ZM4728A - ZM4764A
V
Z
:
3.3 to 100V
P
D
:
1W
FEATURES :
• Silicon planar power zener diodes
• For use in stabilizing and clipping circuits with
higher power rating.
• Standard zener voltage tolerance is
±
5%.
• Other zener voltages and tolerances are
available upon request.
• These diodes are also available in the DO-41
case with type designation 1N4728A ... 1N4764A
• Pb / RoHS Free
ZENER DIODES
MELF
Cathode Mark
φ
0.102 (2.6)
0.094 (2.4)
0.022(0.55)
0.205(5.2)
0.189(4.8)
Mounting Pad Layout
0.157 (4.00)
Max.
0.049 (1.25)Min.
0.118 (3.00)Min.
MECHANICAL DATA :
* Case : MELF Glass Case
* Weight : 0.25 g (approximately)
0.256 (6.50)
REF
Dimensions in inches and ( millimeters )
Rating at 25
°
C ambient temperature unless otherwise specifie.
Maximum Ratings and Thermal Characteristics
Parameter
Zener Current see Table "Characteristics"
Maximum Forward Voltage at I
F
= 200 mA.
Power Dissipation
Thermal Resistance Junction to Ambient Air
Junction temperature
Storage temperature range
V
F
P
D
R
θ
JA
T
J
T
S
1.2
1
1)
170
(1)
-65 to + 200
-65 to + 200
V
W
°C/W
°C
°C
Symbol
Value
Unit
Note: (1) Valid provided that electrodes are kept at ambient temperature
Page 1 of 2
Rev. 03 : March 25, 2005
ELECTRICAL CHARACTERISTICS
Nominal Zener
(Ta = 25 °C unless otherwise noted)
Maximum Reverse
Leakage Current
I
R
@ V
R
(V)
(
μ
A)
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
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
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
Maximum DC
Zener Current
I
ZM
(2)
(mA)
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9.0
Type
Voltage
V
Z
@ I
ZT
(V)
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
I
ZT
(mA)
76.0
69.0
64.0
58.0
53.0
49.0
45.0
41.0
37.0
34.0
31.0
28.0
25.0
23.0
21.0
19.0
17.0
15.5
14.0
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
3.0
2.8
2.5
Maximum Zener Impedance
(1)
Z
ZT
@ I
ZT
(Ω)
10
10
9.0
9.0
8.0
7.0
5.0
2.0
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
200
250
350
Z
ZK
@ I
ZK
(Ω)
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
I
ZK
(mA)
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
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
ZM4728A
ZM4729A
ZM4730A
ZM4731A
ZM4732A
ZM4733A
ZM4734A
ZM4735A
ZM4736A
ZM4737A
ZM4738A
ZM4739A
ZM4740A
ZM4741A
ZM4742A
ZM4743A
ZM4744A
ZM4745A
ZM4746A
ZM4747A
ZM4748A
ZM4749A
ZM4750A
ZM4751A
ZM4752A
ZM4753A
ZM4754A
ZM4755A
ZM4756A
ZM4757A
ZM4758A
ZM4759A
ZM4760A
ZM4761A
ZM4762A
ZM4763A
ZM4764A
Notes:
(1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS value equal
to 10% of the Zener current
(I
ZT
or I
ZK
) is superimposed on
I
ZT
or I
ZK
. Zener impedance is measured at two points to
insure a sharp knee on the breakdown curve and to eliminate unstable units
(2) Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
(3) The type number listed have a standard tolerance on the nominal zener voltage
of
±
5%.
Page 2 of 2
Rev. 03 : March 25, 2005
stm32/stm8
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