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30R400U The Littelfuse 30R400U is a PTC Resettable Fuse designed for circuit protection. It features a 4A hold current and 30VDC maximum voltage rating.
Mfr Part #:

30R400U

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse 30R400U is a PTC Resettable Fuse designed for circuit protection. It features a 4A hold current and 30VDC maximum voltage rating.
✓ Total Stock: 80 pcs
$ Price Range: $0.05

30R400U Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
80 pcs
On Request
80 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

30R400U Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current Rating (Max)
Lead Spacing
Lead Style
Mounting Style
Resistance
Storage Temperature
Termination Style
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30R400U Description

Short technical summary and product information.

The Littelfuse 30R400U is a PTC (Positive Temperature Coefficient) resettable fuse, also known as a Polyfuse, designed for overcurrent protection applications. This component features a hold current of 4A and a maximum voltage rating of 30VDC.

 

With a trip current of 8A and a maximum current rating of 40A, the 30R400U offers robust protection against fault conditions. Its resistance is typically 50 mOhms, and it operates within a temperature range of -40C to +85C.

 

The fuse is designed for PCB mounting with radial leads, facilitating easy integration into circuit designs. The packaging is supplied in bulk.

 

This resettable fuse provides a cost-effective solution for protecting electronic circuits from excessive current, automatically resetting once the fault condition is removed.

30R400U Quick Information

Product Type: PTC Resettable Fuse
Series: 30R
Canonical Name: Littelfuse 30R400U PTC Resettable Fuse
Subcategory: PTC Resettable Fuses

30R400U Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

30R400U Estimated Pricing

Qty Low High
1+ $0.05 $0.05

Estimated market price range - modelled values for guidance only, not live distributor offers.

30R400U Features

  • 4A hold current for circuit protection.
  • 30VDC maximum voltage rating.
  • Radial leads for PCB mounting.
  • Wide operating temperature range.
  • Resettable overcurrent protection.

30R400U Applications

  • Protects electronic circuits from overcurrent.
  • Suitable for power supply applications.
  • Used in automotive electronics.
  • Ideal for consumer electronics.

30R400U FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the 30R400U?

4 A.

What is the trip current?

8 A.

What is the maximum voltage rating?

30 VDC.

What is the maximum current rating?

40 A.

What is the resistance of the 30R400U?

50 mOhms.

What is the operating temperature range?

-40°C to +85°C.

What is the mounting style?

PCB Mount.

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