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Integrated Circuits (ICs)
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RF and Wireless
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Optoelectronics
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Sensors, Transducers
Sensors, Transducers
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Connectors, Interconnects
Connectors, Interconnects
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Resistors
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Capacitors
Capacitors
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Transformers
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Isolators
Isolators
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Crystals, Oscillators, Resonators
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Switches
Switches
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Relays
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See specs for product details.
See specs for product details.
ST UC3843T
| Part Number: | UC3843T |
|---|---|
| Manufacturer/Brand: | STMicroelectronics |
| Part of Description: | UC3843T ST |
| Datasheets: | None |
| RoHs Status: | Lead free / RoHs compliant |
| Payment: | PayPal / Credit Card / T/T |
| Shipment Way: | DHL / Fedex / TNT / UPS / EMS |
| Share: |
Ship From: Hong Kong
Get the lowest prices by enquiry
Online RFQ submissions: Fast responses, Better prices!
- Specifications
- Shopping Manual
- Shipping Information
- QC & Packaging
-
ST UC3843T technical specifications, attributes, parameters and parts with similar specifications to ST UC3843T.Product Attribute Attribute Value Series - RoHs Status Lead free / RoHS Compliant Condtion New Original Stock Warranty 100% Perfect Functions Lead Time 2-3days after payment. Product Attribute Attribute Value Payment PayPal / Credit Card / Telegraphic Transfer Shipping by DHL / Fedex / UPS Port HongKong RFQ Email Info@Y-IC.com -
- Returns Policy
-
Returns must be requested within 60 days of the invoice date and include:
- Original invoice number
- Photo of the parts
- Brief explanation or test report stating the reason for return
Returns will not be accepted after 60 days. Returned items must be in original packaging and resalable condition. Returns due to customer errors at the time of quote or purchase will not be accepted. Contact customer service for return authorization before shipping.
- How to Buy
-
We support both online and offline orders. For detailed guidance on the ordering process, please visit the following link:
https://www.Y-IC.com/RFQ-Quote.htm
If you encounter any issues, feel free to contact our customer service team for assistance.
- Payment
-
We accept the following payment methods:
- T/T in advance (bank transfer)
- Western Union
- Credit Card / Visa / Mastercard / PayPal
Please note that customers are responsible for shipping fees, bank charges, duties, and taxes.
-
- Delivery Period
- Packages will be scheduled for delivery within 1-2 days after all items have arrived at our warehouse. In-stock items will be shipped within 24 hours. The delivery time varies based on the shipping method and the destination.
- Shipping Tracking
- Once the components are delivered, the tracking number will be emailed to you immediately. You can also find the tracking number in your order history.
- Shipping Rate
-
Shipping rates are determined by the size, weight, and destination of the package. YIC provides competitive shipping options through leading carriers such as DHL, FedEx and UPS. Additionally, we offer the option for customers to use their own shipping accounts for direct billing.
-
Quality Control (QC)
Packaging
ESD antistatic protection.
All products are packaged in anti-static bags and shipped with ESD antistatic protection. The label on the external ESD packaging will include our company information: part number, brand, and quantity.
We inspect all goods prior to shipment to ensure they are in excellent condition and verify that the parts are new, original, and match the datasheet specifications. After confirming that everyting is in order,we securely package the items and ship them via global express.
UC3843T Product Details
Mfr. Part
UC3843T
Manufacturer
ST
Y-IC is a quality distributor of ST brand products, providing customers with the best products and services.
Detailed Description
The UC3843T is a current-mode PWM controller designed for use in off-line and DC-DC converter applications. It features excellent line and load regulation, low start-up current, and internal frequency compensation.
Key Features
Current-mode PWM control
Excellent line and load regulation
Low start-up current
Internal frequency compensation
Key Advantages
Reliable and efficient power conversion
Precise control of output voltage
Easy to implement in power supply designs
Reduced component count
Packaging
8-pin DIP (Dual Inline Package) encapsulation
Suitable for through-hole mounting
Operates over a wide temperature range
Lifecycle
The UC3843T is an active product and not nearing discontinuation
There are equivalent and alternative models available, such as UC3842 and UC3844
Key Application Areas
Offline and DC-DC power converters
Switch-mode power supplies
Industrial control systems
Telecommunications equipment
Datasheet
The most authoritative datasheet for the UC3843T is available on the Y-IC website. Customers are recommended to download the datasheet for detailed technical information.
Request for Quotation Now
Customers are recommended to obtain quotes for the UC3843T on the Y-IC website. Get a quote now to take advantage of our competitive pricing and reliable delivery.
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User Review
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Powe***b_Engineer
Excellent power MOSFET for high-voltage switching applications. Switching characteristics are predictable and device temperatures stayed within limits.June 15th, 2026
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This FPGA has been working well in an image processing application. Configuration completed successfully and I have not experienced any reliability issues.June 11th, 2026
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Reliable DSP controller for motor and signal applications. Performance remained stable and integration with existing hardware was straightforward.June 5th, 2026
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Excellent MCU for real-time control and power applications. Stable and fast processing.May 22th, 2026
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good communicationMay 8th, 2026
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It works well in my FPGA signal processing setup. Performance is stable and meets the spec without issues so far.April 20th, 2026
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LM5145RGYR works fine in a DC-DC power design. Efficiency is good, but layout needs to be carefully optimized.April 17th, 2026
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Powe***ive_
Used the FF900R12IP4 in an automotive inverter project. Power handling is solid and thermal performance is stable under load.April 8th, 2026
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Vipe***rcuit
One unit failed during initial power-up, but the rest were fine. Mixed experience overall.March 31th, 2026
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Perfect replacement part. My system worked immediately after installation.March 23th, 2026
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Works very well. I used AD8108ASTZ for video switching project. Stable and no noise problem.March 20th, 2026
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Jaso***.
Used the AD8108ASTZ in a video routing board and it worked perfectly. Clean switching and no noticeable signal degradation.March 9th, 2026
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Devo***.
Exactly as described. Great price for a pack of 10.March 4th, 2026
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Alex***
Moderate quality chip. Works fine at room temperature, but in high temp conditions it seemed to drift. Not terrible, but not premium either.February 28th, 2026
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Core***nalSourcing
Service was efficient and polite. Components were packed well and labels were clear. Appreciated the attention to detail.February 3th, 2026
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Nano***icBuyer
Good.January 28th, 2026
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Quan***Sourcing
Clear communication and quick updates during the whole process. The parts arrived as described. Very satisfied with the service.January 19th, 2026
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Fusi***oreBuyer
Prompt replies. The order process was smooth and the delivery matched the promised timeline. Satisfied with the service.January 16th, 2026
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Opti***pSolutions
GoodJanuary 9th, 2026
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Tech***cuitBuyer
quick answer to our requestDecember 29th, 2025
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Nova***ponentHub
Recommended, trustedDecember 25th, 2025
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Grid***ion
Our procurement team relies on YIC for sourcing discontinued parts. They consistently deliver quality and handle cross-references when needed. Great value and support.December 17th, 2025
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Terr***nse Microtech
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Tita***is Industrial
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Mich***_Embedded
Very professional supplier – confirmed stock quickly and kept me updated until delivery.November 25th, 2025
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ca_c***onents_ashley
The goods work as expected and the quote was clear. Only gripe: website showed ‘thousands in stock’ but true on-hand was zero; they turned it around via factory in 5 days and kept me posted. Fair recovery.November 11th, 2025
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Jaso***ouis
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AmpC***
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Eric***mmons
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Jona***n Brooks
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Antw***Shawn
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Shir***neFrame
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7ama***
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