B340LB-E3/52T Vishay B340LB-E3/52T is a 40V, 3A surface-mount Schottky rectifier in a DO-214AA (SMB) package. It features very low forward voltage drop and high surge capability.
Mfr Part #:

B340LB-E3/52T

Available from 1 distributors
Mfr Name: Vishay Dale
Vishay Dale
Vishay B340LB-E3/52T is a 40V, 3A surface-mount Schottky rectifier in a DO-214AA (SMB) package. It features very low forward voltage drop and high surge capability.
Total Stock: 1,770 pcs
$ Price Range: $0.16 - $0.83

B340LB-E3/52T Available from 1 distributor

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B340LB-E3/52T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Average Forward Current
Current
DC Blocking Voltage
Device Marking
IR (Maximum @ @ rated VR, TJ=25 °C)
IR (Typical/Maximum @ @ rated VR, TJ = 125 °C)
Lead Style
Molding Compound Flammability
Mounting Type
Operating Temperature
Peak Forward Surge Current
Polarity
RMS Voltage
Repetitive Peak Reverse Voltage
Speed
Storage Temperature
Storage Temperature Range
Supplier Device Package
Tape & Reel
Technology
Termination Finish
VF (Typical/Maximum @ IF=3.0 A, TJ=125 °C)
Voltage
Voltage Rate of Change

B340LB-E3/52T Description

Short technical summary and product information.

The Vishay B340LB-E3/52T is a high current density surface-mount Schottky rectifier designed for low voltage, high frequency applications. It has a maximum repetitive peak reverse voltage of 40V and an average forward current rating of 3A. The device offers a very low forward voltage drop of 0.43V typical at 3A and 25°C, and 0.34V typical at 125°C, enabling high efficiency and low power loss.

 

This rectifier includes a guardring for overvoltage protection and can handle a peak forward surge current of 100A (8.3 ms single half sine-wave). It is housed in a SMB (DO-214AA) surface-mount package with matte tin plated terminals and a color band cathode marking. The molding compound meets UL 94 V-0 flammability rating.

 

The B340LB-E3/52T is RoHS-compliant (E3 suffix) and meets MSL level 1 per J-STD-020 with a maximum peak reflow temperature of 260°C. It is suitable for use in DC/DC converters, freewheeling diodes, and polarity protection circuits.

B340LB-E3/52T Quick Information

Product Type: Schottky Rectifier Diode
Canonical Name: Vishay General Semiconductor B340LB-E3/52T Schottky Rectifier, 40V, 3A, DO-214AA (SMB)
Subcategory: Single Diodes

B340LB-E3/52T Compliance

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

B340LB-E3/52T Estimated Pricing

Qty Low High
1+ $0.83 $0.83
10+ $0.52 $0.52
100+ $0.34 $0.34
500+ $0.21 $0.21
750+ $0.18 $0.18
2,250+ $0.17 $0.17
4,500+ $0.16 $0.16

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

B340LB-E3/52T Features

  • Very low forward voltage drop of 0.43V.
  • High surge capability of 100A.
  • Guardring for overvoltage protection.
  • Surface-mount SMB (DO-214AA) package.
  • RoHS-compliant and MSL level 1.

B340LB-E3/52T Applications

  • Use in low voltage DC/DC converters.
  • Ideal for freewheeling diode applications.
  • Suitable for polarity protection circuits.
  • Used in high frequency inverters.

B340LB-E3/52T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive peak reverse voltage (VRRM) of the B340LB-E3/52T?

The maximum repetitive peak reverse voltage (VRRM) is 40V.

What is the average forward current rating of this Schottky rectifier?

The maximum average forward rectified current (IF(AV)) is 3.0A at lead temperature.

What is the forward voltage drop at 3A?

At 3A and 25°C, the typical forward voltage is 0.43V with a maximum of 0.45V. At 125°C, the typical forward voltage is 0.34V with a maximum of 0.38V.

What package does the B340LB-E3/52T come in?

It comes in a surface-mount SMB (DO-214AA) package.

Is the B340LB-E3/52T RoHS compliant?

Yes, the E3 suffix indicates RoHS-compliant, commercial grade.

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