1500 WATT LOW CAPACITANCE

SURFACE MOUNT TRANSIENT

VOLTAGE SUPPRESSOR

S C O T T S DA L E D I V I SI ON

SMCGLCE6.5 thru SMCGLCE170A, e3

SMCJLCE6.5 thru SMCJLCE170A, e3

GRAPHS

Test wave form

parameterxs

tp – Pulse Time – sec

FIGURE 2 PULSE WAVEFORM

FIGURE 1 PEAK PULSE POWER vs. PULSE TIME

FIGURE 3 DERATING CURVE

SCHEMATIC APPLICATIONS

The TVS low capacitance device configuration is shown in Figure 4. As a further option for unidirectional applications, an additional low

capacitance rectifier diode may be used in parallel in the same polarity direction as the TVS as shown in Figure 5. In applications where random

high voltage transients occur, this will prevent reverse transients from damaging the internal low capacitance rectifier diode and also provide a

low voltage conducting direction. The added rectifier diode should be of similar low capacitance and also have a higher reverse voltage rating

“SMBGLCR80” depending on the terminal configuration desired. If using two (2) low capacitance TVS devices in anti-parallel for bidirectional

applications, this added protective feature for both directions (including the reverse of each rectifier diode) is inherently provided in Figure 6. The

unidirectional and bidirectional configurations in Figure 5 and 6 will both result in twice the capacitance of Figure 4.

Microsemi

Scottsdale Division

Page 3

Copyright

2005

6-06-2005 REV D

FIGURE 4

FIGURE 5

FIGURE 6

TVS with internal low

Optional Unidirectional

Optional Bidirectional

capacitance rectifier diode

configuration (TVS and

configuration (two TVS

separate rectifier diode)

devices in anti-parallel)

in parallel)

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503