MBR2045MFST1G Schottky barrier rectifier rated for 45V reverse voltage and 20A average forward current. Surface mount package with low forward voltage drop.
Mfr Part #:

MBR2045MFST1G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
Schottky barrier rectifier rated for 45V reverse voltage and 20A average forward current. Surface mount package with low forward voltage drop.
Total Stock: 18,147 pcs
$ Price Range: $0.88 - $2.06

MBR2045MFST1G 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
15,000 pcs
15000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,147 pcs
3147 pcs On Request 1 On Request On Request On Request On Request On Request

MBR2045MFST1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Case Code
Current
ESD Rating (Human Body Model)
ESD Rating - Machine Model
Flammability Rating
Halogen Free
Lead Finish
Lead Style
Maximum Junction Temperature (TJ)
Mounting Type
Non-Repetitive Peak Surge Current (IFSM)
Operating Temperature
Peak Repetitive Forward Current (IFRM)
Reverse Voltage (Vrrm)
Speed
Standard Package Quantity
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Technology
Unclamped Inductive Switching Energy (EAS)
Voltage

MBR2045MFST1G Description

Short technical summary and product information.

The MBR2045MFST1G is a Schottky barrier rectifier from On Semiconductor designed for switch mode power supply applications. It features a maximum repetitive reverse voltage of 45V and an average forward current of 20A at a case temperature of 130°C. The forward voltage drop is typically 610 mV at 30A, enabling high efficiency. The device offers a non-repetitive peak surge current rating of 400A and an unclamped inductive switching energy of 150 mJ, making it robust for inductive load switching.

 

Key features include low power loss, guardring for stress protection, and a wettable flanks option for improved solder joint inspection. The device is housed in an 8-PowerTDFN package with 5 flat leads (SO-8FL, case 488AA), suitable for surface mount assembly. It is Pb-Free, halogen free/BFR free, and RoHS compliant, with MSL 1 moisture sensitivity.

 

This rectifier is suitable for output rectification in compact portable consumer electronics and as a freewheeling diode with inductive loads. Note that the datasheet indicates these devices are discontinued and not recommended for new designs. Automotive-qualified alternatives are available under the NRVB prefix (e.g., NRVB2045MFST1G).

MBR2045MFST1G Quick Information

Product Type: Schottky Rectifier
Series: MBR2045MFS
Canonical Name: MBR2045MFST1G Schottky Rectifier, 45V, 20A, Surface Mount
Subcategory: Single Diodes

MBR2045MFST1G Compliance

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

MBR2045MFST1G Estimated Pricing

Qty Low High
1+ $2.06 $2.06
10+ $1.32 $1.32
100+ $0.88 $0.88
1,500+ $0.88 $0.88

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

MBR2045MFST1G Features

  • Schottky barrier for low forward voltage drop.
  • Rated for 45V reverse voltage and 20A forward current.
  • High surge capability of 400A.
  • Surface mount SO-8FL package with flat leads.
  • RoHS compliant and halogen free.

MBR2045MFST1G Applications

  • Output rectification in portable consumer electronics.
  • Freewheeling diode for inductive loads.
  • Switch mode power supply applications.

MBR2045MFST1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage (VRRM) of the MBR2045MFST1G?

45V.

What is the average forward current rating?

20A at case temperature 130°C.

What is the forward voltage drop?

Maximum 610 mV at 30A forward current.

What package does the MBR2045MFST1G come in?

8-PowerTDFN, 5 Leads (SO-8 Flat Lead), also known as 5-DFN (5x6) (8-SOFL).

What is the non-repetitive peak surge current rating?

400A (half-wave, 60 Hz).

What is the unclamped inductive switching energy rating?

150 mJ (10 mH inductor, non-repetitive).

What is the operating junction temperature range?

-55°C to 150°C.

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