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Glass Tube Fuses (5×20mm)
5×20 mm glass tube cartridge fuses — see a blown element at a glance — in fast-blow (F) and time-lag (T) for electronics, instruments and low fault-current circuits, built to IEC 60127-2.
Size: 5×20 mmSpeed: F · M · TVoltage: ≤ 250 V
Range
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4 of 4 products
| Product | Speed | Current | Voltage | Body | Datasheet |
|---|---|---|---|---|---|
| Glass Fast-Blow (F) TC-G520F | Fast (F) | 32 mA–10 A | 250 V | Glass 5×20 | — |
| Glass Time-Lag (T) TC-G520T | Time-lag (T) | 50 mA–10 A | 250 V | Glass 5×20 | — |
| Glass Medium (M) TC-G520M | Medium (M) | 100 mA–6.3 A | 250 V | Glass 5×20 | — |
| Glass Fast-Blow Low-V TC-G520F-LV | Fast (F) | 100 mA–5 A | 125 V | Glass 5×20 | — |
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Tenso manufactures 5×20 mm glass tube cartridge fuses in fast-blow (F), medium (M) and time-lag (T) speeds for electronics, instruments and low-power circuits. A glass body lets you see a blown element at a glance, which is why it’s a favourite for serviceable electronics with low fault currents. Where the circuit’s prospective fault current is higher, step up to ceramic fuses for the breaking capacity. Match the speed to the load — fast-blow for no-inrush, time-lag for motors and capacitive supplies. Ratings are indicative; confirm against the datasheet.
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FAQ
Glass Tube Fuses (5×20mm) — questions buyers ask
What's the difference between fast-blow and slow-blow?
Fast-blow (F) clears quickly for sensitive, no-inrush circuits. Slow-blow / time-lag (T) rides through brief start-up inrush, so it won't nuisance-trip on motors, transformers or capacitive supplies.
When should I use glass instead of ceramic?
Glass lets you see a blown element and suits low fault-current electronics. Use ceramic where the circuit's fault current is higher and needs a high-breaking body.
What size holder do I need?
A 5×20 mm holder or clip — panel-mount, in-line or PCB. Match the holder to the fuse format.