Two high-Dk laminates that look alike on a datasheet but split on loss, heat resistance and cost — here is where each one earns its place.
Rogers RT/duroid 3210 and RT/duroid 3010 are both high-performance materials for high-frequency and microwave hardware, and both are known for strong electrical performance and thermal stability. They are not interchangeable. The gap shows up in loss, in how they behave when things get hot, and in what they cost. This comparison covers characteristics, application fit and trade-offs so the choice can be made on requirements rather than on habit.
Both sit in a broader family of ceramic-filled high-frequency composites — the Rogers 3000 series covers the neighbouring grades, and the rolled-copper RO3000 laminates matter when conductor loss enters the picture. For the wider rule of how composition drives application fit, see our notes on material composition and application divergence.
Dielectric constant and loss tangent are where the two materials first separate.
| Parameter | RT/duroid 3210 | RT/duroid 3010 |
|---|---|---|
| Dielectric constant (Dk) | ~10.2 | 9.2 |
| Dissipation factor (Df) | ~0.0025 | ~0.0032 |
| Thermal weight loss temperature | up to 300°C | ~280°C |
| Coefficient of thermal expansion | Low | Relatively higher |
| Mechanical strength | Excellent tensile and compressive strength | High, but less forgiving at the extremes |
| Machinability | Laser cutting and precision machining, very stable | Laser cutting and precision machining |
| Cost | Higher | Lower |
Heat is the second dividing line, and it is often the one that settles the part.
Both materials are workable, but not identically so.
The differences above translate into fairly clear application preferences. For the surrounding selection landscape, our guide to high-frequency laminate selection is a useful companion.
3210 and 3010 are not competing versions of the same part — they serve different requirement levels. Where high frequency and high power meet harsh conditions, 3210’s electrical performance and thermal stability justify the price. Where performance requirements are moderate and budget is the constraint, 3010 is the sensible pick. Work from the application requirements, the performance targets and the budget, and the choice usually makes itself. If the design leans toward compact high-Dk geometry with a more forgiving process route, RO3210 is worth adding to the same shortlist.
Frequently Asked Questions
3210 is about 10.2 and 3010 is about 9.2. Both are high-Dk materials; the higher value of 3210 supports more compact circuit geometry.
3210, at roughly 0.0025 versus about 0.0032 for 3010. The difference becomes more meaningful as operating frequency rises.
Where the design runs at high frequency, at high power, or in harsh conditions, yes. In low-frequency or moderate-performance work its advantages go largely unused.
Both support laser cutting and precision machining. 3210 tends to hold its performance more consistently during machining.
3210, with a thermal weight loss temperature up to 300°C against roughly 280°C for 3010, plus a lower coefficient of thermal expansion.
Send us your frequency range and thermal requirements and we will recommend the grade that fits.
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