A voltage of 4.85% is considered to be the maximum that can be output (Tol).Setting the working test voltage to 40mA is required to operate this device.
JAN1N4970US Features
the working test voltage to 40mA minimal dynamic impedance is 40mA
JAN1N4970US Applications
There are a lot of Semtech Corporation JAN1N4970US applications of zener single diodes.