DATA SHEET
SEMICONDUCTOR
1N5221B~1N5281B
500 mW DO-35 Hermetically
Sealed Glass Zener Voltage
Regulators
Maximum Ratings
(Note 1)
Rating
Maximum Steady State Power Dissipation
@ T
L
≤75°C,
Lead Length = 3/8”
Derate Above 75°C
Operating and Storage
Temperature Range
Symbol
P
D
Value
500
Unit
mW
AXIAL LEAD
DO35
4.0
T
J
, T
stg
-65 to +200
mW/°C
°C
1. Some part number series have lower JEDEC registered ratings.
Specification Features
•
•
•
•
•
Zener Voltage Range = 2.4 V to 200 V
ESD Rating of Class 3 (>16 KV) per Human Body Model
DO-35 Package (DO-204AH)
Double Slug Type Construction
Metallurgical Bonding
Cathode
Anode
Mechanical Characteristics
Case
:
Double slug type, hermetically sealed glass
Finish
:
All external surfaces are corrosion resistant and leads are readily solderable.
Polarity :
Cathode indicated by polarity band
Mounting:
Any
Maximum Lead Temperature for Soldering Purposes
230°C, 1/16” from the case for 10 seconds
MARKING DIAGRAM
1N
52
xxB
1N52xxB
= Device Code
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1
REV.03 20121003