ST lists LM317T as ACTIVE — an adjustable three-terminal positive voltage regulator, 1.2 V to 37 V output, TO-220 package. Adjustability is the procurement advantage: one part number covers any rail from 1.2 V to 37 V with two resistors, so it replaces a shelf of fixed-voltage regulators and simplifies spares. Selection advice: the T suffix denotes the TO-220 through-hole package — the LM317 also ships in DPAK, SOT-223 and other SMD packages under different suffixes, so match the full LM317T code to your footprint and heatsinking plan. As a linear regulator, verify input-to-output differential and load current against thermal limits. Parameters verified against the ST official product page. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.
LM317T is a Adjustable voltage regulator from STMicroelectronics, 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. LM317T 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 LM317T to your RFQ with the complete ordering code, the manufacturer (STMicroelectronics), your quantity, the target packing format and any date-code requirements. We reply to every RFQ within 24 hours.