1998 Jun 25

2

Philips Semiconductors

Product specification

Damper diodes

BY558; BY578

FEATURES

• Glass passivated

• High maximum operating

temperature

• Low leakage current

• Excellent stability

• Also available with preformed leads

for easy insertion

• Designed to withstand transients

up to 1700 V.

APPLICATIONS

• For use in multi-sync monitor

horizontal deflection circuits

DESCRIPTION

Rugged glass package, using a high

temperature alloyed construction.

This package is hermetically sealed

and fatigue free as coefficients of

expansion of all used parts are

matched.

Fig.1 Simplified outline (SOD115) and symbol.

handbook, halfpage

ka

MAM384

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

non-repetitive peak reverse voltage

BY558

−

1500

V

BY578

−

1700

V

repetitive peak reverse voltage

BY558

−

1500

V

BY578

−

1700

V

continuous reverse voltage

−

1400

V

average forward current

PCB mounting; averaged over any

20 ms period; see Fig.4

−

2.5 A

repetitive peak forward current

−

12

A

non-repetitive peak forward current

t = 10 ms half sine wave;

−

80

A

storage temperature

−65

+175

°C

junction temperature

−65

+150

°C