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| Part Number | HS21 |
| Datasheet | HS21 datasheet |
| Description | HEATSINK 6P DIP |
| Manufacturer | Apex Microtechnology |
| Series | Apex Precision Power® |
| Part Status | Active |
| Type | Board Level |
| Package Cooled | 6-DIP |
| Attachment Method | Bolt On |
| Shape | Square, Pin Fins |
| Length | 2.500" (63.50mm) |
| Width | 2.500" (63.50mm) |
| Diameter | - |
| Height Off Base (Height of Fin) | 0.900" (22.86mm) |
| Power Dissipation @ Temperature Rise | 3.0W @ 20°C |
| Thermal Resistance @ Forced Air Flow | 30.00°C/W @ 500 LFM |
| Thermal Resistance @ Natural | 5.60°C/W |
| Material | Aluminum |
| Material Finish | Black Anodized |