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3M Thermally Conductive Acrylic Interface Pad 5590H vs Honeywell PTM7950: Comparison
3M Thermally Conductive Acrylic Interface Pad 5590H and Honeywell PTM7950 separate most on thermal conductivity: 3M Thermally Conductive Acrylic Interface Pad 5590H at 3 W/mK, Honeywell PTM7950 at 8.5 W/mK, 65% in favour of Honeywell PTM7950. They match on electrical conductivity and paste segment.
Specs
| Specification |  |  |
|---|---|---|
| Compound Type | Acrylic-Based Pad (non-silicone thermally conductive acrylic polymer) | Phase-Change Pad |
| Brand | 3M | Honeywell |
| Model | 5590H | Honeywell PTM7950 , PTM7950 |
| Thermal Conductivity | 3 W/mK-65% | 8.5 W/mK |
| Electrical Conductivity | Insulating | Insulating |
| Package Size | Die-cut shapes and rolls (e.g. 25.4 x 25.4 x 0.5mm squares, sold in packs) | Sheet/pad cut to size (sold by area, not weight) |
| Recommended Use | Mainstream CPU/GPU and general electronics gap filling | Laptop-Thin-GPU (and builds needing reapplication-free long-term use) |
| Reapplication Interval | No reapplication needed; self-adhesive one-time application | Rated for repeated thermal cycles without reapplication (~2+ years) |
| Safety Notes | Non-conductive acrylic pad; no special handling precautions required | Solid at room temperature; softens at operating temperature; different application method than paste |
| Paste Segment | Pad | Pad |
Price comparison
| Retailer | 3M Thermally Conductive Acrylic Interface Pad 5590H | Honeywell PTM7950 |
|---|---|---|
| Amazon | View on Amazon | |
| Newark | View on Newark |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
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