When you offer excess components for sale, the list you send is the first thing a buyer judges. A clean list gets matched and quoted quickly. A list with missing part numbers, no date codes or mixed units goes to the bottom of the pile. This guide explains which columns to include, how to fill them, and the mistakes that slow buyers down.
Key takeaways
- One line per part number and lot, in a spreadsheet, with the full manufacturer part number.
- Brand, date code, quantity, packaging and condition are the fields buyers check first.
- Leave a field empty rather than guess. A wrong brand or date code causes more trouble than a blank one.
Which columns should the list have?
| Column | What to enter | Example |
|---|---|---|
| Manufacturer part number | The full orderable part number, including packaging and grade suffixes | TPS7A8801RTJT |
| Brand (manufacturer) | The manufacturer's name as printed on the label | Texas Instruments |
| Description | A short description, if you have one | LDO regulator |
| Date code | The date code printed on the label (often year and week, such as 2312) | 2312 |
| Quantity | The number of pieces, as a plain number | 3000 |
| Unit | Pieces. If you count in reels or trays, also give pieces per reel or tray | pcs |
| Packaging | Reel, cut tape, tray, tube, bag | Reel |
| Condition | Factory sealed, opened, or partial reel | Factory sealed |
| Storage notes | For moisture-sensitive parts: sealed moisture barrier bag or not | Sealed MBB |
If you hold the same part number with two different date codes, put them on two lines. Buyers often accept one date code and not the other.
How should each field be filled in?
- Part number: copy it from the label, not from your internal system. Internal codes mean nothing to a buyer. Keep every suffix: a missing "R" or "T" can mean a different package or packaging.
- Brand: use the manufacturer's name. If the label is unclear, leave the field empty and say so in the notes rather than guess.
- Date code: use the code on the label. If there are several lots in one box, list them separately.
- Quantity: a plain number of pieces. Avoid entries like "5 reels", "approx. 10k" or "188,593.00", which have to be converted and may be misread.
- Condition: be honest about opened reels and partial packages. Buyers will see it when the parts arrive.
What are the common mistakes?
- Sending a PDF or a photo of a list. Buyers have to retype it, which takes time and introduces errors.
- Mixing several part numbers in one cell. Use one line per part number.
- Using internal part codes instead of manufacturer part numbers.
- Leaving out the date code. Many buyers will not quote without it.
- Inconsistent units in the same column (pieces in one row, reels in the next).
- Hidden sheets, cover pages and instruction tabs that hide the real data. Put the list on the first sheet, or tell the buyer which sheet to read.
Do photos help?
Yes, when a buyer asks. Useful photos show the label with part number, brand, date code and quantity, and the packaging (sealed reel, moisture barrier bag, humidity indicator card). Keep photos separate from the spreadsheet. Spreadsheets with many embedded photos become very large and hard to open.
How to send your list to StockWake
Have excess or obsolete electronic components? Send us your list. We review it and reply by email if there is a fit. Your company name and contact details are never shown on the site.
You set a floor price. When we find a buyer, we sell above your floor price — our margin is the difference, and we charge you no fees. Goods ship directly from your location to the buyer; nothing needs to be imported into China.
You can upload an Excel or CSV file, or paste your list as text.
Frequently asked questions
Can I send my list in our own format? Yes. As long as each line has the part number and quantity, we can work with it. The columns above simply make matching faster.
What if I do not know the date code? Leave it empty and say so. It is better to tell a buyer the date code is unknown than to guess.
Should I include prices? You set a floor price for your stock. You can add it to the list or tell us separately.
Ready to start? Send us your surplus list.