0.2 Ohm Coil – What is it in Vaping?

Definition

A 0.2 OhmCoil is a low-resistance heating element used in sub-ohmvape tanks and rebuildable atomisers. Rated at 0.2 Ω (ohms), it allows more electrical current to pass from your 18650 Battery, 21700 Battery or 26650 Battery than standard coils, instantly vapourising e-liquid into dense, warm clouds. It is purpose-built for direct-to-lung (DTL) vaping, delivering intense flavour and larger vapour production while typically performing best between 40-70 W. Beginners upgrading from mouth-to-lung devices will notice a dramatic increase in airflow and vapour, but should pair the coil with high-VG juice and an appropriate mod to handle the higher amp draw.

Technical Details

The coil’s 0.2 Ω resistance is achieved through thicker wire gauges (often Kanthal A1, Ni80, or stainless-steel 316L) and fewer wraps, reducing electrical resistance and ramp-up time. Most factory-made 0.2 Ohm coils use a parallel or mesh strip configuration to maximise surface area, spreading heat evenly for consistent vapour. Typical specifications range from 40-80 W sweet spot, 3.5-4.2 V output on a fully charged battery, and 17-25 A current draw—well within the 30 A CDR of quality 21700 cells. Variants include single-mesh, dual-core, triple-core, and temperature-control stainless versions. Always verify the 510 Threadtank’s compatibility with your mod’s wattage ceiling and battery amp limits before installation.

Usage & Tips

  • Prime the coil generously: drip e-liquid onto exposed cotton until saturated, then let the filled tank stand 5-10 min to prevent dry hits.
  • Start at the manufacturer’s lowest recommended wattage and increase in 5 W increments to find your flavour sweet spot without burning cotton.
  • Use 70 VG / 30 PG or higher VG juice; high-PG liquids can leak through the larger wicking ports.
  • Carry spare coils—0.2 Ω variants tend to gunk faster with dessert or 0mg Nicotine sweetened flavours; rinse coils under warm water and dry-burn lightly to extend life.
  • Battery safety: ensure your cells have a continuous discharge rating (CDR) ≥ 25 A, lock the mod when pocketed, and never exceed 80 W on a single 18650 unless verified safe.

History & Context

When sub-ohm vaping emerged in Australia around 2014, cloud-chasing enthusiasts moved from 1.0 Ω clearomisers to 0.5 Ω and then 0.2 Ω coils, pushing devices like the Atlantis and Crown tanks into the mainstream. Advances in mesh heating and high-drain 21700 batteries have since made 0.2 Ohm the everyday standard for flavour-focused sub-ohm vapers nationwide.

Share the Post: