1N746A-1 – 1N759A-1,
1N4370A-1 – 1N4372A-1
Available on
commercial
versions
Qualified Levels:
JAN, JANTX, and
JANTXV
Silicon 500 mW Zener Diodes
Qualified per MIL-PRF-19500/127
DESCRIPTION
This popular series of 500 mW Zener voltage regulators provides a selection from 2.4 to 12
volts in a standard 5% tolerance as well as available tighter 2% and 1% tolerances. These
axial-leaded, glass DO-35 Zeners feature an internal metallurgical bond and are military
qualified to the JAN, JANTX, and JANTXV level. A RoHS compliant commercial grade only
version is also available.
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
•
•
•
•
JEDEC registered 1N746 through 1N759A and 1N4370 through 1N4372A series.
Standard voltage tolerance is ± 5% with optional tighter tolerances of ± 2% or 1%.
Internal metallurgical bond.
JAN, JANTX, and JANTXV qualifications are available per MIL-PRF-19500/127.
DO-35 (DO-204AH)
Package
(See part nomenclature for all available options.)
•
Also available in:
RoHS compliant versions available (commercial grade only).
DO-213AA package
(MELF surface mount)
1N746AUR-1 –
1N759AUR-1 and
1N4370AUR-1 –
1N4372AUR-1
APPLICATIONS / BENEFITS
•
•
•
•
•
•
Regulates voltage over a broad range of temperature and current.
Regulated voltage range from 2.4 to 12 V.
Flexible axial-lead mounting terminals.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Minimal capacitance.
Inherently radiation hard as described in Microsemi MicroNote 050.
MAXIMUM RATINGS
Parameters/Test Conditions
Operating and Storage Temperature
Thermal Resistance Junction-to-Lead
@ .375 inch (9.53 mm) lead length from body
Thermal Resistance Junction-to-Ambient when
(1)
mounted on PCB
Average Rated Power Dissipation
(2)
@ T L = +50°C .375 inch (9.53 mm) from body
@ T A = 55°C mounted on PCB
Forward Voltage @ I F = 200 mA
Solder Temperature @ 10 s
NOTES:
Symbol
T J and T STG
R ӨJL
Value
-65 to +175
250
Unit
ºC
ºC/W
R ӨJA
300
ºC/W
P M(AV)
0.5
0.4
1.1
260
W
VF
T SP
V
C
o
1. See Figures 1 and 2 for derating curves. T A = +75 °C on an FR4 PC board with 1 oz copper
metalization.
2. The 0.5 W linearly derates starting at T L = 50 °C and goes to zero at 175 °C. For ambient T A
condition on a typical PC board, it linearly derates from 400 mW starting at 55 °C and goes to zero at
175 °C (see Figure 2).
T4-LDS-0288, Rev. 1 (5/23/13)
©2013 Microsemi Corporation
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
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