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JAN1N2987BRE3 View Datasheet(PDF) - Microsemi Corporation

Part Name
Description
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JAN1N2987BRE3
Microsemi
Microsemi Corporation Microsemi
JAN1N2987BRE3 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 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 oC base temperature.
3. The Zener impedance (ZZT) is derived from the 60 Hz ac voltage, which results when an ac current having an rms value equal
to 10% of the dc Zener current (IZT or IZK) is superimposed on IZT or IZK. When making Zener impedance measurements at
the IZK test point, it may be necessary to insert a 60 Hz band pass filter between the diode and voltmeter to avoid errors
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. Derate IZ linearly to 0.0 mA at +175°C, for TC > +55°C. These values of IZM may be exceeded in the case of individual
diodes. The values shown are calculated for the worst case that is a unit of +/-5% tolerance at the high voltage end of its
tolerance range. Allowance has also been made for the rise in Zener voltage above VZT, which results from Zener
impedance and the increase in junction temperature as power dissipation approaches 10 watts.
T4-LDS-0075, Rev. 3 (5/24/13)
©2013 Microsemi Corporation
Page 5 of 8
 

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