Aluminum SSR Heat Sink For Solid State Relays & Power Modules

A precision-extruded and CNC-machined aluminum heat sink built for solid state relays (SSR), thyristors, rectifiers, and IGBT power modules. Symmetric dual-fin arrays deliver maximum surface area in a compact footprint, while the central mounting channel and pre-drilled holes simplify assembly.

 

 

- Dual-side dense fins for high convective heat dissipation

- Pre-machined mounting holes for standard SSR and power modules

- 6063-T5 aluminum with optional anodized or sandblasted finish

- Custom lengths, hole patterns, and fin densities available

 

 

This SSR heat sink is engineered for industrial power electronics where reliable thermal management directly affects component lifespan and system uptime. The symmetric aluminum extrusion features two banks of closely spaced fins that create a large effective surface area, while the raised central base forms a clamping zone for standard single-phase or three-phase solid state relay heat sink mounting.

 

Each unit is CNC-machined to ensure flatness on the mounting surface, accurate hole spacing, and clean edges for safe handling during assembly. The bottom profile includes a recessed channel and multiple mounting slots, allowing the heat sink to be fixed to a panel while the device is clamped in place. Typical applications include motor control cabinets, furnace controls, rectifier power supplies, EV charging infrastructure, and automation equipment.

 

Engineering note for buyers: SSR junction temperature should typically stay below 85–100 °C depending on the relay rating. If you share the SSR model, load current, and ambient temperature, we can recommend the right heat sink size and confirm whether natural convection is sufficient or a fan is needed.

 

 

For Procurement Teams

Consistent Quality & Export-Ready Documentation

Every batch ships with material certificates, RoHS/REACH compliance statements, and inspection reports. We support L/C, T/T, and established Incoterms for international orders.

 

For Engineers & Designers

Accurate Fit & Thermal Performance

Flatness, hole spacing, and thermal resistance are measured and reported. We provide STEP files and 2D drawings for design-in, and can run thermal simulations for high-load applications.

 

For Distributors & OEMs

Custom Branding & Packaging

Logo laser marking, neutral packaging, and volume pricing are available. We can adapt hole patterns and dimensions to match your SSR or module line.

 

For Project Contractors

Reliable Delivery & On-Site Support

Standard samples ship in 7–10 days. For large projects, we offer pre-shipment inspection, consolidated packaging, and after-sales engineering support.

 

 

Reference dimensions for the pictured unit. Custom lengths, widths, hole patterns, and fin counts are available on request.

 

 

 

Not sure which heat sink fits your SSR or power module? Use this quick reference, then send us your load details for a verified recommendation.

 

 

 

 

Solid State Relays

Single-phase and three-phase SSR modules in heating, lighting, and motor control systems.

 

Thyristors & SCR

Furnace controls, soft starters, and phase-angle firing controllers.

 

Rectifier Power Supplies

Bridge rectifiers, battery chargers, and DC power conversion units.

 

EV Charging & Automotive

On-board chargers, DC/DC converters, and power module cooling.

 

Industrial Automation

PLC output modules, servo drives, and CNC machine controls.

 

Heat Treatment Equipment

Temperature controllers and high-current switching assemblies.

 

 

We work as a manufacturing partner, not just a catalog supplier. Share your SSR model, mounting drawing, or thermal target, and we will recommend the right aluminum heat sink configuration.

 

Free Fit Review

Send your device footprint and enclosure constraints. We check hole spacing, clearance, and clamping force.

 

Custom CNC Machining

Length, width, hole patterns, slots, threads, and surface finishes are all customizable.

 

Full Documentation

datasheet, 2D drawing, STEP file, material certificate, and RoHS/REACH statement included.

 

Flexible MOQ

Low MOQ for prototypes; competitive pricing for 1,000+ piece production runs.

 

Global Export Experience

FOB, CIF, DDP, and door-to-door logistics support for North America, Europe, and Asia.

 

 

 

Q: What is an SSR heat sink and why is it needed?

A: A solid state relay heat sink dissipates the heat generated by the relay's semiconductor junction during operation. Without adequate cooling, SSRs overheat, fail prematurely, or trigger thermal shutdown.

 

Q: Can you customize the hole pattern for my SSR model?

Yes. We can CNC-machine the central mounting holes, bottom slots, and side features to match your device footprint and enclosure layout.

 

Q: What is the MOQ and lead time?

Standard samples ship in 7–10 working days. Small-batch production is typically 2–3 weeks; volume orders depend on quantity and finish. Flexible MOQ for first-time buyers.

 

Q: Do you provide thermal calculations?

Yes. Send us the SSR current rating, voltage drop, duty cycle, ambient temperature, and airflow conditions, and we will estimate junction temperature and recommend the right heat sink size.

 

Q: What surface finishes and certifications are available?

Natural aluminum, sandblasted, clear anodized, or black anodized. All materials are RoHS/REACH compliant, and our factory is ISO 9001 certified.

 

 

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