BY448 / BY458

Document Number 86006

Rev. 1.6, 14-Apr-05

Vishay Semiconductors

www.vishay.com

1

949539

Standard Avalanche Sinterglass Diode

Features

• Glass passivated junction

• Hermetically sealed package

• Lead (Pb)-free component

• Component in accordance to RoHS 2002/95/EC

and WEEE 2002/96/EC

Applications

High voltage rectification diode

Efficiency diode in horizontal deflection circuits

Mechanical Data

Case: SOD-57 Sintered glass case

Terminals: Plated axial leads, solderable per

MIL-STD-750, Method 2026

Polarity: Color band denotes cathode end

Mounting Position: Any

Weight: approx. 369 mg

Parts Table

Absolute Maximum Ratings

Maximum Thermal Resistance

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

e2