CZRA4742-G Comchip Technology, CZRA4742-G Datasheet - Page 3

• Manufacturer Part Number: CZRA4742-G
• Description: Zener Diodes Zener Diode 100mW, 12V
• Manufacturer: Comchip Technology

Specifications of CZRA4742-G

• Rohs: yes
• Zener Voltage: 12 V
• Voltage Tolerance: 5 %
• Power Dissipation: 1 W
• Maximum Reverse Leakage Current: 5 uA
• Maximum Zener Impedance: 9 Ohms
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Package / Case: DO-214AC / SMA
• Configuration: Single
• Forward Voltage Drop: 1.2 V at 200 mA
• Minimum Operating Temperature: - 55 C

RATING AND CHARACTERISTIC CURVES (
QW-BZ004
SMD Zener Diode
FIG 2. Temperature Coefficients (-55°C to +150°C temperature change ; 90% of the units are in the ranges indicated.)
1000
100
175
150
125
100
12
10
75
-2
-4
50
25
10
8
6
4
2
0
0
1
2
FIG 3. Typical Thermal Resistance
FIG 1A. Range for Units to 12 Volts
1
0
IZ=20mA
3
0.1 0.2 0.3 0.4 0.5 0.6
IZ=1mA
IZ=5mA
Versus Lead
4
Lead length to heat sink, (Inches)
5
Zener Current,(mA)
Zener Voltage, (V)
6
10
7
Range
8
T
I
f=60H
Z
J
9
0.7 0.8 0.9 1.0
(ms)=0.1I
=25°C
V
Z
10
Z
@I
ZT
11 12
Z
(do)
100
CZRA4728-G Thru CZRA4755-G
400
100
100
10
10
-2
-4
1
6
4
2
0
4
10
1
FIG 1B. Range for Units 12 to 100 Volts
FIG 4. Effect of Zener Current
3
V
T
Z
A
@I
=25 C
ZT
1mA
O
4
20mA
Zener Voltage, (V)
Range
Zener Voltage, (V)
50% of breakdown
bias
Note: Below 3V and above 8V changes
in Zener Voltage do not affect temperature
Nominal Vz, (V)
5
10
SMD Diodes Specialist
6
0.01mA
0V bias
50
1V bias
7
V
Z
@I
REV:C
Page 3
ZT
100
100
8
)