5KP5.0 thru 5KP188A
Vishay Semiconductors
formerly General Semiconductor
Application
The 5KP series of high power transient voltage sup- They are able to withstand high levels of peak current
pressors were designed to be used on the output of while allowing a circuit breaker to trip or a fuse blow
switching power supplies. These devices may be before shorting. This will enable the user to reset the
used to replace crowbar circuits. Both the 5 and 10 breaker or replace the fuse and continue operation.
percent voltage tolerances are referenced to the For this type operation, it is recommended that a suf-
power supply output voltage level.
ficient mounting surface be used for dissipating the
heat generated by the Transient Voltage Suppressor
during the transient or over-voltage condition.
Ratings and Characteristics Curves
(T = 25 °C unless otherwise specified)
A
150
100
Non-repetitive pulse
waveform shown in
TJ = 25 °C
Pulse Width (td)
tr = 10 µsec.
Fig. 3 T = 25 °C
is defined as the point
where the peak current
decays to 50 % of IPPM
A
Peak Value
IPPM
100
50
0
10
Half Value - IPP
IPPM
2
1.0
0.1
10/1000 µsec. Waveform
as defined by R.E.A.
td
1.0
3.0
4.0
0
2.0
t - Time (ms)
0.1µs 1.0µs 10µs
td, Pulse Width
Figure 1. Peak Pulse Power Rating Curve
100µs 1.0ms 10ms
Figure 3. Pulse Waveform
100
75
50
25
0
100,000
T
= 25 °C
J
f = 1 MHz
Vsig = 50 m Vp-p
Measured at
Zero Bias
10,000
1,000
100
Measured at
Stand-off Voltage,
V
WM
1
10
100 200
0
25 50 75 100 125 150 175 200
- Ambient Temperature (°C)
V
WM
- Reverse Stand-off Voltage (V)
T
A
Figure 2. Pulse Power Derating Curve
Figure 4. Typical Junction Capacitance
www.vishay.com
4
Document Number 88308
Rev. 1.2, 27-Oct-04