15A 250V Glass Cartridge Fuse 5 x 20mm

15A 250V Glass Cartridge Fuse (5 x 20mm) is a critical safety component that safeguards electronic equipment against damaging overcurrent conditions. This fast-acting, miniature fuse features a cylindrical glass body and plated end caps, housing a thin metallic element calibrated to melt rapidly when the current exceeds its 15 Ampere rating. Consequently, this action quickly opens the circuit, protecting sensitive downstream circuitry from irreversible damage caused by short circuits or sustained overloads. Designed for easy installation in fuse holders or direct soldering to PCBs, this 5 x 20mm standard size offers furthermore universal compatibility across a vast range of consumer and industrial electronics. Therefore, always ensure you select the correct current and voltage rating to guarantee optimal protection for your device.

Key Features:

• Overcurrent Protection: Provides reliable short-circuit and overload protection by interrupting the flow of current when it exceeds 15A.
• Fast-Acting Response: This fuse type interrupts the circuit rapidly when overcurrent occurs, which is essential for protecting delicate semiconductor components.
• Glass Body Construction: The transparent glass tube allows visual inspection of the internal fuse element, letting users easily confirm if the fuse is blown.
• Standard Miniature Size: The 5 x 20mm (diameter x length) form factor adheres to widely recognized international standards, ensuring compatibility with standard fuse clips and holders.
• High Voltage Rating: Rated for use in systems up to 250 V_AC, accommodating typical residential and light industrial line voltages worldwide.

Technical Specifications:

• Rated Current (I_N): 15 A
• Rated Voltage (V_N): 250 V_AC / 125 V_DC
• Breaking Capacity: Typically 100 A to 1500 A (Depending on manufacturer and standard)
• Fuse Characteristic: Fast-Acting (F)
• Operating Temperature: −55°C to +125°C (Max ambient temperature after derating)
• Resistance (R_DC): Very Low (Typically in the mΩ range)

Mechanical Specifications:

• Body Material: High-Quality Glass
• End Cap Material: Nickel-Plated Brass or Copper
• Fuse Element: Silver or Copper Alloy Wire
• Package Type: Cartridge (Cylindrical)

Dimensions:

• Diameter (D): 5.0 mm (±0.2 mm)
• Length (L): 20.0 mm (±0.5 mm)
• Form Factor Standard: IEC 60127-2/3

Pinout and Wiring:

• Function: The fuse is a two-terminal, series protection device.
• Connection Point 1: Connect one end cap to the power source (input line).
• Connection Point 2: Connect the opposite end cap to the load (protected circuitry).
• Wiring Note: Always install the fuse in series with the component or circuit you intend to protect. For maximum safety, place it immediately after the power input stage.

Datasheet Reference:

• Download Littelfuse 216 Series Fuse Datasheet (5x20mm Glass)

Commonly Used in:

• Power Supplies: Primary circuit protection for AC/DC power adapters and internal power supply units (PSUs).
• Audio/Visual Equipment: Found in amplifiers, TVs, and monitors to protect against internal faults.
• Test and Measurement Instruments: Shielding sensitive internal components in multimeters and oscilloscopes.

Applications:

• Appliance Protection: Safely operating small home appliances that connect directly to line voltage.
• Overload Limiting: Preventing component damage during the startup of inductive loads or inrush current events by blowing quickly under fault conditions.
• Equipment Maintenance: Facilitating rapid replacement during repair services due to their standardized form factor and easy accessibility in fuse holders.

Equivalent Models:

• Bussmann GMT-15A: A similar 5x20mm fast-acting glass fuse available from Cooper Bussmann.
• Bel Fuse 5ST 15-A: An industry cross-reference providing the same current, voltage, and fast-acting characteristics.
• Any F15AL250V: A generic descriptor for a 15 Amp, Fast (F), Low breaking capacity (L), 250 Volt, 5x20mm fuse.

Package Includes:

• 1 x 15A 250V Glass Cartridge Fuse (5 x 20mm)