Seeed Studio XIAO用アルミニウムヒートシンク: 6061-T6 aluminium, 1.0 mm fins at 2.0 mm pitch, 0.05 mm over 100 mm flatness, 0.35 K/W thermal resistance. MOQ 50 pcs, ships ...
Seeed Studio XIAO用アルミニウムヒートシンク: 6061-T6 aluminium, 1.0 mm fins at 2.0 mm pitch, 0.05 mm over 100 mm flatness, 0.35 K/W thermal resistance. MOQ 50 pcs, ships ...
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A Seeed Studio XIAO用アルミニウムヒートシンク in 6061-T6 aluminium delivers 0.35 K/W thermal resistance under ΔT = 60 K, natural convection. Fins are 1.0 mm thick at 2.0 mm pitch over a 1.5 mm base, and every batch ships with a CMM report at CMM 0.001 mm resolution.
Stamping gives a repeatable 1.0 mm fin profile that extrusion cannot hold: the die forms every fin in one stroke, so pitch stays within ±0.05 mm across a 120,000 pcs run.
Low fin gauge is where stamping wins: 1.0 mm fins at 2.0 mm pitch give more surface per cubic millimetre than a machined or extruded profile of the same envelope.
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The one-piece geometry removes the adhesive layer found in two-part coolers, cutting the thermal path. Nothing sits between 6061-T6 aluminium and the airflow except the stamped surface itself.
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Stamped construction tolerates batch variation better than extrusion: die wear shows up first as a measurable shift in fin pitch, which inspection catches at CMM 0.001 mm resolution rather than in the field.
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One supplier now covers 1.0 mm to 1.0 mm fin gauges from the same 160 T press family, so a thermal redesign is a tooling change rather than a new vendor.
技術資料：プレス加工アルミニウムヒートシンク・冷却フィンコレクション
The standard material is 6061-T6 aluminium, supplied with zinc-nickel plating, trivalent passivation. For applications where EV and OBC charger exposure is a concern, we recommend the passivated route; where conductivity matters more than weight, copper C110 raises thermal performance and roughly doubles unit mass.
General dimensions run to ±0.10 mm, with critical features such as ±0.03 mm on fin pitch held separately. Formed geometry inherits tooling repeatability of ±0.05 mm, and hole position is held to ±0.10 mm. Tighter classes need an extra press operation, so it is worth deciding before tooling rather than after.
Incoming 6061-T6 aluminium is checked for thickness and hardness before it enters the press. After forming, CMM 0.001 mm resolution confirms 0.05 mm over 100 mm and 2.0 mm against the drawing.
Sampling is AQL 0.65 for critical dimensions and 1.5 for general, with CMM 0.001 mm resolution on every first article. Deviations beyond ±0.10 mm trigger a full-lot sort.
We inspect 1.0 mm fin tips for burr and crack after forming, because stamping can split a root without shifting any drawing dimension. Burr limit is set per part.
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Final containment is PE bag + export carton, 20 kg per carton. Every carton is labelled with lot, quantity and inspection status, and the record is kept for 10 years against the ISO9001 file.
EV and OBC charger customers typically specify 6061-T6 aluminium for corrosion reasons and then hold the drawing to ±0.10 mm. The 120,000 pcs line absorbs the volume without a second source.
EV and OBC charger packaging and vibration rules push toward one-piece construction. A stamped Seeed Studio XIAO用アルミニウムヒートシンク has no adhesive to creep, which is the usual failure mode in two-part coolers.
EV and OBC charger designs often run a 2.0 m/s forced-air path. 0.35 K/W at ΔT = 60 K, natural convection means EV and OBC charger can hold its target with fan power below the acoustic limit.
For EV and OBC charger prototypes, 7 working days covers drawing review and first article. Production lots move to 12 working days once the ±0.05 mm capability is signed off.
| Parameter | Value / Range |
|---|---|
| Material | 6061-T6 aluminium |
| Fin thickness | 1.0 mm |
| Fin pitch | 2.0 mm |
| Fin height | 22 mm |
| Base thickness | 1.5 mm |
| Base flatness | 0.05 mm over 100 mm |
| Thermal resistance | 0.35 K/W |
| Thermal test condition | ΔT = 60 K, natural convection |
| Surface finish | zinc-nickel plating, trivalent passivation |
| Size range | 20 x 20 x 10 mm |
We test at ΔT = 60 K, natural convection and report 0.35 K/W. That is a steady-state figure, not a transient: for EV and OBC charger first-power-on behaviour you need a different test, and we can run it on request.
カスタムCNCコレットチャック工具セット（フライス・ドリル工具付属） と比較してください。
0.05 mm over 100 mm measured on granite surface plate, 20 °C. This is the number that matters for EV and OBC charger, because the thermal pad needs even contact. If your assembly needs better, say so and we can add a skim operation.
Yes. We can add clips, screws or a fan shroud as a kitted assembly, with the parts bagged and labelled per set. This is common in EV and OBC charger programs and adds about 3 working days.
We supply a 2D drawing with the CMM report, and 3D STEP on request. Both show flatness callouts and tooling split lines, which matters if you are checking 0.05 mm over 100 mm in your own assembly.
Yes. Send your enclosure airflow, inlet temperature and the heat load to be dissipated, and we will run a steady-state model and return a suggested 1.0 mm and 2.0 mm combination. That usually saves one tooling iteration.
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Source-direct from Dongguan: coil stock, forming, surface treatment and inspection happen in one building, so 0.05 mm over 100 mm flatness is verified before the part is packed.
Production runs on 8 s cycles with in-line vision on 0.05 mm over 100 mm. That is what keeps a 120,000 pcs commitment credible in peak season.
Quality staff sit beside the press, not in a separate room. Deviations on 2.0 mm or 0.05 mm over 100 mm stop the run at the tool rather than at final inspection.
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Request a quote: sc@bquq.com | WhatsApp +86 13713157787 | Dongguan, China
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技術資料：中国工場とのエスカレーションと問題解決
| Parameter | Specification |
|---|---|
| Material | 6061-T6 aluminium |
| Fin thickness | 1.0 mm |
| Fin pitch | 2.0 mm |
| Fin height | 22 mm |
| Base thickness | 1.5 mm |
| Base flatness | 0.05 mm over 100 mm |
| Thermal resistance | 0.35 K/W |
| Surface finish | zinc-nickel plating, trivalent passivation |
| Monthly capacity | 120,000 pcs |
| MOQ (prototype) | 50 pcs |
| Lead time (production) | 12 working days |
| Size range | 20 x 20 x 10 mm |
