BY448 , BY458

www.vishay.com

Vishay Semiconductors

Rev. 1.8, 20-Feb-18

1

Document Number: 86006

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Standard Avalanche Sinterglass Diode

DESIGN SUPPORT TOOLS

MECHANICAL DATA

Case: SOD-57

Terminals: plated axial leads, solderable per MIL-STD-750,

method 2026

Polarity: color band denotes cathode end

Mounting position: any

Weight: approx. 369 mg

FEATURES

• Glass passivated junction

• Hermetically sealed package

• Material categorization:

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for definitions of compliance please see

www.vishay.com/doc?99912

APPLICATIONS

• High voltage rectification

• Efficiency diode in horizontal deflection circuits

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949539

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Available

Models

ORDERING INFORMATION (Example)

DEVICE NAME

ORDERING CODE

TAPED UNITS

MINIMUM ORDER QUANTITY

BY458

BY458TR

5000 per 10" tape and reel

25 000

BY458

BY458TAP

5000 per ammopack

25 000

PARTS TABLE

PART

TYPE DIFFERENTIATION

PACKAGE

BY448

SOD-57

BY458

SOD-57

PARAMETER

TEST CONDITION

PART

SYMBOL

VALUE

UNIT

Reverse voltage

See electrical characteristics

BY448

1500

V

BY458

1200

V

Peak forward surge current

30

A

Average forward current

2A

Junction temperature

140

°C

Storage temperature range

-55 to +175

°C

Non repetitive reverse avalanche energy

10

mJ

PARAMETER

TEST CONDITION

SYMBOL

VALUE

UNIT

Junction ambient

45

K/W

On PC board with spacing 25 mm

100

K/W