Y-SEALED VOIDLESS-HERMETICALL
HIGH VOLTAGE RECTIFIERS
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright 2004
12-29-2004 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
DESCRIPTION APPEARANCE
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.
S Package
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
• 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
• 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
MAXIMUM RATINGS MECHANICAL AND PACKAGING
• Junction & Storage Temperature: -65oC to +175oC
• Thermal Resistance: 38oC/W junction to lead at 3/8
inch (10 mm) lead length from body
• Average Rectified Forward Current (IO):
1N3643 thru 1N3647: 0.250 Amps @ TA = 55ºC
0.150 Amps @ TA = 100ºC
1N4254 thru 1N4257: 0.250 Amps @ TA = 55ºC
0.150 Amps @ TA = 100ºC
1N5181 thru 1N5184: 0.100 Amps @ TA = 55ºC
0.060 Amps @ TA = 100ºC
• Forward Surge Current: See Electrical
Characteristics for surge at 8.3 ms half-sine wave
• Solder Temperatures: 260ºC for 10 s (maximum)
• 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
VOIDLESS-HERMETICALLY-SEALED
HIGH VOLTAGE RECTIFIERS
SCOTTSDALE DIVISION
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
WWW.Microsemi .COM 1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
ELECTRICAL CHARACTERISTICS
TYPE
WORKING
PEAK
REVERSE
VOLTAGE
VRWM
AVERAGE
RECTIFIED
CURRENT
IO
MAXIMUM
FORWARD
VOLTAGE
VF
(See Notes
1 & 2)
REVERSE
CURRENT
(MAX.)
IR @ VRWM
MAXIMUM
SURGE
CURRENT
@ 8.3 ms
VOLTS mA VOLTS µA AMPS
55oC 100oC 25oC 55oC 125oC 175oC
1N3643
JAN1N3644
JAN1N3645
JAN1N3646
JAN1N3647
1000
1500
2000
2500
3000
250
250
250
250
250
150
150
150
150
150
5.0 (1)
5.0 (1)
5.0 (1)
5.0 (1)
5.0 (1)
5
5
5
5
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
14
14
14
14
14
1N4254
1N4255
1N4256
1N4257
1500
2000
2500
3000
250
250
250
250
150
150
150
150
3.5 (2)
3.5 (2)
3.5 (2)
3.5 (2)
1
1
1
1
-
-
-
-
20
20
20
20
-
-
-
-
10
10
10
10
1N5181
1N5182
1N5183
1N5184
4000
5000
7500
10,000
100
100
100
100
60
60
60
60
10 (2)
10 (2)
10 (2)
10 (2)
-
-
-
-
5
5
5
5
-
-
-
-
1000
1000
1000
1000
4
4
4
4
NOTE 1: VF @ 250mA
NOTE 2: VF @ 100mA
SYMBOLS & DEFINITIONS
Symbol Definition
VBR Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current.
VRWM Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating
temperature range.
VF Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
IR Maximum Leakage Current: The maximum leakage current that will flow at the specified voltage and
temperature.
GRAPHS
FIGURE 1 FIGURE 2
1N3643-47 and 1N4254-57 1N5181-84
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Copyright 2004
12-29-2004 REV A
VOIDLESS-HERMETICALLY-SEALED
HIGH VOLTAGE RECTIFIERS
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright 2004
12-29-2004 REV A
WWW.Microsemi .COM
SCOTTSDALE DIVISION
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
1N3643 thru 1N3647
1N4254 thru 1n4257
1N5181 thru 1N5184
PACKAGE DIMENSIONS
NOTE: Lead tolerance is +0.003/-0.004 inches
