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Littelfuse 0.3 A Resettable Fuse, 60V SMD030F-2
Specifications
| Country of Origin | India |
|---|---|
| Voltage | 60V |
| Brand | Littelfuse |
| Height | 3.18mm |
| Length | 7.98mm |
| Model | SMD030F-2 |
| Width | 5.44mm |
| Current Rating | 300mA |
| Series | PolySwitch |
| Maximum Operating Temperature | 85°C |
| Trip Current | 600mA |
| Power Dissipation | 1.7W |
| Terminal Material | Tin Plated |
| Time to Trip | 3s |
| Hold Current | 0.3A |
| Minimum Resistance | 1.2Ω |
| Maximum Resistance | 4.8Ω |
| • SMD - Hold current 0.3 - 1.25A | 7555 (metric) 2920 (Imperial) |
| • SMD2 - Hold current 1.5 - 2.5A | 8763 (metric) 3425 (Imperial) |
| TE Connectivity 0.3A Resettable FuseBrand | TE Connectivity |
Key Features
- The fuse features a hold current of 0.3 A and a trip current of 600 mA.
- It operates at a maximum voltage of 60 V for safe circuit protection.
- The fuse body measures 7.98 mm length, 5.44 mm width, and 3.18 mm height, making it suitable for space-constrained applications.
- Its terminal material is tin plated for reliable electrical contact.
- The fuse provides power dissipation of 1.7 W and withstands up to 85°C maximum operating temperature.
- PolySwitch series fuses feature maintenance-free automatic reset for thousands of cycles without requiring fuseholders.
- Designed for use in security systems, power supplies, automotive, medical, instrumentation, computers, and telecommunications.
Product Description
Littelfuse SMD030F-2 0.3 A Resettable Fuse, 60V is a surface mount PolySwitch fuse designed for automatic reset and circuit protection in industrial, electronic, and electrical applications. It provides reliable protection against excessive current in various environments including automotive, medical devices, security systems, and consumer electronics.
With a trip current of 600 mA and hold current of 0.3 A, this fuse responds rapidly within 3 seconds to overcurrent conditions, transitioning to a high resistance state to protect the circuit. Once the fault condition is removed and power is reset, it automatically returns to a low resistance state, eliminating the need for fuse replacement.
The compact dimensions of 7.98 mm length, 5.44 mm width, and 3.18 mm height alongside tin-plated terminals facilitate integration into SMT assemblies and space-limited circuit designs. The fuse handles a maximum voltage of 60 V and dissipates power at 1.7 W, operating safely up to 85°C ambient temperature.
These attributes make it ideal for use in power supplies, transformers, instrumentation and control systems, automotive circuits, medical equipment, and telecommunication devices. The PolySwitch technology ensures maintenance-free operation through thousands of automatic reset cycles, improving system reliability and reducing downtime.
The fuse automatically resets after fault clearance, allowing continuous protection without manual replacement. The compact SMT form factor supports automated insertion and high-volume manufacturing efficiencies. Applications extend to industrial automation, computer peripherals, audio visual systems, and power switching circuits.
The fuse's tin-plated terminal provides excellent conductivity and corrosion resistance. Its reliable performance under maximum operating temperature supports harsh environment deployment. EnvMart offers this Littelfuse PolySwitch SMD030F-2 Resettable Fuse suitable for diverse industrial and commercial electronics requirements.
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Frequently Asked Questions
The hold current of this model is 0.3 A.
It operates at a maximum voltage of 60 V.
The fuse measures 7.98 mm in length, 5.44 mm in width, and 3.18 mm in height.
The trip current for the Littelfuse SMD030F-2 is 600 mA.
It can operate safely at a maximum temperature of 85°C.
This model has a power dissipation rating of 1.7 W.
It responds rapidly within 3 seconds to overcurrent conditions.
The terminals are made from tin-plated material for reliable electrical contact.
It is suitable for use in automotive, medical devices, security systems, and consumer electronics.
The minimum resistance is 1.2Ω and the maximum resistance is 4.8Ω.
This model belongs to the PolySwitch series of resettable fuses.
It is a surface mount resettable fuse designed for automatic reset and circuit protection.
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