The AVRQ-5-B provides 1.5 kV pulses with linear leading edges, followed by a slower exponential decay back to zero. The transition time (10%-90%) of the leading edge is less than 10 ns into a non-capacitive load, providing transition rates of up to 120 kV/us. The transition time may be increased up to 50 ns by adding capacitance across the load. The fast transition rates make the AVRQ-5-B ideal for testing the common mode transient immunity of cutting-edge optocouplers and other devices.