RF switch core — series PIN pair in SC-70
The Nexperia BAP64-04W,115 is a PIN diode configured as a 1 Pair Series Connection, housed in the SC-70 (SOT-323) package. It is designed for RF switching and attenuator applications where low distortion and fast switching are needed. Key parametrics: 100 V peak reverse voltage, 100 mA maximum forward current, and 240 mW power dissipation. The series pair arrangement simplifies PCB layout for SPDT or series-shunt topologies.
Low capacitance, low resistance — RF performance anchors
Capacitance is 0.35 pF at 20 V reverse bias and 1 MHz — this low value keeps isolation high through UHF bands. Series resistance is 1.35 Ohm at 100 mA forward current and 100 MHz, which sets the insertion loss floor in the on-state. Operating junction temperature spans -65°C to 150°C, covering automotive under-hood and outdoor telecom enclosures without derating concerns.
The small footprint suits high-density RF boards where board space is tight.