Alientek T90 Smart Soldering Iron 140W
- 18 to 140W via PD3.1/QC3.0 USB-C
- 80 to 450 C, +/-2% accuracy
- Presets 280 C / 350 C / 450 C
- T245 tip on the T90B
- About 55g, CNC aluminum shell
- 140W 1.2m Type-C cable included
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A powerful USB-C soldering pen that runs from fast chargers and power banks with a clear screen and quick presets. Full power needs a high-wattage charger.
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ASIN: B0FX3QRCJ7Model: T90BCategory: Soldering Irons
Overview
Not a corded bench station, the Alientek pen draws power over USB-C from fast chargers or power banks. A small color screen shows temperature, power and voltage, and a quick-lock sleeve speeds tip swaps.
Portable USB-C power with high wattage makes field repairs possible without a bench station. Output depends on the charger, so a weak adapter limits heat on large joints.
Who it's for
Mobile repair techs, lab users and DIY electronics fans suit it. People who only solder at a fixed bench may prefer a station.
Pros and cons
- Runs on USB-C chargers
- Clear status screen
- Light aluminum body
- Auto sleep protects tips
- Power limited by charger
- Charger not included
Performance notes
The pen negotiates the highest power the charger offers, which sets how fast it heats and recovers. PID control holds temperature steady as heat flows into joints.
Specifications
| Brand | Alientek |
|---|---|
| Model | T90B |
| Dimensions & fit | |
| Item Length | 7 inches |
| Item weight | About 55g |
| Item Weight | 0.1 kg |
| Capacity & performance | |
| Upper Temperature Rating | 450 C |
| Heating Element | Ceramic |
| Wattage | 18 to 140W (140 watts max) |
| Temperature range | 80 to 450 C |
| Temperature accuracy | +/-2% |
| Power & efficiency | |
| Input Voltage | 9 to 28V USB-C |
| Power Source | Corded Electric |
| Included components | |
| Included Components | Soldering iron, 140W 1.2m Type-C cable, stand |
| Other details | |
| Tip | T245 |
| Display | 0.99-inch IPS LCD, 160x40 |
| Additional Features | Portable |
| Specific Uses For Product | Industrial Use |
| Style Name | Pencil |
Frequently asked questions
Can the Alientek T90 run on a power bank?
Yes. It accepts PD3.1/QC3.0 adapters and power banks with 9 to 28V input.
Which tip does the T90B use?
T245 tips; the T90A uses T210 and the T90C uses T65.