IN4728A Datasheet, PDF (1/2 Pages) Fairchild Semiconductor – One Watt Zeners

1N4728A - 1N4752A Series One Watt Zeners
Absolute Maximum Ratings* TA = 25°C unless otherwise noted
Param eter
V a lu e
U nits
S torage Tem perature R ange
M axim um Junction O perating T em perature
Lead Tem perature (1/16” from case for 10 seconds)
T otal D evice D issipation
D erate above 50°C
T herm al resistance Junction to Lead
T herm al resistance Junction to A m bient
Surge Power**
-65 to +200
+ 200
+ 230
1.0
6.67
53.5
100
10
°C
°C
°C
W
m W /°C
°C /W
°C /W
W
*These ratings are limiting values above which the serviceability of the diode may be impaired.
**Non-recurrent square wave PW= 8.3 ms, TA= 55 degrees C.
NOTES:
1) These ratings are based on a maximum junction temperature of 200 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed
or low duty cycle operations.
Tolerance: A = 5%
DO-41
Electrical Characteristics TA = 25°C unless otherwise noted
Device
V_Z
(V)
Z_{Z @} I_ZT
(Ω)
(mA)
Z_{ZK @} I_ZK
(Ω)
(mA)
V_{R @} I_R
(V)
(µA)
1N4728A
1N4729A
1N4730A
1N4731A
3.3
10
76
400
1.0
1.0
100
3.6
10
69
400
1.0
1.0
100
3.9
9.0
64
400
1.0
1.0
50
4.3
9.0
58
400
1.0
1.0
10
1N4732A
1N4733A
1N4734A
1N4735A
4.7
8.0
53
500
1.0
1.0
10
5.1
7.0
49
550
1.0
1.0
10
5.6
5.0
45
600
1.0
2.0
10
6.2
2.0
41
700
1.0
3.0
10
1N4736A
1N4737A
1N4738A
1N4739A
6.8
3.5
37
700
1.0
4.0
10
7.5
4.0
34
700
0.5
5.0
10
8.2
4.5
31
700
0.5
6.0
10
9.1
5.0
28
700
0.5
7.0
10
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
10
7.0
25
700
0.25
7.6
10
11
8.0
23
700
0.25
8.4
5.0
12
9.0
21
700
0.25
9.1
5.0
13
10
19
700
0.25
9.9
5.0
15
14
17
700
0.25
11.4
5.0
1N4745A
1N4746A
1N4747A
1N4748A
16
16
15.5
700
0.25
12.2
5.0
18
20
14
750
0.25
13.7
5.0
20
22
12.5
750
0.25
15.2
5.0
22
23
11.5
750
0.25
16.7
5.0
1N4749A
1N4750A
1N4751A
1N4752A
24
25
10.5
750
0.25
18.2
5.0
27
35
9.5
750
0.25
20.6
5.0
30
40
8.5
1,000
0.25
22.8
5.0
33
45
7.5
1,000
0.25
25.1
5.0
V_F Foward Voltage = 1.2 V Maximum @ IF = 200 mA for all 1N4700 series
I_SURGE
(mA)
1,380
1,260
1,190
1,070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
I_ZM
(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
©1997 Fairchild Semiconductor Corporation
1N4700A Rev. B