PA-T2X-38E
Heat Sink, 7.46 °C/W, TO-220, TO-247, TO-264, 30 mm, 38.1 mm, 28.9 mm
- Manufacturer: OHMITE
- Product type: Natural Convection Heat Sinks
- SVHC: No SVHC (27-Jun-2024)
- Product Range: P Series
- Packages Cooled: TO-220, TO-247, TO-264
- Heat Sink Material: Aluminium Alloy
- Thermal Resistance: 0
- External Width - Metric: 30mm
- External Height - Metric: 38.1mm
- External Length - Metric: 0
- External Width - Imperial: 1.18"
- External Diameter - Metric: -
- External Height - Imperial: 1.5"
- External Length - Imperial: 0
- External Diameter - Imperial: -
| Delivery and price | |
|---|---|
| Units per pack | 250 |
| Price | 3.19 € |
| Current stock | 10+ |
| Lead time | 30 days |
## **P Series Heatsinks Forged Pin Fin heatsink for TO-247 and TO-264 devices** Ohmite introduces the P series forged pin-fin heatsink (Pat. Pending). The P series heat sinks offer an all-in-one solution combining a compact design with a universal cam clip system for TO-220, TO-247, TO-264 package devices. TO-220 devices can be attached using non-standard cam clips (contact Ohmite for details). This powerful forged pin heatsink is designed to be thru-hole soldered to the PCB board. The forged pin design allows forced convection cooling in multiple directions. The pin fin design allows for a larger surface area creating minimum thermal flow impedance. The P series is the ideal type of heat sink for high power and small size (1U or 2U) electronic packaging with natural and forced convection cooling. |~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~|~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~|~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~|~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~|~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~|~~**S e r i e S S P e c i F i c at i O N S**~~<br>~~ee~~| |---|---|---|---|---|---| |||**Surface**|||| |**Heatsink**||**Area**|**Weight**|**Width**|**Rθc-a***| |**Part Number**|**Configuration**|**(in2 /mm2)**|**(oz./g)**|**(in /mm)**|**(°C/W)**| |PA-T2X-38E|Single, 1 clip|13.4 / 8,675|0.7 / 20|1.18 / 30|7.46| |PV-T2X-38E|Single,1 clip|13.4 / 8,675|0.7 / 20|1.18 / 30|8.07| |PA-T21-38E|Dual, 1 clip|23 / 14,823|1.3 / 39|2.17 / 55|3.13| |PV-T21-38E|Dual,1 clip|23 / 14,823|1.3 / 39|2.17 / 55|3.89| |PA-T22-38E|Dual, 2 clip|23 / 14,823|1.3 / 39|2.17 / 55|3.13| |PV-T22-38E|Dual,2 clip|23 / 14,823|1.3 / 39|2.17 / 55|3.89| *--Thermal Resistance is in open space @14 W power dissipation (28 watts for T21-T22 dual) ## ~~ee~~ ~~**c H a r a c t e r i S t i c S**~~ **Heat sink** AL1070 **Spring clip** Music Wire, Per ASTM A228 with bright nickel plating **Solder feet** Brass with pure tin or nickel. RoHS compliant **Interface** For improvement, use thermal joint compound, **thermal** 0.005 Grafoil (TGon 800 by Laird), or phase **resistance** change material (Hi-Flow by Bergquist) **Insulator** Sil-Pad 900-S, K6 800-S and K10 by Bergquist **Thermal Performance** **==> picture [260 x 117] intentionally omitted <==** **----- Start of picture text -----**<br> 120 120<br>100 100<br>Single: T2X Double: T21-T22<br>80 80<br>60 60<br>40 40<br>20 20<br>0 0<br>0 6 8 10 12 16 0 12 16 20 24 28<br>Heat Dissipated (watts) Heat Dissipated (watts)<br>C)above Ambient ( ° C)above Ambient ( °<br>Average Case Temp. Rise Average Case Temp. Rise<br>**----- End of picture text -----**<br> **172** 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com ## **P Series Heatsinks Forged Pin Fin heatsink for TO-247 and TO-264 devices** ## ~~**d i m e N S i O N S**~~ **==> picture [485 x 325] intentionally omitted <==** **----- Start of picture text -----**<br> Dual: T21 and T22 Single:<br>2.17" Single: T2X 0.45" REF<br>(55.1mm) (11.4mm)<br>1.18" Dual: 0.69"<br>1.11 " (30.0mm) 0.55" REF (17.5mm)<br>(28.2mm) (14.0mm)<br>1.52" 1.50" 1.40"<br>(38.6mm) (38.1mm) (35.6mm)<br>0.65<br>(16.5mm)<br>0.10" REF<br>1.62" (2.5mm) Single: Dual:<br>(41.1mm) 0.122" 0.125"<br>(3.1mm) (3.2mm)<br>Single: Dual:<br>Land 1.18" 2.17"<br>Pattern (30.0mm) (55.1mm)<br>Note: For dual<br>heat sink, Device ø0.105" pth<br>(2.67mm)<br>holes spaced 1.11" [28.2mm] 0.69"<br>and 0.555" (17.5mm)<br>[14.1mm] equally<br>from center line 0.12"<br>(3.0mm)<br>Single: Dual:<br>0.71" 1.62"<br>(18.0mm) (41.1mm)<br>**----- End of picture text -----**<br> ## ~~**O r d e r i N g i N F O r m at i O N**~~ TO- devices **Package Packagevariation Standard Part Numbers Part number Configuration P A - T 2 X - 3 8 E** PA-T2X-38E Single, Anodized, 1 clip PV-T2X-38E Single, Degreased 1 clip **Series Finish Height RoHS** P A = anodized (mm) **Compliant** PA-T21-38E Dual, Anodized 1 clip V = degreased PV-T21-38E Dual, Degreased 1 clip PA-T22-38E Dual, Anodized 2 clips PV-T22-38E Dual, Degreased 2 clips **==> picture [146 x 41] intentionally omitted <==** rev 3/21-1 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com **173**
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.
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