Smok Coil Heads – Original Replacement Coils
Smok replacement coil heads are platform-specific heating components designed for TFV, RPM and Nord series devices. Selecting the correct coil family and resistance (Ω) supports proper airflow alignment, stable liquid saturation and consistent output behaviour.
Lower resistance mesh coils are typically used for DTL configurations with higher VG liquids, while mid and higher resistance options are suited to restricted or MTL setups using balanced 50/50 formulations.
Products are intended for adult users (18+) in Ireland.
Smok Coil Heads
Quick Compatibility Guide
- TFV Series: For TFV8, TFV12, Prince, and Smok Morph 2 Kits.
- RPM Series: For RPM40, Fetch Mini, and Pozz X.
- RPM 2 Series: For Nord 4, IPX 80, and Scar-P3.
- Nord Series: For Nord, Nord 2, Nord 4, and Nord Pro Kits.
Resistance & Heating Element Matrix
| Resistance (Ω) | Inhale Style | Recommended VG/PG | Heating Element Type | Thermal Behaviour |
|---|---|---|---|---|
| 0.15Ω – 0.3Ω | DTL | 70/30 VG/PG | Mesh / Multi-mesh | Fast ramp-up, high vapour density |
| 0.4Ω – 0.6Ω | RDL | 60/40 – 70/30 | Mesh | Balanced heat output |
| 0.8Ω – 1.0Ω | Restricted MTL | 50/50 – 60/40 | Mesh / Wire | Moderate thermal load |
| 1.2Ω+ | Classic MTL | 50/50 | Kanthal Wire | Lower power requirement |
Compatibility Warning: RPM, RPM 2, and RPM 3 coils are NOT cross-compatible. Please verify the specific socket marking on your pod or tank base before purchase to ensure correct fitment.
Material Transparency & Coil Architecture
Mesh: Expanded metal heating surface designed to increase liquid contact and support even heat distribution across the wick.
Kanthal (FeCrAl): Stable resistance alloy intended for wattage mode operation.
Stainless Steel (SS316L): Compatible with temperature control (TC) and wattage modes when supported by the device chipset.
Ni80 (Nickel-Chromium Alloy): Fast ramp-up heating material. Users with nickel sensitivity should verify compatibility prior to use.
Smok Authenticity & Quality Control
Original Smok coil heads are distributed through authorised supply chains and typically include scratch-code authentication systems for verification on the official Smok website.
For returns and warranty (RMA) handling, authenticity verification and correct platform selection (TFV vs RPM vs Nord) help prevent fitment errors and avoidable compatibility issues.
Liquid Composition & Coil Longevity
High-VG liquids and heavily sweetened formulations may accelerate residue formation on mesh surfaces. Matching liquid viscosity to coil resistance supports more predictable performance and lifespan.
Thermal Stress Note: Operating Smok sub-ohm coils at their maximum rated wattage consistently can reduce wick lifespan by approximately 30%. For optimal longevity, stay within the "Best At" wattage range indicated on the coil housing.
Remaining within the manufacturer’s recommended wattage range reduces excessive thermal stress on the heating element.
Ireland Climate & Responsible Disposal
In cooler Irish ambient conditions, higher VG liquids become more viscous, potentially reducing capillary flow in tighter coil configurations. Maintaining devices at room temperature supports stable operation.
Used coil heads contain metal components and residual e-liquid. In Ireland, disposal should follow appropriate WEEE or metal recycling channels rather than general household waste.
Technical FAQ – Maintenance & Compatibility
Why does a 1.0Ω coil burn with 70VG liquid?
Higher viscosity liquids may exceed the wick intake capacity of tighter resistance coils, leading to dry spots and thermal stress. For MTL-focused resistances, 50/50 formulations typically provide more stable capillary flow.
What causes leaking in Smok pods or sub-ohm tanks?
Over-priming, worn seals, temperature swings, or using thinner high-PG liquids in low-resistance coils may increase liquid migration into airflow channels. Ensure the coil is fully seated and the correct coil family is used for the pod/tank base.
How long should I prime a new Smok coil?
Allow 5–10 minutes after filling to ensure full wick saturation before activation. Start at the lower end of the recommended wattage range and increase gradually to the target performance range.
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