What Cosel makes for data centers
public · HQ Japan
Cosel is a publicly listed company and based in Japan. It appears on 1 part of the AI data center — Power shelves & PSUs — in the role of manufacturer. That part sits in Layer 4 — Servers, racks & integration. Its shares trade on Tokyo Stock Exchange as 6905.T.
Listing
Tokyo Stock Exchange: 6905.T· 1287 JPY -1.30% · mkt cap 52.9B JPY
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
1 part across 1 layer
No disclosed data-center revenue share on file.
Parts, by layer
Layer 4 — Servers, racks & integration
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Power shelves & PSUs | manufacturer | inferred | AcBel, Advanced Energy/Artesyn, Bel Fuse, Chicony Power, Delta Electronics, Eaton |
Where Cosel sits in the stack
Cosel's placements in this catalog cover 1 part, all in layer 4, servers, racks & integration. None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- Power shelves & PSUs — The rack-mounted power shelves that convert facility AC or DC input into the regulated rail distributed to trays across the rack, built to the Open Rack V3 33 kW-class spec used in rack-scale AI systems.
Closest peers in this catalog
Questions about Cosel
- What does Cosel make for AI data centers?
- This catalog places Cosel on 1 part: Power shelves & PSUs (manufacturer).
- Is Cosel publicly traded?
- Yes — Cosel is listed on Tokyo Stock Exchange under 6905.T. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Where is Cosel based?
- Japan, per the company record in this catalog.
- Who else makes power shelves & PSUs for AI data centers?
- AcBel, Advanced Energy/Artesyn, Bel Fuse, Chicony Power, Delta Electronics and Eaton are also placed on Power shelves & PSUs in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Cosel the mix is 1 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.