SMD Zener Diode
CZRA4728-HF Thru. CZRA4764-HF
Voltage: 3.3 to 100 Volts
Power: 1.0 Watts
RoHS Device
Halogen Free
DO-214AC/SMA
Features
-Batch process design, excellent power dissipation
offers better reverse leakage current and thermal
resistance.
-Standard zener voltage tolerance ±5%.
-Low inductance.
-Low profile package.
-Built-in strain relief.
0.196(4.9)
0.180(4.4)
0.012(0.3) Typ.
0.106(2.7)
0.091(2.3)
Mechanical data
-Epoxy: UL94V-0 rated flame retardant.
-Case: Molded plastic, JEDEC DO-214AC/SMA
-Terminals: Solder Plated,solderable per
MIL-STD-750,method 2026.
-Polarity: Indicated by cathode band.
-Mounting position: Any.
-Weight: 0.05 gram(approx.).
Dimensions in inches and (millimeter)
0.068(1.7)
0.060(1.5)
0.032(0.8)Typ.
0.032(0.8)Typ.
Maximum Ratings
(T =25°C, unless otherwise noted)
A
Parameter
Forward voltage
Power Dissipation
Condition
IF = 200 mA
@TL = 75°C
Junction to case (Note 1)
Symbol
V
F
P
D
R
θJC
R
θJA
T
J
T
STG
MIN.
TYP.
MAX.
1.20
1000
Units
V
mW
°C/W
°C/W
30
50
-55
-65
+150
+175
Thermal resistance
Junction to ambient (Note 1)
Operating temperature
Storge temperature
Note: 1.Mounted on 0.2”x0.2”(5x5mm)FR-4 PCB.
°C
°C
Company reserves the right to improve product design , functions and reliability without notice.
QW-JZ003
REV:C
Page 1
SMD Zener Diode
Electrical Characteristics
( at T
Zener Voltage
Part Number
Marking
Code
Volts
V
Z
@I
ZT
A
= 25°C unless otherwise noted)
Test Current
I
ZT
mA
Zener Impedance
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
oHMs
oHMs
I
ZK
mA
Leakage Current
I
R
uA
V
R
Volts
Surge Current
I
surge
mA
CZRA4728-HF
CZRA4729-HF
CZRA4730-HF
CZRA4731-HF
CZRA4732-HF
CZRA4733-HF
CZRA4734-HF
CZRA4735-HF
CZRA4736-HF
CZRA4737-HF
CZRA4738-HF
CZRA4739-HF
CZRA4740-HF
CZRA4741-HF
CZRA4742-HF
CZRA4743-HF
CZRA4744-HF
CZRA4745-HF
CZRA4746-HF
CZRA4747-HF
CZRA4748-HF
CZRA4749-HF
CZRA4750-HF
CZRA4751-HF
CZRA4752-HF
CZRA4753-HF
CZRA4754-HF
CZRA4755-HF
Z3V3
Z3V6
Z3V9
Z4V3
Z4V7
Z5V1
Z5V6
Z6V2
Z6V8
Z7V5
Z8V2
Z9V1
Z10
Z11
Z12
Z13
Z15
Z16
Z18
Z20
Z22
Z24
Z27
Z30
Z33
Z36
Z39
Z43
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
30
33
36
39
43
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
14
16
20
22
23
25
35
40
45
50
60
70
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
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
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
Company reserves the right to improve product design , functions and reliability without notice.
QW-JZ003
REV:C
Page 2
SMD Zener Diode
Electrical Characteristics
( at T
Part Number
Marking
Code
Volts
V
Z
@I
ZT
A
= 25°C unless otherwise noted)
Zener Voltage Test Current
I
ZT
mA
Zener Impedance
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
(Ω)Max
(Ω)Max
I
ZK
mA
Leakage Current
I
R
(uA)Max
V
R
Volts
Surge Current
I
surge
mA
CZRA4756-HF
CZRA4757-HF
CZRA4758-HF
CZRA4759-HF
CZRA4760-HF
CZRA4761-HF
CZRA4762-HF
CZRA4763-HF
CZRA4764-HF
Z47
Z51
Z56
Z62
Z68
Z75
Z82
Z91
Z100
47
51
56
62
68
75
82
91
100
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.8
2.5
80
95
110
125
150
175
200
250
350
1500
1500
2000
2000
2000
2000
3000
3000
3000
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
5
5
5
5
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
95
90
80
70
65
60
55
50
45
Note: 5% tolerance of Zener voltage.
RATING AND CHARACTERISTIC CURVES (
CZRA4728-HF Thru. CZRA4764-HF)
Fig.1 - Max. Continuous Power Derating
1.0
Maximum Power Dissipation, (W)
60 Hz resistive
or inductive load
Fig.2 - Maximum surge power
100
Rectangular waveform
TJ-25°C Prior to initial pulse
5% Duty Cycle
11V-91V Non-Repetitive
0.5
Peak Surge Power,
(W)
0.75
10
10% Duty Cycle
0.25
20% Duty Cycle
0
0
25
50
75
100
125
150
1.0
0.01
0.1
1
10
100
1000
Lead Temperature, TL (°C)
Pulse Width, (ms)
Company reserves the right to improve product design , functions and reliability without notice.
QW-JZ003
REV:C
Page 3
Comchip Technology CO., LTD.
SMD Zener Diode
RATING AND CHARACTERISTIC CURVES (CZRA4728-HF Thru. CZRA4764-HF)
FIG 3A. Range for Units to 12 Volts
12
Temperature Coefficient, (mV/°C)
10
8
6
4
2
Range
FIG 3B. Range for Units 12 to 100 Volts
100
Temperature Coefficient, (mV/°C)
10
Range
0
-2
-4
2
3
4
5
6
7
8
9
10
11
12
V
Z
@I
ZT
V
Z
@I
ZT
1
10
50
Zener Voltage, (V)
100
Zener Voltage, (V)
FIG 4. Temperature Coefficients (-55°C to +150°C temperature change ; 90% of the units are in the ranges indicated.)
Junction to lead thermal, (mV/°C/W)
Temperature Coefficient, (mV/°C)
175
150
125
100
75
50
25
0
0
0.1 0.2 0.3 0.4 0.5 0.6
0.7 0.8 0.9 1.0
Lead length to heat sink, (Inches)
6
4
20mA
2
1mA
0
-2
-4
3
4
5
6
7
8
Zener Voltage, (V)
0.01mA
V
Z
@I
ZT
T
A
=25
O
C
Note: Below 3V and above 8V changes
in Zener Voltage do not affect temperature
FIG 5. Typical Thermal Resistance
Versus Lead
1000
Dynamic impedance, (ohms)
IZ=1mA
FIG 6. Effect of Zener Current
400
Capacitance, (pF)
0V bias
100
100
1V bias
IZ=5mA
IZ=20mA
10
T
J
=25°C
I
Z
(ms)=0.1I
Z
(do)
f=60H
Z
1
1
10
Zener Current,(mA)
100
10
50% of breakdown
bias
4
1
10
Nominal Vz, (V)
100
Company reserves the right to improve product design , functions and reliability without notice.
QW-JZ003
REV:C
Page 4
SMD Zener Diodes
Reel Taping Specification
P
0
P
1
d
Index hole
E
T
F
B
P
A
C
W
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
DO-214AC (SMA)
A
2.8
±
0.10
0.110
±
0.004
B
5.00
±
0.10
0.197
±
0.004
C
1.90
±
0.10
0.075
±
0.004
d
1.50
±
0.10
0.059
±
0.004
D
178
±
2.00
7.008
±
0.078
D
1
62.0 MIN.
2.441 MIN.
D
2
13.0
±
0.50
0.512
±
0.008
(mm)
(inch)
SYMBOL
DO-214AC (SMA)
E
1.75
±
0.10
0.069
±
0.004
F
5.50
±
0.10
0.217
±
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
12.00
±
0.30
0.472
±
0.012
W
1
18.00
±
1.00
0.709
±
0.040
(mm)
(inch)
Company reserves the right to improve product design , functions and reliability without notice.
QW-JZ016
REV:C
Page 5
Comchip Technology CO., LTD.
京公网安备 11010802033920号
EEWORLD
