BY448 datasheet(2/7 Pages) PHILIPS

2 / 7 page

1996 Sep 26

Philips Semiconductors

Product speciﬁcation

Damper diode

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.

Fig.1 Simplified outline (SOD57) and symbol.

2/3 page (Datasheet)

MAM047

LIMITING VALUES

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

ELECTRICAL CHARACTERISTICS

Tj =25 °C; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

VRSM

non-repetitive peak reverse voltage

−

1650

VRRM

repetitive peak reverse voltage

−

1650

continuous reverse voltage

−

1500

IFWM

working peak forward current

Tamb =50 °C; PCB mounting

(see Fig 4); see Fig.2

−

IFRM

repetitive peak forward current

−

IFSM

non-repetitive peak forward current

t = 10 ms half sinewave;

Tj =Tj max prior to surge;

VR =VRRMmax

−

Tstg

storage temperature

−65

+175

°C

junction temperature

−65

+150

°C

SYMBOL

PARAMETER

CONDITIONS

MAX.

UNIT

forward voltage

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

1.45

IF = 3 A; see Fig.3

1.60

reverse current

VR =VRmax; Tj = 150 °C

150

µA

trr

reverse recovery time

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

measured at IR = 0.25 A; see Fig.6

µs

tfr

forward recovery time

when switched to IF = 4 A in 50 ns;

Tj =Tj max; see Fig.7

µs

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