1N5311CSM MECHANICAL DATA Dimensions in mm(inches) 2.54 ± 0.13 (0.10 ± 0.005) 0.51 ± 0.10 (0.02 ± 0.004) VOLTAGE REGULATOR DIODE IN A CERAMIC SURFACE MOUNT PACKAGE FOR HI–REL APPLICATIONS 0.31 rad. (0.012) 2 0.76 ± 0.15 (0.03 ± 0.006) 3 1 1.91 ± 0.10 (0.075 ± 0.004) A 0.31 rad. (0.012) 3.05 ± 0.13 (0.12 ± 0.005) A= 1.40 (0.055) max. 1.02 ± 0.10 (0.04 ± 0.004) FEATURES • HERMETIC CERAMIC SURFACE MOUNT PACKAGE LCC1 PACKAGE (SOT23 Compatible) • SCREENING OPTIONS AVAILABLE Underside View Pad 1 – Anode Pad 2 – N/C Pad 3 – Cathode ABSOLUTE MAXIMUM RATINGS PTOT Power Dissipation TAMB = 25°C 400mW Derate above 25°C 3.2mW/°C TOP Maximum Operating Ambient Temperature –65 to +150°C TSTG Storage Temperature Range –65 to +175°C RθJA Thermal Resistance Junction to Ambient 312°C/W ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise stated) Parameter Test Conditions Min. Typ. Max. 3.24 3.60 3.96 VZ Zener Voltage IPINCH (mA) @ VS = 25.0V VL Maximum Limiting Voltage IL = 0.8 IPINCH(min) ZS* Zk* Minimum Dynamic Impedance VS = 25.0V 0.265 Minimum Knee Impedance VK = 6.0V 0.020 2.50 Units V mΩ *Z S is dervived by superimposing a 90Hz RMS signal equal to 10% of Vs onto Vs. Similarily, ZK is dervived by superimposing a 90Hz RMS signal equal to 10% of Vs onto VK. Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to verify that datasheets are current before placing orders. Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: [email protected] Website: http://www.semelab.co.uk Document Number 3583 Issue 1