SMD Zener Diode
COMCHIP
SMD Diodes Specialist
CZRT5222B-G Thru. CZRT5256B-G
Voltage: 2.5 to 30 Volts
Power: 300 mWatts
RoHS Device
Features
- Planar die construction.
- 300mW power dissipation on FR-4 PCB.
- Ideally suited for automated assembly
process.
- General purpose, medium current.
0.056(1.40)
0.047(1.20)
0.119(3.00)
0.110(2.80)
SOT-23
3
1
0.079(2.00)
0.071(1.80)
2
Mechanical data
- Case: SOT-23, Molded plastic.
- Terminals: Solderable per MIL-STD-
202G,method 208.
- Polarity: See diagram below.
- Mounting position: Any
- Marking: see table on page2.
- Weight: 0.0078 gram(approx.).
3
0.020(0.50)
0.012(0.30)
0.041(1.05)
0.035(0.90)
0.006(0.15)
0.002(0.05)
0.100(2.55)
0.089(2.25)
0.004(0.10) max
0.008(0.20) min
Dimensions in inches and (millimeter)
1
2
Electrical Characteristics (TA=25°C, unless otherwise specified)
Parameter
Forward voltage drop at I
F
=10mA
Power dissipation (Notes A),T
A
= 25°C
Thermal resistance, junction to ambient air (Notes A)
Operating junction and storage temperature range
Symbol
VF
PD
RθJA
TJ
Value
0.9
300
417
-65 to +150
Unit
V
mW
°C/W
°C
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QW-BZ013
Page 1
Comchip Technology CO., LTD.
SMD Zener Diode
COMCHIP
SMD Diodes Specialist
Electrical Characteristics(@Ta = 25°C unless otherwise specified)
Zener Voltage
Part Number
Min.
CZRT5222B-G
CZRT5223B-G
CZRT5225B-G
CZRT5226B-G
CZRT5227B-G
CZRT5228B-G
CZRT5229B-G
CZRT5230B-G
CZRT5231B-G
CZRT5232B-G
CZRT5233B-G
CZRT5234B-G
CZRT5235B-G
CZRT5236B-G
CZRT5237B-G
CZRT5238B-G
CZRT5239B-G
CZRT5240B-G
CZRT5241B-G
CZRT5242B-G
CZRT5243B-G
CZRT5244B-G
CZRT5245B-G
CZRT5246B-G
CZRT5247B-G
CZRT5248B-G
CZRT5249B-G
CZRT5250B-G
CZRT5251B-G
CZRT5252B-G
CZRT5253B-G
CZRT5254B-G
CZRT5255B-G
CZRT5256B-G
2.38
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.25
15.20
16.15
17.10
18.05
19.00
20.90
22.80
23.75
25.65
26.60
28.50
VZ(V)@IZT
Nom.
2.5
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
Max.
2.63
2.84
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.30
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
14.70
15.75
16.80
17.85
18.90
19.95
21.00
23.10
25.20
26.25
28.35
29.40
31.50
Operating
Resistance
ZZT(Ohm)
Max.
30
30
30
28
24
23
22
19
17
11
17
7
5
6
8
8
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
IZT(mA)
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
5.0
4.5
4.2
Rising Operating
Resistance
ZZK(Ohm)
Max.
1250
1300
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
IZK(mA)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Max.
100
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
Reverse Current
Marking
IR(uA)
VR(V)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
2.0
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
KC2
KC3
KC5
KG1
KG2
KG3
KG4
KG5
KE1
KE2
KE3
KE4
KE5
KF1
KF2
KF3
KF4
KF5
KH1
KH2
KH3
KH4
KH5
KJ1
KJ2
KJ3
KJ2
KJ5
KK1
KK2
KK3
KK4
KK5
KM1
Code
Notes:
1. Short duration test pulse used to minimize self-heating effect.
2. f=1KH
Z
.
3. 5% Standard Vz Tolerance
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Page 2
Comchip Technology CO., LTD.
SMD Zener Diode
COMCHIP
SMD Diodes Specialist
RATING AND CHARACTERISTIC CURVES (CZRT5222B-G Thru CZRT5256B-G )
Fig.1- Power Derating Curve
400
PPK, Peak Surge Power, (W)
Pd, Power Dissipation, (mW)
100
Fig.2- Maximum Non-repetitive Surge Power
300
200
10
100
0
0
100
TA , Ambient Temperature, (°C)
200
1
0
10
100
1000
Normal zener voltage, (V)
Fig.3- Zener Voltage vs Zener Impedence
1000
Dynamic Zener Impedance, (
Ω
)
CT, Total Capacitance, (pF)
1000
Fig.4- Total Capacitance vs Nominal Zener Voltage
T
J
= 25°C
100
I
Z
= 1.0mA
100
V
R
= 1V
10
V
R
= 2V
10
1
1
10
Vz,Nominal Zener Voltage, (V)
100
0
10
Vz,Nominal Zener Voltage, (V)
100
Fig.5- Zener Breakdown Characteristics
50
T
J
=25 C
5V6
6V8
O
Fig.6- Zener Breakdown Characterisitcs
30
T
J
=25 C
O
10
12
I
Z
, Zener Current, (mA)
I
Z
, Zener Curren, (mA)
40
5V2
20
15
Nominal Zener Voltage
30
Test current
18
22
20
10
27
33
36 39
10
Test current
I
Z
=20mA
0
0
0
1
2
3
4
5
6
7
8
9
10
0
10
20
30
40
VZ, Zener Voltage, (V)
VZ, Zener Voltage, (V)
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Page 3
Comchip Technology CO., LTD.
SMD Zener Diode
Reel Taping Specification
P
0
P
1
d
Index hole
E
T
COMCHIP
SMD Diodes Specialist
F
B
P
A
W
C
12
0
o
D
2
D
1
D
W
1
Trailer
.......
.......
10 pitches (min)
Device
.......
.......
.......
.......
Leader
.......
.......
10 pitches (min)
End
Start
Direction of Feed
SYMBOL
A
3.15
±
0.10
0.124
±
0.004
B
2.77
±
0.10
0.109
±
0.004
C
1.22
±
0.10
0.048
±
0.004
d
1.50
+
0.10
0.059
+
0.004
D
178
±
1.00
7.008
±
0.039
D
1
54.40
±
0.40
2.142
±
0.016
D
2
13.00
±
0.20
0.512
±
0.008
SOT-23
(mm)
(inch)
SYMBOL
E
1.75
±
0.10
0.069
±
0.004
F
3.50
±
0.05
0.138
±
0.002
P
4.00
±
0.10
0.157
±
0.004
P
0
4.00
±
0.10
0.157
±
0.004
P
1
2.00
±
0.10
0.079
±
0.004
W
8.00
+
0.30 /
–0.10
0.315
+
0.012 /
–0.004
W
1
9.50
±
1.00
0.374
±
0.039
SOT-23
(mm)
(inch)
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Page 4
Comchip Technology CO., LTD.
SMD Zener Diode
Marking Code
Part Number
CZRT5223B-G ~ CZRT5256B-G
Marking Code
XXX
COMCHIP
SMD Diodes Specialist
XXX
Product type marking code (see page.2)
Suggested PAD Layout
SOT-23
SIZE
(mm)
A
B
C
D
0.80
1.90
2.02
2.82
(inch)
0.031
C
0.075
0.080
0.111
B
D
A
Standard Packaging
Case Type
SOT-23
Qty Per Reel
(Pcs)
3,000
Reel Size
(inch)
7
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Page 5
Comchip Technology CO., LTD.
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