1N4942 thru 1N4948
VOIDLESS-HERMETICALLY SEALED
FAST RECOVERY GLASS RECTIFIERS
SCOTTSDALE DIVISION
DESCRIPTION
This “fast recovery” rectifier diode series is military qualified to MIL-PRF-19500/359
and is ideal for high-reliability applications where a failure cannot be tolerated.
These industry-recognized 1.0 Amp rated rectifiers for working peak reverse
voltages from 200 to 1000 volts are hermetically sealed with voidless-glass
construction using an internal “Category I” metallurgical bond. These devices are
similar in ratings to the 1N5615 thru 1N5623 series where surface mount MELF
package configurations are also available by adding a “US” suffix (see separate
data sheet for 1N5615US thru 1N5623US). 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
WWW .
Microsemi
.C
OM
“A” Package
FEATURES
•
•
•
•
•
•
Popular JEDEC registered 1N4942 to 1N4948 series
Voidless hermetically sealed glass package
Triple-Layer Passivation
Internal “Category
I”
Metallurgical bonds
Working Peak Reverse Voltage 200 to 1000 Volts.
JAN, JANTX, and JANTXV available per MIL-PRF-
19500/359 (for JANS, see 1N5615 thru 1N5623)
•
Surface mount equivalents also available in a square
end-cap MELF configuration with “US” suffix (see
separate data sheet for 1N5615US thru 1N5623US)
•
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Fast recovery 1 Amp rectifiers 200 to 1000 V
Military and other high-reliability applications
General rectifier applications including bridges, half-
bridges, catch diodes, etc.
High forward surge current capability
Extremely robust construction
Low thermal resistance
Controlled avalanche with peak reverse power
capability
Inherently radiation hard
as described in Microsemi
MicroNote 050
MAXIMUM RATINGS
•
Junction & Storage Temperature: -65
o
C to +175
o
C
•
Thermal Resistance: 38
o
C/W junction to lead at 3/8
inch (10 mm) lead length from body
•
Thermal Impedance: 4.5
o
C/W @ 10 ms heating time
•
Average Rectified Forward Current (I
O
): 1.0 Amps @
T
A
= 55ºC and 0.750 Amps at T
A
= 100ºC
•
Forward Surge Current: 15 Amps @ 8.3 ms half-sine
•
Solder Temperatures: 260ºC for 10 s (maximum)
•
•
•
•
•
•
•
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: 340 mg
See package dimensions on last page
ELECTRICAL CHARACTERISTICS
TYPE
WORKING
MINIMUM
PEAK
BREAKDOWN
REVERSE
VOLTAGE
VOLTAGE
B
V
@ 50µA
V
RWM
VOLTS
VOLTS
200
400
600
800
1000
220
440
660
880
1100
AVERAGE
RECTIFIED
CURRENT
I
O
AMPS
o
o
55 C
100 C
1.00
.750
1.00
.750
1.00
.750
1.00
.750
1.00
.750
MAXIMUM
FORWARD
VOLTAGE
V
F
@ 1 A
VOLTS
1.3
1.3
1.3
1.3
1.3
MAXIMUM
REVERSE
CURRENT
I
R
@ V
RWM
µA
o
o
25 C
150 C
1.0
200
1.0
200
1.0
200
1.0
200
1.0
200
Maximum
CAPACITANCE
C @ -12V
pF
45
35
25
20
15
MAXIMUM
SURGE
CURRENT
(NOTE 1)
I
FSM
AMPS
15
15
15
15
15
MAXIMUM
REVERSE
RECOVERY
(NOTE 2)
t
rr
ns
150
150
250
250
500
1N4942 thru 1N4948
NOTE 1:
T
A
= 100
o
C, 8.3 ms surges
JAN1N4942
JAN1N4944
JAN1N4946
JAN1N4947
JAN1N4948
NOTE 2:
I
F
= 0.5A, I
RM
= 1A, I
R(REC)
= .250A
Copyright
2004
12-08-2004 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N4942 thru 1N4948
VOIDLESS-HERMETICALLY SEALED
FAST RECOVERY GLASS RECTIFIERS
SCOTTSDALE DIVISION
Symbol
V
BR
V
RWM
V
F
I
R
C
t
rr
SYMBOLS & DEFINITIONS
Definition
Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current.
Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating
temperature range.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
Maximum Leakage Current: The maximum leakage current that will flow at the specified voltage and
temperature.
Capacitance: The capacitance of the TVS as defined @ 12 volts at a frequency of 1 MHz and stated in
picofarads.
Reverse Recovery Time: The time interval between the instant the current passes through zero when
changing from the forward direction to the reverse direction and a specified recovery decay point after a peak
reverse current is reached.
WWW .
Microsemi
.C
OM
PACKAGE DIMENSIONS
NOTE: Lead diameter tolerance = +0.003/-0.004 inches
1N4942 thru 1N4948
Copyright
2004
12-08-2004 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
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