1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes
March 2008
1N4148WS / 1N4448WS / 1N914BWS
Small Signal Diodes
• • • • • • • General Purpose Diodes Fast switching Device( TRR < 4.0 ns ) Very Small and Thin SMD package Moisture Level Sensitivity 1 Pb-free Version and RoHS Compliant Matte Tin (Sn) Lead Finish Green Mold Compound
Device Marking Code Device Type Device Marking 1N4148WS S1 1N4448WS S2 1N914BWS S3
*Band Denotes Cathode
SOD-323F
Absolute Maximum Ratings* Ta=25°C unless otherwise noted
Symbol
VRSM VRRM I FRM IO TJ TSTG
Parameter
Non-Repetitive Peak Reverse Voltage Repetitive Peak Reverse Voltage Repetitive Peak Forward Current Continuous Forward Current Operating Junction Temperature Range Storage Temperature Range
Value
100 75 300 150 +150 -55 to +150
Units
V V mA mA °C °C
* These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Thermal Characteristics
Symbol
RθJA PD Power Dissipation(TC=25°C)
Parameter
Thermal Resistance, Junction to Ambient
Value
500 200
Unit
°C/W mW
* Device mounted on FR-4 PCB minimum land pad.
Electrical Characteristics Ta=25°C unless otherwise noted
Symbol
BVR IR VF CO TRR
Parameter
Breakdown Voltage Reverse Current 1N4448WS/ 914BWS 1N4148WS 1N4448WS/ 914BWS
Test Conditions
IR = 100 μA IR = 5 μ A V R = 20 V V R = 75 V IF = 5 m A IF = 10 mA IF = 100 mA VR = 0, f = 1 MHz I F = 10 mA, IR = 60mA I RR = 1 mA, RL = 100 Ω
Min
100 75
Typ
Max
Units
V
25 5 0.62 0.72 1 1 4 4
nA μA V pF nS
Forward Voltage Diode Capacitance Reverse Recovery Time
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 1
www.fairchildsemi.com
1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes
Typical Performance Characteristics
Total Capacitance
0.58 TA=25°C 0.56
0.54
Capacitance [pF]
0.52
0.50
0.48
0.46
0.44 0 2 4 6 8 10 12 14
Reverse Voltage (V)
Forward Voltage vs Ambient Temperature Typical
1.2
1.0
VF- Forward Voltage [V]
Ta=-40°C Ta=25°C
0.8
0.6 Ta=150°C 0.4
0.2
0.0 0.01
0.1
1 F
10
100
Forward Current, I [mA]
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 2
www.fairchildsemi.com
1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes
Typical Performance Characteristics
Power Derating Curve
250
PD - Power Dissipation [mW]
200
150
100
50
0 0 25 50 75 100 125 150 175
Temperature [°C]
Reverse Current vs Reverse Voltage
105
104 Ta=150°C
Reverse Current [nA]
103
102 Ta=25°C 101
100 Ta=-40°C 10-1 10
20
30
40
50
60
70
80
90
100
Reverse Voltage, VR[V]
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 3
www.fairchildsemi.com
1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes
Typical Performance Characteristics
Reverse Voltage vs Reverse Current
170 Ta=25°C
VR - Reverse Voltage
160
150
140 1 10 100
Reverse Current, IR[µA]
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 4
www.fairchildsemi.com
1N4148WS / 1N4448WS / 1N914BWS — Small Signal Diodes
Package Dimensions SOD-323F
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 5
www.fairchildsemi.com
1N4148WS 1N4148WS / 1N4448WS / 1N914BWS Small Signal Diodes
TRADEMARKS
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®
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SuperSOT™-8 SyncFET™ The Power Franchise®
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DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
2.
A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition
Advance Information
Formative or In Design
This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I31
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
© 2007 Fairchild Semiconductor Corporation 1N4148WS / 1N4448WS / 1N914BWS Rev. 1.0 6
www.fairchildsemi.com
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