aluminum heat sink for seeed studio xiao: 6061-T6 aluminium, tolerance 0.10 mm, surface black anodize Type II, 10-15 µm, lead time 12 working days, MOQ 1000 pcs. Capacity 120,000 pcs for switch-mode power supply. Drawing review and first-article report included.
aluminum heat sink for seeed studio xiao
Key Takeaway
Aluminum heat sink for Seeed Studio XIAO is built with copper-alloy CuZn37, 0.3 mm fin thickness, 2.0 mm fin pitch, and 0.35 K/W thermal resistance. General tolerance is ±0.20 mm, production runs start at 1000 pcs, and installed capacity reaches 800,000 pcs. Tooling and qualification lead time is 12 working days, with sandblast plus epoxy powder coating RAL 9005 as the surface finish.

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Key Takeaway
Aluminum heat sink for Seeed Studio XIAO is built to copper-alloy CuZn37 with 0.3 mm fin thickness, 2.0 mm fin pitch, and 0.35 K/W thermal resistance. General tolerance is ±0.20 mm, production runs start at 1000 pcs, and installed capacity reaches 800,000 pcs. Tooling and qualification lead time is quoted at 12 working days, with sandblast plus epoxy powder coating RAL 9005 as the surface finish.
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Key Takeaway
Aluminum heat sink for Seeed Studio XIAO is specified with copper-alloy CuZn37, 0.3 mm fin thickness, 2.0 mm fin pitch, and 0.35 K/W thermal resistance. General tolerance is ±0.20 mm, production runs start at 1000 pcs, and installed capacity reaches 800,000 pcs. Lead time for tooling and qualification is quoted at 12 working days, with sandblast plus epoxy powder coating RAL 9005 as the surface finish.
This guide covers aluminum heat sink for seeed studio xiao from material selection through inspection, with the numbers we actually work to: ±0.20 mm on general dimensions, 1000 pcs for production runs, and 800,000 pcs of installed capacity.
Key Specifications at a Glance
| Parameter | Value / Range |
|---|---|
| Material | copper-alloy CuZn37 |
| Fin thickness | 0.3 mm |
| Fin pitch | 2.0 mm |
| Thermal resistance | 0.35 K/W |
| Surface finish | sandblast + epoxy powder coating RAL 9005 |
| General tolerance | ±0.20 mm |
Market and Technical Context
Lead time pressure has compressed across 1U server and AI accelerator. What used to be a 12-week tooling and qualification cycle is now quoted at 12 working days, which only works if tooling design and process validation run in parallel.
The technical bar keeps rising: assemblies that once accepted ±0.20 mm now specify tighter control on critical features, which pushes the decision to tooling design rather than to final inspection.
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How We Manufacture It
The route for aluminum heat sink for seeed studio xiao starts with a process window, not a machine. We fix material condition and tooling geometry first, then confirm that ±0.20 mm is held at production speed rather than on a single slow part.
Heat treatment and surface treatment are scheduled as controlled steps, not afterthoughts. sandblast + epoxy powder coating RAL 9005 is applied to a defined thickness range and verified, because variation here causes more field failures than dimensional drift.
Deburring and edge conditioning are specified on the drawing for aluminum heat sink for seeed studio xiao. A sharp edge that passes dimensional inspection can still fail assembly, so edge break is a controlled parameter rather than a cosmetic one.
Material and Surface Finish
Surface specification for aluminum heat sink for seeed studio xiao is sandblast + epoxy powder coating RAL 9005, chosen for the service environment in 1U server and AI accelerator. Thickness is verified on a reference coupon from the same batch rather than assumed from process settings.
Where aluminum heat sink for seeed studio xiao sees contact loading, material hardness is specified alongside dimensional tolerance. Hardness without a defined test method is the most common source of incoming-inspection disputes.
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Recycled content and RoHS/REACH declarations are available for aluminum heat sink for seeed studio xiao on request. If your 1U server and AI accelerator customer audits material origin, ask for the mill certificate at quote stage, not at delivery.
Tolerance and Inspection
General dimensions on aluminum heat sink for seeed studio xiao are held to ±0.20 mm; critical features are identified on the drawing and controlled separately with a tighter band.
First-article inspection for aluminum heat sink for seeed studio xiao reports every dimension on the drawing, not a sample of them. That report is the reference for the rest of the batch and for any future reorder.
Traceability is kept by heat lot and production date. If a field issue ever appears with aluminum heat sink for seeed studio xiao, we can identify which batch, which tooling set, and which inspection record applies.
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Where It Is Used
Service environment drives more redesigns than load does. aluminum heat sink for seeed studio xiao in outdoor or washdown service needs sandblast + epoxy powder coating RAL 9005 and sealing considered at design stage, not added later.
Retrofit requests are common: an existing assembly needs aluminum heat sink for seeed studio xiao in a slightly different size. Because the process window is already known, 12 working days on a retrofit is usually shorter than on a new part.
What to Confirm Before Ordering
Compare quotes on the same basis: material grade, sandblast + epoxy powder coating RAL 9005, inspection scope, and packaging. A lower unit price that drops 100% inspection is not a lower total cost.
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Confirm the reorder path. If aluminum heat sink for seeed studio xiao is documented with tooling drawings and a first-article report on file, a repeat order years later reproduces the original part instead of approximating it.
FAQ: Your Questions Before Ordering
What is the minimum order quantity for aluminum heat sink for seeed studio xiao?
Prototype quantities start well below production minimums. Production runs for aluminum heat sink for seeed studio xiao start at 1000 pcs, which is where the process window is proven and unit cost stabilises.
How long does production take for aluminum heat sink for seeed studio xiao?
Standard lead time for aluminum heat sink for seeed studio xiao is 12 working days after drawing approval and tooling sign-off. Prototypes are typically faster because they bypass tooling, and repeat orders are faster still because tooling exists.
Do you provide material and inspection certificates?
Yes. Send the drawing in any common format. We review it for manufacturability first and flag any feature where ±0.20 mm would require an extra operation, so you can decide before tooling.
What surface finishes are available for aluminum heat sink for seeed studio xiao?
Yes. Material certificates, heat-lot traceability, and first-article inspection reports ship with the order. If your 1U server and AI accelerator customer requires additional documentation, specify it at quote stage.
How do you handle a design change mid-program?
Yes, and we recommend it. Prototyping aluminum heat sink for seeed studio xiao without tooling validates fit and function at a fraction of tooling cost, and usually surfaces a design change before steel is cut.
Send the drawing and the annual volume. You will get a manufacturability review, a process route, and a quote that states ±0.20 mm, 12 working days, and 1000 pcs explicitly rather than by implication.



Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | copper-alloy CuZn37 |
| Tolerance | ±0.20 mm |
| Lead time | 12 working days |
| MOQ | 1000 pcs |
| Capacity | 800,000 pcs |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| Copper-alloy CuZn37 | High thermal conductivity and strength | Higher material cost than pure aluminum |
| 0.3 mm fin thickness | Compact XIAO builds with tight space | More delicate handling during assembly |
| 2.0 mm fin pitch | Balanced airflow and thermal resistance | Less surface area than tighter pitch |
| Sandblast + epoxy powder coating RAL 9005 | Durable, uniform black finish | Adds process step and lead time |
| ±0.20 mm general tolerance | Standard production runs | Critical features may need tighter control |
Process / inspection
| Stage | Control | Record |
|---|---|---|
| Material condition | Fix copper-alloy CuZn37 condition before machining | Material certificate and condition log |
| Tooling geometry | Confirm tooling design holds ±0.20 mm at production speed | Tooling validation report |
| Production run | Run at 1000 pcs minimum with in-process checks | First article and in-process inspection data |
| Surface finish | Apply sandblast + epoxy powder coating RAL 9005 | Coating thickness and adhesion record |
| Final inspection | Verify general tolerance ±0.20 mm and thermal resistance 0.35 K/W | Inspection report and capacity log |

Frequently Asked Questions
What material is used for the aluminum heat sink for Seeed Studio XIAO?
The heat sink uses copper-alloy CuZn37, not pure aluminum. This material provides a balance of thermal conductivity and mechanical strength. It is specified with 0.3 mm fin thickness and 2.0 mm fin pitch, achieving 0.35 K/W thermal resistance. General tolerance is ±0.20 mm, and production runs start at 1000 pcs.
What is the lead time for production runs?
Lead time is quoted at 12 working days for tooling and qualification. This is possible because tooling design and process validation run in parallel. The installed capacity is 800,000 pcs, and minimum order quantity is 1000 pcs. Surface finish is sandblast plus epoxy powder coating RAL 9005.
What tolerance can be held on critical features?
General tolerance is ±0.20 mm. For critical features, tighter control may be specified, which shifts the decision to tooling design rather than final inspection. We confirm that ±0.20 mm is held at production speed, not on a single slow part. This is validated during the 12 working day qualification cycle.
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What surface finish options are available?
The standard surface finish is sandblast plus epoxy powder coating in RAL 9005. This provides a durable, uniform black finish. It adds a process step but improves corrosion resistance and appearance. The coating is applied after machining and before final inspection for 0.35 K/W thermal resistance.
What is the minimum order quantity and capacity?
Minimum order quantity is 1000 pcs for production runs. Installed capacity is 800,000 pcs. Lead time is 12 working days. These numbers support both pilot builds and volume production for Seeed Studio XIAO heat sinks with ±0.20 mm general tolerance and 0.35 K/W thermal resistance.
How is thermal resistance verified?
Thermal resistance is specified at 0.35 K/W. It is verified through process validation and final inspection. The 0.3 mm fin thickness and 2.0 mm fin pitch are controlled to maintain this value. General tolerance is ±0.20 mm, and production runs start at 1000 pcs with 800,000 pcs capacity.
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What should be confirmed before ordering?
Confirm material condition, tooling geometry, and that ±0.20 mm is held at production speed. Also confirm surface finish RAL 9005, lead time of 12 working days, MOQ of 1000 pcs, and capacity of 800,000 pcs. Thermal resistance should be 0.35 K/W with 0.3 mm fin thickness and 2.0 mm fin pitch.
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Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | copper-alloy CuZn37 |
| Tolerance | ±0.20 mm |
| Lead time | 12 working days |
| MOQ | 1000 pcs |
| Capacity | 800,000 pcs |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| CuZn37 with 0.3 mm fin thickness and 2.0 mm fin pitch | Seeed Studio XIAO thermal management where 0.35 K/W thermal resistance is required | Higher material cost than pure aluminum; requires tooling and qualification quoted at 12 working days |
| Sandblast + epoxy powder coating RAL 9005 | Applications needing uniform black finish and surface durability | Adds process steps; general tolerance remains ±0.20 mm |
| Production runs from 1000 pcs | Volume programs that can absorb tooling setup | Below 1000 pcs is not quoted as a production run |
| Installed capacity 800,000 pcs | Forecasted demand up to 800,000 pcs | Capacity planning must be confirmed against lead time of 12 working days |
Frequently Asked Questions
What material is the aluminum heat sink for Seeed Studio XIAO made from?
The heat sink is specified with copper-alloy CuZn37. Although the product is described as an aluminum heat sink, the current specification uses CuZn37 with 0.3 mm fin thickness, 2.0 mm fin pitch, and 0.35 K/W thermal resistance. General tolerance is ±0.20 mm, and surface finish is sandblast plus epoxy powder coating RAL 9005.
What is the minimum order quantity for this heat sink?
Production runs start at 1000 pcs. Installed capacity reaches 800,000 pcs, and lead time for tooling and qualification is quoted at 12 working days. For quantities below 1000 pcs, confirm with the manufacturer whether a prototype or pilot run is possible before placing a production order.
What is the thermal resistance of the Seeed Studio XIAO heat sink?
Thermal resistance is 0.35 K/W. This value is tied to the 0.3 mm fin thickness and 2.0 mm fin pitch of the copper-alloy CuZn37 design. Final thermal performance also depends on mounting pressure, airflow, and the thermal interface material used in your assembly.
What surface finish options are available?
The specified surface finish is sandblast plus epoxy powder coating RAL 9005. This provides a uniform black finish with durable coating adhesion. If you need a different color or an uncoated surface, confirm availability before ordering, since the general tolerance remains ±0.20 mm and coating adds process steps.
What is the lead time for tooling and qualification?
Lead time for tooling and qualification is quoted at 12 working days. This assumes tooling design and process validation run in parallel. Production runs start at 1000 pcs, and installed capacity reaches 800,000 pcs, so schedule capacity against your forecast before release.
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What tolerance can I expect on general dimensions?
General tolerance is ±0.20 mm. This applies to the copper-alloy CuZn37 heat sink with 0.3 mm fin thickness and 2.0 mm fin pitch. If your application requires tighter tolerances on specific features, confirm them before ordering because the standard inspection record uses ±0.20 mm.
What should I confirm before ordering this heat sink?
Confirm material as copper-alloy CuZn37, fin thickness 0.3 mm, fin pitch 2.0 mm, thermal resistance 0.35 K/W, general tolerance ±0.20 mm, surface finish sandblast plus epoxy powder coating RAL 9005, MOQ 1000 pcs, lead time 12 working days, and capacity 800,000 pcs.
Frequently Asked Questions
What is the thermal resistance of this aluminum heat sink for Seeed Studio XIAO?
The thermal resistance is 0.35 K/W. This value is measured under specified conditions with CuZn37 material, 0.3 mm fin thickness, and 2.0 mm fin pitch. It helps predict junction temperature rise in your XIAO application.
What is the minimum order quantity for production runs?
Production runs start at 1000 pcs. This MOQ covers tooling setup, material procurement, and qualification. For quantities below 1000 pcs, please contact us to discuss prototype or small-batch options.
What is the lead time for tooling and qualification?
Tooling and qualification lead time is quoted at 12 working days. This includes mold preparation, first-article inspection, and thermal validation. Production lead time after qualification is separate and depends on order quantity.
What material is used and why not pure aluminum?
We use copper-alloy CuZn37. It offers higher thermal conductivity and better corrosion resistance than pure aluminum, though at higher cost. For Seeed Studio XIAO, this alloy provides reliable heat dissipation with a durable sandblast and epoxy powder coating RAL 9005 finish.
What is the general tolerance and how is it inspected?
General tolerance is ±0.20 mm. Inspection uses calibrated gauges and vision systems at final inspection. Each batch records measured values against the drawing. Tighter tolerances can be quoted separately if your XIAO assembly requires them.
What surface finish is applied and what are the options?
Standard finish is sandblast plus epoxy powder coating RAL 9005. This provides a durable black surface with good adhesion. Other colors or finishes may be available on request, but they may affect lead time and thermal performance.
What is the installed capacity for this heat sink?
Installed capacity reaches 800,000 pcs. This supports medium-to-high volume production for Seeed Studio XIAO projects. Capacity can be scaled with additional tooling if your demand grows beyond this level.


