LL4938 Datasheet PDF - Microsemi Corporation


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LL4938
Microsemi Corporation

Part Number LL4938
Description Silicon Switching Diode
Page 4 Pages

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WATERTOWN DIVISION
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
PRODUCT PREVIEW
DESCRIPTION
These silicon switching diodes are
available in DO-35 glass packages and
LL4938 Mini-Melf (DO-213AA).
These devices are used in general-
purpose applications where high voltage
and switching speed are important.
When ordering Mil-PRF-19500/169
parts, use the number with the
appropriate 1N4938-1 JAN, JTX or
JTXV prefix.
IMPORTANT:Forthemostcurrentdata,consultMICROSEMI’s website: http://www.microsemi.com
ABSOLUTE MAXIMUM RATINGS AT 25º C
(UNLESS OTHERWISE SPECIFIED)
Rating
Symbol
Value
Peak Inverse Voltage@ 100µA
Average Rectified Current
Continuous Forward Current
Peak Surge Current
(t peak = 1 µsec.)
Power Dissipation T L =50°C,
L = 3/8” from body
Storage Temperature Range
Operating Temperature
PIV
IA vg
IF dc
I peak
P tot
TS t
TOp
200(Min.)
100
100
1.0
500
-65 to +200
-65 to +175
Unit
Volts
mAmps
mAmps
Amp
mWatts
ºC
ºC
KEY FEATURES
metallurgical bonded.
available up to JANTXV for
1N4938-1 axial devices &
1N4938UR-1 MINI-MELF.
APPLICATIONS/BENEFITS
High Voltage and Switching
Speed.
1N4938
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



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WATERTOWN DIVISION
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
PRODUCT PREVIEW
Parameter
ELECTRICAL PARAMETERS @ 25°C (unless otherwise specified)
Symbol Conditions
Min
Forward Voltage Drop
Reverse Leakage Current
@150°C
Reverse Leakage Current
Capacitance
Reverse Recovery Time
VF 1F =100mA
IR VR = 175 V
IR VR = 175 V
CT VR = 0 V, F = 1 MHZ
Tr r (See note 1)
Max
1.0
100
100
5.0
50
Note 1: Per Method 4031-B with IF = IR = 30 ma, RL = 100 Ohms, C = 3 Pf
Units
V
µA
nA
PF
ns
Copyright 2001
Rev. 0.02, 2001-05-15
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.
Microsemi
580 Pleasant Street, Watertown, MA. 02472-2408, 617-926-0404, Fax: 617-924-1235
Page 2



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WATERTOWN DIVISION
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
PRODUCT PREVIEW
1N4938 DO-35 Glass Package
(nominal dimensions)
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



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WATERTOWN DIVISION
1N4938, 1N4938-1, LL4938
Silicon Switching Diode
PRODUCT PREVIEW
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




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