LM199H

The LM199H is one member of the LM199 family which is designed as the precision, temperature-stabilized monolithic zener that is packaged in a standard hermetic TO-46 package inside a thermal shield. And this device can be used in almost any application in place of ordinary zeners with improved performance.

Features of the LM199H are:(1)Guaranteed 0.0001%/°C temperature coefficient; (2)Low dynamic impedance - 0.5W; (3)Initial tolerance on breakdown voltage - 2%; (4)Sharp breakdown at 400 A; (5)Wide operating current - 500 A to 10 mA; (6)Wide supply range for temperature stabilizer; (7)Guaranteed low noise; (8)Low power for stabilization - 300 mW at 25°C; (9)Long term stability - 20 ppm; (10)Proven reliability, low-stress packaging in TO-46 integrat-ed-circuit hermetic package, for low hysteresis after thermal cycling. 33 million hours MTBF at TA =+25°C (TJ = +86°C); (11)Certified long term stability available; (12)MIL-STD-883 compliant.

The absolute maximum ratings of the LM199H can be summarized as:(1)temperature stabilizer voltage:40 V;(2)reverse breakdown current:20 mA;(3)forward current:1 mA;(4)reference to substrate voltage V(RS):40 V;(5)operating temperature range:-55°C to +125°C;(6)storage temperature range:-55°C to +150°C;(7)soldering information TO-92 package (10 sec.):+260°C;(8)soldering information TO-46 package (10 sec.):+300°C. If you want to know more information such as the electrical characteristics about the LM199H, please download the datasheet in www.seekic.com or www.chinaicmart.com .