Glass Fuse 100mA – 250V (Size T5x20mm)

Description

A 100mA Glass Fuse – 250V (T5x20mm) is a common type of fuse used for overcurrent protection in low-voltage circuits. Below is a detailed datasheet-style description for this fuse:

100mA Glass Fuse – 250V (T5x20mm)

General Description:

The 100mA Glass Fuse with a 250V rating (Size T5x20mm) is designed for protecting electrical circuits from overcurrent conditions. This fuse contains a thin wire inside a glass tube that will break if the current exceeds 100mA for a prolonged period, thereby preventing potential damage to the circuit.

Key Specifications:

Electrical Characteristics:

Time-Current Characteristics (Slow Blow):

This fuse has a slow-blow (time-delay) characteristic, meaning it can tolerate brief current surges or spikes without blowing. It will blow if the current exceeds 100mA for a prolonged period.

• Typical Time-Delay for 100mA Fuse: The fuse will withstand overcurrent conditions up to 1.5 to 3 times its rated current (150mA to 300mA) for a short duration before opening the circuit.

Pinout Configuration:

• Pins: 2 Pins
  • The two leads from the fuse are used to connect it in-line with the circuit.
  • Pin 1: One lead is connected to the incoming current side.
  • Pin 2: The other lead connects to the load side of the circuit.

The leads are typically through-hole, which means the fuse is designed to be soldered directly into the circuit board.

Driving the 100mA Glass Fuse:

• The 100mA Glass Fuse should be placed in series with the circuit where overcurrent protection is needed.
• Ensure that the fuse’s current rating (100mA) is suitable for the circuit’s normal operating current.
• The fuse will blow and disconnect the circuit if the current exceeds 100mA for a prolonged period, protecting sensitive components.

Applications:

• Overcurrent Protection: Used in low-power circuits where a 100mA current limit is necessary to protect components from damage.
• Power Supply Circuits: Ideal for small power supplies where overcurrent protection is essential.
• Consumer Electronics: Often used in devices like chargers, power adapters, and small appliances.
• LED Strips or Light Fixtures: Protection for low-power LED lighting systems and fixtures.
• Circuit Boards: For PCB-mounted applications that require protection against short circuits or overcurrent conditions.

Advantages:

• Compact Size: The T5x20mm size is suitable for use in small electronics.
• Reliable Protection: Provides effective overcurrent protection without the need for complex circuitry.
• Slow-Blow Feature: Useful in circuits with inrush current or brief spikes.
• Wide Application Range: Suitable for a variety of consumer electronics and low-power circuits.

Safety Notes:

1. Do Not Overload: Ensure the fuse is rated appropriately for the circuit to avoid frequent blows or damage.
2. Replacement: If the fuse blows, replace it with the same 100mA 250V rating to ensure continued protection.
3. Fuse Storage: Store fuses in a cool, dry place and avoid exposing them to moisture or excessive heat.
4. Heat Management: While this fuse has relatively low power consumption, excessive heat in the circuit could lead to premature failure of the fuse.