View 1n4148 1n4448 4 datasheet:

DISCRETE SEMICONDUCTORS DATA SHEET M3D176 1N4148; 1N4448 High-speed diodes Product specification 2002 Jan 23 Supersedes data of 1999 May 25 Philips Semiconductors Product specification High-speed diodes 1N4148; 1N4448 FEATURES DESCRIPTION • Hermetically sealed leaded glass The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar SOD27 (DO-35) package technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages. • High switching speed: max. 4 ns • General application • Continuous reverse voltage: max. 75 V • Repetitive peak reverse voltage: handbook, halfpage k a max. 100 V MAM246 • Repetitive peak forward current: max. 450 mA. The diodes are type branded. APPLICATIONS Fig.1 Simplified outline (SOD27; DO-35) and symbol.