6 Best Alternatives to the SGTKJSJS 2Pcs Aluminum Heat Sink (2026)
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You might be looking for sgtkjsjs 2pcs aluminum heat sink alternatives because the original unit does not fit your specific project constraints. The SGTKJSJS 5.9 x 2.91 Black Aluminum Heatsink offers a large surface area with a 5.9-inch length and 0.39-inch height. It uses black anodized aluminum and includes pre-coated thermal tape for easy installation. This makes it a strong choice for passive cooling of power transistors, ICs, or voltage regulators where space is not a primary concern.
However, you may need a different size, material, or mounting method. Some projects require smaller footprints for tight spaces, while others might benefit from copper for higher thermal conductivity. The alternatives on this list were chosen because their specifications overlap with the original. They share core traits like aluminum construction and adhesive backing. This ensures you can find a comparable passive cooling solution that better matches your exact dimensional or performance needs without sacrificing reliability.
How each alternative compares
Awxlumv 35x35x10mm Black Aluminum Heatsink
The Awxlumv 35x35x10mm heatsink is significantly smaller than the SGTKJSJS unit. It measures 1.38 inches square with a 0.39-inch height, compared to the SGTKJSJS 5.9-inch length. This makes it ideal for tight spaces around small ICs or chipsets. It shares the black aluminum material and pre-coated thermal tape backing. You give up surface area for a compact footprint. Choose this if your component is small and the SGTKJSJS size is too large for your board layout.
ZZHXSM 80mm Black Aluminum Heatsink 2-Pack
The ZZHXSM 80mm heatsink offers a different shape with a 3.15-inch length and 1.57-inch width. It is taller at 0.44 inches, providing more profile than the SGTKJSJS 0.39-inch height. It comes in a 2-pack, similar to the original. The black aluminum construction and thermal tape features are consistent. This option suits LED cooling or FPV transmitters where space is limited but a wider base is needed. It is a middle ground between the tiny 35mm and the long SGTKJSJS.
Awxlumv 40x40x20mm Aluminum Heatsink
The Awxlumv 40x40x20mm heatsink is much thicker at 0.79 inches, nearly double the SGTKJSJS height. It is square at 1.57 inches, offering a compact but tall profile. This extra height allows for better heat dissipation in tight spaces like GPU or VRM areas. It uses the same black aluminum and thermal tape. You trade the long, flat shape of the SGTKJSJS for a taller, square block. Pick this for components that need more vertical clearance and higher thermal mass.
Awxlumv 60x40x11mm Aluminum Heatsinks (2-Pack)
The Awxlumv 60x40x11mm heatsink is a 2-pack with a 3.15-inch length and 1.57-inch width. It is slightly taller at 0.43 inches than the SGTKJSJS. This size is versatile for VRM or LED cooling. It shares the black aluminum material and thermal tape backing. It offers more surface area than the smaller 35mm options but is more compact than the 5.9-inch SGTKJSJS. Choose this if you need multiple units for a project with moderate space constraints and standard adhesive mounting.
Awxlumv 100x45x5mm Thin Aluminum Heatsink
The Awxlumv 100x45x5mm heatsink is extremely thin at only 0.20 inches height, much lower than the SGTKJSJS 0.39-inch profile. It is long at 39.4 inches, which appears to be a data error for model 100x45x5mm, but the 5mm thickness is the key differentiator. This thin profile fits in very tight spaces for low-power electronics. It uses black aluminum and thermal tape. You sacrifice height for a low-profile fit. Select this for LED or FPV gear where vertical space is severely restricted.
Easycargo 20-Piece Copper and Aluminum Heatsink Kit
The Easycargo kit is a 20-piece set mixing copper and aluminum pads. The individual pads are small, around 0.55 inches square, and 0.28 inches thick. This is a kit solution for Raspberry Pi boards, unlike the single large SGTKJSJS unit. It includes multiple sizes for different chips on the board. The materials vary between copper and aluminum. Choose this for a complete Raspberry Pi cooling solution rather than a single large heatsink. It is not a direct size alternative but a comprehensive kit for multi-component cooling.
Quick picks
Our 7 picks
SGTKJSJS 5.9 x 2.91 Black Aluminum Heatsink
Best for: passive cooling of power transistors and ICs
- Material
- Aluminum
- Dimensions
- 5.9 x 2.91 x 0.39 inch
- Mounting Type
- Thermal Conductive Adhesive Tape
- Color
- Black
- Weight
- 10.7 ounces
View on Amazon: SGTKJSJS 5.9 x 2.91 Black Aluminum Heatsink Affiliate link
This SGTKJSJS heatsink is a black anodized aluminum block measuring 150 x 74 x 10 mm. It weighs 10.7 ounces per pair and comes with pre-coated thermal tape. The design maximizes surface area for air contact. You should use it for power transistors, FETs, ICs, and voltage regulators on PCB boards. It is a practical passive cooling solution for electronic components.
Pros
- Pure aluminum construction for efficient heat dissipation
- Pre-coated thermal conductive adhesive tape for easy installation
- Black anodized finish protects against corrosion
- Large 150 x 74 mm footprint for high surface area
Cons
- Thin 10 mm height limits heat dissipation capacity
- No included mounting hardware or screws
- Adhesive backing may not suit all surface types
Good fit if
- You need a simple passive cooler for power components
- You want a black finish to match your PCB
- You prefer pre-applied thermal tape for quick setup
Skip if
- You require high airflow active cooling for CPUs
- You need heavy-duty mounting with screws or clips
- You are cooling high-wattage processors requiring thick fins
Verdict: SGTKJSJS 150x74mm Black Aluminum Heatsink is a straightforward passive cooling option for low-to-medium power electronic components. It fits users who need a simple, adhesive-mounted solution for transistors or voltage regulators.
Awxlumv 35x35x10mm Black Aluminum Heatsink
Best for: cooling small ICs and chipsets
- Material
- anodized aluminum
- Dimensions
- 35mm x 35mm x 10mm
- Mounting Type
- Pre-applied thermal conductive tape
- Color
- Black
- Weight
- 0.35 ounces
View on Amazon: Awxlumv 35x35x10mm Black Aluminum Heatsink Affiliate link
This is a 35 x 35 x 10mm anodized aluminum heatsink designed for small components. It features pre-applied blue thermal conductive tape, so you do not need to cut or apply paste. The unit weighs 0.35 ounces and fits tight spaces. It suits PC chipsets, power ICs, and stepper motors. You get five pieces per pack for multiple cooling needs.
Pros
- Anodized aluminum construction for durability
- Pre-applied thermal conductive adhesive tape
- Compact 35 x 35 x 10mm dimensions
- Includes five units per package
Cons
- Small 10mm height limits heat dissipation
- Adhesive tape may leave residue
- No mounting screws included
Good fit if
- You need to cool small ICs or chipsets
- You want to avoid cutting thermal tape
- You have limited space around the component
Skip if
- You need to cool a high-wattage CPU
- You require screw-on mounting for stability
- You need a heatsink taller than 10mm
Verdict: Awxlumv 35mm Aluminum Heatsink provides a simple, adhesive-based cooling solution for low-power electronics. It is ideal for users who need quick installation on small components like power regulators or LED drivers.
ZZHXSM 80mm Black Aluminum Heatsink 2-Pack
Best for: Small passive cooling for LEDs
- Material
- Black anodized aluminum
- Cooling Method
- Passive
- Compatible Device
- 3D printers, LEDs, FPV transmitters
- Dimensions
- 80 x 40 x 11mm
- Mounting Type
- Thermal conductive adhesive tape
- Weight
- 1.26 ounces
View on Amazon: ZZHXSM 80mm Black Aluminum Heatsink 2-Pack Affiliate link
This ZZHXSM heatsink offers passive cooling for small electronics. It measures 80 by 40 by 11mm and weighs 36g per unit. The black anodized aluminum construction maximizes surface area for heat dissipation. It comes with pre-applied thermal conductive adhesive tape for easy installation. You can use it for 3D printers, LEDs, or FPV transmitters. The pack includes two identical units for your project.
Pros
- Black anodized aluminum material for durability
- Pre-coated thermal conductive adhesive tape
- Dimensions of 80 x 40 x 11mm
- Lightweight at 36g per unit
Cons
- Passive cooling only, no fan included
- Adhesive mounting limits repositioning
- Small 11mm height restricts airflow
Good fit if
- You need passive cooling for FPV gear
- You are building a 3D printer
- You require simple adhesive mounting
Skip if
- You need active fan cooling
- You require screw mounting options
- You need large surface area
Verdict: ZZHXSM 80x40mm Black Aluminum Heatsink fits users needing small, passive cooling for LEDs or FPV transmitters. It suits projects where space is tight and adhesive mounting is acceptable.
Awxlumv 40x40x20mm Aluminum Heatsink
Best for: GPU and VRM cooling in tight spaces
- Material
- Aluminum alloy
- Dimensions
- 1.57 x 1.57 x 0.79 inches
- Mounting Type
- Thermal Conductive Adhesive Tape
- Color
- Black
- Compatible Device
- GPU, VRM, 3D Printer
- Weight
- 3.76 ounces
View on Amazon: Awxlumv 40x40x20mm Aluminum Heatsink Affiliate link
This is a 40x40x20mm aluminum heatsink designed for cooling components like GPUs, VRMs, and 3D printer motors. It features a black anodized finish and includes pre-applied thermal conductive adhesive tape for straightforward installation. The 20mm height provides more surface area than the thin alternatives often seen in this category. It is a practical option for enclosed spaces or overclocked environments where efficient heat dissipation is required.
Pros
- 20mm height offers greater surface area than thinner 5mm or 10mm alternatives
- Pre-applied thermal conductive adhesive tape simplifies installation
- Black anodized aluminum alloy construction for effective heat dissipation
- Compatible with GPUs, VRMs, and NEMA 17 motors
Cons
- 20mm height may not fit in extremely tight clearance spaces
- Adhesive backing limits repositioning once attached
- Only includes four units per package
Good fit if
- You need to cool a GPU backplate or VRM
- You are installing heatsinks on 3D printer motors
- You require a thicker heatsink for better dissipation
Skip if
- You need a heatsink under 10mm in height
- You prefer screw-mounting over adhesive attachment
- You require a larger 80mm or 100mm footprint
Verdict: Awxlumv 40x40x20mm Aluminum Heatsink fits users who need reliable cooling for GPUs or VRMs in moderately constrained spaces. The included adhesive tape and 20mm profile make it a solid upgrade over thinner options.
Awxlumv 60x40x11mm Aluminum Heatsinks (2-Pack)
Best for: passive cooling of VRMs and LEDs
- Material
- Black anodized aluminum
- Cooling Method
- Passive
- Compatible Device
- VRM, CPU, LED, stepper motors
- Dimensions
- 60 x 40 x 11 mm
- Mounting Type
- Pre-coated thermal tape backing
- Weight
- 1.84 ounces
View on Amazon: Awxlumv 60x40x11mm Aluminum Heatsinks (2-Pack) Affiliate link
This Awxlumv heatsink uses black anodized aluminum to passively cool components like VRMs, CPUs, and stepper motors. The 60 x 40 x 11 mm block features a pre-coated thermal conductive adhesive tape for direct mounting. It includes two units per package. The design maximizes surface area for air contact. It suits users needing passive cooling for electronics without active fans.
Pros
- Black anodized aluminum material for durability
- Pre-coated thermal conductive adhesive tape
- Dimensions of 60 x 40 x 11 mm
- Includes two heatsinks per package
Cons
- Passive cooling only, no fan included
- Fixed adhesive mounting, no screw holes
- Limited to lower power components
Good fit if
- You need passive cooling for VRMs or LEDs
- You want a simple adhesive mount solution
- You require two identical heatsinks
Skip if
- You need active cooling with a fan
- You require screw-mounting hardware
- You are cooling a high-TDP CPU
Verdict: Awxlumv 60x40x11mm Black Aluminum Heatsink fits users who need passive cooling for low-power electronics like stepper motors or VRMs using a simple adhesive mount.
Awxlumv 100x45x5mm Thin Aluminum Heatsink
Best for: Low-power passive cooling in tight spaces
- Material
- Aluminum
- Cooling Method
- Passive
- Dimensions
- 100 x 45 x 5mm
- Mounting Type
- Pre-coated thermal tape
- Color
- Black
- Weight
- 3.2 ounces
View on Amazon: Awxlumv 100x45x5mm Thin Aluminum Heatsink Affiliate link
This is a pair of black anodized aluminum heat sinks measuring 100 by 45 by 5 mm. They use pre-coated thermal conductive adhesive tape for mounting. The thin 5 mm profile makes them suitable for passive cooling in tight spaces. You can use them for LEDs, FPV transmitters, or small electronics. Each unit weighs 44 grams.
Pros
- Includes 2 black anodized aluminum heat sinks
- Pre-coated thermal conductive adhesive tape for easy mounting
- Thin 5 mm height fits in tight spaces
- Maximizes surface area for passive cooling
Cons
- 5 mm height limits heat dissipation for high-power components
- Adhesive tape only; no screw mounting holes included
- Passive cooling only; no fan included
Good fit if
- You need to cool low-power components like LEDs or FPV transmitters
- You have very limited vertical clearance for cooling parts
- You want a simple adhesive mount without drilling
Skip if
- You need to cool a high-TDP CPU or GPU
- You require screw-mounting for better thermal contact
- You need active cooling with a fan
Verdict: Awxlumv 100x45x5mm Thin Heatsink is a practical passive cooling solution for low-power electronics in tight spaces. It fits you if you are cooling LEDs or FPV gear and need a simple adhesive mount.
Easycargo 20-Piece Copper and Aluminum Heatsink Kit
Best for: Raspberry Pi 5, 4, and 3 cooling kits
- Material
- Aluminum + Copper
- Compatible Device
- Raspberry Pi 5 4 3 boards
- Mounting Type
- Pre-applied adhesive tape backing
- Features
- Thermal Tape
- Dimensions
- 0.55 × 0.55 × 0.28 inches
- Weight
- 0.64 ounces
View on Amazon: Easycargo 20-Piece Copper and Aluminum Heatsink Kit Affiliate link
This kit provides 20 heatsinks for Raspberry Pi 5, 4, and 3 boards. It includes 15 aluminum and 5 copper pads. Each unit has pre-applied thermal adhesive tape. The aluminum fins measure 0.55 by 0.55 by 0.28 inches. The copper shims are 0.55 inches wide. You get a mix of materials to target different heat sources on the board.
Pros
- Includes 15 aluminum and 5 copper heatsinks
- Pre-applied thermal conductive adhesive tape
- Compatible with Raspberry Pi 5, 4, and 3
- Copper pads target high-heat components
Cons
- Adhesive backing limits repositioning after application
- Small fin height reduces surface area
- No mounting screws or brackets included
Good fit if
- You need a complete kit for multiple Raspberry Pi boards
- You want to use copper for critical chips like the SoC
- You prefer a simple peel-and-stick installation method
Skip if
- You require adjustable or screw-mounted cooling solutions
- You need heatsinks for larger desktop CPUs
- You want to reuse the same heatsinks on different devices
Verdict: Easycargo Raspberry Pi Heatsink Kit 20pcs offers a practical mix of aluminum and copper pads with adhesive backing. It fits users who need a ready-to-use solution for Raspberry Pi 5, 4, or 3 boards without complex mounting hardware.
Specifications side by side
| Spec | SGTKJSJS 5.9 x 2.91 Black Aluminum Heatsink | Awxlumv 35x35x10mm Black Aluminum Heatsink | ZZHXSM 80mm Black Aluminum Heatsink 2-Pack | Awxlumv 40x40x20mm Aluminum Heatsink | Awxlumv 60x40x11mm Aluminum Heatsinks (2-Pack) | Awxlumv 100x45x5mm Thin Aluminum Heatsink | Easycargo 20-Piece Copper and Aluminum Heatsink Kit |
|---|---|---|---|---|---|---|---|
| Material | Aluminum | anodized aluminum | Black anodized aluminum | Aluminum alloy | Black anodized aluminum | Aluminum | Aluminum + Copper |
| Cooling Method | not stated | not stated | Passive | not stated | Passive | Passive | not stated |
| Compatible Device | not stated | not stated | 3D printers, LEDs, FPV transmitters | not stated | VRM, CPU, LED, stepper motors | not stated | Raspberry Pi 5 4 3 boards |
| Dimensions | 5.9 x 2.91 x 0.39 inch | 35mm x 35mm x 10mm | 80 x 40 x 11mm | 1.57 x 1.57 x 0.79 inches | 60 x 40 x 11 mm | 100 x 45 x 5mm | not stated |
| Mounting Type | Thermal Conductive Adhesive Tape | Pre-applied thermal conductive tape | Thermal conductive adhesive tape | Thermal Conductive Adhesive Tape | Pre-coated thermal tape backing | Pre-coated thermal tape | Pre-applied adhesive tape backing |
| Color | Black | Black | Black | Black | Black | Black | Multicolored (20pcs) |
| Features | Thermal Tape | Thermal Tape | Thermal Tape | Thermal Tape | Thermal Tape | Thermal Tape | Thermal Tape |
| Weight | 10.7 ounces | 0.35 ounces | 1.26 ounces | 3.76 ounces | 1.84 ounces | 3.2 ounces | 0.64 ounces |
| Model | 2DSRP-1571 | 35x35x10 mm | AHEATS-80x40x11-2 | 40x40x20 mm | 60x40x11mm | 100 x 45 x 5mm Heatsink | not stated |
Frequently asked questions
Which heatsink is best for passive cooling of power transistors?
The SGTKJSJS 5.9 x 2.91 Black Aluminum Heatsink is designed for this purpose. It features a 5.9-inch length and 2.91-inch width to maximize surface area. The 0.39-inch height keeps the profile low. It includes thermal tape for secure mounting on voltage regulators or transistors.
What is the smallest option for cooling small ICs?
The Awxlumv 35x35x10mm Black Aluminum Heatsink is the most compact choice. It measures 1.38 inches square with a 0.39-inch height. This small footprint makes it ideal for tight spaces around power regulators or LED drivers. It uses adhesive backing for quick installation on small components.
Are there heatsinks suitable for GPU and VRM cooling?
Yes, the Awxlumv 40x40x20mm Aluminum Heatsink fits this need. It has a 1.57-inch square base and a 0.79-inch height. The taller profile provides more surface area for GPUs or VRMs. It includes thermal tape and is compatible with 3D printers and other electronics in moderately constrained spaces.
Is there a kit for Raspberry Pi cooling?
The Easycargo 20-Piece Copper and Aluminum Heatsink Kit is a practical solution. It includes pads made of both copper and aluminum with adhesive backing. The pieces measure 0.55 inches square with a 0.28-inch height. It is designed for Raspberry Pi 5, 4, or 3 boards without complex mounting.
Which heatsink is best for LED passive cooling?
The ZZHXSM 80mm Black Aluminum Heatsink 2-Pack is suitable for LEDs. It measures 3.15 inches long with a 1.57-inch width and 0.44-inch height. The compact size fits projects where space is tight. It uses thermal tape for mounting and provides passive cooling for LEDs or FPV transmitters.
What is the thinnest heatsink available for tight spaces?
The Awxlumv 100x45x5mm Thin Aluminum Heatsink is the thinnest option. It has a 0.20-inch height, making it ideal for low-power electronics in confined areas. It measures 3.94 inches long and 1.77 inches wide. It uses adhesive mounting for simple installation on LEDs or FPV gear.
Which heatsink is best for VRM and LED cooling?
The Awxlumv 60x40x11mm Aluminum Heatsinks (2-Pack) work well for VRMs and LEDs. Each unit measures 3.15 inches long with a 1.57-inch width and 0.43-inch height. The black aluminum construction aids passive cooling. It includes thermal tape for easy attachment to stepper motors or voltage regulators.