English
العربية
Български
粤语
中文(简体)
中文(漢字)
Nederlands
Suomi
Français
Deutsch
Ελληνικά
Magyar
Italiano
日本語
한국어
Polski
Português
Română
Русский
Slovenščina
Español
Svenska
ภาษาไทย
Türkçe
Tiếng Việt
Axial Lead 125/250V PICO Resistance Fuse
PICO resistor fuse is a circuit protection component that looks like a resistor and has the dual functions of a resistor and a fuse. It is mainly used for overcurrent protection of electronic equipment. The following are its technical details and application analysis:
A 2.4 x 7mm axial lead fuse with a 125/250V rating and a pico size is a small, cylindrical fuse designed for overcurrent protection in electronic devices. De “2.4 x 7mm” refers to its dimensions, indicating a diameter of 2.4mm and a length of 7mm. De “axial lead” means it has wire leads extending from each end for easy soldering onto a circuit board. The 125/250V rating specifies the maximum voltage the fuse can handle before blowing. “Pico” indicates its small size, often used in applications where space is limited.
 2.4 * 7mm Resistor Fast Blow Fuse 63mA 125mA 250mA 1A 2A 3A 4A 5A 7A 8A 10A |
 2.4 * 7mm axial Lead Green, Yellow Resistor Slow Blow Fuse |
 The PICO® II 2.4 x 7mm very fast-acting fuse small size |
1. Core Features and Classification
Appearance and Structure: Epoxy coating package, the body color is mostly green or yellow, and some models use color rings to indicate current parameters (such as 2×6mm, 3×9mm specifications).
Fusing Characteristics:
Fast type: snabb svarshastighet, suitable for sensitive circuits;
Slow type: withstand short-term overcurrent (such as motor starting current).
Dual function: acts as a resistor in normal operation and fuses out the circuit in case of overcurrent.
Storlek: 2.4mm x 7mm, indicating its physical dimensions.
Axial Lead: The fuse has wire leads extending from both ends, making it suitable for through-hole mounting on a PCB.
125/250V: This indicates the maximum voltage the fuse can safely interrupt. It can be used in circuits with either 125V or 250V.
Pico: Refers to a small form factor, often used in compact electronic devices.
Resistance Fuse: A fuse is a safety device that protects circuits from overcurrent. When the current exceeds a certain threshold, the fuse element melts, breaking the circuit and preventing damage.
Overcurrent Protection: The primary function of the fuse is to protect the circuit from damage caused by excessive current flow.
Electronic Applications: These fuses are commonly found in various electronic devices, including power supplies, displays, and networking equipment.
2. Key parameters and models
Electrical Specifications:
Spänningsvärde:
Ensure the fuse’s voltage rating is appropriate for the circuit it will be protecting.
Aktuellt betyg:
Choose a fuse with the correct current rating to match the circuit’s requirements. Using a fuse with too low a current rating will cause it to blow prematurely, while using one with too high a rating will not provide adequate protection.
Fuse Type:
Pico fuses are available in different types (e.g., fast-acting, time-delay). Select the appropriate type based on the specific application and the characteristics of the circuit it will protect.
Current range: 62mA to 15A, typical models such as S3090 (1A-5A), R2560 (1A-3A).
Certification standards: Passed international certifications such as UL, CSA, ROHS, CCC.
3. Typical application scenarios
Consumer electronics: USB power adapter, overcurrent protection in charging circuits;
Industrial equipment: High-density PCB board mounting (such as SMD package models);
Automotive electronics: Plug-in structure for vehicle circuit protection.
4. Selection and usage precautions
Parameter matching: The model needs to be selected according to the working current, voltage and fuse speed;
Installation method: Tape packaging is suitable for automated patch production, and axial lead models are suitable for through-hole welding;
Prohibited substitution: It is strictly forbidden to use ordinary resistors or copper wires to avoid protection failure.
Kontakta oss
Väntar på ditt mejl, vi kommer att svara dig inom 12 timmar med värdefull information du behövde.
RELATERADE PRODUKTER
6×30 mm Fast (Slow) Tube Fuses with Ceramic, Glas
6 X 30, 6.3 X 32 fuses Regarding the type characteristics, the difference between fast-acting type (F type) and slow-acting type (T type) is very important. This is similar to the 5*20 säkring, but the application scenario may be different. In terms of certification, it is particularly noted that the CCC, UL, CE, VDE mandatory certification range is 500mA-30A current segment, which is critical for compliant procurement.
Anpassad långsamt F1A/250V 3×10 glassäkring med bly
Rollen för 3,6x10 mm säkring：När en krets inte fungerar eller är onormal, strömmen stiger ständigt, och den ökade strömmen kan skada vissa viktiga komponenter eller värdefulla komponenter i kretsen, eller det kan bränna kretsen eller till och med orsaka brand. Säkringen på 3,6x10 mm kommer att bryta strömmen när strömmen onormalt stiger till en viss höjd och en viss tid, därigenom skyddar kretsen säker drift.
Funktioner och tillämpningar av elektroniska säkringar (sporre)
Electronic fuses (sporre) are solid-state devices that protect electronic circuits from overcurrent conditions. Unlike traditional fuses, they can be electronically reset, offering a more convenient and efficient solution for circuit protection. eFuses protect against short circuits, overloads, and other fault conditions, preventing damage to devices and wiring.