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BY448

Damper diode

Philips Electronics 

Philips Semiconductors

Damper diode

Product specification

BY448

FEATURES

• Glass passivated

• High maximum operating

temperature

• Low leakage current

• Excellent stability

• Available in ammo-pack.

APPLICATIONS

• Damper diode in high frequency

horizontal deflection circuits up to

16 kHz.

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.

2/3 pagek(Datasheet)

a

MAM047

Fig.1 Simplified outline (SOD57) and symbol.

LIMITING VALUES

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

SYMBOL

PARAMETER

CONDITIONS

VRSM

VRRM

VR

IFWM

IFRM

IFSM

Tstg

Tj

non-repetitive peak reverse voltage

repetitive peak reverse voltage

continuous reverse voltage

working peak forward current

repetitive peak forward current

non-repetitive peak forward current

storage temperature

junction temperature

Tamb = 50 °C; PCB mounting

(see Fig 4); see Fig.2

t = 10 ms half sinewave;

Tj = Tj max prior to surge;

VR = VRRMmax

MIN.

−

−

−

−

−

−

MAX.

1 650

1 650

1 500

4

UNIT

V

V

V

A

8A

30 A

−65

+175 °C

−65

+150 °C

ELECTRICAL CHARACTERISTICS

Tj = 25 °C; unless otherwise specified.

SYMBOL

PARAMETER

VF

forward voltage

IR

reverse current

trr

reverse recovery time

tfr

forward recovery time

CONDITIONS

IF = 3 A; Tj = Tj max; see Fig.3

IF = 3 A; see Fig.3

VR = VRmax; Tj = 150 °C

when switched from IF = 0.5 A to IR = 1 A;

measured at IR = 0.25 A; see Fig.6

when switched to IF = 4 A in 50 ns;

Tj = Tj max; see Fig.7

MAX.

1.45

1.60

150

1

UNIT

V

V

µA

µs

1 µs

1996 Sep 26

2

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