March 2010
1N5985B - 1N6025B
Zener Diodes
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings * TA=25°C unless otherwise noted
Symbol
Parameter
Value
Units
Power Dissipation
@ TL ≤ 75°C, Lead Length = 3/8”
500
mW
PD
Derate above 75°C
4.0
mW/°C
°C
TJ, TSTG
Operating and Storage Temperature Range
-65 to +200
* These ratings are limiting values above which the serviceability of the diode may be impaired.
Electrical Characteristics TA=25°C unless otherwise noted
VZ (V) @ IZ (Note 1)
Zener Impedance
leakage Current
Test Current
IZ (mA)
IZM (mA)
(Note 2)
Device
ZZ @ IZ ZK @ IZK = 250μA
Z
IR
VR
(V)
Min.
Typ.
Max.
(Ω)
(Ω)
(mA)
1N5985B
2.58
2.4
2.7
3
3.3
3.6
2.52
2.835
3.15
3.465
3.78
5
5
5
5
5
100
100
95
95
90
1800
1900
2000
2200
2300
100
75
50
25
15
1
1
1
1
1
208
185
167
152
139
1N5986B 2.565
1N5987B 2.85
1N5988B 3.135
1N5989B 3.42
1N5990B 3.705
1N5991B 4.085
1N5992B 4.465
1N5993B 4.845
3.9
4.3
4.7
5.1
5.6
4.095
4.515
4.935
5.355
5.88
5
5
5
5
5
90
88
70
50
25
2400
2500
2200
2050
1800
10
5
3
2
2
1
1
1.5
2
128
116
106
98
1N5994B
5.32
3
89
1N5995B
1N5996B
1N5997B 7.125
1N5998B 7.79
1N5999B 8.645
5.89
6.46
6.2
6.8
7.5
8.2
9.1
6.51
7.14
7.875
8.61
5
5
5
5
5
10
8
7
7
10
1300
750
600
600
600
1
1
0.5
0.5
0.1
4
5.2
6
6.5
7
81
74
67
61
55
9.555
© 2010 Fairchild Semiconductor Corporation
1N5985B - 1N6025B Rev. C2
www.fairchildsemi.com
1
ROCHESTER [ Rochester Electronics ]
