Surface Mount Zener Diodes
COMCHIP
SMD DIODE SPECIALIST
CZRT 5221 THRU 5259
Voltage: 2.4 - 39 Volts
Power: 500mWatts
SOT-23
Features
Planar Die construction
500mW Power Dissipation
Zener Voltages from 2.4V – 39V
Ideally Suited for Automated Assembly Processes
.119 (3.0)
.110 (2.8)
.020 (0.5)
Top View
.056 (1.40)
.047 (1.20
)
.006 (0.15)
.002 (0.05)
Mechanical Data
Terminals:
Solderable per NIL-STD-202, Method 208
Approx. Weight:
0.008 gram
.037(0.95) .037(0.95)
.006 (0.15)max.
Case:
SOT-23, Plastic
.020 (0.5)
.020 (0.5)
.103 (2.6)
.086 (2.2)
Dimensions in inches (millimeters)
Maximum Ratings and Thermal Characteristics
Parameter
Power Disspation (
Notes A
) at 75°C
Peak Forward Surge Current, 8.3ms single half sine-ware
superimposed on rate load (
JEDEC method
)
(Notes B
)
Operating Junction and Storage Temperature Range
Notes:
A. Mounted on 5.0 mm2(.013mm thick) land areas.
B. Measured on 8.3ms, single half sine-wave or equivalent square wave, duty cycle = 4 pulses minute maximum.
Symbol
P
D
I
FSM
T
J
Value
500
4.0
-55 to +15C
Units
mW
Amps
°C
MDS0209005A
Comchip
Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 1
.044 (1.10)
.035 (0.90)
Surface Mount Zener Diodes
CZRT 5221 THRU 5259
COMCHIP
SMD DIODE SPECIALIST
Electrical Characteristics
Part Number
V
z
@ I
ZT
(TA = 25 C unless otherwise noted) V
F
=1.2V max, I
F
=100mA for all types.)
Max. Zener Impedance
Max Reverse
Typical Temp.
Leakage Current
Coefficient
Max. Zener
current
Max. Zener Impedance
Z
ZT
@ I
ZT
mA
30
30
30
30
28
25
23
22
19
17
11
7
5
6
8
10
17
22
30
13
16
17
21
25
29
33
41
44
49
58
70
80
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
8.5
7.8
7
6.2
5.6
5.2
5
4.5
4.2
3.8
3.4
3.2
Z
zk
@ I
zk
mA
1200
1250
1300
1600
1600
1700
1900
2000
1900
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
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
I
R
@ V
R
nA
100
100
75
50
25
15
10
5
5
5
5
5
3
3
3
3
3
3
2
1
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
Nom.V Min.V Max.V
500 mWatts Zener Diodes
CZRT5221
CZRT5222
CZRT5223
CZRT5225
CZRT5226
CZRT5227
CZRT5228
CZRT5229
CZRT5230
CZRT5231
CZRT5232
CZRT5234
CZRT5235
CZRT5236
CZRT5237
CZRT5239
CZRT5240
CZRT5241
CZRT5242
CZRT5243
CZRT5245
CZRT5246
CZRT5248
CZRT5250
CZRT5251
CZRT5252
CZRT5254
CZRT5255
CZRT5256
CZRT5257
CZRT5258
CZRT5259
2.4
2.5
2.7
3
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
28
30
33
36
39
2.28
2.38
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
5.89
6.46
7.13
7.79
8.65
9.50
10.45
11.40
12.35
14.25
15.20
17.10
19.00
20.90
22.80
25.65
26.60
28.50
31.35
34.20
37.05
2.52
2.63
2.84
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
6.51
7.14
7.88
5.61
9.56
10.50
11.55
12.60
13.65
15.75
16.80
18.90
21.00
23.10
25.20
28.35
29.40
31.50
34.65
37.80
40.95
V
1
1
1
1
1
1
1
1
2
2
3
4
5
6
6
6.5
8
8.4
9.1
9.9
11
12
14
15
17
18
21
21
23
25
27
30
T
C
I
ZM
@ T
a
mA
188
180
167
150
138
126
115
106
97
89
81
73
67
61
55
50
45
41
38
35
30
28
25
23
21
19.1
16.8
16.2
15.1
13.8
12.6
11.6
-0.070
-0.065
-0.060
-0.055
0.030
0.030
+0.038
+0.038
+0.045
+0.050
+0.058
+0.062
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.082
+0.083
+0.084
+0.085
+0.086
+0.086
+0.087
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
NOTE:
1.Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of ±5% for 'B' and ±10% for 'A
2.Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage t olerances.
B. Matched sets.
3. Zener Voltage (VZ) Measurement. Guarantees the zener volt age when measured at 90 seconds while maintaining the lead the t emperature (TL) at
30° , from the diode body.
C
4. Zener Impedance (ZZ) Derivation. The zener impedanc e is derived from the 60 cycle ac voltage, which resul ts when an AC current having an rms
value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK
5. Surge Current (IR) Non-Repetitive. The rating listed in the el ectrical characteristics table is maximum peak, non-repetit ive, reverse surge current of 1/2
square wave or equivalent sine wave pulse of 1/120 second duration superimposed on t he test current, IZT, per JEDEC regis tration; however, actual
device capability is as described in Figure 5.
MDS0209005A
Comchip Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 2
Surface Mount Zener Diodes
CZRT 5221 THRU 5259
COMCHIP
SMD DIODE SPECIALIST
8
7
100
TEMPERATURE COEFFICIENT,mV /
o
C)
6
5
4
3
2
1
0
-1
-2
-3
2
3
4
5
6
7
8
9
10
11
12
TEMPERATURE COEFFICIENT,mV /
o
C)
10
1
10
100
NOMINAL ZENER VOLTAGE, Volts
NOMINAL ZENER VOLTAGE, Volts
TYPICAL REVERSE CURRENT
1000
DYNAMIC IMPEDANCE,
W
IZ = 1 mA
FORWARD CURRENT, mA
T
J
=25 C
I
Z(AC)=0.1
I
Z(DC)
F=1 kHZ
O
1000
100
5 mA
20 mA
100
10
10
150
O
C
75 C
O
25 C
O
5
O
C
1
1
10
NORMAL ZENER VOLTAGE, Volts
100
1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
FORWARD VOLTAGE, Volts
TYPICAL FORWARD VOLTAGE
1.2
1.0
1000
0 V BIAS
1 V BIAS
T
A
=25
o
C
POWER DISSIPATION, Watts
0.8
0.6
0.4
0.2
0
CAPACITANCE, pF
100
BIAS AT
50% OF VZ NOM
P
D V
.
S
. T
A
10
25
50
75
100
125
150
155
1
1
10
100
TEMPERATURE ( C)
o
NOMINAL ZENER VOLTAGE, Volts
STEADY STATE POWER DERATING
TYPICAL CAPACITANCE
MDS0209005A
Comchip Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 3
Surface Mount Zener Diodes
CZRT 5221 THRU 5259
COMCHIP
SMD DIODE SPECIALIST
100
T
A
=25 C
ZENER CURRENT, mA
ZENER CURRENT, mA
o
100
T
A
=25
o
C
10
10
1
1
0.1
0.1
0.01
0
2
4
6
8
10
12
0.01
10
30
50
70
90
ZENER VOLTAGE, Volts
ZENER VOLTAGE, Volts
ZENER VOLTAGE V.S. ZENER CURRENT
ZENER VOLTAGE V.S. ZENER CURRENT
1000
LEAKAGE CURRENT (
m
A)
100
10
1
0.1
0.01
0.001
0.0001
0.00001
0
10
20
30
40
50
60
70
+150
O
C
+25 C
O
-55
O
C
80
90
NOMINAL ZENER VOLTAGE, Vlots
TYPICAL LEAKGE CURRENT
MDS0209005A
Comchip Technology Corporation • Tel: 510-657-8671 • Fax: 510-657-8921 • www.comchiptech.com
Page 4
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