SMD Ceramic Fuse 1808 250V 15A

Description

1808 SMD Ceramic Fuse — 250 V, 15 A (Fast-Acting)

Electrical Ratings

• Voltage Rating: 250 VAC/DC (common rating for 1808 fuses) — also available variants to 125 V and 300 V.

• Current Rating: 15 A (this is the top of the range for 1808 fuses).

• Fuse Type: Fast-acting (quick blow) — opens quickly on overcurrent.

• Blowing Characteristics: At 100% of rating, must carry 15 A continuously for >4 hours; at 200% of rating, blows in <120 s.

• Breaking Capacity: Often around 50 A (the maximum interrupt current without damage).

• Nominal Cold Resistance: Typically low (≈ few milliohms; e.g., ~0.0035 Ω in some brands).

Physical & Packaging

• Package / Case: 1808 SMD (chip fuse) — ~6.1 mm × 2.5 mm × 2.5 mm typical.

• Mounting Style: Surface-mount (SMT) tape-and-reel compatible.

• Body Material: Ceramic (good thermal and shock tolerance).

• Termination: Plated brass caps (often silver or gold plating).

Environmental & Durability

• Operating Temperature: ~–55 °C to +125 °C typical.

• Storage Conditions: +10 °C to +60 °C, ≤75 % RH.

• Soldering:

  • Reflow / wave capable: 260 °C max, short dwell (wave ≤5 s).

  • Manual iron: 350 ± 5 °C, ~1–2 s heating.

Standards & Compliance

• Often UL 248-14 listed (fuse safety standard).

• RoHS compliant, lead-free.

Typical Time-Current Behavior