SMD Type
Zener Diodes
BZT55B2V4 ~ BZT55B75
Diodes
■ Features
● Very sharp reverse characteristic
● Low reverse current level
● Very high stability
● Low noise
LL-34
Unit: mm
2.64REF
0.50
0.35
1.50
1.30
3.60
3.30
CATHODE BAND
■ Absolute Maximum Ratings Ta = 25℃
Parameter
Forward voltage @ IF=200mA
Zener current
Power Dissipation @ RθJA≤300 ℃/W
Thermal Resistance Junction to Ambient
Junction Temperature
Storage Temperature range
Symbol
VF
IZ
PD
RθJA
TJ
Tstg
Rating
1.5
Pv/Vz
500
500
175
-65 to 175
Unit
V
mA
mW
℃/W
℃
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SMD Type
Diodes
Zener Diodes
BZT55B2V4 ~ BZT55B75
■ Typical Characterisitics
100
80
Ptot = 500 mW
Tamb = 25 °C
60
40
20
0
0 4 6 8 12
VZ - Z-Voltage (V)
Fig. 7 - Z-Current vs. Z-Voltage
20
50
40
Ptot = 500 mW
Tamb = 25 °C
30
20
10
0
15 20 25 30
VZ - Z-Voltage (V)
Fig. 8 - Z-Current vs. Z-Voltage
.35
1000
1000
IZ = 1 mA
100
5 mA
10 10 mA
1 Tj = 25 °C
0 5 10 15 20 25
VZ - Z-Voltage (V)
Fig. 9 - Differential Z-Resistance vs. Z-Voltage
tp/T = 0.5
100
tp/T = 0.2
10
tp/T = 0.1
tp/T = 0.01
tp/T = 0.02
Single Pulse
RthJA = 300 K/W
T = Tjmax - Tamb
1
10 -1
tp/T = 0.05
10 0
iZM = (- V Z + (VZ2 + 4rzj x T/Zthp) 1/2)/(2rzj)
10 1 10 2
tp - Pulse Length (ms)
Fig. 10 - Thermal Response
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