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1N4691-1 Datasheet PDF

1N4691-1
Microsemi

Part Number 1N4691-1
Description 500 mW AXIAL-LEADED ZENER DIODES
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1N4678-1 thru 1N4717-1
Available on
commercial
versions
500 mW AXIAL-LEADED ZENER DIODES
DESCRIPTION
The 1N4678-1 thru 1N4717-1 series of 0.5 watt Zener voltage regulators provides a selection
from 1.8 to 43 volts in standard 5% tolerances as well as tighter tolerances. These axial-
leaded glass DO-35 Zeners are available with an internal metallurgical bond similar to military
requirements for similar Zeners. Microsemi also offers numerous other Zener products to
meet higher and lower power applications.
Screening in
reference to
MIL-PRF-19500
available
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
JEDEC registered 1N4678 thru 1N4717 series.
Internal metallurgical bond.
Tighter voltage tolerances of 2% and 1% are available.
Up-screening available in reference to MIL-PRF-19500.
(See part nomenclature for all available options).
RoHS compliant devices available (commercial grade only).
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current and temperature range.
Guaranteed maximum voltage regulation 10 μA to 100 μA.
Voltage selection from 1.8 to 43 V.
Flexible axial-lead mounting terminals.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Minimal capacitance (see Figure 3).
Inherently radiation hard as described in Microsemi’s “MicroNote 050”.
DO-35 (DO-204AH)
Package
Also available in:
DO-213AA
(surface mount)
1N4678UR-1 – 1N4717UR-1
MAXIMUM RATINGS
Parameters/Test Conditions
Junction and Storage Temperature
Thermal Resistance Junction-to-Lead (1)
Thermal Resistance Junction-to-Ambient (2)
Steady-State Power Dissipation (3)
Forward Voltage @ 200 mA
Solder Temperature @ 10 s
Symbol
TJ and TSTG
R ӨJL
R ӨJA
PD
VF
TSP
Value
-65 to +175
250
310
0.5
1.1
260
Unit
oC
oC/W
oC/W
W
V
oC
Notes:
1. At 3/8 (10 mm) lead length from body.
2. When mounted on FR4 PC board (1 oz Cu) with 4 mm2 copper pads and track width 1 mm, length 25 mm.
3. At T L < 50 oC 3/8 inch (10 mm) from body or 0.48 W at T A < 25 ºC when mounted on FR4 PC board as
described for thermal resistance (see Figure 2 for derating).
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
T4-LDS-0240, Rev. 1 (112022)
©2011 Microsemi Corporation
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