ZM4728 - ZM4764
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
±
10%.
• Other zener voltages and tolerances are
available upon request.
• These diodes are also available in the DO-41
case with type designation 1N4728 ... 1N4764
• 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 specified.
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)
Symbol
Value
Unit
V
W
°C/W
°C
°C
170
(1)
-65 to + 200
-65 to + 200
Note :
(1) Valid provided that electrodes are kept at ambient temperature
Page 1 of 2
Rev. 02 : March 25, 2005
ELECTRICAL CHARACTERISTICS
(Ta = 25
°
C unless otherwise noted)
Nominal Zener
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
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
ZM4728
ZM4729
ZM4730
ZM4731
ZM4732
ZM4733
ZM4734
ZM4735
ZM4736
ZM4737
ZM4738
ZM4739
ZM4740
ZM4741
ZM4742
ZM4743
ZM4744
ZM4745
ZM4746
ZM4747
ZM4748
ZM4749
ZM4750
ZM4751
ZM4752
ZM4753
ZM4754
ZM4755
ZM4756
ZM4757
ZM4758
ZM4759
ZM4760
ZM4761
ZM4762
ZM4763
ZM4764
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
±
10%.
Page 2 of 2
Rev. 02 : March 25, 2005
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