Fairchild 1N5221B - 1N5279B Zener Data Handbook
Summary
These Zener Diodes are essential semiconductor components designed for highly stable and reliable voltage regulation in electronic circuits. This technical manual provides comprehensive documentation, including detailed electrical characteristics, absolute maximum ratings, and performance curves for the entire 1N52xx series range. It is crucial reference material for electronics engineers and power design specialists who require precision power control and dependable circuit operation.
Page 1 Text Content
1N 5221B - 1N 5263B Zener D iodes
July 2011
1N5221B - 1N5263B Zener Diodes
Tolerance = 5%
DO-35 Glass case COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings* TA = 25°C unless otherwise noted Symbol Parameter Value Units PD Power Dissipation m W
Derate above 50°C 4.0 m W°C TSTG Storage Temperature Range -65 to +200 °C
TJ Operating Junction Temperature Range -65 to +200 °C
Lead Temperature (1/16” from case for 10 seconds) +230 °C
* These ratings are limiting values above which the serviceability of the diode may be impaired. ** Non-recurrent square wave PW = 8.3ms, TA = 50 degrees C.
Electrical Characteristics TA = 25°C unless otherwise noted
VZ (V) @ IZ (Note 1) TC
Device ZZ (Ω) @ IZ (m A) ZZK (Ω) @ IZK(m A) IR (μA) @ VR (V)
Typ. Max. (%/°C)Min.
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com 1N5221B - 1N5263B Rev. H3
Page Summary Contents For Fairchild 1N5221B - 1N5279B Zener Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 4 |
| File Size | 146.38 KB |
| Published | July 16, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the maximum power dissipation rating at 25°C?
The device has a Power Dissipation of 500 mW at 25°C.
How is the cathode marked on the diode package?
The COLOR BAND DENOTES CATHODE, and the DO-35 Glass case is used.
What are the operating temperature ranges for the Zener diodes?
Both Storage Temperature (STG) and Operating Junction Temperature (J) range from -65 to +200 °C.
How is derating needed if the temperature exceeds 50°C?
Above 50°C, the Power Dissipation must be de-rated at a rate of 4.0 mW/°C.