All products are sold to the commercial specifications shown, for any additional reliability testing or extended parameters, please consult the factory.
contact semitron on: telephone: +44 (0)1793 724000 fax: +44 (0)1793 720401
56
Voltage Range7.5 - 75 Volts
5000 Watt Peak Pulse Power
100 Watt Steady State @ 25C
75 Watt Steady State @ 65C
FEATURES
Glass Passivated Junction
5000 Watt surge capability at 1 mS
Typically IR less than 1A above 10V
Excellent clamping capability
Stud Cathode & Stud Anode
100% Tested
Operated temperature -55C to +175C
BZY91 series
BZY91 series
MECHANICAL CHARACTERISTICS
CASE: Hermetically sealed D05 outline
Finish: All external surfaces are corrosion
resistant and terminal solderable
Polarity: Indicated by direction of zener symbol
Weight: 14 grammes excluding mounting
kit (approx)
ELECTRICAL DATA
Forward voltage Vf 1.5V max @ If
10A 300S square wave pulse
Vz measured with pulse
100S and
duty cycle
0.001
Rz determined with DC plus 10%
superimposed AC @ 1KHz
ELECTRICAL SPECIFICATIONS @ Tamb 25C
STUD
STUD
ZENER VOLTAGE
ZENER MAXIMUM REVERSE
CATHODE
ANODE
V
z (Volts) @ Iz
RESISTANCE
LEAKAGE I
R
@ V
R
PART NUMBER
PART NUMBER
Iz
Rz (
) @ Iz
MIN
MAX
(A)
Typ
Max
(mA) (Volts)
BZY91C7V5
BZY91C7V5R
7.0
7.9
5.0
0.04
0.2
5.0
5.1
BZY91C8V2
BZY91C8V2R
7.7
8.7
5.0
0.06
0.3
5.0
5.6
BZY91C9V1
BZY91C9V1R
8.5
9.6
2.0
0.08
0.4
5.0
6.2
BZY91C10*
BZY91C10R
9.4
10.6
2.0
0.08
0.4
1.0
6.8
BZY91C11
BZY91C11R
10.4
11.6
2.0
0.08
0.4
1.0
7.5
BZY91C12*
BZY91C12R
11.4
12.7
2.0
0.10
0.5
1.0
8.2
BZY91C13
BZY91C13R
12.4
14.1
2.0
0.10
0.5
1.0
9.1
BZY91C15*
BZY91C15R*
13.8
15.6
2.0
0.12
0.6
1.0
10.0
BZY91C16
BZY91C16R
15.3
17.1
2.0
0.12
0.6
1.0
11.0
BZY91C18
BZY91C18R
16.8
19.1
2.0
0.14
0.7
1.0
12.0
BZY91C20*
BZY91C20R
18.8
21.2
1.0
0.16
0.8
1.0
13.0
BZY91C22
BZY91C22R*
20.8
23.3
1.0
0.16
0.8
1.0
15.0
BZY91C24*
BZY91C24R
22.7
25.9
1.0
0.18
0.9
1.0
16.0
BZY91C27
BZY91C27R*
25.1
28.9
1.0
0.20
1.0
1.0
18.0
BZY91C30*
BZY91C30R
28.0
32.0
1.0
0.22
1.1
1.0
20.0
BZY91C33*
BZY91C33R
31.0
35.0
1.0
0.24
1.2
1.0
22.0
BZY91C36
BZY91C36R
34.0
38.0
1.0
0.26
1.3
1.0
24.0
BZY91C39*
BZY91C39R
37.0
41.0
0.5
0.28
1.4
1.0
27.0
BZY91C43*
BZY91C43R
40.0
46.0
0.5
0.30
1.5
1.0
30.0
BZY91C47
BZY91C47R
44.0
50.0
0.5
0.34
1.7
1.0
33.0
BZY91C51
BZY91C51R
48.0
54.0
0.5
0.36
1.8
1.0
36.0
BZY91C56*
BZY91C56R
52.0
60.0
0.5
0.4
2.0
1.0
39.0
BZY91C62
BZY91C62R*
58.0
66.0
0.5
0.44
2.2
1.0
43.0
BZY91C68
BZY91C68R
64.0
72.0
0.5
0.48
2.4
1.0
47.0
BZY91C75*
BZY91C75R
70.0
79.0
0.5
0.51
2.6
1.0
51.0
* Prefered voltages.
All products are sold to the commercial specifications shown, for any additional reliability testing or extended parameters, please consult the factory.
contact semitron on: telephone: +44 (0)1793 724000 fax: +44 (0)1793 720401
57
STUD CATHODE NORMAL
STUD ANODE REVERSE
All Dimensions in mm
AVAILABLE IN THE
FOLLOWING
CONFIGURATIONS
3.56
4.45
1
1.43 Max
25.4 Max
17.4
Max AF
1/4-28
UNF 2A
13.5 Max AF
9.53
Max
11.5
Max
1
s
0 1Kw
1
10
100
10
s
100
s
Pulse Time (tp)
Note: Peak power defined as peak voltage times peak current
Peak Pulse Power (Pp) in kW
Square wave pulse
Exponential wave form
1ms
10ms
100ms
-100
-50
0
50
100
150
200
25
0
50
75
100
Tmb (
C)
Ptot
max
(W)
Non Repetitive peak pulse power rating curve
Maximum total dissapation plotted against
mounting base temp
Voltage
BZY91C
N = Stud Cathode Normal
R = Stud Anode Reverse
ORDERING
INFORMATION
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