What are the key specifications of the SB1045L?

Key specs include a 45V repetitive peak reverse voltage, 10A average rectified current, 0.55V forward voltage drop at 10A, and a 175A non-repetitive peak surge current.

What should engineers review before using the SB1045L?

Engineers should review the thermal derating curves (Fig 1) and the forward voltage characteristics (Fig 3) to ensure the device operates within safe limits at the intended ambient temperature.

What are the sourcing risks for the SB1045L?

The component is currently active and widely available, with no significant supply chain risks reported.

SB1045L Datasheet, Alternatives & Specs | Microdiode Semiconductor (Shenzhen) Co., Ltd.

AI summary

The SB1045L is a 10A, 45V Schottky barrier rectifier in a TO-277 package, ideal for high-efficiency surface-mount power applications.

Best for

Power supply rectification
Consumer electronics
Industrial power modules

Avoid if

Applications exceeding 45V reverse voltage
Extreme high-temperature environments without adequate heat sinking

Check before use

Thermal dissipation requirements
PCB footprint compatibility

Key specifications

Max Reverse Voltage: 45 V
Forward Current: 10 A
Forward Voltage: 0.55 V
Package: TO-277

Compliance & Environment

RoHS: ROHS3 Compliant
REACH: REACH Unaffected
MSL: 1 (Unlimited)
ECCN: EAR99
HTSUS: 8542.39.0001

Application

Power SuppliesIndustrial Control

Datasheet

c9429d0b5d44d811673b4eeb9f149c46_2205131845_FUXINSEMI-SB1045L_C2844167.pdf

800 KB

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CAD Models

EDA symbol, PCB footprint, and 3D model for this component. Supported tools include Altium, KiCad, Eagle, and more.

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PCB Footprint

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3D Model

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Alternative components

Part	Details	Match
SB1045LGOODWORK	A direct cross-reference from another manufacturer with matching primary ratings; likely a pin-compatible replacement.	Needs validation

SP1045LJiangsu Changjing Electronics Technology Co., Ltd.	A strong pin-compatible candidate with matching ratings and a lower forward voltage for improved efficiency.	Needs validation
SP1545LJiangsu Changjing Electronics Technology Co., Ltd.	An upgrade path with higher current handling (15A) and better efficiency (lower Vf) in the same TO-277 package.	Needs validation
ST2045MDD(Microdiode Semiconductor)	An excellent upgrade from the same manufacturer with double the current rating and lower forward voltage for better efficiency.	Needs validation
SB10100LMDD	A functional alternative from the same manufacturer with a higher voltage rating but also a higher forward voltage.	Needs validation
ST20100LFUXINSEMI	A functional alternative in the same package with higher voltage/current ratings but also a higher forward voltage.	Needs validation

Design and risk insights

Questions & answers

The SB1045L is a Schottky barrier rectifier diode designed for surface-mount applications, capable of handling 10A of forward current and 45V of reverse voltage.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is the SB1045L?+×

What are the key specifications of the SB1045L?+×

What should engineers review before using the SB1045L?+×

What are the sourcing risks for the SB1045L?+×