View bat154 datasheet:

Silicon Schottky Diodes BAT 15- … 4 Low barrier diodes For mixer applications Hermetically sealed ceramic packages For frequencies up to 40 GHz ESD: Electrostatic discharge sensitive device, observe handling precautions! Type Frequency Ordering Code Pin Configuration Package1) band (GHz) BAT 15-014 … 4 (S) Q62702-D3429 Cathode: black dot, T1 heat sink BAT 15-044 … 8 (C) Q62702-D3431 BAT 15-074 … 12.4 (X) Q62702-D3433 BAT 15-104 … 18 (Ku) Q62702-D3435 BAT 15-124 … 40 (Ka) Q62702-D3437 Maximum Ratings Parameter Symbol Values Unit Reverse voltage VR 3V Forward current BAT 15-014 … BAT 15-044 IF 100 mA BAT 15-074 … BAT 15-124 50 Junction temperature Tj 175 ?C Storage temperature range Tstg – 65 … + 150 Operating temperature range Top – 65 … + 150 1) For detailed info