1N4148WSF
Document number: DS36010 Rev. 4 - 2 1 of 4
www.diodes.com September 2013
© Diodes Incorporated
1N4148WSF
NEW PRODUCT
SURFACE MOUNT FAST SWITCHING DIODE
Features
Fast Switching Speed
Low Forward Voltage: Maximum of 0.715V at 1mA
Fast Reverse Recovery: Maximum of 4ns
Low Capacitance: Maximum of 1.5pF
Low Leakage Current: Maximum of 500nA at 80V
Small Surface Mount Package
Thermally Efficient Copper Alloy leadframe for High Power
Dissipation
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Mechanical Data
Case: SOD323F
Case Material: Molded Plastic, “Green” Molding Compound. UL
Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Matte Tin Finish annealed over Copper Alloy leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
Weight: 0.003 grams (approximate)
Ordering Information (Note 4)
Product Compliance Marking Reel Size (inches) Tape Width (mm) Quantity per Reel
1N4148WSF-7 Standard JP 7 8 3,000/Tape & Reel
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as tho se which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
Date Code Key
Year 2013 2014 2015 2016 2017 2018 2019 2020
Code A B C D E F G H
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
Top View
SOD323F
JP = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: A = 2013)
M = Month (ex: 9 = September)
JP
YM
1N4148WSF
Document number: DS36010 Rev. 4 - 2 2 of 4
www.diodes.com September 2013
© Diodes Incorporated
1N4148WSF
NEW PRODUCT
Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage VRM 100 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 100 V
RMS Reverse Voltage VR(RMS) 71 V
Forward Continuous Current (Note 5) IFM 250 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0µs
@ t = 1.0ms
@ t = 1.0s IFSM 4.0
1.0
0.5 A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 5) PD 400 mW
Thermal Resistance Junction to Ambient Air (Note 5) RθJA 313 °C/W
Operating and Storage Temperature Range TJ, TSTG -55 to +150 °C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 6) V(BR)R 100 V IR = 100µA
Forward Voltage VF
0.715
0.855
1.0
1.25
V
IF = 1.0mA
IF = 10mA
IF = 50mA
IF = 150mA
Leakage Current (Note 6) IR
0.5
50
30
30
µA
µA
µA
nA
VR = 80V
VR = 80V, TJ = +150°C
VR = 25V, TJ = +150°C
VR = 25V
Total Capacitance CT 1.5 pF
VR = 0, f = 1.0MHz
Reverse Recovery Time trr 4.0 ns
IF = IR = 10mA,
Irr = 0.1 x IR, RL = 100
Notes: 5. Device mounted on FR-4 PCB, on minimum recommended, 2oz copper pad layout.
6. Short duration pulse test used to minimize self-heating effect.
1N4148WSF
Document number: DS36010 Rev. 4 - 2 3 of 4
www.diodes.com September 2013
© Diodes Incorporated
1N4148WSF
NEW PRODUCT
Package Outline Dimensions
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
P , POWER DISSIPATION (mW)
D
T , AMBIENT TEMPERA TURE ( C)
A
°
Figure 1 Power Derating Curve, Total Package
Note 5
R = 357°C/W
JA
V , IN STANTAN EO US FORW ARD VOLTAGE (m V)
Figure 2 Typical Forward Characteristics
F
I, I
N
S
T
A
N
T
A
N
E
O
U
S F
O
R
WA
R
D
C
U
R
R
E
N
T
(mA)
F
T = 150°C
A
T = 125°C
A
T = 5°C
A
5
T = 25°C
A
T = 5°C
A
-5
10000
0 200 400 600 800 1000 1200
1000
100
10
1
0.1
0.01
0.001
0.1
1
10
100
1,000
10,000
I, INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(nA)
R
100,000
V , INSTANTANEOUS REVERSE VOL TAGE (V)
Fi gure 3 Typi c al Re v er s e C haracter istics
R
0 102030405060708090100
V , DC REVERSE VOLTAGE (V)
Fi gur e 4 Tot al Ca pacitance vs. R ev er se Volt a ge
R
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (pF)
T
1.0
40020
0
0.2
0.4
0.6
0.8
SOD323F
Dim Min Max Typ
A 0.60 0.75
b 0.25 0.35
c 0.05 0.26
D 1.15 1.35 1.25
E 1.60 1.80 1.70
He 2.30 2.70 2.50
L1 0.30 0.50 0.40
L2 0.41 0.61 0.51
α1 7°
α2 3°
β1 7°
β2 3°
All Dimensions in mm
He E
D
b (2x)
c
L1
2
1
A
2
1b (2x)
L2 (2x)
1N4148WSF
Document number: DS36010 Rev. 4 - 2 4 of 4
www.diodes.com September 2013
© Diodes Incorporated
1N4148WSF
NEW PRODUCT
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated p roducts for any unintended or una uthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign p atents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Onl y the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and 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.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their pro ducts and an y
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2013, Diodes Incorporated
www.diodes.com
Dimensions Value (in mm)
G 1.280
X 0.710
X1 2.700
Y 0.403
YX
X1
G
