MIL-PRF-19500/548 F - MIL-PRF-19500/548F, PERFORMANCE SPECIFICATION SHEET: COUPLER, OPTO ELECTRONIC, SEMICONDUCTOR DEVICE, SOLID STATE, TYPES 4N47, 4N48, 4N49, 4N47A, 4N48A, 4N49A, 4N47U, 4N48U, 4N49U, 4N47BU, 4N48BU, AND 4N49BU, JAN, JANTX, JANTXV, AND JANS (15-SEP-2005)