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SBR440SBQ

4.0A SBR Surface-Mount Super Barrier Rectifier

Datasheet

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Description

The SBR440SBQ is a 4A 40V single rectifier packaged in the low-profile SMB package. Providing low VF and excellent high temperature stability this device is ideal for use in general rectification applications such as: boost diodes, blocking diodes, and recirculating diodes.

Feature(s)

Patented SBR® technology provides an avalanche capability five times larger than Schottky diodes ensuring more rugged and reliable end applications.
Lower reverse leakage ensuring greater stability at higher temperatures.
Low-forward voltage (V_F) minimizes conduction losses and improving efficiency.
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
The SBR440SBQ is suitable for automotive applications requiring specific change control; this part is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. https://www.diodes.com/quality/product-definitions/

Application(s)

Boost diodes
Blocking diodes
Recirculating diodes

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)	Automotive
AEC Qualified	Yes
Configuration	Single
Maximum Average Rectified Current IO (A)	4
Peak Repetitive Reverse Voltage VRRM (V)	40
Peak Forward Surge Current IFSM (A)	100
Forward VoltageDrop V_F(V)	0.5
@ IF (A)	4
Maximum Reverse Current IR (μA)	150
@ VR (V)	40

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products