T4-LDS-0075, Rev. 3 (5/24/13)

©2013 Microsemi Corporation

Page 5 of 8

1N2970B – 1N3015B and

1N3993A – 1N3998A

NOTES:

1.

1N3993A - 1N3998A and 1N2970B – 1N3015B series are +/- 5% tolerance. If a tighter tolerance is required, consult factory.

2.

The electrical characteristics are measured after allowing the device to stabilize for 90 seconds with 30

3.

resulting from low level noise signals. A curve showing the variation of Zener impedance vs. Zener current for three

representative types is shown in Figures 2 and 3. Also see Microsemi MicroNote 202.

4.

diodes. The values shown are calculated for the worst case that is a unit of +/-5% tolerance at the high voltage end of its

impedance and the increase in junction temperature as power dissipation approaches 10 watts.