Schottky Rectifier Diodes, Axial and SMD
About this collection: Schottky rectifier diode listings for single-diode and selected dual-device applications, in axial through-hole, SMA/SMC surface-mount, TO-252/TO-263 and TO-247 packages. Some product menus here also offer conventional silicon, fast-recovery or switching diodes under a shared “Schottky rectifier” title. The actual chosen part number, not this collection heading, defines the device technology and ratings.
Compare the stocked listing types
- Axial rectifiers: 1N5820/1N5821/1N5822 selections are advertised in 10-piece DO-201AD packs with distinct 20/30/40 V grades. Other menus include 1N5824/1N5825, SB120–SB2200, SR540/SR560/SR5100/SR5200 and 10SQ/12SQ/15SQ/20SQ/30SQ nominal current and voltage choices. Each chosen variant is a specific part and pack, not every voltage in its shared title.
- SMD rectifiers: SS14/SS24/SS34/SS54 variants and SK34/SK54/SK84/SK86/SK810/SK1010 options are listed across SMA and SMC; another SMC menu offers SS34, SS36, SS310, SS315, SS320, SS52–SS520 choices. SK510C listings offer 10, 20, 50 or 100 pieces. Match the exact case dimensions and land pattern rather than substituting all “SMD Schottky” packages.
- Higher-current and dual packages: MBR4045WT/MBR4060WT/MBR6045WT TO-247, STPS41H100CG TO-263/D2PAK, VB40100C TO-263 and 12CWQ10FN TO-252 listings require part-specific pinout, diode arrangement and heatsinking checks. Do not assume two-terminal equivalence from the headline voltage/current alone.
- Small-signal and other technologies: BAT41/BAT42/BAT43/BAT46 DO-35 choices are small-signal parts, not direct replacements for power rectifiers. Listings headed 1N4004/1N4007 are general-purpose silicon rectifiers, not Schottky devices; menus containing 1N540x, FR, HER, RL, UF, 1N4937 and 1N4148 also include conventional rectifier, recovery or switching families. In the 1N400x/1N58xx mixed packs, select 1N5819 or 1N5822 only when that is the actual desired Schottky option.
Engineering purchase checklist
- Specify the exact part number, diode topology and quantity. A single-grade 50- or 100-piece variant is not an assortment just because the title lists many model numbers.
- Compare maximum repetitive reverse voltage with the worst-case applied reverse stress, and assess average forward current, surge duty, forward drop and reverse leakage at the circuit's operating temperature. Claims such as “low drop” are not substitutes for curves and limits on a datasheet.
- Check polarity, axial lead geometry or SMD land pattern, plus junction-to-ambient/case thermal path and derating for the actual board or heatsink. Solar and converter use cases in titles do not certify suitability for a particular installation.
- Resolve inconsistent imported fields before procurement. Several listings place voltage numbers in forward-current fields or label a rectifier as an LED or voltage regulator; use the selected manufacturer's qualified data and physical package for approval, not those labels.
Frequently asked questions
Are 1N4007 and 1N5822 both Schottky rectifiers?
No. 1N4007 is a conventional silicon rectifier, while 1N5822 is listed as a Schottky option. They differ in reverse rating, conduction and switching behavior; check exact datasheets.
Does “30SQ050” mean I receive every 10SQ, 20SQ and 30SQ grade?
No. The variant selector identifies which grade is ordered. Confirm its pack quantity and electrical rating individually.
Can I swap a TO-263 dual diode with an axial or SMA diode at the same voltage?
Not by voltage alone. Compare pinout, internal arrangement, current, thermal resistance and mounting footprint.
Are all items here suitable for photovoltaic reverse-current protection?
No blanket suitability is established. Check the exact device's reverse voltage, current, temperature and system-level safety requirements for the intended design.
