Littelfuse BZY91C24R Zeners/stud Datasheet

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
AVAILABLE IN THE
FOLLOWING CONFIGURATIONS
MECHANICAL CHARACTERISTICS
• Case: Hermetically sealed DO5 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)
• 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
STUD CATHODE NORMAL
• Rz determined with DC plus 10% superimposed AC @ 1KHz
ORDERING INFORMATION
STUD ANODE REVERSE
BZY91C
All dimensions in mm
Voltage
N = Stud Cathode Normal
R = Stud Anode Reverse
322
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Zeners/Studs
BZY91 Series
100
75
Exponential wave-form
10
Ptot
max
(W)
Square wave-pulse
50
1
25
0.1
100ns
1µs
10µs
100µs
1ms
0
10ms
-100
-50
0
Pulse Time (tp)
50
100
150
200
Figure 2. Maximum total dissapation plotted against mounting
base temp
Figure 1. Non-repetitive peak pulse power rating curve
ELECTRICAL SPECIFICATION @ Tamb 25°C
Stud
Cathode
Part Number
Stud
Anode
Part Number
7
Tmb (°C)
Zener Voltage
VZ (Volts) @ IZ
Maximum Reverse
Leakage IR @ VR
Zener
Resistance
RZ (Ω) @ IZ
Typ
Max
(mA)
(Volts)
0.04
0.2
5.0
5.1
5.6
MAX
7.9
IZ
(A)
5.0
8.7
5.0
0.06
0.3
5.0
BZY91C7V5
BZY91C7V5R
MIN
7.0
BZY91C8V2
BZY91C8V2R
7.7
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
* Preferred voltages.
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323
ZENERS/STUDS
Peak Pulse Power - Pp (kW)
100