RT100KP33A thru RT100KP400CA, e3
Preferred 100 kW Transient Voltage
Suppressor for AIRCRAFT POWER
t – time
Note: frequency is 1MHz
FIGURE 7 – Waveform 3
t – time
FIGURE 8 – Waveform 4
t - Time
FIGURE 9 – Waveform 5A
NOTE: The 1MHz damped oscillatory waveform (3) has an effective pulse width of 4 μs. Equivalent peak pulse power at each of the pulse widths represented in
RTCA/DO-160E for waveforms 3, 4 and 5A (above) have been determined referencing Figure 1 herein as well as Application Notes 104 and 120 (found on
Microsemi’s website) and are listed below.
WAVEFORM PULSE WIDTH PEAK PULSE Peak Pulse Current
Conversion Factor *
μs from Rated IPP
kW at 6.4/69 µs
5A 40/120 70
* Multiply by the conversion factor shown with reference to the maximum rated IPP in the Electrical Characteristics Table on page 2.
Note: High current fast rise-time transients of 250 ns or less can more than triple the VC from parasitic inductance effects (V= -Ldi/dt) compared to the
clamping voltage shown in the initial Electrical Characteristics on page 1 as also described in Figures 5 and 6 herein.
Also see MicroNotes 127, 130, and 132 on the Microsemi website (Support section) for further information on Transient
Voltage Suppressors with reference to aircraft industry specification RTCA/DO-160E.
Copyright © 2007
10-03-2007 Rev B
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