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1N4448WS
SURFACE MOUNT FAST SWITCHING DIODE
Features
* * * * * * * Fast Switching Speed Small Surface Mount Package For General Purpose Switching Applications High Conductance Lead, Halogen and Antimony Free, RoHS Compliant (Note 3) "Green" Device (Note 4) Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
* * * * * * * * Case: SOD-323 Case Material: Molded Plastic, "Green" Molding Compound. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Leads: Matte Tin Finish annealed over Alloy 42 leadframe (Lead Free Plating). Solderable per MIL-STD-202, Method 208 Polarity: Cathode Band Marking Information: See Page 3 Ordering Information: See Page 3 Weight: 0.004 grams (approximate)
SOD-323
Top View
Maximum Ratings
@TA = 25C unless otherwise specified Symbol VRM VRRM VRWM VR VR(RMS) IFM IO @ t = 1.0s @ t = 1.0s IFSM Value 100 75 53 500 250 4 0.5 Unit V V V mA mA A
Characteristic Non-Repetitive Peak Reverse Voltage Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Forward Continuous Current Average Rectified Output Current Non-Repetitive Peak Forward Surge Current
Thermal Characteristics
Characteristic Power Dissipation (Note 2) Thermal Resistance Junction to Ambient Air (Note 2) Operating and Storage Temperature Range Symbol PD RJA TJ, TSTG Value 200 625 -65 to +150 Unit mW C/W C
Electrical Characteristics
Characteristic Reverse Breakdown Voltage (Note 1) Forward Voltage
@TA = 25C unless otherwise specified Symbol V(BR)R VFM Min 75 0.62 Max 0.72 0.855 1.0 1.25 2.5 50 30 25 4.0 4.0 Unit V V A A A nA pF ns Test Condition IR = 2.5A IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 75V VR = 75V, TJ = 150C VR = 25V, TJ = 150C VR = 20V VR = 0, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100
Peak Reverse Current (Note 1) Total Capacitance Reverse Recovery Time
Notes:
IRM CT trr
1. Short duration pulse test used to minimize self-heating. 2. Part mounted on FR-4 PC board with minimum recommended pad layouts, which can be found on our website at http://www/diodes.com/datasheets/ap02001.pdf. 3. No purposefully added lead. Halogen and Antimony Free. 4. Product manufactured with Data Code V9 (week 33, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date Code V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
1N4448WS
Document number: DS30096 Rev. 11 - 2
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February 2010
(c) Diodes Incorporated
1N4448WS
300
IF, INSTANTANEOUS FORWARD CURRENT (mA) 100
PD, POWER DISSIPATION (mW)
200
10
Note 2
100
1
0 0 50 25 75 100 125 TA, AMBIENT TEMPERATURE ( C) Fig. 1 Forward Current Derating Curve 150
0.1 0 1,000 400 600 800 200 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics
IR, INSTANTANEOUS REVERSE CURRENT(A)
10.0
4
1.0
CT, TOTAL CAPACITANCE (pF)
TA = 100 C
3
TA = 75 C
0.10
TA = 50 C TA = 25C T A = 0C TA = -30C
2
0.01
1
0.001 0
40 60 80 20 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
0 0 5 3 2 4 6 VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage 1
2.5 trr, REVERSE RECOVERY TIME (nS)
2.0
1.5
1.0
0.5
0 0 2 4 6 8 10 IF, FORWARD CURRENT (mA) Fig. 5 Reverse Recovery Time vs. Forward Current
1N4448WS
Document number: DS30096 Rev. 11 - 2
2 of 4 www.diodes.com
February 2010
(c) Diodes Incorporated
1N4448WS
Ordering Information
Part Number 1N4448WS-7-F
Notes:
(Note 5) Case SOD-323 Packaging 3000/Tape & Reel
5. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
T5
Cathode Band
T5 = Product Type Marking Code
Package Outline Dimensions
C H
B
A
M L
K
J
SOD-323 Dim Min Max A 0.25 0.35 B 1.20 1.40 C 2.30 2.70 H 1.60 1.80 J 0.00 0.10 K 1.0 1.1 L 0.20 0.40 M 0.10 0.15 0 8 All Dimensions in mm
Suggested Pad Layout
C
Dimensions Value (in mm) Z 3.75
G
1.05 0.65
1.35 2.40
X
X Y
C
Y G Z
1N4448WS
Document number: DS30096 Rev. 11 - 2
3 of 4 www.diodes.com
February 2010
(c) Diodes Incorporated
1N4448WS
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 products for any unintended or unauthorized 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 patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. 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 products and any 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 (c) 2010, Diodes Incorporated www.diodes.com
1N4448WS
Document number: DS30096 Rev. 11 - 2
4 of 4 www.diodes.com
February 2010
(c) Diodes Incorporated

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