1. Product profile
1.1 General description
Low voltage regulator diodes in hermetically sealed small SOD66 (DO-41) glass
packages.
The series consists of 22 types with nominal working voltages from 3.3 to 24 V.
1.2 Features
1.3 Applications
n Low voltage stabilizers
1.4 Quick reference data
2. Pinning information
[1] The marking band indicates the cathode.
1N4728A to 1N4749A
Voltage regulator diodes
Rev. 02 — 30 October 2009 Product data sheet
n Total power dissipation:
max. ≤ 1000 mW
n Tolerance series: ±5%
n Working voltage range:
nom. 3.3 V to 24 V
n Small hermetically sealed glass
package
Table 1. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
V
F
forward voltage I
F
= 200 mA - - 1.2 V
P
tot
total power dissipation - - 1000 mW
Table 2. Pinning
Pin Description Simplified outline Graphic symbol
1 cathode
[1]
2 anode
ak
006aaa152
2
1
1N4728A_SER © Nexperia B.V. 2009. All rights reserved.
Product data sheet Rev. 02 — 30 October 2009 2 of 10
Nexperia
1N4728A to 1N4749A
Voltage regulator diodes
3. Ordering information
[1] The series consists of 22 types with nominal working voltages from 3.3 V to 24 V.
4. Marking
5. Limiting values
Table 3. Ordering information
Type number Package
Name Description Version
1N4728A to
1N4749A
[1]
- hermetically sealed glass package; axial leaded;
2 leads
SOD66
Table 4. Marking codes
Type number Marking code
1N4728A to 1N4749A The diodes are type branded.
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
I
F
forward current - 500 mA
I
Z
working current - see
Table 8
I
ZSM
non-repetitive peak reverse
current
- see
Table 8
P
tot
total power dissipation T
amb
=50°C - 1000 mW
T
j
junction temperature −65 +200 °C
T
stg
storage temperature −65 +200 °C