B4S overview

B4S is a component documented by Vishay Siliconix. The PDF description identifies it as "Miniature Glass Passivated Single-Phase Surface Mount Bridge Rectifier 01-Feb-08." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.

Datasheet snapshot

  • Manufacturer: Vishay Siliconix
  • Part number: B4S
  • Category: IC
  • Datasheet length: 4 Pages

Key features noted in the PDF

  • UL recognition, file number E54214  Saves space on printed circuit boards  Ideal for automated placement  Middle surge current capability  Meets MSL level 1, per J-STD-020, LF.

Specifications and operating details

The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.

  • MECHANICAL DATA Case: TO-269AA (MBS) Epoxy meets UL 94V-0 flammability rating Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22-B102 E3 suffix for consumer grade, meets JESD 201 class 1A whisker test Polarity: As marke.
  • 150 °C TO-269AA (MBS) Note: MAXIMUM RATINGS (TA = 25 °C unless otherwise noted) PARAMETER SYMBOL B2S B4S B6S UNIT Device marking code B2 B4 B6 Maximum repetitive peak reverse voltage V RRM 200 400 600 V Maximum RMS voltage V RMS 140 280 42.
  • instantaneous forward voltage drop per diode 0.5 A V F 1.0 V Maximum DC reverse current at rated DC blocking voltage per diode TA = 25 °C TA = 125 °C IR 5.0 100 µA Typical junction capacitance per diode 4.0 V, 1 MHz C J 13 pF **Figure 1.
  • Typical Forward Voltage Characteristics Per Diode Figure 4.

Topics covered by the datasheet

The document includes sections related to:

  • FEATURES

Engineering review checklist

  • Confirm repetitive reverse voltage, average forward current, surge current and leakage at the intended temperature.
  • Check forward-voltage loss and reverse-recovery behavior at the actual current and switching frequency.
  • Review package thermal resistance, copper area, polarity marking and transient derating before layout release.

Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.

View the complete PDF and model record

Open the B4S datasheet and model details to review the complete PDF, document pages and available product information.

Source attribution

Adapted from the PDF associated with this DigiCamel model page.

Source model URL: https://www.digicamel.com/product.php?slug=b4s-vishay-siliconix