1N4772A

The 1N4772A is designed as 9.1 V temperature compensated zener reference diodes.

1N4772A has three features. (1) Zener voltage 9.1V +/- 5%. (2) Temperature coefficient range is 0.01%/°C to 0.0005%/°C. (3) Radiation hardened devices available. That are all the main features.

Some absolute maximum ratings of 1N4772A have been concluded into several points as follow. (1) Its operating temperature range is from -65°C to +175°C. (2) Its DC power dissipation would be 250 mW. (3) Its power derating is 2 mW/°C above 50°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics about 1N4772A. (1) Its zener voltage would be 9.1 V. (2) Its zener test current would be 1.0 mA. (3) Its maximum dynamic inpedance would be 200 ohms. Measured by superimposing Iz ac rms on Iz DC at +25°C where Iz ac rms = 10% Iz DC. (4) Its maximum voltage temperature stability would be 28mV. Maximum allowable change between any two discrete temperatures over the specified temperature range. Voltage measurements to be performed 15 seconds after application of DC current. (5) Its temperature range would be from -55°C to +100°C. (6) Its effective temperature compensations would be 0.002 %/°C. And so on.

And some mechanical characteristics about 1N4772A. (1) Its case is hermetically sealed glass case DO-7. (2) Its finish is all external surfaces are corrosion resistant and leads solderable. (3) Its thermal resistance is 300°C/W typical junction to lead at 0.375 inches from body. (4) Its weight is 0.2 grams. (5) Its polarity is diode to be operated with the banded end positive with respect to the opposite end. (6) Its mounting position would be any. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!