1N3643_1 Datasheet, PDF (1/3 Pages) Microsemi Corporation – VOIDLESS-HERMETICALLY-SEALED HIGH VOLTAGE RECTIFIERS

SCOTTSDALE DIVISION
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
VOIDLESS-HERMETICALLY-SEALED
HIGH VOLTAGE RECTIFIERS
DESCRIPTION
These “standard recovery” high voltage rectifier diode series are military qualified to
MIL-PRF-19500/279 for the 1N3644 thru 1N3647. Others such as the 1N5181 thru
1N5184 meet or exceed requirements of MIL-PRF-19500/389. They are ideal for
high-reliability where a failure cannot be tolerated for high voltage applications.
These 0.10 and 0.25 Amp rated rectifiers at 55ºC for working peak reverse voltages
from 1000 to 10,000 volts are hermetically sealed with voidless-glass construction
using an internal “Category I” metallurgical bond. Surface mount MELF package
configurations are also available by adding “SM” suffix. Microsemi also offers
numerous other rectifier products to meet higher and lower current ratings with
various recovery time speed requirements including fast and ultrafast device types
in both through-hole and surface mount packages.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
APPEARANCE
S Package
FEATURES
• JEDEC registered 1N3643 thru 1N3647, 1N4254
thru 1N4257, and 1N5181 thru 1N5187 series
• Voidless Hermetically Sealed Glass Package
• Triple Layer Passivation
• Internal “Category I” Metallurgical bonds
• Lowest Reverse Leakage Available
• Lowest Thermal Resistance Available
• Absolute High Voltage / High Temperature Stability
• 1N5181 thru 1N5184 meet or exceed requirements
of MIL-S-19500/389
• 1N3644 thru 1N3647 JAN, JANTX types available
per MIL-S19500/279
• Surface mount equivalents also available in a square
end-cap MELF configuration with “SM” suffix
MAXIMUM RATINGS
• Junction & Storage Temperature: -65^oC to +175^oC
• Thermal Resistance: 38^oC/W junction to lead at 3/8
inch (10 mm) lead length from body
• Average Rectified Forward Current (I_O):
1N3643 thru 1N3647: 0.250 Amps @ T_A = 55ºC
0.150 Amps @ T_A = 100ºC
1N4254 thru 1N4257: 0.250 Amps @ T_A = 55ºC
0.150 Amps @ T_A = 100ºC
1N5181 thru 1N5184: 0.100 Amps @ T_A = 55ºC
0.060 Amps @ T_A = 100ºC
• Forward Surge Current: See Electrical
Characteristics for surge at 8.3 ms half-sine wave
• Solder Temperatures: 260ºC for 10 s (maximum)
APPLICATIONS / BENEFITS
• High voltage standard recovery rectifiers 1000 to
10,000 V
• Military and other high-reliability applications
• Applications include bridges, half-bridges, catch
diodes, voltage multipliers, X-ray machines,
power supplies, transmitters, and radar
equipment
• High forward surge current capability
• Extremely robust construction
• Low thermal resistance
• Inherently radiation hard as described in Microsemi
MicroNote 050
MECHANICAL AND PACKAGING
• CASE: Hermetically sealed voidless hard glass
with Tungsten slugs
• TERMINATIONS: Axial leads are copper with
Tin/Lead (Sn/Pb) finish
• MARKING: Body paint and part number, etc.
• POLARITY: Cathode band
• TAPE & REEL option: Standard per EIA-296
• WEIGHT: 400 mg (approx)
• See package dimensions on last page
Copyright © 2005
5-13-2005 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]
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