Dissipatore di calore in alluminio per Seeed Studio XIAO: 6061-T6 aluminium, 1.0 mm fins at 2.0 mm pitch, 0.05 mm over 100 mm flatness, 0.35 K/W thermal resi...
Dissipatore di calore in alluminio per Seeed Studio XIAO: 6061-T6 aluminium, 1.0 mm fins at 2.0 mm pitch, 0.05 mm over 100 mm flatness, 0.35 K/W thermal resi...
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This Dissipatore di calore in alluminio per Seeed Studio XIAO is stamped from 6061-T6 aluminium with 1.0 mm fins at 2.0 mm pitch, giving a measured thermal resistance of 0.35 K/W at ΔT = 60 K. The 1.5 mm base holds 0.05 mm over 100 mm, verified on a granite plate, and the assembly runs at 120,000 pcs per month from a single ISO9001 line in Dongguan.
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.
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A single 160 T stroke forms the whole Dissipatore di calore in alluminio per Seeed Studio XIAO, so part cost stops scaling with complexity. Tooling runs ±0.05 mm, and the 8 s cycle feeds a 120,000 pcs line.
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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.
Every stroke is dimensionally identical, so ±0.10 mm hole position carries across the batch. That is what makes EV and OBC charger volume programs repeatable.
The zinc-nickel plating, trivalent passivation finish is applied after forming, so corrosion protection does not get cut through at the fin roots the way it does on machined alternatives.
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.
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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.
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Each batch carries a CMM report from CMM 0.001 mm resolution. We record flatness, pitch, base thickness and hole position, and flag anything outside ±0.10 mm before it leaves the line.
Lot traceability runs from coil to carton: heat number, press stroke range and inspection record stay attached, so a field issue can be tied back to a specific run.
Flatness is measured on granite rather than on cast iron, because 0.05 mm over 100 mm at 20 x 20 x 10 mm reads differently on a plate that has not been lapped. Records keep both readings.
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.
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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 Dissipatore di calore in alluminio per Seeed Studio XIAO 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.
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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 |
Standard packing is PE bag + export carton, 20 kg per carton. We quote FOB Shenzhen. Export cartons are labelled with lot, quantity and inspection status, and full documentation including the inspection report travels with the goods.
With 1.0 mm fins and standard PE bag + export carton, 20 kg per carton, damage is rare. For heavy sea routes or automated handling we suggest double-layer interleaving, which we can specify at no tooling cost. We have shipped 120,000 pcs per month this way without a transit claim in the last 3 years.
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.
The key is avoiding a second metal at the wet contact area. We recommend zinc-nickel plating, trivalent passivation and, where the part touches an aluminium chassis, an isolating washer. Tell us the mating material and we will specify the coating accordingly.
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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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The line sits in Dongguan in a single ISO9001 plant. 160 T presses cover the Dissipatore di calore in alluminio per Seeed Studio XIAO family, and 120,000 pcs per month is current committed output.
Our EV and OBC charger experience runs back to the first tooling programme in 2015. That history is why the standard zinc-nickel plating, trivalent passivation and ±0.10 mm are conservative rather than optimistic.
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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.
Request a quote: sc@bquq.com | WhatsApp +86 13713157787 | Dongguan, China
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| 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 |
