SRU1028-330Y Shielded SMD power inductor from Bourns, SRU1028 series, 33µH inductance, ±30% tolerance, 1.25A RMS current rating, 139mΩ DC resistance.
Mfr Part #:

SRU1028-330Y

Available from 3 distributors
Mfr Name: Bourns
Bourns
Shielded SMD power inductor from Bourns, SRU1028 series, 33µH inductance, ±30% tolerance, 1.25A RMS current rating, 139mΩ DC resistance.
Total Stock: 1,013 pcs
$ Price Range: $0.18

SRU1028-330Y Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
12 pcs
12 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1 pcs
1 pcs On Request 1 On Request On Request On Request On Request On Request

SRU1028-330Y Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Current Rating (Amps)
DC Resistance (DCR)
Frequency
Height
Inductance
Length
Material
Mounting Type
Operating Temperature
Prop 65
Q @ Freq
Shielding
Standard Package Quantity
Storage Temperature
Tape & Reel
Terminal Finish
Tolerance
Type
Width
Wire Material

SRU1028-330Y Description

Short technical summary and product information.

The Bourns SRU1028-330Y is a shielded SMD power inductor from the SRU1028 series, featuring a 33µH inductance with ±30% tolerance. It offers a high current rating of 1.25A RMS and a saturation current of 1.2A typical, with a low DC resistance of 139mΩ for efficient power handling. The inductor is constructed with a ferrite drum core and enameled copper wire, with silver/nickel/tin terminals for reliable solder connections. Its shielded design minimizes magnetic interference, making it suitable for power supply applications. The component operates over a temperature range of -40°C to +125°C including temperature rise, and withstands soldering heat up to +260°C for 10 seconds. The package measures 10.0mm x 10.0mm with a height of 2.8mm, and is supplied in tape and reel packaging with 1000 units per reel.

 

This inductor is designed for input/output filtering in DC/DC converters and power supplies for portable communication equipment, camcorders, and LCD TVs. The self-resonant frequency is a minimum of 12MHz, and the Q factor is 24 at 2.52MHz, indicating good performance in high-frequency applications. The part is RoHS compliant and has an MSL rating of 1 (unlimited).

SRU1028-330Y Quick Information

Product Type: Shielded SMD Power Inductor
Series: SRU1028
Canonical Name: Shielded SMD Power Inductor, 33µH, ±30%, 1.25A, 139mΩ, Ferrite Core
Subcategory: Shielded Power Inductor

SRU1028-330Y Compliance

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

SRU1028-330Y Estimated Pricing

Qty Low High
1+ $0.18 $0.18

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

SRU1028-330Y Features

  • 33µH inductance with ±30% tolerance.
  • 1.25A RMS current rating maximum.
  • 139mΩ low DC resistance.
  • Shielded ferrite core construction.
  • Surface mount package 10x10mm.

SRU1028-330Y Applications

  • Input/output filtering in DC/DC converters.
  • Power supplies for portable communication equipment.
  • Power supplies for camcorders and LCD TVs.
  • General purpose power inductor applications.

SRU1028-330Y FAQs

7 frequently asked questions generated from this part’s specifications.
What is the inductance of the SRU1028-330Y?

The inductance is 33 µH with a tolerance of ±30%, measured at 100 kHz.

What is the DC resistance of this inductor?

The DC resistance is 139 mΩ.

What is the current rating of the SRU1028-330Y?

The RMS current rating is 1.25 A maximum, and the typical saturation current is 1.2 A.

What is the self-resonant frequency?

The minimum self-resonant frequency is 12 MHz.

What package does this inductor come in?

It is a surface mount inductor in a Nonstandard package measuring 10.0 mm x 10.0 mm with a height of 2.8 mm, supplied in tape and reel with 1000 units per reel.

Is the SRU1028-330Y RoHS compliant?

Yes, the component is RoHS compliant as stated in the datasheet.

What is the moisture sensitivity level?

The MSL rating is Level 1 (Unlimited).

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