1N8255 – 1N8257 Series Subminiature Alternative to the 1N5811 Series 4 - 6A, 25 nS Hyper Fast Rectifiers Enhancements over 1N5811: - Up to 200 volts - Subminiature version: ~1/2 the size - Lower Reverse Leakage: IR (@ 25°C) = 2 µA IR (@ 125°C) = 500 µA High Surge Current: 125 A max Low Forward Voltage Drop: 0.95 V @ 6A Low Thermal Resistance: RθJE = 8.5°C/W Hermetically Sealed, Void Free Ceramic Frit Construction High Temperature Category I Eutectic Metallurgical Bond TX, TXV, and S Level Screening Available 2 1N8257SMS vs. 1N5811US Comparison Electrical Characteristics 1N5811US 1N8257SMS 150 V 200 V 6A 6A 125 A 125 A 0.865 V (@ 3 A) 0.875 V (@ 4 A) 0.925 V (@ 6 A) 0.810 V (@ 1 A) 0.875 V (@ 2.5 A) 0.900 V (@ 4 A) 0.950 V @ 6 A) IR @ 150V, 25°C 5 µA 2 µA IR @ 150V, 125°C 525 µA 500 µA tRR 30 nS 25 nS 6.5°C/W 8.5°C/W VRRM, VRWM, VR IO IFSM VF RƟJE Package Comparison 1N8257 vs. 1N5811 1N5811 (0.75 gm, typ) 1N5811US (0.54 gm, typ) 1N8257 (0.4 gm, typ) 1N8257US (0.35 gm, typ) 4 JANS1N7068 Surface Mount Solution for 1N6657 - 1N6659 MIL-PRF-19500 / 616 1N6659 1N7068 (x2) = Absolute Maximum Ratings Parameter 1N7068 1N6659 Per leg IO 10 A 15 A IFSM 350 A 150 A VRWM 200 V 200 V IR 500 µA 1 mA @150°C @100°C RθJEC 4.5°C/W 2.3°C/W tRR 30 nsec 35 nsec VF @ 10A 0.95V 1.00V 5 1N7066 – 1N7068 Series MIL-PRF-19500 / 768 10 A, 30 nS Hyper Fast Rectifiers 100 – 200 Volts High Surge Current: 350 A maximum Hermetically Sealed Void Free Ceramic Frit Construction High Temperature Category I Eutectic Metallurgical Bond Low Forward Voltage Drop: 0.95V @ 10A Low reverse leakage current: - 1 µA @ rated VR, 25°C - 500 µA @ rated VR, 150°C Solid Silver Leads Replacement for 1N6659 (2 x 1N7068SMS = 1N6659) TX, TXV, and S Level Screening Available 6 Wafer Fab Facility Made and Screened in the United States 7