Unique-Bargains
Unique-Bargains DIP Mounted Miniature Square Slow Blow Micro Fuse T2.5A 250V Black 30Pcs
A pack of 30 DIP-mounted square slow-blow micro fuses rated T2.5A at 250V with 4.5mm pin spacing
- Time-delay protection prevents nuisance trips
- 250 V and 2.5 A rating suits mains circuits
- 30-piece pack provides ample spares
- 5 mm × 7.5 mm body fits tight PCBs
- 21 mm pins allow secure through-hole mounting
Pack of 30 Slow-Blow Micro Fuses
This pack contains thirty DIP-mounted miniature square fuses rated at 250 volts and T2.5A. They are designed for through-hole PCB mounting in power supplies, chargers and similar electronic equipment. The slow-blow characteristic tolerates brief inrush currents without nuisance tripping. Buyers needing a higher current rating or a different package quantity will need a different product.
Thermal and Electrical Behaviour
The slow-blow element withstands temporary overloads while protecting the circuit from sustained overcurrent. Body dimensions are 8.5mm by 7.5mm by 4.2mm with a pin length of 21mm and pin spacing of 4.5mm. Power dissipation in normal use stays within the fuse's rated limits. No active cooling or noise considerations apply to these passive components.
Mounting and Compatibility
The 4.5mm pin pitch suits standard through-hole layouts. Each fuse body measures 8.5mm long, 7.5mm wide and 4.2mm high with 21mm leads for easy insertion. The pack supplies thirty pieces for multiple repairs or production runs. Builders requiring surface-mount devices or a different pin spacing cannot use these fuses.
Highlights
- Time-delay protection prevents nuisance trips
- 250 V and 2.5 A rating suits mains circuits
- 30-piece pack provides ample spares
- 5 mm × 7.5 mm body fits tight PCBs
- 21 mm pins allow secure through-hole mounting
Specifications
| Brand | Unique Bargains |
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Questions about this item
How do I install the DIP-mounted fuse with 4.5 mm pin spacing, and what is the common mistake?
Align the 21 mm pins with the 4.5 mm spaced holes on the PCB and press the 8.5 mm × 7.5 mm body flush to the board; the frequent error is leaving a gap that stresses the pins during thermal cycling.
What maintenance or replacement will these slow-blow micro fuses need over time?
They are single-use protection devices; after a sustained overload trips the T2.5A element, the fuse must be desoldered and replaced with a new unit from the 30-piece pack.
What limit appears first when the fuse runs continuously near its 2.5 A rating at 250 V?
The slow-blow element reaches its thermal limit and opens the circuit, which is the intended protective action before wiring or downstream components overheat.
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