VXV-55-101E
Heat Sink, 209 W/m.K, SOT-227, 48.7 mm, 30 mm, 55 mm
- Manufacturer: OHMITE
- Product type: Natural Convection Heat Sinks
- SVHC: No SVHC (15-Jan-2018)
- Product Range: VX Series
- Packages Cooled: SOT-227
- Heat Sink Material: Aluminium
- Thermal Resistance: 209W/m.K
- External Width - Metric: 48.7mm
- External Height - Metric: 30mm
- External Length - Metric: 55mm
- External Width - Imperial: 1.92"
- External Diameter - Metric: -
- External Height - Imperial: 1.18"
- External Length - Imperial: 2.17"
- External Diameter - Imperial: -
| Delivery and price | |
|---|---|
| Units per pack | 1120 |
| Price | 2.23 € |
| Current stock | 10+ |
| Lead time | 30 days |
## **VX Series** ## **Heat Sinks For TGHE Series and SOT-227 Devices** Ohmite introduces the VX series heat sinks for the Ohmite TGHE series and SOT-227 devices. This powerful heat sink has a unique profile that allows thru-hole soldering onto PCBs, panel mounting, or chassis mounting with fasteners. The VX series is an ideal heat sink that is designed for large power yet provides a light weight package and works with forced convection cooling. ## ~~ee~~ ~~**S e r i e S S P e c i F i c at i O N S**~~ ~~**S e r i e S S P e c i F i c at i O N S**~~ **Heatsink Compatible Surface Area Weight Length L Spacing S Part Number parts/devices (in[2] / mm[2] ) (oz / g) (in. / mm) (in. / mm) Thread** VXA-35-101E TGHE 38 / 24,638 1.4 / 39 1.38 / 35 1.10 / 28 M3 VXV-35-101E* VXA-55-101E SOT-227 60 / 38,717 2.2 / 62 2.17 / 55 1.18 / 30 M3.5 VXV-55-101E* * Note: Anodized parts are standard; degreased available on request. ## ~~e~~ ~~**c h a r a c t e r i S t i c S** e~~ **Fastener** M3.5 Screw **Thermal Interface Material** Use as needed. Ohmite TGH-TP1 for SOT-227 devices **Material** AL 6063-T5 **Surface Finish** Black anodized or degreased **Thermal Conductivity** 209 W/m-K **PCB Mounting Examples** ## **Thermal Performance** **==> picture [252 x 244] intentionally omitted <==** **----- Start of picture text -----**<br> 1.6 • Power dissipation is 100W,<br>single device<br>1.4<br>• Heat load area 17 x 28mm<br>1.2 L = 35mm metal tab<br>• Ducted air flow<br>1.0<br>0.8<br>L = 55mm<br>0.6<br>0.4<br>0.2<br>0<br>0 100 200 300 400 500 600 700 800<br>Air Velocity (ft./min.)<br>47°C<br>Max. case temp. on SOT-<br>227 (hot spot) is 69°C @<br>5.08m/s (1000 fpm) ducted<br>air flow.<br>58°C<br>63°C<br>69°C<br>a<br>C/watts) °<br>Thermal Resistance from Case to Ambient (<br>**----- End of picture text -----**<br> With Ohmite TGHE resistor Heat sink assembly with a resistor and thermal interface material fastened with two M3.5 screws. ## ~~ee~~ ~~**d i m e N S i O N S**~~ **==> picture [252 x 106] intentionally omitted <==** **----- Start of picture text -----**<br> (mm)<br>48.7 Land Pattern<br>30.0 Spacing S Length L<br>36.5 3.0 CL<br>40.0<br>**----- End of picture text -----**<br> ~~**h O w t O O r d e r**~~ **V X V - 5 5 - 1 0 1 E** ~~a ee~~ **Series Finish Extrusion Modifier RoHS** VX A = anodized Lengh in mm **Compliant** V = degreased rev 10/20-1 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com **169**
Updated at April 29, 2026
With nearly a century of engineering expertise, Ohmite is a premier manufacturer of high-performance resistive and thermal management products. Founded in 1925, the company has continuously evolved alongside the electronics industry, building a reputation for resolving complex design challenges. Ohmite specializes in delivering reliable solutions for high-current, high-voltage, and high-energy applications across the industrial, medical, aerospace, and transportation sectors. The core of our Ohmite offering centers on their advanced cooling and thermal management solutions, particularly natural convection heat sinks. Engineered to efficiently dissipate thermal energy in demanding environments, these heat sinks help designers overcome critical thermal bottlenecks. By effectively managing heat dissipation, Ohmite's thermal products ensure the optimal performance and extended longevity of sensitive electronic assemblies. Complementing their thermal management expertise, our selection includes precision sensing and circuit protection components. Ohmite's robust force sensors and load cells provide dependable measurement capabilities for specialized industrial applications, while their temperature sensing and compensation NTC thermistors offer accurate environmental monitoring. These product lines reflect Ohmite’s enduring commitment to quality, innovation, and specialized component engineering.
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →