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    SENICO ELECTRONICS INTL CO., LIMITED

    Littelfuse Inc. LR4-730F

    Part No.:
    LR4-730F
    Manufacturer:
    Littelfuse Inc.
    Category:
    PTC Resettable Fuses
    Package:
    Strap
    Datasheet:
    SENICO ELECTRONICS INTL CO., LIMITEDLR4-730F.pdf
    Description:
    PTC RESET FUSE 20V 7.3A STRAP
    Quantity:

    Unit Price:$0

    Ext Price:$0

    Payment:
    Payment
    Shipping:
    Shipping

    Inventory:5,403

    Send us your inquiry,we will respond immediately.

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    In Stock:5,403

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    Product details

    • Specifications
    • FAQ
    • Comparison
    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):
    7.3 A
    Current - Trip (It):
    14.1 A
    Current - Max:
    100 A
    Time to Trip:
    5 s
    Resistance - Initial (Ri) (Min):
    6 mOhms
    Resistance - Post Trip (R1) (Max):
    15 mOhms
    Resistance - 25°C (Typ):
    -
    Operating Temperature:
    -40°C ~ 85°C
    Grade:
    -
    Qualification:
    -
    Ratings:
    -
    Mounting Type:
    User Defined
    Size / Dimension:
    1.106" L x 0.559" W (28.10mm x 14.20mm)
    Height - Seated (Max):
    -
    Thickness (Max):
    0.039" (1.00mm)
    Lead Spacing:
    -
    Category:
    PTC Resettable Fuses

    1. How can I order LR4-730F from SENICO ELECTRONICS INTL CO., LIMITED?

    Use the RFQ form to send the exact part number, required quantity and any packaging, date-code or delivery requirements. Review the written quotation and confirm the order terms before purchasing. If online purchasing is available for this item, check the displayed quantity and price before proceeding to checkout.

    2. What sourcing and quality information should I confirm for LR4-730F?

    Ask which source and traceability documents are available for the offered lot, and specify any inspection or testing requirements in your RFQ. Confirm the agreed evidence and acceptance criteria in writing before ordering; a product listing alone does not establish manufacturer authorization or lot-specific test results.

    3. How should I confirm the price and availability of LR4-730F?

    Price and available quantity can change. Check the quantity tier and currency of any displayed price, and confirm the current quantity, unit price, lead time and quotation validity before placing an order. An RFQ or Negotiable listing requires a quotation rather than indicating a fixed selling price.

    4. What payment terms apply to my order?

    Confirm the accepted payment method, payment currency and any handling fees in the quotation or order confirmation. Verify the payment instructions with your sales contact before sending payment.

    5. How should I arrange shipping?

    Provide the delivery destination when requesting a quotation. Confirm the available shipping method, freight charges, estimated dispatch date and delivery terms before ordering. Request the shipment tracking details from your sales contact when they are available.

    6. How can I request a return or replacement of LR4-730F?

    Contact your sales representative with the order number, part number, quantity and a description of the issue, including photographs where relevant. Check the applicable return conditions and time limits for your order, and obtain return authorization and shipping instructions before sending any goods back.

    7. How can I request the datasheet or technical information for LR4-730F?

    Use the datasheet link on the product page when available, or contact us with the exact manufacturer and part number. Check the manufacturer's current datasheet and package documentation for electrical limits, pin assignments and application requirements before design-in.

    Image LR4-450F by Littelfuse Inc., Strap, SENICO Electronics LR4-1300SSF by Littelfuse Inc., Strap, SENICO Electronics LR4-380F by Littelfuse Inc., Strap, SENICO Electronics LR4-600F by Littelfuse Inc., Strap, SENICO Electronics LR4-550F by Littelfuse Inc., Strap, SENICO Electronics
    Part Number 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 - - - - -

    LR4-730F Relevant information

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