SMD Zener Diode
CZRA4728-G Thru CZRA4764-G
Voltage: 3.3 to 100 Volts
Power: 1.0 Watts
RoHS Device
DO-214AC/SMA
Features
-Batch process design, excellent power dissipation
offers better reverse leakage current and thermal
resistance.
-Standard zener voltage tolerance ±5%.
0.196(4.9)
0.180(4.5)
0.012(0.3) Typ.
0.106(2.7)
0.091(2.3)
-Low inductance.
-Low profile package.
-Built-in strain relief.
Mechanical data
-Epoxy: UL94V-0 rated flame retardant.
0.068(1.7)
0.060(1.5)
-Case: Molded plastic, JEDEC DO-214AC/SMA
0.032(0.8)Typ.
-Terminals: Solder Plated,solderable per
MIL-STD-750,method 2026.
0.032(0.8)Typ.
-Polarity: Indicated by cathode band.
-Mounting position: Any.
Dimensions in inches and (millimeter)
-Weight: 0.05 gram(approx.).
Maximum Ratings (T =25°C, unless otherwise noted)
A
Parameter
Condition
Symbol
MIN.
TYP.
MAX.
Units
Forward voltage
IF = 200 mA
VF
1.20
V
Power Dissipation
@TL = 75°C
PD
1000
mW
Junction to case (Note 1)
RθJC
30
°C/W
Junction to ambient (Note 1)
RθJA
50
°C/W
Thermal resistance
Operating temperature
Storge temperature
TJ
-55
+150
°C
TSTG
-65
+175
°C
Note: 1.Mounted on 0.2”x0.2”(5x5mm)FR-4 PCB.
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ004
REV:E
Page 1
SMD Zener Diode
Electrical Characteristics ( at T
A
Zener Voltage
Part Number
Marking
Code
= 25°C unless otherwise noted)
Zener Impedance
Test Current
VZ@IZT
IZT
ZZT @ IZT ZZK @ IZK
Volts
mA
oHMs
Leakage Current
Surge Current
IZK
IR
VR
Isurge
oHMs
mA
uA
Volts
mA
CZRA4728-G
Z3V3
3.3
76
10
400
1.0
100
1.0
1380
CZRA4729-G
Z3V6
3.6
69
10
400
1.0
100
1.0
1260
CZRA4730-G
Z3V9
3.9
64
9
400
1.0
50
1.0
1190
CZRA4731-G
Z4V3
4.3
58
9
400
1.0
10
1.0
1070
CZRA4732-G
Z4V7
4.7
53
8
500
1.0
10
1.0
970
CZRA4733-G
Z5V1
5.1
49
7
550
1.0
10
1.0
890
CZRA4734-G
Z5V6
5.6
45
5
600
1.0
10
2.0
810
CZRA4735-G
Z6V2
6.2
41
2
700
1.0
10
3.0
730
CZRA4736-G
Z6V8
6.8
37
3.5
700
1.0
10
4.0
660
CZRA4737-G
Z7V5
7.5
34
4
700
0.5
10
5.0
605
CZRA4738-G
Z8V2
8.2
31
4.5
700
0.5
10
6.0
550
CZRA4739-G
Z9V1
9.1
28
5
700
0.5
10
7.0
500
CZRA4740-G
Z10
10
25
7
700
0.25
10
7.6
454
CZRA4741-G
Z11
11
23
8
700
0.25
5
8.4
414
CZRA4742-G
Z12
12
21
9
700
0.25
5
9.1
380
CZRA4743-G
Z13
13
19
10
700
0.25
5
9.9
344
CZRA4744-G
Z15
15
17
14
700
0.25
5
11.4
304
CZRA4745-G
Z16
16
15.5
16
700
0.25
5
12.2
285
CZRA4746-G
Z18
18
14
20
750
0.25
5
13.7
250
CZRA4747-G
Z20
20
12.5
22
750
0.25
5
15.2
225
CZRA4748-G
Z22
22
11.5
23
750
0.25
5
16.7
205
CZRA4749-G
Z24
24
10.5
25
750
0.25
5
18.2
190
CZRA4750-G
Z27
27
9.5
35
750
0.25
5
20.6
170
CZRA4751-G
Z30
30
8.5
40
1000
0.25
5
22.8
150
CZRA4752-G
Z33
33
7.5
45
1000
0.25
5
25.1
135
CZRA4753-G
Z36
36
7.0
50
1000
0.25
5
27.4
125
CZRA4754-G
Z39
39
6.5
60
1000
0.25
5
29.7
115
CZRA4755-G
Z43
43
6.0
70
1500
0.25
5
32.7
110
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ004
REV:E
Page 2
SMD Zener Diode
Electrical Characteristics ( at T
A
= 25°C unless otherwise noted)
Zener Voltage Test Current
Marking
Part Number
Code
Zener Impedance
VZ@IZT
IZT
ZZT @ IZT ZZK @ IZK
Volts
mA
(Ω)Max
Leakage Current Surge Current
IZK
IR
VR
Isurge
(Ω)Max
mA
(uA)Max
Volts
mA
CZRA4756-G
Z47
47
5.5
80
1500
0.25
5
35.8
95
CZRA4757-G
Z51
51
5.0
95
1500
0.25
5
38.8
90
CZRA4758-G
Z56
56
4.5
110
2000
0.25
5
42.6
80
CZRA4759-G
Z62
62
4.0
125
2000
0.25
5
47.1
70
CZRA4760-G
Z68
68
3.7
150
2000
0.25
5
51.7
65
CZRA4761-G
Z75
75
3.3
175
2000
0.25
5
56.0
60
CZRA4762-G
Z82
82
3.0
200
3000
0.25
5
62.2
55
CZRA4763-G
Z91
91
2.8
250
3000
0.25
5
69.2
50
CZRA4764-G
Z100
100
2.5
350
3000
0.25
5
76.0
45
Note: 5% tolerance of Zener voltage.
RATING AND CHARACTERISTIC CURVES (ACZRA4728-G Thru. ACZRA4764-G)
Fig.1 - Max. Continuous Power Derating
Fig.2 - Maximum surge power
100
Rectangular waveform
TJ-25°C Prior to initial pulse
60 Hz resistive
or inductive load
Peak Surge Power, (W)
Maximum Power Dissipation, (W)
1.0
0.75
0.5
0.25
0
0
25
50
75
100
Lead Temperature, TL (°C)
125
150
5% Duty Cycle
11V-91V Non-Repetitive
10
10% Duty Cycle
20% Duty Cycle
1.0
0.01
0.1
1
10
100
Pulse Width, (ms)
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ004
1000
REV:E
Page 3
SMD Zener Diode
RATING AND CHARACTERISTIC CURVES ( CZRA4728-G Thru. CZRA4764-G)
FIG 3B. Range for Units 12 to 100 Volts
FIG 3A. Range for Units to 12 Volts
100
Temperature Coefficient, (mV/°C)
Temperature Coefficient, (mV/°C)
12
10
8
6
4
2
Range
0
-2
VZ@IZT
10
Range
VZ@IZT
-4
2
3
4
5
6
7
8
9
10
11
1
10
12
50
100
Zener Voltage, (V)
Zener Voltage, (V)
175
Temperature Coefficient, (mV/°C)
Junction to lead thermal, (mV/°C/W)
FIG 4. Temperature Coefficients (-55°C to +150°C temperature change ; 90% of the units are in the ranges indicated.)
150
125
100
75
50
25
0
6
VZ@IZT
TA=25 OC
4
20mA
2
1mA
-2
Note: Below 3V and above 8V changes
in Zener Voltage do not affect temperature
-4
0
0.1 0.2 0.3 0.4 0.5 0.6
0.7 0.8 0.9 1.0
3
FIG 5. Typical Thermal Resistance
Versus Lead
6
Capacitance, (pF)
IZ=5mA
IZ=20mA
10
TJ=25°C
IZ(ms)=0.1IZ(do)
f=60HZ
10
Zener Current,(mA)
100
0V bias
100
1V bias
10
50% of breakdown
bias
4
1
10
100
Nominal Vz, (V)
Company reserves the right to improve product design , functions and reliability without notice.
QW-BZ004
8
7
400
IZ=1mA
1
1
5
FIG 6. Effect of Zener Current
1000
100
4
Zener Voltage, (V)
Lead length to heat sink, (Inches)
Dynamic impedance, (OHMs)
0.01mA
0
REV:E
Page 4
SMD Zener Diodes
Reel Taping Specification
d
P0
P1
T
E
Index hole
F
W
B
C
P
A
12
o
0
D2
D1 D
W1
Trailer
Device
.......
.......
End
.......
.......
Leader
.......
.......
.......
.......
10 pitches (min)
Start
10 pitches (min)
Direction of Feed
DO-214AC
(SMA)
DO-214AC
(SMA)
SYMBOL
A
B
C
d
D
D1
D2
(mm)
2.80 ± 0.10
5.00 ± 0.10
1.90 ± 0.10
1.50 ± 0.10
178.0 ± 2.00
62.0 MIN.
13.00 ± 0.50
(inch)
0.110 ± 0.004
0.200 ± 0.004
0.075 ± 0.004
0.059 ± 0.004
7.008 ± 0.079
2.441 MIN.
0.512 ± 0.020
SYMBOL
E
F
P
P0
P1
W
W1
(mm)
1.75 ± 0.10
5.50 ± 0.10
4.00 ± 0.10
4.00 ± 0.10
2.00 ± 0.10
12.00 ± 0.30
18.00 ± 1.00
(inch)
0.069 ± 0.004
0.216 ± 0.004
0.157 ± 0.004
0.157 ± 0.004
0.079 ± 0.004
0.472 ± 0.012
0.709 ± 0.039
Company reserves the right to improve product design , functions and reliability without notice.
REV:E
Page 5
QW-BZ004
Comchip Technology CO., LTD.
SMD Zener Diode
Pinning information
Simplified outline
Pin
PIN 1 Cathode
PIN 2 Anode
1
Symbol
2
1
2
Marking Code
Marking Code
Part Number
CZRA4728-G ~ CZRA4764-G
XXXX
XXXX
Product type marking code (see page.2~3)
Suggested PAD Layout
D
DO-214AC (SMA)
SIZE
(mm)
(inch)
A
A
3.80
0.150
E
B
1.60
0.063
C
2.80
0.110
D
5.40
0.213
E
2.20
0.087
C
B
Standard Packaging
REEL PACK
Case Type
DO-214AC
(SMA)
REEL
Reel Size
( pcs )
(inch)
2,000
7
Company reserves the right to improve product design , functions and reliability without notice.
REV:E
Page 6
QW-BZ004
Comchip Technology CO., LTD.
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