Frontier Electronics Corp.
667 E. COCHRAN STREET, SIMI VALLEY, CA 93065
TEL: (805) 522-9998
FAX: (805) 522-9989
E-mail:
frontiersales@frontierusa.com
Web:
http://www.frontierusa.com
1WATT ZENER DIODE
1N4736A THRU 1N4764A
FEATURES
LOW COST
SMALL SIZE
.205(5.2)
.166(4.2)
1.0(25.4)
MIN
1.0(25.4)
MIN
MECHANICAL DATA
CASE DO-41, DIMENSIONS IN INCHES AND (MILLIMETERS)
TERMINALS: AXIAL LEADS, SOLDERABLE PER MIL-STD -202,
METHOD 208
POLARITY: COLOR BAND DENOTES CATHODE
MOUNTING POSITION: ANY
WEIGHT: 0.34 GRAMS
.107(2.7)
.080(2.0)
.034(0.9)
.028(0.7)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS
OTHERWISE SPECIFIED STORAGE AND OPERATING TEMPERATURE RANGE -55°C TO + 150°C
ELECTRICAL CHARACTERISTICS (TA=25 ºC UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
MAXIMUM ZENER IMPEDANCE
LEAKAGE CURRENT
NOMINAL
SURGE
TEST
ZENER
CURRENT
CURRENT
JEDEC
VOLTAGE
I
R
Z
ZK
@ I
ZK
I
ZK
V
R
Z
ZT
@ I
ZT
@ TA=25ºC
I
ZT
TYPE NO
V
Z
@ I
ZT
OHMS
OHMS
mA
VOLTS
μA
MAX
mA
I
R
－
mA
VOLTS
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
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
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
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
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
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
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
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
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
NOTE: SUFFIX "A" FOR ± 5%.
1N4736A THRU 1N4764A
Page: 1
FIG.1A- Range for Units to 12 Volts
FIG.1B- Range for Units to 12 to 100 Volts
θ
V
Z
, TEMPERATURE COEFFICIENT
+10
+8
( mV/ºC)
+6
+4
+2
0
-2
-4
2
3
4
5
6
7
8
9
10
11 12
V
Z
, ZENER VOLTAGE (VOLTS)
RANGE
V
Z
@I
ZT
θ
V
Z
, TEMPERATURE COEFFICIENT
+12
100
70
50
30
20
( mV/ºC)
10
7
5
3
2
1
10
20
30
50
V
Z
, ZENER VOLTAGE (VOLTS)
70
100
RANGE
V
Z
@I
ZT
Figure 2. Temperature Coefficients (-55ºC to+150ºC temperature change; 90% of the units are in the ranges indicated.)
175
+6
θ
JL,
JUNCTION TO LEAD THERMAL
θ
V
Z
, TEMPERATURE COEFFICIENT
150
RESISTANCE (mV/ºC/W)
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
L, LEAD LENGTH TO HEAT SINK (INCHES)
+4
+2
0
V
Z@
I
Z
T
A
=25ºC
20mA
( mV/ºC)
0.01mA
1mA
-2
-4
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
CHANGES IN ZENER CURRENT DO NOT
EFFECT TEMPERATURE COEFFICIENTS
3
4
5
6
7
8
V
Z
, ZENER VOLTAGE (VOLTS)
Figure 3. Typical Thermal Resistance versus Lead Length
1000
700
500
200
100
70
50
20
10
7
5
2
1
1
2 3
5
7
10
20 30
50 70 100
V
Z,
ZENER CURRENT (mA)
Figure. 7 - Power Temperature Derating Curve
P
D
,MAXIMUM DISSIPATION
(WATTS)
1.25
1.0
0.75
0.5
0.25
I
z
=1mA
Figure 4. Effect of Zener Current
400
300
200
0VBIAS
Z
Z
DYNAMIC IMPEDANCE (OHNS)
T
j
=25ºC
I
z
(ms)=0.1I
z
(do)
f=60h
z
C, CAPACITANCE (
P
F)
100
0VBIAS
5mA
50
20
10
8
4
1
2
5
10
20
50
100
V
Z
, NOMINAL V
Z
(VOLTS)
20mA
50%OF BREAKDOWN BIAS
0
20
40
60
80 100 120 140 160
T
L
, LEAD TEMPERATURE (
O
C)
180 200
1N4736A THRU 1N4764A
Page: 1
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