IV e) V 18. Which of the following capacitors, each of which has plates of area A, would st ...
Bourns® Fixed Resistors
Bourns® Fixed Resistors

... wirewound resistors. This axial leaded series is an integrated solution as it provides both inrush current protection and fusible overcurrent protection. The FW Series ranges from 1 to 7 watts and has a resistance range of 4.7 ohms to 100 ohms. Models with resistances between 4.7 ohms and 47 ohms ar ...
IPC T-50 Terms and Definitions
IPC T-50 Terms and Definitions

... A measure of the ability of two adjacent conductors separated by an insulator to hold a charge when a voltage is impressed between them. The electrical interaction between two conductors that is caused by the capacitance between them. The amount of capacitance available per unit area. The resistance ...
Electrical Circuits
Electrical Circuits

... side of the power source to the other ...
DMS-EB2 - Murata Power Solutions
DMS-EB2 - Murata Power Solutions

... (TEST/HOLD IN) to J1, pin 6 (GND). This allows for external control, via a switch, of the backlight feature. The switch should be rated for low voltage operation at 35mA. 2. 9V LCD Meters: DMS-20LCD-X-9 meters cannot be used in a singleended configuration, i.e., with (–) IN LO tied to GND. On these ...
A state-of-the-art 2.3GHz Pre-amplifier
A state-of-the-art 2.3GHz Pre-amplifier

... techniques are very different to those required for more conventional, larger components. The inductor chosen for the input match in this design is a Coilcraft 0603CS-030 which has an inductance of 3.9nH +/-5%. The actual inductance varies with frequency, but the graph of L vs f is very flat and the ...
Physics 2102 Spring 2002 Lecture 8
Physics 2102 Spring 2002 Lecture 8

... difference E, and settles for a lower value. One can represent a “real EMF device” as an ideal one attached to a resistor, called “internal resistance” of the EMF device: ...
Series and Parallel Circuits
Series and Parallel Circuits

... Law equation with a figure for individual resistance, the result would not relate accurately to any quantity in the real circuit. This brings us to the second principle of series circuits: the total resistance of any series circuit is equal to the sum of the individual resistances. This should make ...
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Surface-mount technology



Surface-mount technology (SMT) is a method for producing electronic circuits in which the components are mounted or placed directly onto the surface of printed circuit boards (PCBs). An electronic device so made is called a surface-mount device (SMD). In the industry it has largely replaced the through-hole technology construction method of fitting components with wire leads into holes in the circuit board. Both technologies can be used on the same board for components not suited to surface mounting such as large transformers and heat-sinked power semiconductors.An SMT component is usually smaller than its through-hole counterpart because it has either smaller leads or no leads at all. It may have short pins or leads of various styles, flat contacts, a matrix of solder balls (BGAs), or terminations on the body of the component.
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