LM7805CT is a former Fairchild 5 V / 1 A positive three-terminal linear regulator in TO-220, tube packaging — fixed 5 V output, up to 35 V input, internal short-circuit current limiting, thermal overload protection and safe-area protection, which is why the 78xx series became the default 5 V rail in legacy equipment, Arduino-era boards and repair work. The built-in protection is the selection point: no external components are needed for a rugged 5 V supply, and the TO-220 tab bolts to a heatsink for continuous high-current service. Selection advice: onsemi lists LM7805CT as Discontinued (product discontinuance notice PD22098X, Q4 2017) — for new builds order the suggested direct replacement MC7805CTG (Pb-free, Active), which keeps the same TO-220 footprint and 5 V / 1 A rating. Any LM7805CT offer is end-of-life stock: require date-code traceability and check for remarked parts. Evidence: onsemi PDN records and distributor listings confirm the discontinued status of LM7805CT, the MC7805CTG replacement, 5 V / 1 A and TO-220. Match the full code. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
LM7805CT is a 5 V fixed voltage regulator from onsemi, orderable in the TO-220 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.
Exact MPN, manufacturer and suffix
Supplier type, quantity and freshness
Lot, labels, photos and documents
Price, lead time, payment and shipping
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
In-depth buyer guides on the market forces affecting this part category — allocation, mergers and technology shifts.
Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. LM7805CT names the TO-220 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 (TO-220) 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 LM7805CT 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.