3D Models
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- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for LR4-190F
- Part Number LR4-190F
- Manufacturer LITTELFUSE
- Pin Count 999
- Last Modified Date Nov 10, 2025 10:34 AM UTC
- Pinout / Pin List Click Here (Member Only)
LR4-190F Details
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Manufacturer Part Number:
LR4-190F
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Pbfree Code:
Yes
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Reach Compliance Code:
Compliant
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ECCN Code:
EAR99
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HTS Code:
8533.40.80.70
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Manufacturer:
Littelfuse Inc
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YTEOL:
8
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Additional Feature:
Rmax:0.072 OHMS AT 20 DEG CEL
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Mounting Feature:
SURFACE MOUNT
LR4-190F Frequently Asked Questions (FAQs)
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The recommended mounting torque for the LR4-190F is 0.5 Nm to 1.5 Nm (0.4 in-lbs to 1.3 in-lbs) to ensure proper connection and prevent damage to the fuse.
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While the LR4-190F has a high operating temperature range of -40°C to 125°C, it's not recommended for use in extremely high-temperature applications (>150°C) as it may affect the fuse's performance and lifespan.
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To determine the correct fuse size, consider the maximum current rating, voltage rating, and interrupting rating required for your application. Consult the datasheet and application notes, or contact Littelfuse support for guidance.
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Yes, the LR4-190F is compatible with lead-free soldering processes, making it suitable for use in RoHS-compliant applications.
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The typical response time of the LR4-190F is around 10-20 ms, depending on the fault current and voltage. This ensures fast and reliable protection of your circuit.
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LR4-190F Overview
Use the download button to access the LR4-190F 3D model. You can still request or build the schematic symbol and PCB footprint by using the respective build or request forms on this page.
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