Littelfuse Inc. LR4-450F

LR4-450F Supplier & Distributor

LR4-450F is an electronic component manufactured by Littelfuse Inc.. We are a professional electronic components supplier providing original parts with large stock available in Shenzhen Huaqiangbei.

We supply LR4-450F with competitive pricing, fast global delivery and reliable sourcing services for OEM, EMS and electronic trading companies.

  • Original and genuine components
  • Large stock inventory available
  • Fast worldwide shipping
  • Support for bulk orders
Part No.:
LR4-450F
Manufacturer:
Littelfuse Inc.
Category:
PTC Resettable Fuses
Package:
Strap
Datasheet:
TomatoElecLR4-450F.pdf
Description:
PTC RESET FUSE 20V 4.5A STRAP
Quantity:

Unit Price:$0

Ext Price:$0

Payment:
Payment
Shipping:
Shipping

Inventory:6,004

Send us your inquiry,we will respond immediately.

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Quantity
Price
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Stock:6,004

Qty. Unit Price Ext Price
1+$0.000$0.000
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About LR4-450F

Looking for LR4-450F supplier or distributor? Tomato Electronics provides high-quality electronic components including MLCC capacitors, tantalum capacitors, ICs, diodes and more.

Contact us now for quotation and availability of LR4-450F.

LR4-450F Specifications

  • Specifications
  • FAQ
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Attributes
Property Value
Manufacturer
Littelfuse Inc.
Package/Case:
Strap
Series:
PolySwitch®, LR4
Packaging:
Bag
Product Status:
Active
Type:
Polymeric
Voltage - Max:
20V
Current - Hold (Ih) (Max):
4.5 A
Current - Trip (It):
8.9 A
Current - Max:
100 A
Time to Trip:
5 s
Resistance - Initial (Ri) (Min):
11 mOhms
Resistance - Post Trip (R1) (Max):
28 mOhms
Resistance - 25°C (Typ):
-
Operating Temperature:
-40°C ~ 85°C
Grade:
-
Qualification:
-
Ratings:
-
Mounting Type:
User Defined
Size / Dimension:
0.984" L x 0.413" W (25.00mm x 10.50mm)
Height - Seated (Max):
-
Thickness (Max):
0.039" (1.00mm)
Lead Spacing:
-
Category:
PTC Resettable Fuses
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1. How to order LR4-450F from Hong Kong Tomato Electronics Co., Limited?

You can submit an RFQ for LR4-450F directly on our website. After receiving your request, our sales team will contact you with price, availability, lead time and order details. Once you confirm the quotation, we will help you complete the order process.

2. How does Hong Kong Tomato Electronics Co., Limited ensure that LR4-450F is original and reliable?

Hong Kong Tomato Electronics Co., Limited works with qualified supply channels and applies strict quality control procedures for electronic components including LR4-450F. We pay close attention to supplier screening, product verification and delivery quality to help customers source with confidence.

3. Are the price and inventory of LR4-450F accurate?

The price and inventory of LR4-450F may change due to market conditions and stock movement. We update information as frequently as possible, but final quotation and availability should be confirmed by our sales team. In most cases, quotations are valid for 3 to 5 days.

4. What payment methods are accepted?

We usually accept Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union and other agreed payment methods, depending on the order and customer location.

Please note that some payment methods may involve additional handling charges.

5. How is the shipping arranged?

Customers can choose major international carriers such as DHL, UPS, FedEx and other available shipping methods. Shipping options depend on package size, destination and delivery urgency.

After shipment, our team will send you the shipping status and tracking number by email.

Please note that tracking information may take some time to become active after dispatch.

6. What is the return or replacement policy for LR4-450F?

All shipments are checked before dispatch. If there is a confirmed issue related to the delivered LR4-450F, such as incorrect quantity, wrong item or verified product problem, please contact us as soon as possible.

Return or replacement requests are usually accepted only when the part remains unused and in its original packaging, and when the issue is reported within the agreed time after delivery.

Please contact our team first before returning any goods so that we can confirm the issue and provide return instructions.

7. How can I get technical support, such as the datasheet or specifications for LR4-450F?

If you need technical support for LR4-450F, including datasheets, specifications or general product information, please contact our sales team. We will do our best to help you obtain the relevant information.

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  • Comparison
  • Related
Images LR4-450F LR4-1300SSF LR4-380F LR4-600F LR4-550F
Part No. LR4-450F LR4-1300SSF LR4-380F LR4-600F LR4-550F
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Package/Case Strap Strap Strap Strap Strap
Series PolySwitch®, LR4 PolySwitch®, LR4 PolySwitch®, LR4 PolySwitch®, LR4 PolySwitch®, LR4
Packaging Bag Bag Bag Bag Bag
Product Status Active Active Active Active Active
Type Polymeric Polymeric Polymeric Polymeric Polymeric
Voltage - Max 20V 20V 15V 20V 20V
Current - Hold (Ih) (Max) 4.5 A 13 A 3.8 A 6 A 5.5 A
Current - Trip (It) 8.9 A 21.2 A 8.3 A 11.7 A 10.5 A
Current - Max 100 A 100 A 100 A 100 A 100 A
Time to Trip 5 s 10 s 5 s 5 s 5 s
Resistance - Initial (Ri) (Min) 11 mOhms 3.5 mOhms 13 mOhms 7 mOhms 9 mOhms
Resistance - Post Trip (R1) (Max) 28 mOhms 9 mOhms 37 mOhms 19 mOhms 22 mOhms
Resistance - 25°C (Typ) - - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Grade - - - - -
Qualification - - - - -
Ratings - - - - -
Mounting Type User Defined User Defined User Defined User Defined User Defined
Size / Dimension 0.984" L x 0.413" W (25.00mm x 10.50mm) 2.520" L x 0.382" W (64.00mm x 9.70mm) 0.984" L x 0.283" W (25.00mm x 7.20mm) 0.984" L x 0.559" W (25.00mm x 14.20mm) 1.417" L x 0.283" W (36.00mm x 7.20mm)
Height - Seated (Max) - - - - -
Thickness (Max) 0.039" (1.00mm) - 0.039" (1.00mm) 0.039" (1.00mm) 0.039" (1.00mm)
Lead Spacing - - - - -

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