Silicon Switching Diode Series
1N4148UB
Features
•
JAN, JANTX, and JANTXV qualification is available
per MIL-PRF-19500/116. (See part nomenclature
for all available options.)
Surface mount equivalent of popular JEDEC registered
1N4148 number.
Very low capacitance.
Very fast switching speeds with minimal reverse recovery times.
Unidirectional as well as doubler, common anode and common
cathode polarities are available.
RoHS compliant by design.
•
•
•
•
•
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.
Applications
•
•
•
•
High frequency data lines.
Low-profile ceramic surface mount package (see package illustration).
RS-232 & RS-422 interface networks.
Ethernet 10 Base T, LAN & computers.
Maximum Ratings @ 25 °C
Parameters/Test Conditions
Junction and Storage Temperature
Thermal Resistance Junction-to-Ambient (1)
Thermal Resistance Junction-to-Solder Pad (1)
Maximum Breakdown Voltage
Working Peak Reverse Voltage
Average Rectified Current @ TA = 75 °C (2)
Non-Repetitive Sinusoidal Surge Current (tp = 8.3 ms)
NOTES:
1. See Figure 2 for thermal impedance curves.
2. See Figure 1 for derating.
Symbol
TJ & TSTG
R
θJA
R
θJSP
V(BR)
VRWM
IO
IFSM
Value
-65 to +200
325
120
100
75
200
2
Unit
°C
°C/W
°C/W
V
V
mA
A (pk)
Revision Date: 3/17/2014
1
1N4148UB
Graphs
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
Forward
Voltage
VF1 @
Forward
Voltage
VF2 @
Reverse
Recovery
Time
tfr
(Note 1)
ns
5
Reverse
Recovery
Time
Vfr
(Note 2)
ns
20
Reverse
Reverse
Reverse
Reverse
Current
Current
Capacitance Capacitance
Current
Current
IR3 @ 20 V IR4 @ 75 V
(Note 3)
(Note 4)
IR1 @ 20 V IR2 @ 75 V
TA = 150 °C TA = 150 °C
nA
25
μA
0.5
μA
35
μA
75
pF
4.0
pF
2.8
IF = 10 mA IF = 100 mA
V
0.8
V
1.2
Note 1:
Note 2:
2
IF = IR = 10 mA, RL = 100 ohms +5 %.
IF = 50 mA.
Note 3: VR = 0 V, f = 1 MHz, VSIG = 50 mV (pk to pk).
Note 4: VR = 1.5 V, f = 1 MHz, VSIG = 50 mV (pk to pk).
TEL: 603-641-SEMI (7364) • metelics-sales@aeroflex.com • www.aeroflex.com/metelics
Revision Date: 3/17/2014
1N4148UB
Outline Drawing
UB
NOTES:
1.
2.
3.
4.
5.
Dimensions are in inches. Millimeters are given for general information only.
Ceramic package only.
Hatched areas on package denote metallized areas.
Pad 1 = Base, Pad 2 = Emitter, Pad 3 = Collector, Pad 4 = Shielding connected to the lid.
In accordance with ASME Y14.5M, diameters are equivalent to
ɸx
symbology.
Mechanical & Packaging
CASE: Ceramic
THERMALS: Gold plating over nickel under plate.
TAPE & REEL option: Standard per EIA-4180. Consult factory for quantities.
WEIGHT: < 0.04 Grams.
Symbols & Definitions
Symbol
IR
IO
trr
VF
VR
VRWM
Definitions
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Average Rectified Forward Current: The output current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave
input and a 180 degree conduction angle.
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 decay point after a peak reverse current occurs.
Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum
value).
Reverse Voltage: The reverse voltage de value, no alternating component.
Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature
range excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV.
TEL: 603-641-SEMI (7364) • metelics-sales@aeroflex.com • www.aeroflex.com/metelics
Revision Date: 3/17/2014
3
1N4148UB
Parts Nomenclature
JAN 1N4148
Reliability Level
JAN = JAN level
JANTX = JANTX level
JANTXV = JANTXV level
Blank = Commercial grade
JEDEC type number
(see Electrical Characteristics table)
UB
CA
Polarity
CA = Common Anode
CC = Common Cathode
D = Doubler
Blank = Unidirectional
Surface Mount package
1
1N4148UBCA
2
Unidirectional
Common Anode
1
1N4148UBD
2
Doubler
3
2
Common Cathode
1
1N4148UBCC
3
1
2
1N4148UB
3
3
Aeroflex / Metelics, Inc.
975 Stewart Drive,
Sunnyvale, CA 94085
Tel: (408) 737-8181
Fax: (408) 733-7645
Sales: 888-641-SEMI (7364)
Hi-Rel Components
9 Hampshire Street,
Lawrence, MA 01840
Tel: (603) 641-3800
Fax: (978) 683-3264
www.aeroflex.com/metelics-HRC
54 Grenier Field Road,
Londonderry, NH 03053
Tel: (603) 641-3800
Fax: (603)-641-3500
ISO 9001: 2008 certified companies
www.aeroflex.com/metelics
metelics-sales@aeroflex.com
Aeroflex / Metelics, Inc. reserves the right to make changes to any products and services
herein at any time without notice. Consult Aeroflex or an authorized sales representative to
verify that the information in this data sheet is current before using this product. Aeroflex
does not assume any responsibility or liability arising out of the application or use of any
product or service described herein, except as expressly agreed to in writing by Aeroflex;
nor does the purchase, lease, or use of a product or service from Aeroflex convey a license
under any patent rights, copyrights, trademark rights, or any other of the intellectual rights
of Aeroflex or of third parties.
Copyright 2013 Aeroflex / Metelics. All rights reserved.
Revision Date: 3/17/2014
Our passion for performance is defined by three
attributes represented by these three icons:
solution-minded, performance-driven and customer-focused.
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
