SRU8043-3R9Y The Bourns SRU8043-3R9Y is a shielded SMD power inductor featuring 3.9µH inductance and a current rating of 4.8A. It operates within a temperature range of -40°C to 125°C.
Mfr Part #:

SRU8043-3R9Y

Available from 2 distributors
Mfr Name: Bourns
Bourns
The Bourns SRU8043-3R9Y is a shielded SMD power inductor featuring 3.9µH inductance and a current rating of 4.8A. It operates within a temperature range of -40°C to 125°C.
Total Stock: 2,509 pcs
$ Price Range: $0.18

SRU8043-3R9Y Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,406 pcs
2406 pcs On Request 1 On Request On Request 13+ On Request On Request
Non-Authorised Inventory information
103 pcs
103 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

SRU8043-3R9Y Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Q @ Freq
Saturation Current
Self Resonant Frequency
Shielding
Tolerance
Type
Width

SRU8043-3R9Y Description

Short technical summary and product information.

The Bourns SRU8043-3R9Y is a shielded, surface-mount power inductor from the SRU8043 series. It offers an inductance value of 3.9 µH with a tolerance of ±30% and a typical Q factor of 15 at 7.96 MHz. This inductor is designed for applications requiring stable power delivery, with a saturation current of 4 A and a rated current of 4.8 A.

 

Constructed with a ferrite drum core and wirewound technology, the SRU8043-3R9Y features a low DC resistance of 14.6 mΩ. It has a minimum self-resonant frequency of 42 MHz. The component is housed in a compact package suitable for surface mounting, with dimensions of 8.00mm x 8.00mm and a height of 4.3mm.

 

This inductor is suitable for input/output of DC/DC converters and power supplies for portable communication equipment, camcorders, and LCD TVs. It operates within a temperature range of -40°C to 125°C and is supplied in reels of 1000 pieces.

SRU8043-3R9Y Quick Information

Product Type: Fixed Inductor
Series: SRU8043
Canonical Name: Bourns SRU8043 Series Shielded SMD Power Inductor
Subcategory: SMD Power Inductor

SRU8043-3R9Y Compliance

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

SRU8043-3R9Y Estimated Pricing

Qty Low High
1+ $0.18 $0.18

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

SRU8043-3R9Y Features

  • Shielded SMD power inductor construction.
  • 3.9µH inductance with ±30% tolerance.
  • Rated for 4.8A current with 4A saturation.
  • Low 14.6mΩ DC resistance.
  • Compact 8x8x4.3mm surface mount package.

SRU8043-3R9Y Applications

  • Used in DC-DC converter output filtering.
  • Suitable for power supply inductor applications.
  • Ideal for low-profile portable electronics.
  • Employed in EMI filtering circuits.

SRU8043-3R9Y FAQs

6 frequently asked questions generated from this part’s specifications.
What is the inductance of the SRU8043-3R9Y?

The inductance of the SRU8043-3R9Y is 3.9 µH at 100 KHz.

What is the current rating for the SRU8043-3R9Y?

The current rating for the SRU8043-3R9Y is 4.8 A.

What is the DC resistance (DCR) of this inductor?

The DC resistance (DCR) of the SRU8043-3R9Y is 14.6 mΩ.

What is the operating temperature range for the SRU8043-3R9Y?

The operating temperature range for the SRU8043-3R9Y is -40°C to 125°C.

What type of core does the SRU8043-3R9Y use?

The SRU8043-3R9Y uses a ferrite drum core.

How is the SRU8043-3R9Y mounted?

The SRU8043-3R9Y is designed for surface mount installation.

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