SMD Zener Diodes
CZRW55C2V4-G Thru CZRW55C39-G
Voltage: 2.4 to 39 Volts
Power: 500 mWatts
RoHS Device
Features
-Planar die construction.
-500mW power dissipation.
-Ideally suited for automated assembly
process.
-Ultra small surface mount package.
0.026(0.65)
0.018(0.45)
0.152(3.85)
0.140(3.55)
SOD-123
+
-
0.067(1.70)
0.059(1.50)
0.110(2.80)
0.102(2.60)
Mechanical data
-Case: SOD-123, Molded plastic
-Terminals: Solderable per MIL-STD-
202G,method 208
-Polarity: Indicated by cathode band.
-Mounting position: Any
0.049(1.25)
0.041(1.05)
0.004(0.10)
Max.
0.006(0.15)
Max.
0.02(0.50) REF
Marking: see table on page2
Dimensions in inches and (millimeter)
Maximum Ratings
(TA=25°C, unless otherwise specified)
Parameter
Forward voltage at I
F
=10mA (Note 2)
Power dissipation (Note 1)
Thermal resistance, junction to ambient air
Operating junction and storage temperature range
Note:
1. Device mounted on ceramic PCB: 7.6mm×9.4mm×0.87mm with pad area 25mm.
2. Short duration test pulse used to minimize self-heating effect.
3. When provided,otherwise,parts are provided with date code only,and type number identifications appears on reel only.
4. f=1KHz
2
Symbol
V
F
P
D
R
θJA
T
J
, T
STG
Value
0.9
500
250
-65 to +150
Unit
V
mW
°C/W
°C
REV:C
QW-BZ016
Page 1
Comchip Technology CO., LTD.
SMD Zener Diodes
Ratings and Characteristic Curves(CZRW55C2V4-G Thru. CZRW55C39-G)
Fig.1 Power Dissipation Derating
Curve
500
Fig.2 Zener Breakdown Characteristics
50
T
J
=25
O
C
C2V7
C3V9 C5V6
C4V7
C6V8
C3V3
P
D
, Power Dissipation, (mW)
Ι
Ζ
, Zener Current, (mA)
400
40
C8V2
300
30
200
20
Test current
I
Z
=5mA
100
10
0
0
25
50
75
100
125
150
0
0
1
2
3
4
5
6
7
8
9
10
T
A
, Ambient Temperature, (°C)
V
Z
, Zener Voltage, (V)
Fig.3 Zener Breakdown Characteristics
30
T
J
=25
O
C
C10
C12
Fig.4 Zener Breakdown Characteristics
10
T
J
=25
O
C
C39
I
Z
, Zener Current, (mA)
20
C15
I
Z
, Zener Current, (mA)
8
6
C18
Test current
I
Z
=2mA
C22
4
Test current
I
Z
=2mA
10
Test current
I
Z
=5mA
C27
C33
C36
2
0
0
10
20
30
40
0
0
10
20
30
40
50
60
70
80
70
80
V
Z
, Zener Voltage, (V)
V
Z
, Zener Voltage, (V)
Fig.4- Total Capacitance vs Nominal
Zener Voltage
1000
T
J
= 25°C
f=1MH
Z
C
T
, Toltal Capacitance, (pF)
V
R
= 1V
V
R
= 2V
100
V
R
= 1V
V
R
= 2V
10
0
10
Nominal Zener Voltage , (V)
100
REV:C
QW-BZ016
Page 3
Comchip Technology CO., LTD.
嵌入式系统
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