Industrial / Heat Sinks
SRQ-XJ-42
The SRQ-XJ-42 is an extruded aluminum heat sink with a reinforced base suitable for mounting heavier power devices without mechanical deformation. Its fin geometry supports both natural convection and supplemental fan cooling. Common applications include EV charging infrastructure, industrial rectifiers, and high-current switching circuits.
Key Features
- Reinforced extruded aluminum base supports heavier power modules without deflection
- Thick base plate provides structural rigidity for bolt-down power device mounting
- High fin count maximizes convective surface area for elevated thermal loads
- Suitable for direct mounting of large IGBT, SCR, or power module packages
- Anodized finish provides corrosion resistance in industrial enclosure environments
Key Specifications
- Product type: heat sink / thermal management component
- Application focus: optical transceiver, networking, power electronics, or industrial electronics thermal management
- Material: aluminum alloy reference; confirm final alloy, temper, and finish during RFQ
- Process note: confirm extrusion, die casting, CNC machining, skiving, bonding, or surface finishing from the customer drawing
- +3 more specs below
Request drawing: This product has local image and specification coverage. Ask sales to confirm the latest drawing revision before sampling or tooling review.
SRQ-XJ-42 Specifications
Product typeheat sink / thermal management component
Application focusoptical transceiver, networking, power electronics, or industrial electronics thermal management
Materialaluminum alloy reference; confirm final alloy, temper, and finish during RFQ
Process noteconfirm extrusion, die casting, CNC machining, skiving, bonding, or surface finishing from the customer drawing
Drawing statusRequest Drawing during RFQ; local PDF not available from the legacy archive
Asset statusOld-site product image available
RFQ checkconfirm dimensions, fin geometry, thermal interface, mounting method, surface finish, packaging, and drawing revision
Typical Applications
Large IGBT or SCR modules in industrial power conversion equipment
High-current power rectifiers requiring rigid mechanical mounting support
Industrial motor drives with heavy power semiconductor assemblies
Traction control power stages in electric vehicle charging infrastructure
Welding inverter power stages with bolted power module attachment
Frequently Asked Questions
What mounting hardware is compatible with the SRQ-XJ-42 reinforced base?
The SRQ-XJ-42 base is designed to accept M4 and M5 machine screws for power device mounting, with sufficient material thickness to prevent thread stripping under recommended torque values. Custom drilling patterns can be accommodated for OEM applications requiring non-standard device footprints.
How does the reinforced base affect thermal performance?
The thicker base increases lateral thermal spreading, reducing the spreading resistance between the device contact area and the fin array. This is particularly beneficial for large-footprint power modules where heat is generated across a wide die area rather than a single point source.
Can the SRQ-XJ-42 be used with liquid cooling attachments?
The reinforced base is compatible with cold plate attachments if liquid cooling is required for very high power densities. The flat, machined base surface provides a suitable interface for bonding or clamping a liquid cold plate, enabling hybrid thermal management strategies.
SRQ-XJ-42 Details
CategoryIndustrial
SubcategoryHeat Sinks
Naming TemplateProduct name from catalog
BrandCZT
OriginChina
Drawing StatusRequest drawing
Related Products
Need a Custom Solution?
CZT offers OEM/ODM services with flexible MOQ. Contact our engineering team for custom connector solutions.