Industrial / Heat Sinks
SRQ-XJ-44
The SRQ-XJ-44 is a wide-body heat sink offering an extended fin array for applications with elevated thermal loads and moderate airflow availability. Its anodized surface treatment enhances both radiation cooling and environmental durability. Applicable in high-power laser drivers, industrial amplifiers, and energy storage systems.
Key Features
- Wide-body profile provides extended fin array for high thermal load applications
- Increased fin count and surface area supports elevated power dissipation requirements
- Broad base accommodates multiple large power devices in a single assembly
- Optimized fin spacing balances airflow resistance with heat transfer surface area
- Modular width allows integration into standard 19-inch rack and panel systems
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-44 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
High-power three-phase inverters with multiple parallel switching devices
Industrial power conditioning equipment with distributed heat sources
Large-format DC power supplies for electrochemical processing
Multi-axis servo drive systems with high aggregate power dissipation
Broadcast and telecom power amplifier stages with wide thermal footprint
Frequently Asked Questions
What advantage does a wide-body heat sink offer over a standard-width design?
A wide-body design increases total fin surface area without increasing height, making it ideal when vertical clearance is limited but thermal load is high. The extended fin array lowers overall thermal resistance and allows more power devices to share a single heat sink, simplifying assembly and reducing component count.
How should airflow be directed across the SRQ-XJ-44 fin array?
Airflow should be directed parallel to the fin channels along the length of the heat sink for maximum efficiency. Cross-flow or turbulent airflow reduces effective heat transfer. In forced-air systems, a fan or blower sized to match the fin channel pressure drop should be selected for optimal performance.
Can the SRQ-XJ-44 be cut to a custom length?
As an extruded profile, the SRQ-XJ-44 can be cut to custom lengths to match specific enclosure or PCB dimensions. Cut ends should be deburred and, if required, re-anodized to maintain corrosion protection. Contact CZT for custom-length OEM orders with factory-finished cut ends.
SRQ-XJ-44 Details
CategoryIndustrial
SubcategoryHeat Sinks
Naming TemplateProduct name from catalog
BrandCZT
OriginChina
Drawing StatusRequest drawing
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Need a Custom Solution?
CZT offers OEM/ODM services with flexible MOQ. Contact our engineering team for custom connector solutions.