ProductsDiscrete Semiconductors1N5817
PACKAGE REFERENCEDO-41Confirm case, pinout and ordering suffix before purchase.
MANUFACTURER PART RECORD

1N5817

onsemi

1N5817 is a JEDEC-registered Schottky rectifier diode — 20 V reverse voltage, 1 A average rectified current, forward drop maximum 0.45 V at 1 A, DO-41 axial package, −65 °C to +125 °C. The low forward drop is the selection point: roughly half the loss of a PN diode at 1 A — the default Schottky for reverse-polarity protection and low-voltage rectification. Selection advice: lifecycle note — onsemi lists its axial 1N5817 variants as Obsolete, but the 1N5817 is a multi-source JEDEC number; for ongoing production specify a current-production 1N5817 from an active manufacturer. Voltage-grade siblings 1N5818 (30 V) and 1N5819 (40 V) share the package — pick the grade that covers your rail with margin, since Schottky leakage rises with voltage and temperature. Evidence: onsemi/Vishay datasheets confirm 20 V, 1 A, 0.45 V VF, DO-41. Match the full order code on your BOM. State quantity, packing and date-code requirements in your RFQ; we reconfirm the offered lot before quotation and reply within 24 hours.

Discrete SemiconductorsSchottky diodeDO-41
MPN
1N5817
Manufacturer
onsemi
Family
Schottky diode
Package
DO-41
Manufacturer channel coverage
Checked by RFQ
Data last checked
Commercial check required
PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
1N5817
Manufacturer
onsemi
Product family
Schottky diode
Category
Discrete Semiconductors
Package reference
DO-41
Manufacturer-channel report
Confirmed on request
Sourceics price status
Quoted for required quantity
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
SELECTION GUIDANCE

1N5817 selection guidance

1N5817 is a Schottky diode from onsemi, orderable in the DO-41 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.

QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Discrete Semiconductors records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

MARKET INSIGHTS

Procurement coverage for 1N5817

In-depth buyer guides on the market forces affecting this part category — allocation, mergers and technology shifts.

COMMON QUESTIONS

1N5817 FAQ

What do the suffixes in 1N5817 mean?

Every suffix in a manufacturer ordering code identifies one exact orderable device — package, temperature grade, packing format or a revision. 1N5817 names the DO-41 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.

What is the difference between package and packing for 1N5817?

The package (DO-41) 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.

Can you provide traceability documents for 1N5817?

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.

How do I request a quotation for 1N5817?

Add 1N5817 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.