Three Tip Systems, One FPV Bench: Which SEQURE Iron Wins?
Quick Answer
For a single portable iron on an FPV bench, we would choose the SEQURE SI012 Pro. It accepts T12 and TS tips, runs from USB-C PD, QC or a 3S–6S pack, and includes the field cable. Pick the S60 for finer C210 work; reserve the 20W S20 and its C115 tips for genuinely tiny joints.
The Model Name Hides the Important Difference
SEQURE’s four small irons look similar in a product grid: each has a 0.91-inch OLED screen, adjustable temperature, calibration, sleep controls and firmware support. The useful dividing line is not the display or the headline temperature. It is the tip system and the power source you will actually carry.
The SEQURE SI012 accepts long T12 and shorter TS tips, takes 12–25V DC or USB-C PD 3.0, and can run from a 3S–6S battery. Our listing offers T12-B2, TS-B2 and TS-K options, so check the selected variant rather than assuming every box contains the same tip.
The SEQURE SI012 Pro kit keeps that broad T12/TS choice but adds QC 2.0 support and includes an XT60-to-DC5525 lead, stand, storage bag and solder. That cable matters more at a flying field than another menu feature: a suitable flight pack becomes the supply without a separate mains brick.
S60 and S20 Are Precision Choices, Not Smaller SI012s
The SEQURE S60 Nano uses C210 tips, weighs 22g as listed and is limited to 12V input. SEQURE rates it at up to 60W, but its own guidance says a bundled 30W supply normally delivers roughly 25–35W; reaching the higher range requires a suitable 12V/60W source. We would choose it for flight-controller pads, receiver wiring and other fine electronics, not as our first tool for repeatedly heating heavy battery leads.
The SEQURE S20 Nano moves down again to C115 tips, 9V maximum input and 20W maximum power. That makes sense for very small surface-mount work. For normal FPV assembly, its compactness does not compensate for having less thermal reserve on ground pads, motor wires and battery connectors.
| Model | Tip family | Input | Our pick for |
|---|---|---|---|
| SI012 | T12 / TS | PD 3.0, 12–25V, 3S–6S | Flexible bench or field use |
| SI012 Pro | T12 / TS | PD 3.0, QC 2.0, 12–25V, 3S–6S | Best all-round FPV kit |
| S60 | C210 | PD/QC, 12V maximum | Fine PCB and receiver work |
| S20 | C115 | PD/QC, 9V maximum | Very small electronics |
What We Would Actually Buy
Our default is the SI012 Pro with a broad chisel-style tip. Tip shape transfers heat into an XT60 cup or ground pad more effectively than chasing the highest temperature setting with a needle tip. Before the first build, read our FPV soldering guide; if a joint looks dull or sits on top of the pad, use the checks in our cold-joint diagnosis.
Whichever model you choose from our tools collection, match the supply to the iron’s voltage and protocol requirements. A USB-C socket does not guarantee that a charger negotiates the voltage or power the iron needs.
FAQ
Q: Can the SI012 run from an FPV LiPo?
A: Yes. SEQURE specifies 12–25V DC and 3S–6S battery support. Use the correct lead, set low-voltage protection appropriately and never leave a flight pack connected unattended.
Q: Are SI012, S60 and S20 tips interchangeable?
A: No. SI012 uses T12 or TS tips, S60 uses C210, and S20 uses C115. Choose the tip ecosystem before buying spare tips.
Q: Is the smallest iron best for FPV?
A: Usually not. The S20 is attractive for tiny components, but the SI012 Pro is the more useful one-tool choice across receiver pads, motor wires and battery connectors.