VISHAY B240A-E3

Mfr. Part

B240A-E3

Manufacturer

Electro-Films (EFI) / Vishay. Y-IC is a quality distributor of Vishay (EFI) products. We supply genuine parts fast and support you with the best products and services.

Detailed Description

B240A-E3 is a surface-mount Schottky barrier rectifier from Vishay. It is a 2 A, 40 V device in the DO-214AC (SMA) package. It offers low forward voltage drop, fast switching, and high efficiency for power rectification and protection. Note: Although your data tags it under “Integrated Circuits,” this part is a Schottky rectifier diode (commonly categorized under Diodes/Rectifiers). Stock available: 18,000 units.

Key Features

Schottky technology for fast switching and low power loss

40 V repetitive peak reverse voltage (VRRM)

Up to 2 A average rectified current (IF(AV)) with proper PCB heat-sinking

Low forward voltage drop (Vf) for better efficiency

High surge capability for transient events

Surface-mount DO-214AC (SMA) package, compact footprint

RoHS compliant, lead-free; “E3” suffix indicates matte tin plating

Key Advantages

Better efficiency and lower heat vs. standard silicon rectifiers

Small SMA footprint saves board space and simplifies assembly

Strong surge handling for reliable power applications

Clear polarity marking (cathode band) reduces assembly errors

Backed by Vishay’s reliability and broad market adoption

Easy second sourcing with widely available equivalents in the same rating

Packaging

Type: DO-214AC (SMA) surface-mount rectifier package

Materials: Molded epoxy encapsulation (UL 94V-0), matte tin plated terminations, Schottky metal–semiconductor junction

Size: Typical SMA outline ~4.3 mm x ~2.5 mm x ~2.0 mm (compact SMD form factor)

Pin configuration: 2 terminals (Anode and Cathode); cathode identified by a polarity band on the body

Thermal characteristics: Designed to dissipate heat through PCB copper; use adequate pad size for cooling; typical junction temperature capability up to 150°C (consult datasheet for exact limits)

Electrical properties (typical for this class; see datasheet for exact values):

- VRRM: 40 V

- IF(AV): 2 A (with proper thermal design)

- Forward voltage drop: ~0.5–0.55 V at 2 A (typical)

- Surge current: Tens of amperes for short durations (e.g., 8.3 ms half-sine)

- Reverse leakage: Low at 25°C, increases with temperature (characteristic of Schottky diodes)

Lifecycle

Current status: Active and in ongoing production by Vishay (EFI) as of the latest catalogs. Not nearing discontinuation.

Equivalent or alternative models available (2 A, 40 V Schottky, SMA or close form factors):

- Diodes Incorporated B240A-13-F (SMA, 2 A, 40 V)

- onsemi MBRS240 series (SMA/SMB variants, 2 A, 40 V; check exact package)

- Micro Commercial Components (MCC) B240A (SMA, 2 A, 40 V)

- Taiwan Semiconductor B240A (SMA, 2 A, 40 V)

- Central Semiconductor CDBA240 (SMA, 2 A, 40 V)

- Vishay SS24 (SMA, 2 A, 40 V) as an in-family alternative

If you need strict pin-for-pin drop-in compatibility, pad sizes, or verified parametric equivalence, please contact our sales team via the Y-IC website for guidance and cross-checking.

Key Application Areas

DC/DC converter rectification and output stage

Freewheeling diode for inductive loads and motors

OR-ing and power path selection

Polarity and reverse battery protection

Switching power supplies (SMPS), chargers, LED drivers

General high-efficiency rectification in compact designs

Datasheet

The most authoritative and up-to-date datasheet for B240A-E3 is available on our website. We recommend downloading it directly from this page to get exact electrical limits, thermal data, test conditions, and recommended land patterns.

Request for Quotation Now

Get a Quote today on Y-IC. Learn More and lock in pricing while stock lasts. Limited Time Offer—secure your 18,000 units now and accelerate your build.