TIR300G Thermal Graphite Sheet
- Density (g/cm³)
- 1.4
- Hardness (Shore A)
- 85
- Thermal Conductivity (W/m·K)
- 2.0
- Thickness (mm)
- 0.005~0.15 mm
- Volume Resistivity (Ω·cm)
- 10²
- 180° Peel Strength
- 1.0 N/25 mm
TIR300G — Product overview
TIR®300G-A1 series is a composite thermal pad with added graphite, which has excellent thermal conductivity to effectively solve the common problem of thermal interfaces. This material uses a fiberglass-reinforced structure to ensure that it does not lose structural integrity during application. It is easy to apply to different surfaces and is convenient to install. It is commonly used between transistors and heat sinks, and between large assembly parts for thermal interface management.
TIR300G — Features
Excellent thermal impedance
Replaces traditional thermal grease
High reliability
Easy to apply to surfaces
Where this grade is used
Typical application targets for this grade include Between transistors and heat sinks, Between mechanical structures, Between heat sinks and external casings.
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.
TIR300G — datasheet specifications
Values below are transcribed from the official datasheet (PDF: TIR300G-TDS-EN.pdf). Use the linked PDF for sign-off and lot-specific CoA.
Request application engineering support| Parameter | Value (typical / as stated) | Method / note |
|---|---|---|
| Product Name | TIR304G-A1 / TIR305G-A1 | — |
| Color | Black | Visual |
| Reinforcement Carrier | Fiberglass | — |
| Thickness (mm) | 0.13 / 0.005 / 0.15 / 0.006 | ASTM D374 |
| Density (g/cm³) | 1.4 | ASTM D297 |
| Hardness (Shore A) | 85 | ASTM D2240 |
| Volume Resistivity (Ω·cm) | 10² | ASTM D257 |
| Continuous Use Temp (°C) | -60~180 | — |
| Thermal Conductivity (W/m·K) | 2.0 | ASTM D5470 |
| Thermal Impedance (°C·in²/W) @30 psi | 0.66 / 0.68 | ASTM D5470 |
| Thermal Impedance (°C·in²/W) @50 psi | 0.34 / 0.36 | ASTM D5470 |
| 180° Peel Strength | 1.0 N/25 mm | ASTM D3330 |
* Match values to the PDF revision cited on your purchase order.
Related graphite sheets for thermal management models
| Model | Thickness | X-Y Conductivity | View |
|---|---|---|---|
| TIR300 | 0.012~0.040 mm | 1200~1700 W/m·K | Details |
| TIR300AL | 0.050~0.080 mm | 450 W/m·K | Details |
| TIR300C | 0.040~0.080 mm | 700 W/m·K | Details |
| TIR300CU | 0.060~0.080 mm | 320 W/m·K | Details |
| TIR300L-A1 | 0.15 mm | 2.5 | Details |
| TIR600 | 0.127~0.508 mm | 240 W/m·K | Details |
| TS-TIR700-09 | 1.0~5.0 mm | 9.0 | Details |
| TS-TIR700-25 | 0.3~5.0 mm | 25 | Details |
TIR300G — common questions
Replacing another vendor’s TIM or need a stack review? Send drawings — applications responds quickly.
Talk to an engineerWhat is the nominal thermal conductivity of TIR300G?
The customer workbook lists nominal through-plane conductivity as — W/m·K. What you measure depends on pressure, gap, and fixture — use the technical documentation as the reference.
Can Ziitek supply TIR300G die-cut or in custom thickness?
Yes — send DXF/DWG outlines and stack height. Graphite sheets for thermal management parts are routinely converted at Ziitek; tolerances depend on thickness and geometry.
Where is the documentation for TIR300G?
Download the technical documentation from this page when available. If your revision differs, name the file from your RFQ so applications engineering matches it.
Is TIR300G RoHS-aligned?
Ziitek targets RoHS-oriented formulations across TIM lines. Cite the compliance block for audits and tell us if you need additional regional substance lists.
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