Application Note Vishay General Semiconductor Typical TVS Applications Circuit Breaker Options + 115 VAC 28 V Aircraft Bus 300 VAC Avionics Package Figure 1. 28 V D.C. Supply Protection Figure 6. Circuit Protection from Overvoltage Supply + 24 VDC Load - DC Motor Figure 2. A.C. Supply Protection Figure 7. EMI limiting R1 + 115 V Load 24 VDC - R1 R1 24 VDC Relay Coil Relay Coil Spoiler Resistor Figure 3. Breakdown Voltage Rectifier Protection Figure 8. Relay and Contractor Transient Limiting Balanced Line Unbalanced Line Load 220 V Figure 4. Breakdown Voltage Rectifier Protection 115 V D1 D1 D1 D1 Gnd + + - ≤ 30 pF - ** Load - When signal is on a carrier which doesn’t change polarity To improve Insertion Loss Low Capacitance TVS Alternating Signal **LCE/SAC Figure 5. 115 V A.C. Supply Protection www.vishay.com 266 Document Number: 88439 Revision: 07-May-02