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Questions tagged [specifications]

Specifications for an electronic component provide the basis for parametric part selection for operation or optimum performance of a circuit or to prevent damage to integral or connected circuit components.

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I got a really old japanese vhs camera that came with an AC adapter, and I'm trying to figure out if it's safe to plug it into a US outlet. The label says Input AC 100-240V 50/60Hz which I think ...
Schluffter's user avatar
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This site gives us this table: What do 'Significant Figure of Temp Coefficient' and 'Multiplier to significant figure' mean? Like, what do C and 0 as in C0G mean? I guess the third column in the ...
Ice n Fire's user avatar
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I have had this thing since 2013 after going to a garage sale and getting a box full of old mostly linear active componants. The manufacturers' name looks like this IOR with the o hollowed out and the ...
Ted Nystrom's user avatar
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I'm using this STM32F303 MCU and I need to power this Digilent Pmod RS232 (UART to RS232) converter module with schematics given here and apparently uses this ADM3232E IC. For the MCU I use the ...
pnatk's user avatar
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If I'm not wrong, all consumer electrical devices I encountered before they mention the power spec as consumed power meaning active power. But I stumbled upon a device spec showing power as VA not W. ...
user1245's user avatar
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The PCB header MSTBVA 2,5 HC/ 2-G-5,08 (1924305) from Phoenix Contact is listed with a nominal current of 16A. Does this mean that I can load each pin with 16 A simultaneously or only both in total? I ...
Michael's user avatar
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3 answers
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I have a rigid board system that contains a µC and sensor which measures I2C SDA/SCL rise time (400kHz) at 15-17ns between 10%-90% of the signal. When I look at the NXP spec, it states a minimum of ...
tronhawk's user avatar
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I am trying to measure the inductance of a brushed DC motor for which I have a specification sheet from the manufacturer. The spec sheet states an inductance of 1.8 mH (and a resistance of 0.05 Ohms)....
molecularlionel's user avatar
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1 answer
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Please tell me which specifications are allowed to deviate with MOSFET? I need to buy MOSFET, in my case AUIRFS4610. but that one is not available, however there are substitutes. but I am not 100% ...
Bundyboy's user avatar
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3 answers
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I'm looking for a removable SMD power connector with minimum footprint to connect Li-ion batteries, and the best candidate I've found at the moment is Panasonic R35K series, which has tiny 2.24x1.3mm ...
K J's user avatar
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1 answer
108 views

I am looking at the NXP spec for I2C and what I don't understand is the timing constraint for the portion of the transmission where the "clock line held LOW while interrupts are serviced" (...
tronhawk's user avatar
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2 answers
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I am currently designing my 3rd year project in EE. I have an MCU with an ADC that samples at 15 kHz. The signal I want to sample has a 0.5 µs rise time which is equivalent to a bandwidth of 700 kHz, ...
Mandla's user avatar
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I am a hobbyist and not a native so bear with me. I need a MOSFET that can switch at ~ 100 MHz and withstand up to ~ 40 V and 40 A with a variable duty cycle. If my calculation corrects 1/100 MHz ...
Tintin's user avatar
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When PCI Express replaced the operation of reading directly from a PCI peripheral card over a bus, directly addressing its I/O ports, or performing a configuration cycle on it directly, with instead a ...
BobH's user avatar
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4 answers
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I was wondering if it would be a safety hazard to exceed a relay's AC rating of 125VAC with 230VAC? Will it work? Here's the data sheet. I'm using the 5V variant. Image source: Mantech Electronics - ...
Zipho Lunika's user avatar
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I would like to compare the 1/f noise of the voltage references LT1021 and LTC6655. The LTC6655 has a spec of 0.25 ppm (0.1-10Hz) and the LT1021 has 3uV_pp (0.1-10Hz). I assume these datasheet ...
Stefan Wyss's user avatar
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Could you please help me understanding this transformer spec? I am planning to use HCTSM80101AAL transformer and I would like to make sure that I am referencing the proper specification for voltage ...
James's user avatar
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1 answer
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I am going to have a power supply which will always be connected to AC mains and occasionally, a led strip will be connected and disconnected to the supply with a relay. I want an efficient and low &...
CaveScientist's user avatar
3 votes
3 answers
393 views

The spec for the HCPL3700M (AC voltage detection IC) lists an "External Clearance" of ≥7.4mm. Is this saying that no component or exposed trace should be within 7.4mm on any side of the chip?...
user272901's user avatar
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1 answer
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TL;DR: Lunar White is a widely-used standard color in signaling work (like, every pedestrian signal that conforms to ITE specifications uses it, as far as I can tell), so why can't you buy Lunar White ...
ThreePhaseEel's user avatar
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1 answer
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One of the components I am looking at for a new design is a thermal fuse. In the documentation it refers to a "Minimum holding voltage". Source: https://www.bourns.com/docs/Product-...
JohnFahey's user avatar
4 votes
2 answers
389 views

Regarding this driver manual, the analog input has range 0-5 V with 1 MΩ input impedance. But the manual also writes that the analog input is not TTL compatible: I thought the term "TTL ...
GNZ's user avatar
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2 answers
228 views

Please assist in defining the required DC cable diameter for the following requirements: Voltage: 48 volts Watt: 8500 watt Running distance: 50 meters
Ali Safa's user avatar
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142 views

Which cheap, simple transistor can handle a high base current and doesn't need a base resistor to use it as switch?
Nonok cantik's user avatar
3 votes
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I've been doing a lot research on EDID and HDMI and DisplayPort and I have a question about the relative difficulty of always-on EDID Emulation between the two specs. With HDMI, almost every Matrix ...
Evan Carroll's user avatar
6 votes
3 answers
1k views

I'm a software guy trying to do a small electronics prototype project and need help with selecting a transistor. I know this must sound like a very basic question here, but this looks like a great ...
Coconha's user avatar
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2 answers
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I've extracted a relay labeled OEG OL-C-212H12VDC from an early 90s Technics amplifier whose service manual refers to as RSY0009-0. It has an additional line indicating 9142 T. Its coil is busted, ...
Game Instance's user avatar
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May I confirm on this forum if a 6 A, 30 VDC relay can be used as a substitute for a 5 A, 30 VDC relay? They have the same number of pins as well as holding coils orientation. I purchased a relay as a ...
Fed's user avatar
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8 votes
3 answers
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As a development to my previous question I am developing a protocol to drive VGA through lines originally designed for SPI communication. The problem is that I may be able to instruct the receiving ...
Anonymous's user avatar
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31 views

Regarding this spectrometer specs, what is meant by "spectral sampling resolution"`? It is give as 2.55 nm. And how is that different from spectral resolution? The term "spectral ...
floppy380's user avatar
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1 vote
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Are there any published values for GPIO slew rate or rise/fall times on ESP32? I had a look at the datasheets and couldn't find any. I also couldn't find any measurements elsewhere. Have Espressif ...
Polynomial's user avatar
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1 vote
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The ST8034 is a family of interface ICs for contact Smart Card. Here is the Data Sheet. My question is about the ST8034PQR. when the CLK output is active, does fCLK = fCLKIN or fCLK = fCLKIN/2 ? ...
fgrieu's user avatar
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3 votes
2 answers
129 views

https://www.tme.eu/Document/e6d16d51cc343d73832bf32cc9d69d1f/p2500a.pdf How does that "RthA < 4 K/W 1)" work? ...
kellogs's user avatar
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4 votes
3 answers
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Datasheets specify the Rds(on) of a MOSFET at some specific gate-source voltage, e.g. 100mΩ @ Vgs=4V. Up until now, I assumed that the test gate-source voltage was essentially arbitrary and chosen ...
Polynomial's user avatar
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6 votes
4 answers
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Is there a general rule for calculating heat dissipation in electronic equipment if it's not listed in the specs? I have a couple of projects coming I'm working on that require this. For one situation ...
Frank's user avatar
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0 answers
109 views

As long as I have tested, my standard contactors such as Schneider TeSys LC1D32A are equipped with (13-14) NO and (21-22) NC contacts, which never close simultaneously. For this device, the auxiliary ...
Brethlosze's user avatar
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1 vote
2 answers
282 views

I'm thinking of potentially using a linear voice coil actuator to move a 90 g mass between 0 mm and 1 mm and back in the horizontal direction with a frequency of 20 Hz. Assuming triangular ...
asyndeton256's user avatar
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1 answer
1k views

I have scoured the internet for a quite some time now and could not seem to find the answer to this. Is there a formula that approximates, with these specific gains (Kp, Ki, Kd, Kt), the rise time, ...
John.Apple's user avatar
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0 answers
86 views

I'm looking for datasheets with specification for the NEC ASIC/Gate Arrays from around 1990. More preciselly, any information with specifications of their ASIC/Gate Array lines. I would like to known ...
HFK's user avatar
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1 answer
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There has been a lot of questions about how to stablise opamp circuits driving capacitive loads. However, I know there are some op amps that are designed to drive capacitive loads but I am struggling ...
yolt's user avatar
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2 votes
2 answers
2k views

I am thinking about 12 V backup power supply options for my home networking equipment; these run from 12 VDC wall warts supplied with the equipment. The data sheets for such equipment typically say ...
Michael's user avatar
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9 votes
4 answers
1k views

Why are 10 nF capacitors sometimes (usually) specified as 10000 pF? Why are we trying so hard to avoid nF? Seems unnecessary and error prone. Note: Question also relates, of course, to 1 nF vs 1000 ...
Blair Fonville's user avatar
2 votes
2 answers
349 views

I want to use a relay to switch high power LEDs ON and OFF. Nothing out of the ordinary yet. My problem comes from the fact that my control voltage is not stable (it varies from 5V to 12V for example)....
Spyro 999's user avatar
-1 votes
1 answer
116 views

I'm interesting in putting together an inverting op amp to take a signal voltage from 10 V to 0.01 V (Gain = -60 dB). By signal voltage I mean the current input and output will be low (e.g., <1 mA)....
biscuits-and-jamie's user avatar
0 votes
0 answers
111 views

I'm designing a low power (<150mW) sound level meter (SLM) using a 24bit ADC (preliminarily using the LTC2512-24). This is for audible frequency range signals only (20Hz - 20kHz). I'm focused on ...
davegravy's user avatar
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1 vote
2 answers
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In looking for a heatsink I came across a company giving the thermal resistance of extrusions in °C/W/3in. How do I use this? Say I use an extrusion with a specification of 1.5 °C/W/3in and get it ...
martin's's user avatar
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0 votes
1 answer
1k views

I have recently bought a DC socket similar to the one below: https://de.aliexpress.com/item/32681671586.html. It is only used as a plug to connect a small circuit with a heating wire so there are no ...
Sadikov's user avatar
1 vote
10 answers
4k views

This probably has an obvious answer I'm missing, but searching the web only gave me information on how watts are defined, not why we use them. Many electric appliances (from things used to build ...
A. Owl's user avatar
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-1 votes
1 answer
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I am going to use SP-69. https://catalog.triadmagnetics.com/Asset/SP-69.pdf Its power level is 50mW. I am going to use DRV135 to drive audio transformer(SP-69). Output voltage of the DRV135 is 7Vrms(...
Lee Jason's user avatar
0 votes
1 answer
197 views

I'm having trouble reading the following specification sheet: https://www.molex.com/pdm_docs/ps/PS-15166-001-001.pdf if it doesn't work, I just pressed the datasheet button in this product: https://...
E. Ginzburg's user avatar

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