LM299H

LM299H, precision, temperature-stabilized monolithic zener, 40V, 20 mA, TO, National Semiconductor

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Price:: US $12.00~13.00 / piece [Get Latest Price]

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Qty (lots)	Price/lot
1 ~ 10 :	13.00 / Piece
10 ~ 100 :	12.50 / Piece
100 ~ 1000 :	12.00 / Piece

PartNumber:: LM299H

Brand:: National Semiconductor - NS | Pack: | D/C: 10+

Availability:: Supply Ability: 1000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

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Products Upload time: 2013-08-29

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Part Number:LM299H
US $12.00 - 13.00
Quantity:

piece

Product Summary

The LM299H is a precision, temperature-stabilized monolithic zener. The LM299H is offering temperature coefficients a factor of ten better than high quality reference zeners. Constructed on a single monolithic chip is a temperature stabilizer circuit and an active reference zener. The active circuitry reduces the dynamic impedance of the zener to about 0.5 Ω and allows the zener to operate over 0.5 mA to 10 mA current range with essentially no change in voltage or temperature coefficient. Further, a new subsurface zener structure gives low noise and excellent long term stability compared to ordinary monolithic zeners. The package of the LM299H is supplied with a thermal shield to minimize heater power and improve temperature regulation.

Parametrics

LM299H absolute maximum ratings: (1)Temperature Stabilizer Voltage: 40V; (2)Reverse Breakdown Current: 20 mA; (3)Forward Current: 1 mA; (4)Reference to Substrate Voltage V(RS): 40V; (5)Operating Temperature Range: -55℃ to +125℃; (6)Storage Temperature Range: -55℃ to +150℃; (7)Soldering Information, TO-92 package (10 sec.): +260℃.

Features

LM299H features: (1)Guaranteed 0.0001%/℃ temperature coefficient; (2)Low dynamic impedance — 0.5Ω; (3)Initial tolerance on breakdown voltage — 2%; (4)Sharp breakdown at 400 μA; (5)Wide operating current — 500 μA to 10 mA; (6)Wide supply range for temperature stabilizer; (7)Guaranteed low noise; (8)Low power for stabilization — 300 mW at 25℃; (9)Long term stability — 20 ppm; (10)Proven reliability, low-stress packaging in TO-46 integrated-circuit hermetic package, for low hysteresis after thermal cycling. 33 million hours MTBF at TA = +25℃ (TJ = +86℃); (11)Certified long term stability available; (12)MIL-STD-883 compliant.