NCP1117ST33T3G is an onsemi NCP1117 fixed 3.3 V low-dropout linear regulator — 1.0 A, 1.07 V typical dropout (1.2 V maximum at 800 mA), in SOT-223, tape-and-reel packing of 4000, 4.75 to 20 V input, 0 to +125 °C. The ±1.0% trimmed output with no minimum load requirement on the fixed version is the selection point: a dependable 3.3 V point-of-load rail that stays in regulation with no load attached, unlike adjustable regulators that need a minimum current. Selection advice: this is the commercial-temperature, 1 A workhorse — for -40 °C operation or 1.5 A, step up to the LD1086 family; for adjustable output, the LM317 costs less but needs about 2 V of dropout and two resistors. The 10 mA quiescent current rules out micropower sleep designs — for always-on battery rails choose a 1.6 µA-class part like the MCP1700 instead. Current limit, safe-area compensation and thermal shutdown are built in. Distributor listings show this code Active. Evidence: onsemi NCP1117 datasheet and DigiKey/Newark listings confirm 3.3 V, 1 A, 1.07 V dropout, SOT-223 and reel packing. Match the full NCP1117ST33T3G code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
NCP1117ST33T3G is a 1 A low-dropout linear voltage regulator from onsemi, orderable in the SOT-223 package. The ordering code fixes the exact configuration you receive — package, grade and packing — so procurement starts with matching this code character-for-character against your BOM, not just the base series name.
When you request a quote, include the full ordering code, the target packing format (reel, tube, tray or cut tape), your quantity and any date-code or lot requirements. We reconfirm manufacturer, suffix, package, date code and traceability against the actual offered lot before any commercial quote is issued, and every RFQ gets a reply within 24 hours.
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Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
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Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. NCP1117ST33T3G names the SOT-223 configuration; a code that differs by even one suffix character may be a different device. Always quote the complete code exactly as it appears on your BOM.
The package (SOT-223) is the physical form of the device itself. Packing describes how the devices are delivered — reel, tube, tray or cut tape. The same ordering code can ship in different packing formats depending on the lot, so confirm the required packing format when you submit your RFQ.
Traceability evidence — lot and date-code information, labels and photos — is confirmed per lot at quotation time, because it depends on the actual lot offered. Tell us which documents your receiving inspection requires when you submit the RFQ, and we will confirm what can be provided for the offered lot.
Add NCP1117ST33T3G to your RFQ with the complete ordering code, the manufacturer (onsemi), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.