circuitspecialists.com Reviews

About this Company

Circuit Specialists, located in Tempe Arizona at 819 W Fairmont Dr Ste 2, started out in Darrel and Leon Thorpe's garage in Scottsdale, Arizona back in 1971. By September of that year Circuit Specialists had moved into a small office and published its first mail order catalog, called "Semiconductor SuperMart," which featured resistors, capacitors, diodes, chokes, coils, and newly invented integrated circuits (ICs) as well as other products for electronics hobbyists and do-it-yourselfers.

Visit us at: https://www.circuitspecialists.com

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50 Volt DC 3 Amp Linear Bench Power Supply - CSI5003XE
50 Volt DC 3 Amp Linear Bench Power Supply - CSI5003XE
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Don G - 4 weeks ago

Excellent for E-Bikes and Lithium Batteries

I have purchase 3 of these for training on E-Bikes and lithium batteries. With training you can safely charge lithium cells from a low voltage to a recommended voltage by the battery manufacture so the BMS will allow charging with the OEM battery charger. I have brought over 200 E-Bike batteries back to life when the owner let the voltage fall below the BMS minimum charging voltage. I have revived batteries where the voltage has fallen to 5 volts or less. I measure the capacity after charging. Some are at 100%.


CSI-PREMIER-PRO Rework & Soldering Station
CSI-PREMIER-PRO Rework & Soldering Station
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Meetro - 03/06/2024

Great purchase

It works great


Small Roll of 0.4mm / 0.0157
Shopper Approved - Verified Customer
Small Roll of 0.4mm / 0.0157" Solder - SOLDER WIRE 1
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Will C - 02/14/2024

Works a intended.

Will C

02/14/2024 - AZ

Time will tell.


Liquid Rosin Flux - 4 oz. - 835-100ML
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Liquid Rosin Flux - 4 oz. - 835-100ML
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Will C - 02/14/2024

Works as intended.

Will C

02/14/2024 - AZ

Time will tell.


Hot Air/Soldering Iron Rework Station with Digital Display - CSI900+
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Hot Air/Soldering Iron Rework Station with Digital Display - CSI900+
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Will C - 02/14/2024

Lots of accessories and repair parts available.

Will C

02/14/2024 - AZ

Time will tell.


Variable AC Transformer with Digital Display & 20 Amp Max Output - TDGC2-2D
Variable AC Transformer with Digital Display & 20 Amp Max Output - TDGC2-2D
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Ray A - 01/30/2024

Flimsy Underrated Outlet

An otherwise great product, but the outlet is poorly constructed and failed after several plug insertions. I had to replace it with a commercial grade 20 Amp outlet, the one it came with was only rated for 15 Amps. Hope there newer units are better constructed.


Toner Transfer Paper - PCB-TTP
Toner Transfer Paper - PCB-TTP
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Steve P - 12/29/2023

Good for small one off boards

I needed to make a one of a kind, small, 2-sided circuit board. Trace width was 0.5 to 1mm and worked good. I also used a thermal laminator.to affix the transfer paper to the copper sheet.


Hantek 200MHz High Isolation Handheld Oscilloscope with Digital Multimeter
Hantek 200MHz High Isolation Handheld Oscilloscope with Digital Multimeter
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Wayne B - 12/20/2023

Single testing tool for portable use

I am amazed at the great utility and quality of this unit. When I travel away from my home workshop to work on anything electronic I grab this and have everything needed for troubleshooting.


EM Series Multi-Box Steel Enclosure - 14.25
EM Series Multi-Box Steel Enclosure - 14.25" x 8.8" x 5.4" - EM-05
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Randy - 12/20/2023

Excellent Value

A great product priced right. Good quality and workmanship and stock delivery! Price is right, too. Beats most of the plastic junk boxes out there these days.


Stainless Steel Anti Static Anti Magnetic Precision Tweezer Set
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Stainless Steel Anti Static Anti Magnetic Precision Tweezer Set
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Paul S - 10/31/2023

Just a nice set of tools for those who are learning or novice.

Paul S

10/31/2023 - Georgia

I found the products I wanted, at fair prices, however was surprised by no free shipping. Not that I care to pay for shipping, but they advertised free shipping on orders over $99, perhaps the site should be updated.


60 Watt Soldering Station - STATION 60
Shopper Approved - Verified Customer
60 Watt Soldering Station - STATION 60
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Bill - 10/24/2023

A workhorse

It just works. Nothing fancy and the price reflects that, but it's a workhorse. This is the third of these that I've owned. They last about 5 years then mysteriously stop working. Buy extra handles, they burn up about once a year.

Bill

10/24/2023 - New York

Easy ordering process, but your shipping seems much higher than other companies charge. For example, a recent Digi-Key order cost me $7.99 to ship UPS Ground. Make that cost *actual* shipping and your business will increase dramatically.


30 Volt DC 5 Amp Linear Bench Power Supply - CSI3005T
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30 Volt DC 5 Amp Linear Bench Power Supply - CSI3005T
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Bob D - 10/02/2023

Great power supply.

Very nice.

Bob D

10/02/2023 - Louisiana

They said free shipping on orders over $99, I got charged $22.65 for shipping. Still ordered, but VERY misleading.


MPS3694 NPN Transistor P1  45V 50mA RF Amp
Shopper Approved - Verified Customer
MPS3694 NPN Transistor P1 45V 50mA RF Amp
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Thomas B - 08/31/2023

Received MPS3394. Is this supposed to be an equivalent? I don't think so. Mistake?

Thomas B

08/31/2023 - Pennsylvania

Went ok. I made orders with CS 50 years ago! 8/30 - Received 2 transistor types, one is wrong type.


8.3
Shopper Approved - Verified Customer
8.3" x 7" x 3.4" Aluminum Instrument Enclosure - LA-6
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JSF - 08/19/2023

Did not receive the LA-6, received a 3rd LA-5 but seller refunded the difference and it's okay, mistakes happen.

JSF

08/19/2023 - North Carolina

Great 1st time experience, will be a return customer :)


2 AA Battery Holder w/ Leads - 12BH324A
2 AA Battery Holder w/ Leads - 12BH324A
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Colby - 08/18/2023

Used for lamp

Once I recieved this item, it was in good condition and it worked perfectly. My lamp works fine with no issues. The batteries were a little hard to get into the holder, but once in they have been snug ever since!


Hantek 2D72 - 70 MHz Handheld Oscilloscope with Digital Multimeter
Shopper Approved - Verified Customer
Hantek 2D72 - 70 MHz Handheld Oscilloscope with Digital Multimeter
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Anthony B - 08/11/2023

Hi, this Oscilloscope is awesome and I didn't expect it to be as nice as it is. This is a great tool to add to my arsent of tools. I'm sure that it will help me in my day to day projects. I highly recommend it! Thanks again Hantek Anthony

Anthony B

08/11/2023 - California

I was looking for a handheld oscilloscope and it came up being the best rated


Powerful 75 Watt Soldering Station - CSI-STATION 75
Shopper Approved - Verified Customer
Powerful 75 Watt Soldering Station - CSI-STATION 75
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Dana R - 08/06/2023

Great value !

Dana R

08/06/2023 - New Mexico

great !


60 Watt Soldering Station - STATION 60
Shopper Approved - Verified Customer
60 Watt Soldering Station - STATION 60
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Dana R - 08/06/2023

Great value !

Dana R

08/06/2023 - New Mexico

great !


Jumbo LCD Panel Meter - 5V Common Ground - PM-1028B
Shopper Approved - Verified Customer
Jumbo LCD Panel Meter - 5V Common Ground - PM-1028B
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FRED P - 07/26/2023

Display works as expected.

FRED P

07/26/2023 - California

Good pricing, good stock


De-soldering pump full sized Powerful ESD design - ZD108K
Shopper Approved - Verified Customer
De-soldering pump full sized Powerful ESD design - ZD108K
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Joe G - 07/22/2023

Works as advertised.

Joe G

07/22/2023 - Tennessee

Bought things over the years with good service.


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