Electronics Coolant PFPE Fluid JHT Series

The Core Purpose: Heat Transfer

 

Electronic components (CPUs, GPUs, power transistors, batteries, etc.) generate waste heat. Too much heat reduces efficiency, degrades performance, causes throttling, and can lead to permanent failure. Coolant's job is to absorb this heat and transport it away from the components to a location where it can be dissipated (usually via a radiator).

 

Perfluoropolyether (abbreviated as PFPE), our JHT series PFPE fluid are perfluoropolyether cooling fluid with exceptional thermal and chemical properties, making them ideal for liquid cooling applications.

They fall into two main categories, defined by their dielectric properties (ability to resist electrical conductivity):

1. Dielectric (Non-Conductive) Coolants

These are electrically insulating fluids. They can be placed in direct contact with live electronic components without causing a short circuit.

Primary Use: Direct-to-Chip Cooling or Immersion Cooling.

Common Types:

 Mineral Oils & Synthetic Hydrocarbons: Often used in hobbyist PC liquid cooling and some industrial applications.

 Fluorocarbons (e.g., 3M Novec, Fluorinert): Engineered fluids with excellent dielectric strength, thermal properties, and chemical inertness. They are used in high-performance computing (HPC), data centers, and military/aerospace applications.

 Silicone Oils: Used for their stability over a wide temperature range.

 Vegetable Esters (Bio-Oils): A more eco-friendly, biodegradable option gaining traction in data centers.

 Perfluoropolyether (PFPE Fluid): A high performance dielectric heat transfer fluids for AI server.

2. Conductive Coolants

These are typically water-based and are excellent heat transporters. Because they conduct electricity, they must be kept physically isolated from the electronics.

Primary Use: Indirect Cooling via cold plates or heat exchangers.

Common Types:

 Deionized Water: The gold standard for thermal performance. It's pure H₂O with ions removed, making it initially non-conductive, but it can become conductive over time as it absorbs impurities.

 Water-Glycol Mixtures: A mix of water and ethylene or propylene glycol (like car antifreeze). Glycol prevents freezing and raises the boiling point, but slightly reduces thermal performance.

 Specialized Aqueous Solutions: These contain additives to prevent corrosion, algae, and biological growth, and to lubricate pumps. These are what you typically buy as "PC coolant" for custom water-cooling loops.

Key Properties of PFPE Fluid as a Dielectric Coolant: Tel：+086-592-5803997

Exceptional Dielectric Strength: PFPE oils are superb electrical insulators. They have very high resistivity and dielectric strength, meaning they can withstand intense electric fields without breaking down and conducting electricity. This makes them safe for direct contact with high-voltage components.

 

Extreme Chemical Inertness: This is one of PFPE's hallmark features. It is non-reactive with most chemicals, including strong acids, bases, oxidizers, and aggressive solvents. It will not corrode metals, degrade plastics, or swell elastomers that are compatible with it. This ensures long-term system stability.

 

Thermal Stability: PFPE maintains its properties over a very wide temperature range, from as low as -90°C (-130°F) to over 200°C (392°F), depending on the specific formulation. It does not readily oxidize or decompose at high temperatures.

 

Non-Flammable: PFPE oils have no flash point or fire point. They are inherently non-flammable and can even be used as fire-suppressing fluids in some specialized applications.

 

Low Surface Tension & Good Heat Transfer: It wets surfaces well and can flow into small gaps, which aids in heat transfer. While its specific heat capacity is lower than water, its stability allows it to be used in situations where water or other coolants would fail.

 

Hydrophobic and Ophobic: It repels both water and other oils, which helps keep the cooling system and components clean and free from contamination.

Common Applications of PFPE fluid Coolant: Tel：+086-592-5803997

Aerospace & Defense: Cooling of high-power radar systems, avionics, and electronic warfare systems in fighter jets and satellites.

High-Voltage Power Electronics: Cooling of high-density IGBT modules, transformers, and other equipment where electrical isolation is paramount.

Extreme Environment Electronics: Where conditions involve high temperatures, reactive chemicals, or pure oxygen (e.g., industrial processes, deep-well drilling electronics).

Precision Instrumentation: Used in sensitive analytical and medical equipment where contamination or reactivity cannot be tolerated.

Historical/Niche Computing: Some early supercomputers (like Cray models) used PFPE-based immersion cooling.

 

 

Technical parameters OF pFPE coolant JHT Series 

 

MAIN PERFORMANCE	Technical parameters
	JHT-170	JHT-200	JHT-230	JHT-270
Appearance	Colorless & transparent Liquid
℃ Boiling point/℃	170	200	230	270
℃ Pour Point	-97	-85	-77	-66
g*cm³ Density/g*cm³	1.78	1.79	1.81	1.84
cSt(@25℃) Kinematic viscosity/cSt(@25℃)	1.7	2.9	4.7	12.0
cal*g-1*℃-1 Specific heat capacity/cal*g-1*℃-1	0.23	0.23	0.23	0.23
W*m-1*K-1 Thermal conductivity/W*m-1*K-1	0.065	0.065	0.065	0.065
kV(2.54mm) Penetration voltage/kV(2.54mm)	40	40	40	40
Dielectric constant	<2	<2	<2	<2
Ohm*cm Volumetric resistivity/Ohm*cm	>1.0*10^15	>1.0*10^15	>1.0*10^15	>1.0*10^15
(1Khz) Dielectric losses(1Khz)	2*10^-4	2*10^-4	2*10^-4	2*10^-4
ppm(wt) Moisture/ppm(wt)	<10	<10	<10	<10

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Company Profile Tel：+086-592-5803997

Looking for the perfect cooling solution? We're here to help.

From reliable traditional refrigerants to advanced fluorinated electronic cooling fluids, we offer a full range of products to meet your needs.

If you're interested in learning more, feel free to reach out-we're happy to provide MSDS, TDS, or a custom quotation anytime.

 

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