Product Overview
The 0453001.MR from Littelfuse is a NANO2 very fast-acting surface-mount fuse rated at 1A, 125VAC/VDC, with 78mOhm resistance, 50A interrupting rating at 125V, and a 2410 (6125 metric) package footprint.
Key Specifications
| Manufacturer | Littelfuse |
| Series | 453 NANO2 |
| Fuse Type | Very Fast-Acting |
| Current Rating | 1A |
| Voltage Rating AC | 125VAC |
| Voltage Rating DC | 125VDC |
| Interrupting Rating | 50A @ 125VAC/VDC, 300A @ 32VDC |
| Resistance | 78mOhm |
| Package | 2410 (6.1 x 2.69 x 2.69mm) |
| Operating Temperature | -55C to +125C |
| Approval | UL, cURus |
Features
- Very fast-acting fuse characteristic
- NANO2 2410 surface-mount package
- 300A interrupting rating at 32VDC
- Low resistance: 78mOhm
- UL and cURus recognized
- RoHS compliant
- Wide operating temperature: -55C to +125C
- Overcurrent protection in power supplies
- LED lighting drivers
- Consumer electronics
- Telecommunications equipment
- Industrial control systems
- Overcurrent protection in 125VAC/VDC power supply outputs
- LED driver module short-circuit protection
- Telecom equipment port current limiting
Applications
The Littelfuse 0453001.MR is a very fast-acting surface-mount fuse from the 453 NANO2 series, designed for overcurrent protection in space-constrained applications. The 2410 package footprint provides a compact solution while maintaining a 125VAC/VDC rating and 1A current capacity. The very fast-acting characteristic ensures rapid response to overcurrent conditions, protecting sensitive downstream components. With 78mOhm resistance, the fuse minimizes voltage drop and power dissipation in normal operation. The 50A interrupting rating at 125V and 300A at 32VDC provides safe fault clearing. The UL and cURus approvals ensure regulatory compliance for safety-critical applications.
The 0453001.MR operates as a single-use overcurrent protection device: 1) Normal Operation: At currents below the 1A rated value, the fuse element maintains a low resistance of 78mOhm, allowing normal circuit operation with minimal voltage drop. 2) Overcurrent Response: When current exceeds the fuse rating, the very fast-acting characteristic causes the fuse element to melt rapidly, interrupting the circuit before damage can occur to downstream components. The opening time decreases with increasing overcurrent (e.g., 210% of rating opens within 120s, 1000% opens within 20-150ms). 3) Fault Clearing: Once the fuse element melts, an arc may form momentarily but is quickly extinguished by the ceramic body filler material, safely clearing the fault within the interrupting rating limits.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Terminal 1 | Connection | First terminal of fuse element |
| 2 | Terminal 2 | Connection | Second terminal of fuse element |
| Manufacturer | Part Number | Package | Notes |
|---|---|---|---|
| Littelfuse | 0453002.MR | 2410 | 2A, same series |
| Littelfuse | 0451001.MR | 2410 | 1A, 451 series (fast-acting) |
| Bel Fuse | 0ZCJ0010FF2E | 2410 | 1A, 125V fast-acting SMD |
| Schurter | USFA 1100 | 2410 | 1A, fast-acting SMD fuse |
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We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.
Shipping & Payment
All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.
Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.
Service & Packaging
All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.
Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.