50 WATT ZENER DIODES

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 3

Copyright

 2003

11-12-2003 REV A

SCOTTSD A L E DIVISION

1N3305 thru 1N3350B

and 1N4549B thru 1N4556B

See further notes on following page

See further notes on following page

NOTES:

1.

When using JEDEC numbers an R suffix should be used to signify reversed polarity. The suffixes A and B indicate tolerances

NOTES:

1.

When using JEDEC numbers an R suffix should be used to signify reversed polarity. The suffixes A and B indicate tolerances

of 10% and 5% respectively. No suffix or just R denotes +/-20% tolerance. Example: 1N3319RB is a REVERSED polarity,

of 10% and 5% respectively. No suffix or just R denotes +/-20% tolerance. Example: 1N3319RB is a REVERSED polarity,

20 volt unit having a +/-5% tolerance on Zener Voltage.

20 volt unit having a +/-5% tolerance on Zener Voltage.

2.

Zener Voltage (

2.

Zener Voltage (

3.

The Zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to

sharp knee on the breakdown curve and to eliminate unstable units. A curve showing the variation of zener impedance vs.

zener current for three representative types is shown in Figure 2. Also see Microsemi MicroNote 202.

3.

The Zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to

sharp knee on the breakdown curve and to eliminate unstable units. A curve showing the variation of zener impedance vs.

zener current for three representative types is shown in Figure 2. Also see Microsemi MicroNote 202.

OUTLINE AND CIRCUIT

Stud Temperature

FIGURE 1

Power Derating Curve

FIGURE 2

Typical Zener Impedance

vs. Zener Current

PACKAGE DIMENSIONS

All Dimensions in: INCH

mm