TIR700-35 Thermal Graphite Sheet
- Hardness （Shore oo）
- 65 ±10
- Density (g/cm³）
- 2.8
- Thickness Range (inch/mm)
- 0.012"~0.200" / 0.30~5.00mm
- Thermal Conductivity (W/m·K)
- 35.0
TIR®700-35 Series Carbon Fiber Thermal Pad
TIR®700-35 Series is a high-efficiency carbon fiber thermal pad that combines high thermal conductivity carbon fiber with polymer silicone material. Using advanced technology, the carbon fibers are vertically aligned to achieve excellent heat transfer performance, effectively reducing interface thermal resistance and improving cooling efficiency. It features ultra-thin, lightweight design and mechanical flexibility, making it suitable for applications that require high heat dissipation while demanding good mechanical strength of the material.
TIR700-35 — what to validate in production
High thermal conductivity
Excellent mechanical properties
Outstanding weather stability
Safe and reliable
TIR®700-35 Carbon Fiber Thermal Pad | 35 W/m·K High Conductivity Gap Pad
TIR®700-35 is a high-efficiency carbon fiber thermal pad with 35 W/m·K conductivity,Ideal for laptop CPUs, power battery packs, automotive and aerospace electronics.
Servers · GPU · accelerators · DIMM
Data Center & AI Servers
High-flux silicon and dense PCBs — CPU/GPU bond-lines, VRM/DIMM/NIC interfaces, and accelerator cold-plate paths. Match grade against clamp force, TIM impedance, and rework cadence.
Drives · IGBT · controllers · sensors
Power Tools & Control Systems
Industrial controls, motor drives, power-stage IGBTs, and rugged modules — thermal interfaces, sealing, and encapsulation built for serviceable assemblies and harsh environments.
TIR700-35 — datasheet specifications
Values below are transcribed from the official datasheet. Use the linked PDF for sign-off and lot-specific CoA.
Request application engineering support| Parameter | Value (typical / as stated) | Method / note |
|---|---|---|
| Color | Gray | Visual |
| Composition | Carbon fiber filled filicone fubber | ZKTM J024 |
| Thickness Range (inch/mm) | 0.012~0.200" /0.30~5.00mm | ASTM D374 |
| Hardness (Shore OO) | 65±10 | ASTM D2240 |
| Density (g/cm³ ) | 2.8 | ASTM D792 |
| Recommended Operating Temperature (°C) | -40～200 | ZKTM J025 |
| Thermal Conductivity (W/m·K) | 35.0 | ASTM D5470 |
| Specific Heat Capacity (J/g·°C) @25℃ | 0.77 | ASTM E1269 |
| Flame Rating | V-0 | Equivalent to UL94 |
* Match values to the PDF revision cited on your purchase order.
Related graphite sheets for thermal management models
TIR700-35 — common questions
Replacing another vendor's TIM or need a stack review? Send drawings — applications responds quickly.
Talk to an engineerWhat is a carbon fiber thermal pad?
A carbon fiber thermal pad is a thermal interface material (TIM) in which high-conductivity carbon fibers are vertically embedded in a silicone matrix. Unlike conventional silicone-based gap pads, the aligned fibers channel heat directly through the thickness, delivering much higher through-plane conductivity (up to 35 W/m·K here) at lower bond lines.
Is TIR® 700-35 electrically insulating?
No. This product is **electrically conductive**. The carbon fibers make it thermally super-conductive but also electrically conductive, so it must not be placed between points that require electrical isolation. If your design needs both thermal and electrical insulation, ask us about our silicone/ceramic insulating TIM series instead.
What is the difference between a carbon fiber pad and a standard silicone thermal pad?
Standard silicone gap pads usually reach 1–16 W/m·K and are electrically insulating. Carbon fiber pads reach far higher conductivity (35 W/m·K) at thinner bond lines, but are conductive and generally denser (2.8 g/cm³) and stiffer. Choose carbon fiber when maximum heat extraction at a thin gap is the priority and no isolation is needed.
What thicknesses are available?
Standard thickness ranges from 0.30 mm (0.012") to 5.00 mm (0.200"), in the standard sheet size of 5" × 6" (127 × 152.4 mm). Custom thicknesses, die-cut shapes and forms are available on request.
Your next thermal solution starts here.
From rapid prototyping to full-scale production — our engineers are ready to design a custom thermal solution for your application. Trusted by 7,000+ clients across EV, 5G, and consumer electronics.