DESCRIPTION
The UM4000 and UM4900 series features high power PIN diodes with long carrier lifetimes and thick I-regions. They are especially suitable for use in low distortion switches and attenuators, in HF through S band frequencies. While both series are electrically equivalent, the UM4900 series have higher power ratings due to a shorter thermal path between the chip and package. High charge storage and long carrier lifetime enable high RF levels to be controlled with relatively low bias current.

KEY FEATURES
◾ Voltage ratings to 1000 V
◾ Power dissipation to 37.5 W
◾ Series resistance rated at 0.5 Ω
◾ Carrier lifetime greater than 5 µs
◾ Non cavity design
◾ Thermally matched configuration
◾ Low capacitance at 0 V bias
◾ Low conductance at 0 V bias
◾ Compatible with automatic insertion equipment

APPLICATIONS/BENEFITS
◾ Isolated stud package available
◾ Surface mount package available