1N5819 Schottky Diodes, SMD and Through-Hole

Explore 1N5819 Schottky rectifier options for component replacement, prototyping and bill-of-materials purchasing. This collection includes single-grade 1N5819 packs, closely related 1N5817/1N5818 grades, surface-mount selections, other Schottky families and mixed diode assortments. A listing that mentions 1N5819 may offer a different part or a kit in its selected option; use the exact variant and stated contents as your starting point.

Find the right device and package

• Axial 1N5819: multiple 50-, 100- and 200-piece listings identify 1N5819 as a nominal 1 A, 40 V Schottky in DO-41 through-hole format. Menus alongside it offer 1N5817 (20 V), 1N5818 (30 V) and 1N5820/1N5822 or SR-series devices with different current and voltage grades. These are distinct parts, not interchangeable merely because they share a listing.
• SMD alternatives: SS14 listings identify a nominal 1 A, 40 V Schottky in SMA/DO-214AC, while some menus offer SS24, SS34, SS54 and SMAF, SMB or SMC outlines. 1N5819W/B5819W listings specify SOD-123 and 1N5819WS SOD-323; 1N5819HW and SD103AW/SD103AWS listings specify yet other device families or cases. Similar voltage labels do not establish identical footprint, current capability or thermal performance.
• Single-grade packs versus assortments: many selections supply one named grade in the displayed pack quantity, not all models in the title. Other listings offer 70-, 100-, 200-, 210- or 350-piece mixed sets with varying value counts and box options. Read the selected option and contents before estimating how many 1N5819 pieces you receive.
• Mixed diode families: assortment and long variant menus also contain 1N400x/M-series and 1N540x silicon rectifiers; FR, UF, HER and RL recovery/rectifier families; 1N4148/1N914 signal diodes; and some Zener or TVS kits. These must not be treated as 1N5819 Schottky parts just because they appear on this collection page. One eight-value, 100-piece kit specifies ten 1N5819 pieces and five 1N5822 pieces among other diode types.

Selection checklist

1. Match the exact selected part number, reverse-voltage rating and forward-current rating to the operating conditions and its manufacturer's datasheet. Compare forward voltage at your working current and temperature, reverse leakage and surge limits rather than relying on a general “low drop” claim.
2. Confirm DO-41 lead spacing and polarity for through-hole builds, or the actual SOD-123, SOD-323, SMA, SMAF, SMB or SMC mechanical drawing and land pattern for SMD builds. A size nickname such as 0805/1206 or a shared title is not a footprint specification.
3. Account for power dissipation, board copper, ambient temperature and derating. Some imported attribute rows swap forward and reverse specifications or give conflicting voltage labels; those rows are not verified electrical limits.
4. Record grade, package, pack count and assortment breakdown separately on the BOM. Supplier wording such as “original” or “high quality” is not proof of provenance or compliance.

Frequently asked questions

Is SS14 a drop-in replacement for axial 1N5819?

No. Both may be listed as nominal 1 A, 40 V Schottky rectifiers, but SS14 is a surface-mount case and axial 1N5819 is through-hole. Verify electrical and mechanical requirements against the selected datasheets.

Does every option in an 1N5819 listing ship as 1N5819?

No. Several product menus let you select 1N5817, 1N5818, SS-series grades, ordinary rectifiers or a mixed kit. The selected variant determines what is ordered.

Are 1N4007, FR107 and 1N4148 Schottky equivalents?

No. They belong to different diode families with different intended characteristics. Do not substitute them on the basis of a collection title.

How many 1N5819 parts are in an assortment?

It varies by kit. Some offer a single-value 1N5819 pack, while a specified 100-piece eight-value assortment contains ten 1N5819 pieces. Check the selected kit's breakdown before ordering.