Page 3
QW-A2002
SMD Zener Diode
RATING AND CHARACTERISTIC CURVES (CZRU52C2 Thru CZRU52C39)
O
TEMPERATURE COEFFICIENT,(mV/ C)
Fig.1 TEMPERATURE COEFFICENTS
NOMINAL ZENER VOLTAGE,VOLTS
-4
6
5
4
3
2
1
0
1
-2
-3
2 1211
1098
7
6
5
4
3
7
Fig.6 TYPICAL CAPACITANCE
NORMAL ZENER VOLTAGE,VOLTS
CAPACITANCE,PF
0 10 20 30 40
0
50
100
150
200
250
300
350
400
0V BIAS
1V BIAS
BIASAT
50% OF VZNOM
O
TA =25 C
Fig.3 EFFECT OF ZENER VOLTAGE
ON ZENER IMPEDANCE
NORMALL ZENER VOLTAGE,VOLTS
50
110
1
10
100
1000
O
TJ=25 C
IZ (AC)0.1IZ (DC)
F=1kHZ
DYNAMIC IMPEDANCE,Ohm
IZ=20mA
IZ=1mA
IZ=5mA
Fig.5 TYPICAL LEAKAGE CURRENT
NOMINAL ZENER VOLTAGE,Volts
100
10
1
0.1
0.01
0.001
0.0001
0.00001 0 5 10 15 20 25 30 35 40 45
LEAKAGE CURRENT,mA
O
+125 C
O
+25 C
O
-55 C
FORWARD VOLTAGE, Volts
Fig.4 TYPICAL FORWARD VOLTAGE
0.4
1
10
100
1000
0.5 0.6 0.7 0.8 0.9 1.0 1.1
FORWARD CURRENT,mA
O
25C
O
75C
O
125C
Fig.2 TEMPERATURE COEFFICENTS
NOMINAL ZENER VOLTAGE,VOLTS
O
TEMPERATURE COEFFICIENT,(mV/ C)
100
10 50
10
1
3020 40
REV:B
Comchip Technology CO., LTD.