FT821AA

IC PFC CTRLR TRANSITION 8SOP
Mfr. Part Number
FT821AA
Manufacturer
Fremont Micro Devices
Package / Case
8-SOIC (0.154", 3.90mm Width)
Datasheet
Description
IC PFC CTRLR TRANSITION 8SOP
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
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FT821AA
Fremont Micro Devices
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In Stock1,770
Unit
Price
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Reference Price
QuantityPrice
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-09-20 · Valid as reference until 2026-09-27 · Request RFQ for live stock.
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Specification Summary

Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOP
Voltage - Supply
85V ~ 265 VAC
Current - Startup
50 µA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Mode
Discontinuous (Transition)
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-09-20. Confirm live availability and unit price via RFQ before placing a PO.
Specifications
Product Description
Purchase & Inquiry
Mode
Discontinuous (Transition)
Current - Startup
50 µA
Frequency - Switching
-
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C
Voltage - Supply
85V ~ 265 VAC
Package / Case
8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-SOP
IC PFC CTRLR TRANSITION 8SOP
Brand Introduction

Fremont Micro Devices is a semiconductor supplier and integrated circuit design house. It has quickly become a leader in non-volatile memory products and high efficiency power management solutions. FMD was founded in Fremont, California in 2003 and has offices in the United States, Europe and Asia. The key members of the management team have extensive product development, design, finance and sales experience with leading Silicon Valley semiconductor companies.

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Buying FAQ — FT821AA

How do I buy FT821AA from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes FT821AA. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.