RATING AND CHARACTERISTIC CURVES (

)

CZRA4728B-HF Thru. CZRA1330B-HF

Fig.4 - Maximum Surge Power

Lead Temperature,

(°C)

0

Fig.1 - Power

Derating Curve

Temperature

0

0.2

0.6

1.4

25

75

100

175

0.4

1.2

50

125

150

1.0

0.8

Zener Voltage

(V)

, Vz

100

10

1

100

10

Range

Lead Length to Heatsink, L (inches)

0

0

25

50

75

150

0.3

0.2

0.4

0.7

0.6

0.1

0.5

175

100

125

0.8 0.9

1

Pulse Width, PW (s)

1

1

10

100

1000

0.1

0.01

10

100

Fig.2 - Temperature Coefficients

v.s. Zener Voltage

5% Duty Cycle

10% Duty Cycle

20% Duty Cycle

11V-91V Non-Repetitive

Rectangular Waveform TJ=25°C

Prior to Initial Pulse

SMD Zener Diode

Page 2

REV: A

QW-JZ009

Comchip Technology CO., LTD.

Company reserves the right to improve product design , functions and reliability without notice.