Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [pricing]

22 questions
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6 answers

Is it possible to make illegal clones of an Intel Core i7?

The reason I'm asking is that on http://alibaba.com you can find prices for the Core i7 as low as $20, minimum quantity 1. This looks like impossibly low for a genuine Intel, but then I also can't believe you can clone this kind of CPU. What's the…
Federico Russo
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Why do Solid State Relays cost so much?

Solid State Relay (SSR) Crydom CN240A24: Eur 10.72 Same function with basic components Optocoupler MOC3043 (zero-crossing detect, triac out): Eur 0.726 Triac BTA06-600CWRG (snubberless): Eur 1.16 2 resistors: Eur 0.212 Total for…
stevenvh
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What features give reason for such a wide range of prices for digital multi-meters?

Ever since high school, I've been using the same multi-meter. It works well for low voltage purposes, but I'm scared to use it for anything else (high voltage, unless it's a little zap from an electric fence which I think is high voltage) because I…
JustBeingHelpful
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2 answers

Why should one buy through digikey or element14?

I quite often find that digikey or element14 have quite expensive pricing for the parts, right now I'm looking for memory chips and compare it to ebay…
ScienceSamovar
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1 answer

Why Cadence not revealing their prices for their software product?

I contacted the Cadence office as a PhD student and also a faculty member to inquiry their price for an academic license. After 8 emails back and forth I noticed that they are not willing to answer the simple question of how much we have to pay to…
Dr. Ehsan Ali
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How are some modules priced ridiculously low?

I am planning on carrying out a design using the CP2102 Interface IC. The cheapest price I can source (for bulk purchase of 1500 parts) is from Digikey at 2.34$/piece. A price of 2.34$ is approximately 151 Indian rupees. However, CP2102 modules…
Harsha
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IC Price Discrepancies (General Information)

Looking for some insight into what drives IC price discrepancies across suppliers. Espcially comparing places like digikey and mouser to aliexpress For example: I'm looking into buying Maxim Integrated ICs to control LEDs. I've bought some Dot…
Dani
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1 answer

Why are SMT electrolyic capacitors so much more expensive than their through-hole counterparts?

I noticed recently that there's a large discrepancy in price between electrolytic caps that are surface mount and those that are through-hole, particularly at higher working voltages. Here's a good example: two different 220uF 80V caps: Surface…
PKL
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2 answers

Less expensive galvanometers (or alternatives)

I am working on prototyping a product and the ideal solution, from similar designs, seems to be using galvanometers, specifically mirror galvanometers. In doing my research the majority of Galvanometers that I found were extremely expensive. I…
mkrinblk
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How to tell if an electronic component is counterfeit?

I've been looking into sites (like Alibaba, etc...) for components, but they are usually at the price of the rain. How can someone know if a company or factory is not a scam and that those components really belong to said factory?
Rui Lima
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Resistance dependent pricing for resistors

Does anybody know of any reasons that the 560 Ohm resistor is so much cheaper than the other values? It does not appear to be a trend of price increasing or decreasing with resistance since there are resistors both above and below this value that…
DKNguyen
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Price History of FPGA

My goal is to extrapolate (or estimate) the future prices of FPGAs and/or ASICs. Does anyone know of the price history of FPGAs or ASICs? I am looking for a source of information. I know that today FPGA's can be categorized into three basic…
torrho
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What's the difference between 24AA1025, 24FC1025 and 24LC1025

24AA1025: operates from 1.7V - 5.5V, 400kHz, $2.37 24FC1025: operates from 2.5V - 5.5V, 1 MHz, $2.37 24LC1025: operates from 2.5V - 5.5V, 400kHz, $2.37 See here. 24AA1025 is unique, because of the lower operating range. What I don't understand is…
Thomas O
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Why are some mp3 players so expensive?

I have noticed that mp3 players around the 32Gb area seem to be fairly expensive; I haven't seen any for less than £150. Conversely, players with smaller storage can be found at a much lower price, for example 4Gb players are usually about £20. 32Gb…
Bill Cheatham
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Building your own camera module

I would like to know how difficult it is to build your own camera module. For instance, how difficult would it be to assemble the Raspberry Pi camera module from scratch? The reason I'm interested in this, is that camera modules for high quality…
Lodrik
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