LR4-380F
Manufacturer: Littelfuse
Part Number: LR4-380F
| Attribute | Value |
| cate_name | PTC Resettable Fuses |
| Datasheet | LR4-380F Littelfuse |
| rohs | Compliance |
| reference_package | |
| mounting | |
| application_level | Industrial |
| lifecycle | On sale |
| spm | Bagged |
| operating_temperature | -40℃~85℃ |
| length_width_height | 25mm*7.2mm*1mm |
| cold_resistance | - |
| hold_current | 3.8A |
| max_current_rating | 100A |
| max_post_trip_resistance | 37mΩ |
| max_voltage | 15V |
| min_initial_resistance | 13mΩ |
| trip_current | 8.3A |
| trip_time | 5s |
Overview:
The Littelfuse LR4-380F is a high-performance fused diode designed to offer reliable protection against overvoltage and overcurrent conditions in various electronic applications. With its robust construction and advanced technology, the LR4-380F ensures optimal performance and longevity in demanding environments.
Features:
1. High Surge Current Capability: The LR4-380F can withstand high surge currents, making it suitable for applications with fluctuating power demands.
2. Fast Response Time: The diode's quick response time ensures rapid protection against voltage spikes and transient events.
3. Low Forward Voltage Drop: The LR4-380F offers a low forward voltage drop, improving overall system efficiency.
4. Compact Size: The small form factor of the LR4-380F makes it ideal for space-constrained applications.
5. Wide Operating Temperature Range: The diode operates effectively in a broad temperature range, ensuring consistent performance in various climates.
Development Support:
Littelfuse provides comprehensive development support for the LR4-380F, including:
1. Technical Documentation: Detailed datasheets, application notes, and design guides to assist engineers in integrating the diode into their projects.
2. Design Tools: Online tools and calculators to help engineers select the appropriate diode and optimize their designs.
3. Customer Support: Access to Littelfuse's expert technical support team for personalized assistance during the development process.
Application Areas:
The Littelfuse LR4-380F is suitable for a wide range of applications, including:
1. Power Supplies: Protecting power supply circuits from voltage spikes and overcurrent conditions.
2. Automotive Electronics: Ensuring the reliability and safety of automotive electronic systems.
3. Telecommunications: Protecting sensitive communication equipment from voltage transients and power surges.
4. Industrial Control Systems: Safeguarding industrial control systems against electrical disturbances.
Parameter Introduction:
Key parameters of the Littelfuse LR4-380F include:
1. Maximum Forward Voltage (VF): 1.1V
2. Maximum Current (IF): 4A
3. Maximum Power Dissipation (PD): 63W
4. Surge Current Capability: 200A (8/20µs)
5. Operating Temperature Range: -55°C to +150°C
Frequently Asked Questions (FAQs):
Q1: What is the primary function of the Littelfuse LR4-380F?
A1: The LR4-380F is a fused diode designed to protect electronic circuits from overvoltage and overcurrent conditions.
Q2: What are the key advantages of using the LR4-380F in my application?
A2: The LR4-380F offers high surge current capability, fast response time, low forward voltage drop, compact size, and a wide operating temperature range, making it suitable for various demanding applications.
Q3: Can I use the LR4-380F in automotive applications?
A3: Yes, the LR4-380F is suitable for automotive applications, providing reliable protection for automotive electronic systems.
Q4: What development support does Littelfuse offer for the LR4-380F?
A4: Littelfuse provides technical documentation, design tools, and customer support to assist engineers in integrating the LR4-380F into their projects.
Q5: What is the maximum current the LR4-380F can handle?
A5: The LR4-380F can handle a maximum current of 4A.
Please refer to the product rule book for details.
Headquartered in Chicago, Illinois, Littelfuse has a vast network of operations including manufacturing facilities, sales offices, and engineering centers spread across the Americas, Europe, and Asia. This extensive footprint allows Littelfuse to efficiently serve its global customer base with a wide array of products and services.
Littelfuse's product portfolio is one of the broadest in the industry, encompassing fuses, fuse holders, protection relays, switches, and custom-engineered electrical components. The company's products are vital in preventing damage from electrical overloads and short circuits. Over the years, Littelfuse has expanded its product offerings through strategic acquisitions and research and development, moving beyond traditional circuit protection into power control and sensing technologies. These newer technologies include sensors for temperature, speed, and flow, as well as power semiconductors and modules that manage and control electronic power systems.
Innovation is at the core of Littelfuse's strategy. The company invests heavily in research and development to ensure it stays at the forefront of technological advancements. Littelfuse's R&D efforts focus on developing new materials, technologies, and products that meet the evolving needs of its customers. This commitment to innovation has resulted in numerous patents and industry awards.
Sustainability is another key focus for Littelfuse. The company is dedicated to environmental stewardship and aims to minimize its ecological footprint through sustainable practices. This includes reducing waste, conserving energy, and designing products that are environmentally friendly. Littelfuse also emphasizes ethical business practices and corporate social responsibility, aiming to make a positive impact on the communities where it operates.
Littelfuse's market leadership is supported by its commitment to quality and reliability. The company's products are designed to meet rigorous standards and are tested extensively to ensure performance and durability. This focus on quality has helped Littelfuse build long-standing relationships with leading manufacturers in various industries, including automotive, renewable energy, and consumer electronics.
In summary, Littelfuse is a pivotal player in the circuit protection market with a growing presence in power control and sensing technologies. With a legacy of innovation and quality, Littelfuse continues to expand its product offerings and technological capabilities to meet the needs of a dynamic global market. Through its commitment to sustainability, innovation, and quality, Littelfuse is well-positioned to continue its leadership in the electrical and electronics industry.
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