UMA5.0A Datasheet, PDF (3/4 Pages) Microsemi Corporation – ULTRAMITE SURFACE MOUNT 500 Watt Transient Voltage Suppressor 5.0 to 170 V

SCOTTSDALE DIVISION
UMA5.0A thru UMA170CA
ULTRAMITE™ SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
Symbol
V_WM
P_PP
V_(BR)
I_D
SYMBOLS & DEFINITIONS
Definition
Working Peak (Standoff) Voltage
Peak Pulse Power
Breakdown Voltage
Standby Current
Symbol
I_PP
V_C
I_(BR)
Definition
Peak Pulse Current
Clamping Voltage
Breakdown Current for V_(BR)
GRAPHS
tw Microseconds
Figure 1 – Peak Pulse Power (P_PP) – Kilowatts versus
Pulse Width (t_W) - Microseconds
Test wave form
parameterxs
tr = 10µsec.
tp = 1000µsec.
FIGURE 2
Pulse Waveform for Exponential Surge
Lead Temperature ^oC
FIGURE 3
Derating Curve
V_(BR) - Breakdown Voltage – Volts
FIGURE 4
Typical Capacitance vs. Breakdown Voltage
Copyright  2002
MSCUMA5.0.PDF 10-16-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]
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