Sil-Pad 1500ST Pad
At NEDC, we die-cut a lot of different products. One of the more common materials that we die-cut are thin thermal pads. For applications that require self-tackiness and a thin cross-sectioned thermal transfer pad, finding a solution may be challenging. A unique thermal pad that offers a strong diversity of performance characteristics is Sil-Pad 1500ST thermal pad from Henkel’s Bergquist.
Properties of Sil-Pad 1500ST aka TSP 1800ST
Most thermal pads require a reinforcement for handling. Sil-Pad 1500STs reinforcement is a durable fiberglass. It features a natural tack on both sides(the ST stands for soft-tack) to aid in assemble, and placement of the pad. In addition, tackiness rather than a pressure-sensitive adhesive allows for better thermal conductivity that heavy PSAs might impede. In fact, with a thermal insulator this thin, the thermal properties of an additional soft-tack can provide incredible gains for thermal properties. As with most thermal pads available from Henkel’s Bergquist, it offers the prestigious fire rating of UL 94 V0. The temperature range of this thermal pad is a wide range of -76° to 356° F. The thermal conductivity of this pad is 1.8 w/m-K. More importantly, its thermal impedance features a low 0.2°C-in2 /W at 200 psi of pressure. My suggestion with this pad is to ignore the 1.8 W/m-K. The reason I say this, this pad actually provides better performance than some pads that have double its thermal conductivity. As with most thermal pads, Sil-Pad 1500ST offers great electrical isolation. With the combination of the thermal conductivity, and high conformability it makes this thermal pad especially versatile. This combination of properties makes it especially useful for certain applications. Some common applications for this thermal pad include power supplies, motor controls, or automotive electronics.
Why Sil-Pad 1500ST over other Thermal Insulators?
NEDC would suggest to test Sil-Pad 1500ST(SIL PAD TSP 1800ST) over other thermal insulators because this pad provides incredible thermal properties with little pressure (10psi) to 200 psi. The reason for this is a few:
A. It is such a thin cross section at a reasonable durometer of 75 Shore 00.
2. The soft tack that is not normal for such a thin thermal interface pad.
How can I attach Sil-Pad 1500ST into my assembly?
I’d suggest starting with screws, or clips just like any thermal insulator. However, smaller screws may suffice to provide proper pressure since this pad can provide performance that is exceptional despite its “lower” thermal conductivity.
transitor, to-247, electronic circuit
transitor, to-247, electronic circuit
Availability/Nomenclature for Sil-Pad 1500ST aka SIL PAD TSP 1800ST
Sil-Pad 1500ST is also known as SIL PAD TSP 1800ST. This thermal pad has a distinct blue color.
Some ways you may see Sil-Pad 1500ST:
SP1500ST-0.008-02-1212
SP1500ST-0.008-02-12/50
SP1500St-0.008-02-XX (indicating a die-cut configuration)
This thermal pad is available in sheets form, or roll form in .008’’ or 0.203 mm in thickness. NEDC commonly die-cuts, and waterjet cuts this pad. For more information on this thermal pad, or you have an application that you think could utilize this pad, please contact sales@nedc.com.