11-5
FRONTIER
ELECTRONICS CO., LTD.
1WATT ZENER DIODE
FEATURES
! LOW COST
! SMALL SIZE
MECHANICAL DATA
! CASEDO-41
! TERMINALSAXIAL LEADS,SOLDERABLE PER MIL-STD -202,
METHOD 208 CASE-DO41
! P OLARITYCOLOR BAND DENOTES CATHODE
! MOUNTING POSITIONANY DIME NSIONS IN INCHES AND (MILLIMETERS)
! WEIGHT0.34 GRAMS
MAXIM UM RATINGS AN D ELE CTRICAL CHAR ACTERISTI CS
RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED
STORAGE AND OPERATING TEMPERATURE RANGE -55 TO + 150
ELECTRICAL CHARACTERISTIC S (TA=25 UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
MAXIMUM ZE NER IMPEDAN CE LEAKAGE CURR ENT
JEDEC
TYPE NO
NOMINAL
ZENER
VOLTAGE
VZ@ IZT
VOLTS
TEST
CURRENT
IZT
mA
ZZT @ IZT
OHMS ZZK @ IZK
OHMS IZK
mA IR
µA MAX VR
VOLTS
SURGE
CURRENT
@ TA=25
IRmA
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
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
47
51
56
62
68
75
82
91
100
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
6.5
6
5.5
5
4.5
4
3.7
3.3
3
2.8
2.5
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
80
95
110
125
150
175
200
250
350
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
1500
1500
2000
2000
2000
2000
3000
3000
3000
1
1
1
1
1
1
1
1
1
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
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
5
5
5
5
5
5
5
5
5
1
1
1
1
1
1
2
3
4
5
6
7
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
35.8
38.8
42.6
47.1
51.7
56
62.2
69.2
76
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
95
90
80
70
65
60
55
50
45
NOTESUFFIX "A" FOR ±5
1N4728A
THRU
1N4764A
.205(5.2)
.166(4.2) 1.0(25.4)
MIN
.034(0.9)
.028(0.7)
1.0(25.4)
MIN
.107(2.7)
.080
(
2.0
)
RATINGS AND CHARACTERISTIC CURVES 1N4728A THRU 1N4764A
Figure 2. Temperature Coefficients (-55
to+150
temperature change;90% of the units are in the ranges indicated.)
Figure 3. Typical Thermal Resistance versus Lead Figure 4. Effect of Zener Current
400
300
200
100
50
20
10
8
4
C, CAPACITANCE (PF)
1 2 5 10 20 50 100
V
Z, NOMINAL VZ (VOLTS)
1000
700
500
200
100
70
50
20
10
7
5
2
1
ZZDYNAMIC IMPEDANCE (OHNS)
1 2 3 5 7 10 20 30 50 70 100
V
Z, ZENER CURRENT (mA)
Iz=1mA
5mA
20mA
Tj=25
Iz(ms)=0.1Iz(do)
f=60hz
50%OF BREAKDOWNBIAS
0VBIAS
0VBIAS
175
150
125
100
75
50
25
0
θ
θ
θ
θJL, JUMCTION TO LEAD
THERMAL
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
10
+6
+4
+2
0
-2
-4
θ
θ
θ
θVZ, TEMPERATURE COEFF I CIENT
(
mV/
)
3 4 5 6 7 8
20mA
1mA
0.01mA
VZIZ
TA=25
NOTE:BELOW 3 VOLTS AAND ABOCE 8
VOLTS
CHANGES IN ZENER CURRENT DO NOT
FIG.1A- Range for Units to 12 Volts
+12
+10
+8
+6
+4
+2
0
-2
-4
θ
θ
θ
θVZ, TEMPERATURE COEFF I CIENT
(
mV/
)
2 3 4 5 6 7 8 9 10 11 12
VZ, ZENER VOLT AGE (VOLTS)
FIG.1B- Range for Units to 12 to 100
100
70
50
30
20
10
7
5
3
2
1
θ
θ
θ
θVZ, TEMPERATURE COEFFI CIENT
(
mV/
)
10 20 30 50 70 100
VZ, ZENER VOLT AGE (VOLTS)
RANGE
RANGE
VZIZT
VZIZT
L, LEAD LENGTH TO HEAT SINK (INCHES) V
Z
ZENER VOLTAGE
VOLTS
1.2
5
1.0
0.7
5
0.5
Figure. 7 - Power Temperature Derating Curve
0 20 40 60 80 100 120 140 160 180 200
TL, LEAD TEMPERAT URE (OC)
PD ,MAXIMUM DISSIPATION
(WATTS)
11-6