ssd heat sink: copper-alloy CuZn37, tolerance 0.10 mm, surface clear anodize Type II, 5-10 µm, lead time 15 working days, MOQ 5000 pcs. Capacity 800,000 pcs for EV and OBC charger. Drawing review and first-article report included.
ssd heat sink
Key Takeaway
The ssd heat sink uses copper-alloy CuZn37 with 0.3 mm fins at 3.0 mm pitch, achieving 0.62 K/W thermal resistance. General tolerance is ±0.15 mm, and clear anodize Type II at 5-10 µm is standard. Tooling is designed around measured process capability, so ±0.15 mm comes from tooling geometry, not inspection filtering. This makes 10 working days realistic for production orders.
Key Takeaway
The ssd heat sink uses copper-alloy CuZn37 with 0.3 mm fins at 3.0 mm pitch, achieving 0.62 K/W thermal resistance. General tolerance is ±0.15 mm, and clear anodize Type II at 5-10 µm is standard. Tooling is designed around measured process capability, so ±0.15 mm comes from tooling geometry, not inspection filtering. This makes 10 working days realistic for production orders.
ssd heat sink sits at the intersection of three constraints that rarely agree: dimensional stability, unit cost, and delivery time. This page breaks down how we resolve them in production rather than in a brochure.
Key Specifications at a Glance
| Parameter | Value / Range |
|---|---|
| Material | copper-alloy CuZn37 |
| Fin thickness | 0.3 mm |
| Fin pitch | 3.0 mm |
| Thermal resistance | 0.62 K/W |
| Surface finish | clear anodize Type II, 5-10 µm |
| General tolerance | ±0.15 mm |
Market and Technical Context
Tariff and logistics uncertainty has made regional qualification a priority in IGBT power module. Buyers increasingly ask for a second qualified source, which changes how ssd heat sink is specified and how tolerances are documented.
The technical bar keeps rising: assemblies that once accepted ±0.15 mm now specify tighter control on critical features, which pushes the decision to tooling design rather than to final inspection.
How We Manufacture It
Tooling is designed around the measured capability of the process, so ±0.15 mm is a consequence of tooling geometry rather than an inspection filter. That is why 10 working days is realistic instead of optimistic.
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In production, ssd heat sink runs with in-process checks at fixed intervals. Operators log dimensions every 30 to 50 pieces, which catches tool wear before the batch drifts outside ±0.15 mm.
Final inspection for ssd heat sink is sampling-based for general dimensions and 100% for critical features. The split is agreed before tooling, because moving a feature from general to critical changes cost and 10 working days.
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Material and Surface Finish
copper-alloy CuZn37 is the default for ssd heat sink because it holds ±0.15 mm predictably and machines without work hardening surprises. Alternatives are quoted when corrosion or conductivity dominates the requirement.
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Material condition matters as much as grade. copper-alloy CuZn37 supplied in the wrong temper will drift after machining, which is why ssd heat sink is stress-relieved before finishing when the geometry is asymmetric.
Surface specification for ssd heat sink is clear anodize Type II, 5-10 µm, chosen for the service environment in IGBT power module. Thickness is verified on a reference coupon from the same batch rather than assumed from process settings.
Tolerance and Inspection
First-article inspection for ssd heat sink 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 ssd heat sink, we can identify which batch, which tooling set, and which inspection record applies.
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Non-conforming material is quarantined physically, not just in the system. For ssd heat sink, that means the batch stays in a marked area until disposition is documented, which prevents the most common shipping error.
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Where It Is Used
In assembly, ssd heat sink is usually constrained by the mating part rather than by its own specification. Sharing the interface drawing early prevents the common failure where both parts are in tolerance but will not assemble.
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Maintenance access matters. Where ssd heat sink is a wear item, we recommend specifying it as a spare with its own part number so reorder does not require a full drawing review.
What to Confirm Before Ordering
Define critical features at quote stage. Moving a feature from general ±0.15 mm to critical after tooling adds cost and extends 10 working days, which is the most avoidable delay in custom sourcing.
Packaging is part of the specification. Parts arriving with edge damage or mixed lots cost more than the packaging difference, especially for ssd heat sink with finished surfaces.
FAQ: Your Questions Before Ordering
What tolerance can you hold on ssd heat sink?
Prototype quantities start well below production minimums. Production runs for ssd heat sink start at 1000 pcs, which is where the process window is proven and unit cost stabilises.
Can you work from our existing drawing?
Yes. Send the drawing in any common format. We review it for manufacturability first and flag any feature where ±0.15 mm would require an extra operation, so you can decide before tooling.
What surface finishes are available for ssd heat sink?
Yes. Material certificates, heat-lot traceability, and first-article inspection reports ship with the order. If your IGBT power module customer requires additional documentation, specify it at quote stage.
Can you prototype before tooling?
clear anodize Type II, 5-10 µm is standard for ssd heat sink. Other finishes are quoted with a defined thickness range and verified on a coupon from the same batch rather than assumed from process settings.
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How do you handle a design change mid-program?
Changes are documented against the original first-article report. We identify which dimensions are affected, requote only the affected operations, and tell you whether existing stock of ssd heat sink remains usable.
If ssd heat sink is already in production elsewhere, send a sample and the current drawing. We will quote against it and tell you honestly whether switching improves cost, lead time, or neither.
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Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | copper-alloy CuZn37 |
| Tolerance | ±0.15 mm |
| Lead time | 10 working days |
| MOQ | Standard for this process: 500 pcs |
| Capacity | Standard for this process: 50,000 pcs/month |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| CuZn37 with clear anodize | General SSD cooling | Moderate thermal conductivity vs pure copper |
| Tighter critical features | High-performance assemblies | Higher tooling cost, longer lead time |
| Standard ±0.15 mm | Cost-sensitive projects | Less margin for assembly variation |
| In-process checks | Volume production | Requires fixed interval inspection setup |
Process / inspection
| Stage | Control | Record |
|---|---|---|
| Tooling design | Measured process capability | Tooling geometry sign-off |
| Incoming material | CuZn37 composition check | Material certificate |
| Production | In-process checks at fixed intervals | Inspection log |
| Final inspection | General tolerance ±0.15 mm | Dimensional report |
| Surface finish | Clear anodize Type II, 5-10 µm | Coating thickness record |
Frequently Asked Questions
What is the thermal resistance of this ssd heat sink?
The thermal resistance is 0.62 K/W. This is achieved with copper-alloy CuZn37, 0.3 mm fin thickness, and 3.0 mm fin pitch. The clear anodize Type II coating at 5-10 µm also contributes to consistent performance.
What is the general tolerance and how is it achieved?
General tolerance is ±0.15 mm. It is achieved through tooling geometry designed around measured process capability, not by final inspection filtering. This approach makes the tolerance a consequence of the process, ensuring repeatability in production.
What is the lead time for production orders?
Lead time is 10 working days. This is realistic because tooling is designed around measured process capability, so ±0.15 mm is built into the tooling rather than added by inspection. In-process checks at fixed intervals support this schedule.
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What material and surface finish are used?
Material is copper-alloy CuZn37. Surface finish is clear anodize Type II with a thickness of 5-10 µm. This combination provides corrosion resistance and stable thermal performance for SSD cooling applications.
Why is regional qualification important for this heat sink?
Tariff and logistics uncertainty has made regional qualification a priority. Buyers increasingly ask for a second qualified source, which changes how the ssd heat sink is specified and how tolerances are documented. This affects sourcing and documentation requirements.
How do you control quality during production?
In production, the ssd heat sink runs with in-process checks at fixed intervals. Tooling is designed around measured process capability, so ±0.15 mm is a result of tooling geometry. Final inspection verifies general tolerance and surface finish.
What should I confirm before ordering?
Confirm critical feature tolerances, as assemblies that once accepted ±0.15 mm may now specify tighter control. Also verify material CuZn37, surface finish clear anodize Type II 5-10 µm, lead time 10 working days, and whether a second qualified source is required.
Key Specifications and Selection Guide
Spec comparison
| Parameter | Value / Range |
|---|---|
| Material | Copper-alloy CuZn37 |
| Tolerance | ±0.15 mm |
| Lead time | 10 working days |
| MOQ | Not specified in article |
| Capacity | Not specified in article |
Selection / comparison
| Option | Best for | Trade-off |
|---|---|---|
| CuZn37 with 0.3 mm fins at 3.0 mm pitch | Balanced thermal performance and cost | Limited to 0.62 K/W thermal resistance |
| Clear anodize Type II, 5-10 µm | Corrosion resistance and surface durability | Adds process steps and cost |
| ±0.15 mm general tolerance | Standard IGBT power module and SSD applications | Tighter tolerances may require secondary operations |
| 10 working days production lead time | Urgent or regional qualification orders | May not accommodate custom tooling changes |
| Second qualified source strategy | Supply chain risk mitigation | Requires duplicate tooling and inspection documentation |
Frequently Asked Questions
What is the thermal resistance of the ssd heat sink?
The ssd heat sink achieves 0.62 K/W thermal resistance using copper-alloy CuZn37 with 0.3 mm fins at 3.0 mm pitch. This value is measured under standard conditions and is suitable for many SSD and IGBT power module applications.
What material is used in the ssd heat sink?
The ssd heat sink is made from copper-alloy CuZn37. This material provides good thermal conductivity and is compatible with clear anodize Type II surface finishing at 5-10 µm thickness.
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What is the general tolerance for the ssd heat sink?
The general tolerance is ±0.15 mm. This comes from tooling geometry designed around measured process capability, not inspection filtering. Tighter tolerances on critical features may require additional processes.
What surface finish is standard for the ssd heat sink?
Clear anodize Type II at 5-10 µm is standard. This finish improves corrosion resistance and surface durability. It is applied after fin forming and before final inspection.
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What is the production lead time for the ssd heat sink?
Production lead time is 10 working days for standard orders. This is realistic because tooling is designed around measured process capability, so ±0.15 mm tolerance is achieved without inspection filtering.
Can the ssd heat sink be used in IGBT power modules?
Yes, the ssd heat sink is used in IGBT power modules and SSD applications. Its 0.62 K/W thermal resistance and ±0.15 mm tolerance suit many power module designs. Regional qualification and second-source strategies are common.
What should I confirm before ordering the ssd heat sink?
Confirm material CuZn37, fin thickness 0.3 mm, pitch 3.0 mm, thermal resistance 0.62 K/W, tolerance ±0.15 mm, surface finish clear anodize Type II 5-10 µm, and lead time 10 working days. Also discuss MOQ and capacity.
