1N5221 THRU 1N5270
Silicon Planar Power Zener Diodes
Standard Zener voltage tolerance is ±5%
with a "B" su x. Other tolerances are
available upon request.
These diodes are also available in Mini-MELF case with
the type designation ZMM5225… ZMM5267, SOT-23
case with the type designation MMBZ5265…MMBZ5267
and SOD-23 case with the types designation MMSZ5225…
Case: DO-35 Glass Case
Weight: approx. 0.13g
Dimensions are in inches and (millimeters)
max. .079 (2.0)
max. .020 (0.52)
Ratings at 25°C ambient temperature unless otherwise specified.
Zener Current (see Table “Characteristics”)
Power Dissipation at Tamb = 75°C
Maximum Junction Temperature
Storage Temperature Range
– 65 to +175
Junction to Ambient Air
at IF = 200 mA
Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature.
– 1.1 Volts