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049403.5NR The Littelfuse 049403.5NR is a surface mount fast blow fuse rated at 3.5A and 32V, housed in a 0603 package. It is designed for board level overcurrent protection.
Mfr Part #:

049403.5NR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse 049403.5NR is a surface mount fast blow fuse rated at 3.5A and 32V, housed in a 0603 package. It is designed for board level overcurrent protection.
Total Stock: 830,000 pcs
$ Price Range: $0.53 - $1.33

049403.5NR Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
830,000 pcs
830000 pcs On Request 1 On Request On Request 15+ On Request On Request

049403.5NR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Approval Agency
Automotive Grade
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Industrial Grade
Length
Medical Grade
Melting I²t
Military Grade
Mounting Type
Operating Temperature
Response Time
SVHC Present
Tape & Reel
Voltage Rating
Width

049403.5NR Description

Short technical summary and product information.

The Littelfuse 049403.5NR is a surface mount fuse designed for overcurrent protection in compact electronic circuits. With a current rating of 3.5A and voltage rating of 32V, this fast blow fuse provides rapid response to overcurrent conditions.

 

It features a breaking capacity of 35A and a melting I²t of 0.4306 A²s, ensuring reliable performance. The operating temperature range spans -50°C to 90°C, suitable for harsh environments. The 0603 (1608 Metric) package measures 1.60mm x 0.81mm x 0.31mm, ideal for space-constrained designs.

 

Key approvals include CSA and UR, confirming its safety and reliability. This fuse is commonly used in consumer electronics, industrial controls, and automotive systems requiring reliable circuit protection.

049403.5NR Quick Information

Product Type: Board Mount Fuse
Series: 494 Series
Canonical Name: Fuse Board Mount 3.5A 32V Fast Blow 0603
Subcategory: Fast Blow SMD Fuse

049403.5NR Compliance

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

049403.5NR Estimated Pricing

Qty Low High
1+ $1.33 $1.33
5+ $1.19 $1.19
10+ $1.11 $1.11
50+ $0.92 $0.92
100+ $0.78 $0.78
250+ $0.75 $0.75
500+ $0.64 $0.64
1,000+ $0.59 $0.59
2,500+ $0.53 $0.53
5,000+ $0.53 $0.53

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

049403.5NR Features

  • Fast blow response for overcurrent protection.
  • Rated for 3.5A at 32V AC/DC.
  • Surface mount 0603 package.
  • Approved by CSA and UR agencies.
  • Wide operating temperature range -50°C to 90°C.

049403.5NR Applications

  • Used in consumer electronics power supplies.
  • Ideal for battery protection circuits.
  • Suitable for industrial control systems.
  • Applied in automotive electronics.

049403.5NR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 049403.5NR fuse?

The current rating is 3.5A.

What is the voltage rating of the 049403.5NR?

The voltage rating is 32V.

What is the breaking capacity of the 049403.5NR fuse?

The breaking capacity is 35A.

What is the response time of the 049403.5NR fuse?

The response time is Fast Blow.

What package type does the 049403.5NR come in?

The package type is 0603 (1608 Metric).

What is the operating temperature range of the 049403.5NR?

The operating temperature range is -50°C to 90°C.

What approvals does the 049403.5NR fuse have?

It has CSA and UR approvals.

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