B340AF/B345AF

Document number: DS38974 Rev. 6 - 2

1 of 5

www.diodes.com

April 2022

© 2022 Copyright Diodes Incorporated. All Rights Reserved.

B340AF/B345AF

3.0A SCHOTTKY BARRIER RECTIFIER

Product Summary

B340AF/B345AF

Part

Number

VRRM (V)

IO (A)

VF(MAX) (V)

@ +25°C

IR(MAX) (mA)

@ +25°C

B340AF

40

3

0.50

0.20

B345AF

45

3

0.50

0.30

Description and Applications

The

DIODES™ B340AF is a 3A 40V and DIODES™ B345AF is a 3A

45V single rectifier packaged in the low profile SMAF package.

Providing low VF and excellent reverse leakage stability at high

temperatures, this device is ideal for use in general rectification

applications such as:



Boost diodes



Blocking diodes



Recirculating diodes

Features and Benefits



Reduced Low Forward Voltage Drop (VF); Better Efficiency and

Cooler Operation



Reduced

High-temperature

Reverse

Leakage;

Increased

Reliability

Against

Thermal

Runaway

Failure

in

High

Temperature Operation.



Lead-Free Finish; RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)



For automotive applications requiring specific change

control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP

capable, and manufactured in IATF 16949 certified facilities),

please contact us or your local Diodes representative.

https://www.diodes.com/quality/product-definitions/

Mechanical Data



Package: SMAF



Package Material: M

olded Plastic, “Green” Molding Compound.

UL Flammability Classification Rating 94V-0



Moisture Sensitivity: Level 1 per J-STD-020



Terminals: Finish - Matte Tin Annealed over Copper Leadframe.

Solderable per MIL-STD-202, Method 208



Polarity: Cathode Band



Weight: 0.036 grams (Approximate)

Ordering Information (Note 4)

Part Number

Package

Packing

Qty.

Carrier

B340AF-13

SMAF

10,000

Tape & Reel

B345AF-13

SMAF

10,000

Tape & Reel

Notes:

1. EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. All applicable RoHS exemptions applied.

2. See https://www.diodes.com/quality/lead-free/

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.

Marking Information

SMAF

G r e e n

B340AF = Product Type Marking Code

= Manufacturers’ Code Marking

YWW = Date Code Marking

Y = Last Digit of Year (ex: 2 for 2022)

WW = Week Code (01 to 53)

Top View

SMAF

B345AF = Product Type Marking Code

= Manufacturers’ Code Marking

YWW = Date Code Marking

Y = Last Digit of Year (ex: 2 for 2022)

WW = Week Code (01 to 53)

SMAF

Cathode

Anode