20LR550SU Allicdata Electronics
Allicdata Part #:

20LR550SU-ND

Manufacturer Part#:

20LR550SU

Price: $ 0.28
Product Category:

Circuit Protection

Manufacturer: Littelfuse Inc.
Short Description: PTC RESET FUSE 20V 5.5A STRAP
More Detail: Polymeric PTC Resettable Fuse 20V 5.5A Ih User Def...
DataSheet: 20LR550SU datasheet20LR550SU Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
20000 +: $ 0.25279
Stock 1000Can Ship Immediately
$ 0.28
Specifications
Series: POLY-FUSE®, LR
Packaging: Bulk 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Type: Polymeric
Voltage - Max: 20V
Current - Max: 100A
Current - Hold (Ih) (Max): 5.5A
Current - Trip (It): 10.5A
Time to Trip: 5s
Resistance - Initial (Ri) (Min): 9 mOhms
Resistance - Post Trip (R1) (Max): 22 mOhms
Operating Temperature: -40°C ~ 85°C
Ratings: --
Mounting Type: User Defined
Package / Case: Strap
Size / Dimension: 1.417" L x 0.283" W (36.00mm x 7.20mm)
Height - Seated (Max): --
Thickness (Max): 0.039" (1.00mm)
Lead Spacing: --
Approvals: cURus, TUV
Description

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses are an important safety device for many of today\'s electronic devices, commonly used in equipment such as battery-powered equipment, medical devices, mobile phones, computer motherboards, appliance and automotive products. The 20LR550SU is a surface mount device that is designed to provide exceptional overcurrent protection. It is suitable for high-powered applications up to 10A.In its normal state, 20LR550SU has a low resistance and can pass a large amount of current. But if a current large enough to exceed the rated current passes through, the PTC will switch to a high resistance state and block the current. In this mode, the 20LR550SU acts as a fuse that can block any excess current. The 20LR550SU has a large current capacity, allowing it to be used in devices where larger currents are required. The working principle of the 20LR550SU is based on the positive temperature coefficient (PTC) of a resistance material. When an over-current passes through it, its resistance rapidly increases due to the heating effect of the current, thereby preventing current overload and protecting the circuit. As the current passing through the PTC decreases, its temperature gradually returns to normal, reverting to a low resistance state.The 20LR550SU is ideal for applications where over-current protection is desired. It can be used in a variety of applications, including industrial equipment, medical devices, consumer electronics, computer peripherals, automotive electronics, as well as power supplies. Its wide temperature range makes it suitable for use in both commercial and military applications.The 20LR550SU offers a number of advantages over conventional fuses. Firstly, it can be reset after an over-current event, allowing it to be used again without the need to replace the device. This reduces both cost and maintenance time. Secondly, its surface mount design allows it to be easily installed onto a circuit board. This also reduces the space requirement and makes it easier to integrate the 20LR550SU into existing circuit designs. In addition, its low voltage rating and large current capacity make it suitable for use in a wide range of applications. The 20LR550SU is suitable for a wide range of current and voltage applications. It can be used for DC applications up to 72V and AC applications up to 48V. It has an excellent cycling rate which means that it can be switched on and off multiple times without affecting its performance. In addition, its low internal resistance means that it has a fast response time and thus can provide fast over-current protection. The 20LR550SU is quite robust and is designed to withstand many different environmental conditions. It has a wide operating temperature range from -40°C to +85°C and an operating temperature range from -20°C to +70°C. It also has a wide storage temperature range from -40°C to +125°C. Its low leakage current and low resistance make it suitable for high temperature applications.Overall, the 20LR550SU is a robust and reliable surface mount device that is ideally suited for use in a variety of applications. It provides excellent over-current protection and can be reset after an over-current event. Its robust design and wide operating and storage temperature range make it suitable for high temperature applications. Its fast response time and low internal resistance make it ideal for both DC and AC applications. It is suitable for a wide range of current and voltage applications and can operate in a wide range of environmental conditions.

The specific data is subject to PDF, and the above content is for reference

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