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SF-0603S300-2 Bourns SF-0603S300-2 is a 3A, 32VDC slow blow surface mount fuse in a 0603 package. It features a typical resistance of 0.016 Ω and a melting I²t of 0.21 A²s.
Mfr Part #:

SF-0603S300-2

Available from 1 distributors
Mfr Name: Bourns
Bourns
Bourns SF-0603S300-2 is a 3A, 32VDC slow blow surface mount fuse in a 0603 package. It features a typical resistance of 0.016 Ω and a melting I²t of 0.21 A²s.
Total Stock: 10,000 pcs
$ Price Range: $0.23 - $0.56

SF-0603S300-2 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
10,000 pcs
10000 pcs On Request 1 On Request On Request On Request On Request On Request

SF-0603S300-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity (Nominal @ 35 VAC)
Breaking Capacity @ Rated Voltage
California Proposition 65
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Industrial Grade
Length
Melting I²t
Mounting Type
Operating Temperature
Packaging Type
Resistance (Typical)
Response Time
Tape & Reel
Voltage Rating
Width

SF-0603S300-2 Description

Short technical summary and product information.

The Bourns SF-0603S300-2 is a slow blow thin film chip fuse from the SinglFuse SF-0603S series, designed for overcurrent protection in space-constrained applications. It is rated for 3 A continuous current at 32 VDC and offers a breaking capacity of 50 A at both 35 VAC and 32 VDC.

 

This fuse features a typical resistance of 0.016 Ω (measured at 25 °C with ≤10% rated current, tolerance ±25%) and a melting I²t of 0.21 A²s (calculated at 10× rated current). The slow blow response time allows it to tolerate brief inrush currents without nuisance opening.

 

The component is housed in a miniature 0603 (1608 metric) surface mount package measuring 1.60 mm × 0.80 mm × 0.45 mm, suitable for automated assembly. It is RoHS3 compliant and halogen free, and carries UL (cUL) recognition under file E198545.

SF-0603S300-2 Quick Information

Product Type: Surface Mount Fuse
Series: SF-0603S
Canonical Name: Bourns SinglFuse SF-0603S300-2 Slow Blow Surface Mount Fuse
Subcategory: Chip Fuse

SF-0603S300-2 Compliance

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

SF-0603S300-2 Estimated Pricing

Qty Low High
1+ $0.56 $0.56
10+ $0.52 $0.52
50+ $0.43 $0.43
100+ $0.40 $0.40
250+ $0.36 $0.36
500+ $0.33 $0.33
1,000+ $0.28 $0.28
2,500+ $0.27 $0.27
5,000+ $0.23 $0.23

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

SF-0603S300-2 Features

  • Rated for 3A continuous current at 32VDC.
  • Slow blow response for inrush tolerance.
  • Surface mount 0603 miniature footprint.
  • UL recognized under file E198545.
  • RoHS3 compliant and halogen free.

SF-0603S300-2 Applications

  • Overcurrent protection in portable electronics.
  • Power supply input protection circuits.
  • Battery management and charging circuits.
  • Industrial control and automation modules.
  • Consumer electronics and IoT devices.

SF-0603S300-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the SF-0603S300-2?

The SF-0603S300-2 has a nominal current rating of 3 A.

What is the voltage rating of this fuse?

The voltage rating is 32 VDC.

What is the breaking capacity of the SF-0603S300-2?

The breaking capacity is 50 A at both 35 VAC and 32 VDC.

Is this a fast-acting or slow blow fuse?

The SF-0603S300-2 is a slow blow (time-delay) fuse.

What package size is the SF-0603S300-2 available in?

It is available in a 0603 (1608 metric) surface mount package.

What is the typical resistance of this fuse?

The typical resistance is 0.016 Ω at 25 °C with ≤10% rated current, tolerance ±25%.

What is the operating temperature range?

The operating temperature range is -20°C to 105°C.

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