Zeners/Studs
BZY91 Series
FEATURES
•
Voltage range 7.5 - 75 Volts
•
5000 Watt peak pulse power
•
100 Watt steady state @ 25°C
•
75 Watt steady state @ 65°C
•
Glass passivated junction
•
5000 Watt surge capability at 1 ms
•
Typically IR less than1 µA above 10V
•
Excellent clamping capability
•
Stud cathode & stud anode
•
Operating temperature -55°C to +175°C
•
100% tested
MECHANICAL CHARACTERISTICS
•
Case: Hermetically sealed DO5 outline
•
Finish: All external surfaces are corrosion resistant and
AVAILABLE IN THE
FOLLOWING CONFIGURATIONS
terminal solderable
•
Polarity: Indicated by direction of zener symbol
•
Weight: 14 grammes excluding mounting kit (approx)
•
Torque Setting 30inch/lb
ELECTRICAL DATA
•
Forward voltage Vf 1.5V max @ If
≤
10A 300µS square
wave pulse
•
Vz measured with pulse
≤
100µS and duty cycle
≤
0.001
•
Rz determined with DC plus 10% superimposed AC @ 1KHz
STUD CATHODE NORMAL
ORDERING INFORMATION
BZY91C
Voltage
N = Stud Cathode Normal
R = Stud Anode Reverse
STUD ANODE REVERSE
All dimensions in mm
322
w w w. l i t t e l f u s e . c o m
Zeners/Studs
BZY91 Series
100
100
Peak Pulse Power - Pp (kW)
Exponential wave-form
10
Square wave-pulse
1
Ptot
max
(W)
75
50
25
0.1
100ns
1µs
10µs
100µs
1ms
10ms
0
-100
-50
0
50
Tmb (°C)
100
150
200
7
ZENERS/STUDS
Pulse Time (tp)
Figure 1. Non-repetitive peak pulse power rating curve
Figure 2. Maximum total dissapation plotted against mounting
base temp
ELECTRICAL SPECIFICATION @ Tamb 25°C
Stud
Cathode
Part Number
BZY91C7V5
BZY91C8V2
BZY91C9V1
BZY91C10*
BZY91C11
BZY91C12*
BZY91C13
BZY91C15*
BZY91C16
BZY91C18
BZY91C20*
BZY91C22
BZY91C24*
BZY91C27
BZY91C30*
BZY91C33*
BZY91C36
BZY91C39*
BZY91C43*
BZY91C47
BZY91C51
BZY91C56*
BZY91C62
BZY91C68
BZY91C75*
Stud
Anode
Part Number
BZY91C7V5R
BZY91C8V2R
BZY91C9V1R
BZY91C10R
BZY91C11R
BZY91C12R
BZY91C13R
BZY91C15R*
BZY91C16R
BZY91C18R
BZY91C20R
BZY91C22R*
BZY91C24R
BZY91C27R*
BZY91C30R
BZY91C33R
BZY91C36R
BZY91C39R
BZY91C43R
BZY91C47R
BZY91C51R
BZY91C56R
BZY91C62R*
BZY91C68R
BZY91C75R
Zener Voltage
V
Z
(Volts) @
I
Z
MIN
7.0
7.7
8.5
9.4
10.4
11.4
12.4
13.8
15.3
16.8
18.8
20.8
22.7
25.1
28.0
31.0
34.0
37.0
40.0
44.0
48.0
52.0
58.0
64.0
70.0
MAX
7.9
8.7
9.6
10.6
11.6
12.7
14.1
15.6
17.1
19.1
21.2
23.3
25.9
28.9
32.0
35.0
38.0
41.0
46.0
50.0
54.0
60.0
66.0
72.0
79.0
I
Z
(A)
5.0
5.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Zener
Resistance
R
Z
(Ω) @ I
Z
Typ
0.04
0.06
0.08
0.08
0.08
0.10
0.10
0.12
0.12
0.14
0.16
0.16
0.18
0.20
0.22
0.24
0.26
0.28
0.30
0.34
0.36
0.4
0.44
0.48
0.51
Maximum Reverse
Leakage IR @ VR
Max
0.2
0.3
0.4
0.4
0.4
0.5
0.5
0.6
0.6
0.7
0.8
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.7
1.8
2.0
2.2
2.4
2.6
(mA)
5.0
5.0
5.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
(Volts)
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10.0
11.0
12.0
13.0
15.0
16.0
18.0
20.0
22.0
24.0
27.0
30.0
33.0
36.0
39.0
43.0
47.0
51.0
* Preferred voltages.
w w w. l i t t e l f u s e . c o m
323
