RF PIN diode pair in SOT-23 — what it is and where it fits
The Infineon BAR6304E6327HTSA1 is a silicon PIN diode configured as a single pair in series, housed in a three-lead SOT-23-3 package (PG-SOT23). The series pair arrangement is common in RF switch and attenuator circuits where two diodes share a common node, reducing PCB area and parasitic inductance compared to two discrete diodes. The part is rated for a peak reverse voltage of 50 V and a maximum forward current of 100 mA, with a power dissipation ceiling of 250 mW. At 10 mA bias and 100 MHz, the on-state resistance is 1 Ohm; off-state capacitance measures 0.3 pF at 5 V reverse bias and 1 MHz. These numbers place it in the standard-signal RF switching class — suitable for antenna switches, T/R switches, step attenuators, and limiter stages up to several GHz, where the low capacitance preserves isolation and the low resistance keeps insertion loss under a few tenths of a dB.
Active lifecycle — no LTB risk on this BOM line
The BAR6304E6327HTSA1 carries an active product status and is ROHS3 compliant. There is no end-of-life notice or last-time-buy window to track. For a BOM line that needs a standard RF PIN diode in SOT-23, this part is a straightforward fit with no supply-chain expiry date.