1N4148UB
Qualified Levels:
JAN, JANTX, and
Switching Diode
Compliant
JANTXV
Qualified per MIL-PRF-19500/116
DESCRIPTION
This 1N4148UB switching/signal diode features ceramic bodied construction for military grade
products per MIL-PRF-19500/116. This small low capacitance diode, with very fast switching
speeds, is featured in a surface mount UB package with various polarities available.
Microsemi also offers a variety of other switching/signal diodes.
Important: For the latest information, visit our website 1N4148UB
MECHANICAL and PACKAGING
CASE: Ceramic.
TERMINALS: Gold plating over nickel under plate.
MARKING: Part number, date code, manufacturers ID.
TAPE & REEL option: Standard per EIA-418D. Consult factory for quantities.
WEIGHT: < 0.04 Grams.
See Package Dimensions on last page.
PART NOMENCLATURE
JAN 1N4148 UB CA
Reliability Level Polarity
JAN = JAN level CA = Common Anode
JANTX = JANTX level CC = Common Cathode
JANTXV = JANTXV level D = Doubler
Blank = Commercial grade Blank = Unidirectional
JEDEC type number Surface Mount package
(see Electrical Characteristics
table)
Common Anode Unidirectional
Doubler Common Cathode
SYMBOLS & DEFINITIONS
Symbol Definition
I Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
R
Average Rectified Forward Current: The output current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave
I
O
input and a 180 degree conduction angle.
t Reverse Recovery Time: The time interval between the instant the current passes through zero when changing from
rr
the forward direction to the reverse direction and a specified decay point after a peak reverse current occurs.
V Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum
F
value).
V Reverse Voltage: The reverse voltage dc value, no alternating component.
R
Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature range
V
RWM
excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV.
T4-LDS-0281-2, Rev. 1 (121568) 2012 Microsemi Corporation Page 2 of 5