MICROSEMI LL4938

1N4938, 1N4938-1, LL4938
Silicon Switching Diode
WATERTOWN DIVISION
P RODUCT P REVIEW
KEY FEATURES
DESCRIPTION
When ordering Mil-PRF-19500/169
parts, use the number with the
appropriate 1N4938-1 JAN, JTX or
JTXV prefix.
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These silicon switching diodes are
available in DO-35 glass packages and
LL4938 Mini-Melf (DO-213AA).
metallurgical bonded.
available up to JANTXV for
1N4938-1 axial devices &
1N4938UR-1 MINI-MELF.
These devices are used in generalpurpose applications where high voltage
and switching speed are important.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Symbol
Value
Unit
Peak Inverse [email protected] 100µA
PIV
200(Min.)
Volts
Average Rectified Current
IA vg
100
mAmps
Continuous Forward Current
Peak Surge Current
(t peak = 1 µsec.)
Power Dissipation T L =50°C,
L = 3/8” from body
Storage Temperature Range
IF dc
100
mAmps
I peak
1.0
Amp
P tot
500
mWatts
TS t
-65 to +200
ºC
TOp
-65 to +175
ºC
Operating Temperature
1N4938
APPLICATIONS/BENEFITS
APPLICATIONS/BENEFITS
High Voltage and Switching
Speed.
LL4938
1N4938, 1N4938-1, LL4938
Copyright  2001
Rev. 0.02, 2001-05-15
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 1
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
WATERTOWN DIVISION
P RODUCT P REVIEW
Parameter
Symbol
Forward Voltage Drop
Reverse Leakage Current
@150°C
Reverse Leakage Current
Capacitance
Reverse Recovery Time
Conditions
Min
Max
Units
VF
1F =100mA
1.0
V
IR
VR = 175 V
100
µA
IR
CT
Tr r
VR = 175 V
VR = 0 V, F = 1 MHZ
(See note 1)
100
5.0
50
nA
PF
ns
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ELECTRICAL PARAMETERS @ 25°C (unless otherwise specified)
Note 1: Per Method 4031-B with IF = IR = 30 ma, RL = 100 Ohms, C = 3 Pf
ELECTRICAL
PRODUCT PRELIMINARY DATA – Information contained in this document is pre-production
data, and is proprietary to Microsemi Corp. It may not be modified in any way without the express
written consent of Microsemi Corp. Product referred to herein is not guaranteed to achieve
preliminary or production status and product specifications, configurations, and availability may
change at any time.
Copyright  2001
Rev. 0.02, 2001-05-15
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 2
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
WATERTOWN DIVISION
P RODUCT P REVIEW
W W W. Microsemi .COM
1N4938 DO-35 Glass Package
(nominal dimensions)
DATA PACKAGE
LL4938 LL-34/35 MINI-MELF
SMD Package (DO-213AA)
(nominal dimensions)
Copyright  2001
Rev. 0.02, 2001-05-15
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 3
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
WATERTOWN DIVISION
P RODUCT P REVIEW
W W W. Microsemi .COM
NOTES:
NOTES
Copyright  2001
Rev. 0.02, 2001-05-15
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 4