1808 SMD Fast Blow Fuse 125V – 1A

1808 SMD Fast Blow Fuse 125V – 1A offers reliable circuit protection in compact electronic designs. Built for quick response to overcurrent events, this fuse helps safeguard sensitive components in consumer electronics, power supplies, and industrial controllers where space-saving and fast action matter.

Key Features:

• Fast-Acting Protection: Opens quickly under fault conditions to protect delicate circuits.
• Compact 1808 Package: Fits dense PCB layouts without compromising performance.
• Rated for 125 V AC/DC: Handles common supply rails and protection lines.
• Reliable Construction: Ensures consistent breaking characteristics and stable operation.
• Surface-Mount Design: Supports automated assembly and reflow soldering processes.

Technical Specifications:

• Fuse Type: Fast Blow (Quick Acting)
• Rated Current: 1 A
• Rated Voltage: 125 V AC/DC
• Interrupting Rating: Up to 50 A @ 125 V AC/DC
• Typical Resistance: ≤ 0.1 Ω
• Operating Temperature: −55 °C to +125 °C
• Time-Current Characteristics: Blows rapidly when current exceeds rated level (see datasheet curve)

Mechanical Specifications:

• Package Type: 1808 Surface-Mount (4.5 × 2.0 mm approx.)
• Construction: Ceramic body with protective encapsulation
• Mounting Style: Surface-mount reflow compatible
• Terminal Material: Nickel/tin plated terminations
• Compliance: RoHS and lead-free

Dimensions:

• Length: ~4.50 mm
• Width: ~2.00 mm
• Height: ~2.00 mm
• Terminal Pitch: Standard 1808 spacing

Pinout and Wiring:

• Terminal 1: Fuse input connection
• Terminal 2: Fuse output connection
• Wiring Note: Mount in series with the protected circuit path; ensure pads are correctly dimensioned for SMD soldering.

Datasheet Reference:

• Refer to the manufacturer’s datasheet for detailed electrical curves, reflow profiles, and safety compliance certifications.

Applications:

• Consumer Electronics: Protects smartphones, tablets, and small appliances.
• Power Supplies: Guards against short circuits and overloads.
• Industrial Equipment: Provides overcurrent protection in compact controllers and modules.
• Automotive Electronics: Safeguards sensitive in-vehicle electronic systems.

Equivalent Models:

• Littelfuse 0468 Series: 125 V fast-acting SMD fuse
• Bourns SF-1206 Series: Compact quick-acting SMD fuses
• Bel Fuse 0678 Series: Surface-mount fast blow alternatives

Package Includes:

• 1 x 1808 SMD Fast Blow Fuse 125V – 1A