SMD Schottky Diodes and Mixed Rectifier Kits
Collection scope: surface-mount Schottky diodes and rectifiers for small-signal and power applications, with voltage- and quantity-selectable packs. Listings span tiny SOD bodies, SOT-23 signal arrangements and larger SMA, SMAF, SMB and SMC rectifier outlines. Some 90-piece kits include ordinary silicon rectifiers alongside Schottky diodes, and a SOT-23 menu offers non-Schottky BAV99/BAW56 choices. Check the selected device and pack rather than applying this category name to every option.
Compare by device and assembly format
- Compact two-terminal SMD: PMEG2010BEA/3010BEA/4010BEA menus are listed in SOD-323; SD103AW versus SD103AWS and 1N5817W/5818W/5819W versus WS selections differ in stated SOD-123/SOD-323 outlines. RB521S-30 is listed in SOD-523; MBR0520/0530/0540 in SOD-123FL. The 0805 or 1206 size words in titles do not replace mechanical case dimensions or an approved PCB land pattern.
- Rectifier-format SMD: SS14/SS24/SS34/SS54, SS12–SS120, B140A/B240A/B340A, B220–B2100 and related menus offer different nominal reverse-voltage and current grades. The chosen package can be SMA, SMAF, SMB or SMC even under one shared title: SS34 and SS54 listings explicitly offer separate SMA/SMB/SMC variants. SS110F/SS210F/SS310F/SS510F list SMAF bulk packs. Confirm each selected part's actual rating and dimensions, particularly where a headline contains a conflicting “1KV” or DO-214 package description.
- Signal arrangements: BAT54, BAT54A, BAT54C and BAT54S variants in SOT-23 include distinct single, common-terminal or series arrangements. BAS70-04 is another listed SOT-23 option. Pinout and internal diode connections matter as much as voltage. In the BAT54A/C/BAV99/BAW56 menu, BAV99 and BAW56 are different signal-diode families and must not be assumed to be Schottky replacements.
- Mixed kits: 90-piece, nine-value listings describe ten pieces each of 1N4001/M1, 1N4004/M4, 1N4007/M7 and SS14/SS16/SS24/SS26/SS34/SS36. The 1N400x/M-series choices are ordinary silicon rectifiers, not Schottky devices. Other listings select one part number and pack size, such as 10 versus 100 pieces or 100 versus 3,000; they are not multi-value kits unless contents explicitly say so.
Selection and BOM checklist
- Choose the exact Schottky part number and topology, then compare reverse-voltage limit, forward current, surge behavior, forward voltage at the intended current and reverse leakage at the intended temperature with its datasheet. A headline “low drop” is not a guaranteed value at every operating point.
- Match the selected SOD/SOT/DO-214 outline and terminal orientation to the PCB footprint; distinguish SMA from SMAF, SMB and SMC and check cathode marking or SOT-23 pin mapping.
- Evaluate dissipation and temperature rise for the actual board copper and ambient, applying the selected manufacturer's derating. Voltage and current labels in some imported specification rows are reversed or internally inconsistent; do not use them as validated design limits.
- On the BOM, record the exact grade, package, quantity per selected option and whether a kit contains non-Schottky devices. A product title that says “original” or references certification is not independent verification of provenance or compliance.
Frequently asked questions
Is SS34 in SMA equivalent to SS34 in SMB or SMC?
Not without checking the actual manufacturer's part, land pattern and thermal/current limits. The case options are mechanically different.
Are BAV99 and BAW56 Schottky diodes because they appear in this collection?
No such equivalence follows from the collection or shared product title. Confirm each selected family and topology before using it as a substitute for BAT54.
Does a 90-piece kit contain 90 of each Schottky grade?
No. The described kit totals 90 across nine values, ten each, and includes three ordinary silicon rectifier values.
Can I identify a SOD-323 footprint from “0805” alone?
No. Check the exact package drawing and recommended land pattern for the selected part, as size nicknames can be ambiguous.
