High-Density Extruded Aluminum Heat Sink (101.9×19×150mm)
High-density fin extruded aluminum heat sink (101.9×19×150mm) for power electronics, LED drivers, and industrial applications. Custom lengths and machining available. Request a quote now.
- Product Introduction
Product Overview
This 101.9×19×150mm high-density fin aluminum heat sink is a ready-to-use, high-performance thermal management solution, designed for applications requiring compact form factors with maximum natural or forced convection cooling efficiency.
Manufactured from premium 6063-T5 aluminum alloy, this extruded heat sink features ultra-fine, closely spaced fins that maximize surface area within a small footprint. The one-piece extruded construction eliminates thermal interface resistance, delivering reliable heat dissipation for power supplies, converters, audio amplifiers, and other space-constrained electronics.


We offer this standard profile in stock and also provide full customization: custom lengths, CNC machining (drilling, tapping, milling), and surface treatments to meet your exact project requirements.
Product Specification
| Parameter | Technical Data |
| Model Reference | 101.9×19×150mm High-Density Extruded Heat Sink |
| Material | 6063-T5 Aluminum Alloy (standard) |
| Thermal Conductivity | 205–210 W/m·K |
| Overall Dimensions | Width: 101.9mm, Height: 19mm, Length: 150mm (custom size available) |
| Fin Design | High-density parallel fins, thin-wall construction |
| Base Thickness | 3.0mm (solid mounting base) |
| Standard Tolerance | ±0.1mm (length/width), ±0.2mm (height) |
| Surface Finish | Mill finish (standard); optional clear/black anodizing, chromate conversion |
| Mounting Options | Custom drilled holes, threaded inserts, mounting brackets |
| Custom Services | Cut-to-length, CNC machining, assembly, custom surface treatment |
Key Features & Benefits
High-Density Fin Design for Maximum Cooling Efficiency
The closely spaced, ultra-thin fins significantly increase the heat dissipation surface area, making this heat sink ideal for both natural convection and low-to-medium forced-air cooling applications. Even in compact spaces, it delivers efficient heat transfer to prevent overheating in high-power components.
One-Piece Extruded Construction, Low Thermal Resistance
Unlike bonded or assembled heat sinks, this extruded unit is a single continuous piece of aluminum. There are no thermal barriers between the base and fins, ensuring fast, uniform heat transfer from the component mounting surface to the surrounding air.
Lightweight, Sturdy & Cost-Effective
6063-T5 aluminum offers an excellent strength-to-weight ratio, reducing the overall weight of your device without compromising structural integrity. The extrusion manufacturing process also ensures consistent quality at scale, making this a cost-effective choice for both prototype and high-volume orders.
Ready-to-Use or Fully Customizable
This standard 150mm length profile is available from stock for quick delivery. For custom projects, we can cut the extrusion to any required length, add mounting holes, threaded inserts, or custom cutouts, and apply surface treatments to meet your aesthetic and corrosion-resistance needs.
Compliant with Global Standards
All our aluminum heat sinks are manufactured to ISO 9001 quality standards and comply with RoHS and REACH regulations, ensuring they meet the requirements for global markets including the EU, North America, and Asia.
Typical Applications
This high-density aluminum heat sink is widely used in space-constrained electronics and industrial applications, including:
1. Power electronics (switching power supplies, DC/AC converters, voltage regulators)
2. Audio & video equipment (power amplifiers, broadcast transmitters, AV receivers)
3. Industrial control systems (PLC modules, motor drives, industrial computers)
4. LED drivers and small-scale LED lighting fixtures
5. Telecommunications equipment (network switches, routers, base station modules)
6. Consumer electronics (gaming consoles, home appliances, embedded systems)

Our Production & Customization Process
We manage every stage of production to ensure quality, precision, and on-time delivery:
1.Aluminum Extrusion
High-grade 6063-T5 aluminum billets are heated and extruded through precision dies to form the high-density fin profile. This step creates a continuous, uniform structure with consistent fin spacing and dimensions.
2.Cut-to-Length & Finishing
Extruded profiles are cut to the required 150mm length (or custom length) using precision saws. Deburring is performed to ensure smooth, clean edges for safe handling and assembly.
3.CNC Machining (Optional)
If your project requires mounting holes, threaded inserts, or custom cutouts, our CNC machining team can add these features to your specifications, ensuring tight tolerances for easy integration.
4.Surface Treatment (Optional)
Anodizing, chromate conversion, or other surface treatments can be applied to enhance corrosion resistance, improve thermal emissivity, or meet specific aesthetic requirements.
5.Quality Control & Packaging
Every heat sink undergoes dimensional inspection and surface quality checks before packaging. We offer bulk packaging for OEM orders and export-ready packaging for global shipping.
Why Partner With Us for Your Heat Sink Needs?
1. Over 10 years of specialized experience in custom aluminum extrusion and thermal management solutions
2. A wide range of standard profiles (including this 101.9×19×150mm model) available from stock for fast delivery
3. In-house engineering support to help you select or customize the right heat sink for your application
4. Competitive pricing for both small-batch prototypes and large-volume OEM orders
5. Dedicated international account management with multilingual support and reliable global shipping


Contact our team today to request a quote for this standard heat sink or to discuss your custom thermal management requirements. Submit your requirement via www.zpheatsink.com/contact-us or email technical drawings to general@zp-aluminum.com to start the first step of your extruded heat sink project.
From Drawing To Reality, ZP helps you to achieve.
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