Stamped Heat Sinks. Built for Your Production

Thin-sheet cooling with integrated bends, punched features and mounting details—engineered around your device, airflow and assembly process.

Sheet-metal efficiency | Material and geometry matched to your heat load.

Assembly-ready features | Mounting details designed into the part.

Repeatable supply | Approved drawings carried into production.

Bring us your drawing, package and target temperature.

Discuss My Stamped Heat Sink

Natural aluminum stamped heat sink with six separated bent cooling fingers and a central mounting hole.

A Small Sheet-Metal Part. A Practical Thermal Path

Stamped heat sinks conduct heat from a discrete device into formed sheet metal, adding exposed surface area without the bulk of a machined block.

Formed from sheet

Punching and bending combine the contact area, cooling surfaces and mounting details.

Designed around the device

The contact footprint, hole pattern and PCB keep-outs are reviewed together.

Best-fit applications

A practical option for low-to-moderate heat loads and cost-sensitive repeat production.

0.5–3 mm

Conventional sheet thickness

10–150 mm

Conventional length and width range

5–60 mm

Conventional formed height

Find out whether stamped cooling fits your device and production plan.

Review My Application

Get More Function from Every Formed Feature

Integrating cooling and mounting features into the sheet helps simplify the part and the assembly around it.

Less material to move

Thin aluminum sheet keeps component weight low while providing useful exposed area.

Fewer separate details

Punched holes, tabs and location features can reduce secondary operations.

A better fit in the enclosure

Bends and cut-outs follow the available space and nearby component keep-outs.

A repeatable production route

Controlled tooling and first-piece approval help maintain geometry between batches.

Turn the features you need into a simpler production part.

Explore My Part Design

Choose the Sheet and Finish for the Job

Balance heat spreading, weight, corrosion protection and assembly requirements before freezing the material specification.

Material	Why choose it	What we review
1050 / 1060 aluminum	Low weight and good formability for efficient punched-and-bent geometry.	Sheet temper, bend radius and contact stiffness.
Copper sheet	Higher conductivity helps spread heat in a compact footprint.	Mass, springback, oxidation protection and material cost.
Specified sheet grade	Match a customer-approved alloy and temper to the drawing.	Material certification and forming feasibility.

Anodized aluminum

Black or clear anodize can support corrosion protection and appearance; contact and grounding areas are defined on the drawing.

Controlled contact surfaces

Masking and finish selection preserve the intended thermal and electrical interfaces.

Match your material and finish to the actual assembly conditions.

Specify My Material & Finish

Define the Geometry Before You Commit to Tooling

Sheet thickness, bend geometry and mounting position must work together to keep the part formable and the contact area stable.

Length × width

10–150 × 10–150 mm conventional envelope

Formed height

5–60 mm conventional range

Sheet thickness

0.5–3 mm conventional range

Bends and reliefs

Reviewed against alloy, temper, thickness and tooling access

Contact and hole locations

Dimensioned from the approved functional datum

Burr direction

Defined away from critical contact and assembly edges

Punched gaps, smooth bend radii and continuous sheet construction on a six-finger stamped aluminum heat sink.

Keep the contact pad stable Check bend-line distance from the device footprint.

Give the tool access Review hole-to-edge distance and relief geometry.

Protect nearby components Check the full formed envelope and insertion path.

Send your envelope and interfaces for a focused manufacturability review.

Check My Drawing

Start with the Thermal Budget

A heat sink is selected from the complete heat path, using the real device loss, inlet air temperature and mounting conditions.

1 Define the inputs

Power dissipation, maximum junction temperature, inlet air temperature, package resistance and interface material.

2 Allocate the heat path

RθSA ≤ (TJ,max − TA) / P − RθJC − RθCS

3 Verify in the assembly

Confirm temperature rise with the approved mounting pressure, orientation and installed airflow.

Governing Thermal Resistance Budget

RθSA ≤ (TJ,max − TA) / P − RθJC − RθCS

Measure what the device sees Record power, air temperature, case or contact temperature, orientation and measurement positions.

Keep comparisons consistent Compare results only with the same heat source, interface and airflow conditions.

Share the operating conditions and we will review the available thermal margin.

Review My Thermal Budget

TO-220 device clamped to a six-finger stamped heat sink with insulating mounting hardware.

Make the Thermal Contact Easy to Assemble

The device, interface material and mounting hardware need a controlled contact path that also respects electrical clearances.

Device footprint | Match the contact pad and mounting hole to the approved package drawing.

Contact pressure | Choose a clip or fastener arrangement that maintains contact without overstressing the device or PCB.

Electrical isolation | Select a rated insulating pad and shoulder washer where the circuit requires isolation.

Assembly clearance | Check lead space, tool access, creepage and clearance in the complete equipment.

Review the complete mounting stack before releasing the part.

Discuss My Mounting Stack

Give the Air a Clear Route

Openings and formed surfaces work best when their orientation matches the air path inside the enclosure.

Natural convection

Position the formed channels to let warm air rise. Keep the entry and exit clear of nearby parts.

Forced airflow

Align openings with the installed air stream. Check bypass paths and the fan operating point in the actual enclosure.

Review the installed condition | Orientation, component spacing and enclosure vents are part of the thermal design.

Let us review the airflow around your stamped part.

Review My Airflow Layout

From Flat Sheet to a Controlled Production Part

Each forming stage carries the functional drawing forward, so the finished part is ready for the next assembly operation.

Material release

Confirm sheet grade, thickness and batch identification.

Blanking & punching

Produce the outline, holes and openings with the specified burr direction.

Forming

Control bend radius, angle, springback and contact-pad stability.

Deburring

Remove sharp edges around handling and functional interfaces.

Finishing

Apply the specified treatment and protect masked contact areas.

Final release

Check approved dimensions, appearance, identification and packaging.

Build your inspection requirements into the manufacturing route.

Plan My Production Route

Define Quality Where It Affects the Assembly

Functional dimensions and agreed thermal checks turn an approved sample into a repeatable acceptance standard.

Stamped finger heat sink on a supported inspection bench beside an inactive digital caliper and a pin gauge.

Incoming material

Sheet grade, thickness, condition and material batch records.

Formed geometry

Contact footprint, bend angle, hole position, envelope and burr control.

Fit and thermal checks

Approved package fit, mounting stack and thermal verification under defined conditions.

A traceable document pack

FAI, dimensional report, material records, CoC and order-specific compliance information.

Make your critical features visible in the inspection plan.

Define My Quality Requirements

Compact Cooling for Everyday Power Electronics

Stamped cooling fits discrete hot components where space, assembly access and repeat production matter together.

Industrial power supply electronics with a compact stamped finger heat sink on a discrete power device.

Industrial power supplies

Support rectifiers and switching devices with a compact contact-and-fin structure.

LED driver electronics

Help manage discrete power-device heat inside a space-limited driver assembly.

Industrial motor-control PCB with a black stamped finger heat sink and separated device leads.

Motor-control boards

Add local cooling around selected power devices without crowding the control electronics.

DC/DC converter PCB with a six-finger copper stamped heat sink and separated device leads.

DC/DC conversion

Fit a defined device footprint while preserving lead and service clearances.

Tell us which device gets hot and where it sits in your equipment.

Match My Application

Bring the Requirements. Leave with a Clear Part Definition

A focused engineering handover reduces avoidable changes between the drawing, the first sample and the production order.

What to send

2D drawing or 3D model with key dimensions and tolerances
Device package and target contact footprint
Power and ambient conditions (dissipation, inlet temperature)
Available envelope and PCB component keep-outs
Annual demand and planned batch sizes

Feasibility review

Check material, bends, holes, keep-outs and tooling approach.

Drawing alignment

Agree functional datums, finish, mounting stack and critical features.

Sample verification

Review dimensional results, fit and the defined thermal test.

Production release

Freeze the drawing revision, control plan, packaging and change process.

Get your engineering and purchasing teams working from the same definition.

Start My DFM Review

Plan the Tooling, Sample and Repeat Order Together

Separate development decisions from production costs and agree the supply conditions before the first batch.

Phase 01

Engineering samples

Confirm the tooling route and charged sample scope.
Conventional drawing-based samples: 10–20 working days after drawing freeze.
New tooling and first approval: typically 4–8 weeks.

Phase 02

Production quotation

Separate tooling, material, forming, finishing and inspection costs.
Compare prices at 100, 500, 1,000 and 3,000 pieces.
Agree the economic batch size for your approved geometry.

Phase 03

Repeat supply

Use one controlled drawing revision and approved sample.
Align rolling forecasts with agreed delivery releases.
Approve material, process and supplier changes through ECN.

Documents for purchasing:

Quotation scope Drawing revision Approved sample Inspection plan Packaging specification

Share your forecast to build a practical sample-to-production plan.

Plan My Supply Schedule

Questions Before You Freeze the Design

Resolve the details that affect thermal performance, assembly and tooling before the part enters your production BOM.

How much heat can a stamped heat sink dissipate?

There is no single wattage rating. Power, inlet air temperature, device footprint, interface resistance, orientation and airflow determine the usable temperature rise.

When is stamped sheet a good choice?

It suits compact discrete-device cooling when a formed thin-sheet geometry can meet the thermal target and simplify repeat assembly.

Can holes, tabs and clips be integrated?

Yes. Punched and formed features are reviewed together with material temper, bend radius, springback and tool access.

Does black anodizing provide electrical isolation?

Do not rely on ordinary anodizing as a rated insulating barrier. Specify the required electrical isolation and verify the complete mounting stack.

Do we need a new tool?

The route depends on geometry and volume. We review the available tooling, sample approach and dedicated tooling cost before release.

Which files help you quote?

Send a drawing or model, material and finish requirements, device package, thermal conditions and forecast quantity. We will identify any missing inputs during review.

Have a requirement that needs a closer engineering review?

Ask About My Design

Let’s Shape the Right Stamped Heat Sink

Tell us about the hot device, available space and production plan. We will help define a practical next step.

Drawing-led engineering | Material, bends and functional interfaces reviewed together.

Thermal-fit review | Actual power, ambient conditions and airflow considered.

Assembly support | Mounting and isolation details checked in the full stack.

Controlled production | Approved drawings, inspection and traceable batches.

One project contact | Engineering and supply questions handled in one place.

Discuss Your Project