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1N4448HWT
SURFACE MOUNT FAST SWITCHING DIODE
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Features
* * * * * * Fast Switching Speed Ultra-Small Surface Mount Package For General Purpose Switching Applications High Conductance Lead Free by Design/RoHS Compliant (Note 1) "Green" Device (Notes 3 and 4)
Mechanical Data
* * * * * * * * *
SOD-523
Case: SOD-523 Case Material: Molded Plastic, "Green" Molding Compound, Note 4. UL Flammability Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020D Terminal Connections: Cathode Band Terminals: Solderable per MIL-STD-202, Method 208 Lead Free Plating (Matte Tin Finish) annealed over Alloy 42 leadframe. Marking Information: See Page 2 Ordering Information: See Page 2 Weight: 0.002 grams (approximate)
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 80 57 250 125 2.0 1.0 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 (Note 2) Operating and Storage Temperature Range Symbol PD RJA TJ, TSTG Value 150 833 -65 to +150 Unit mW C/W C
Electrical Characteristics
Characteristic Reverse Breakdown Voltage (Note 5) Forward Voltage
@TA = 25C unless otherwise specified Symbol V(BR)R VF Min 80 0.62 Max 0.72 0.855 1.0 1.25 100 50 30 25 3.0 4.0 Unit V V Test Conditions IR = 100A IF = 5.0mA IF = 10mA IF = 100mA IF = 150mA VR = 80V VR = 75V, TJ = 150C VR = 25V, TJ = 150C VR = 20V VR = 0.5V, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100
Peak Reverse Current (Note 5) Total Capacitance Reverse Recovery Time
Notes: 1. 2. 3. 4.
IR CT trr
nA A A nA pF ns
No purposefully added lead. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. Diode's Inc.'s "Green" Policy can be found on our website at http://www.diodes.com/products/lead_free/index.php. Product manufactured with date code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants. 5. Short duration pulse test used to minimize self-heating effect.
1N4448HWT
Document number: DS30395 Rev. 8 - 2
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(c) Diodes Incorporated
1N4448HWT
200 PD, POWER DISSIPATION (mW)
IF, INSTANTANEOUS FORWARD CURRENT (mA)
0 125 25 100 50 75 TA, AMBIENT TEMPERATURE (C) Fig. 1 Power Derating Curve 150
TA = 100C TA = 75 C T A = 50C TA = 25C TA = 0 C TA = -30C
100
150
10
100
1
50
0
0.1 0 1,000 800 400 600 200 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics
2.5
IR, INSTANTANEOUS REVERSE CURRENT (A)
10.0
trr, REVERSE RECOVERY TIME (nS)
2.0
1.0
1.5
0.10
1.0
0.01
0.5
0.001 0
0
40 60 80 20 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
2 4 6 8 10 IF, FORWARD CURRENT (mA) Fig. 4 Reverse Recovery Time vs. Forward Current
0
Ordering Information
(Notes 4 & 6) Case SOD-523 Packaging 3000/Tape & Reel
Part Number 1N4448HWT-7 (Note 7)
Notes:
6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 7. Dispensed in every other cavity of the tape.
Marking Information
T8
Cathode Band
T8 = Product Type Marking Code
1N4448HWT
Document number: DS30395 Rev. 8 - 2
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July 2009
(c) Diodes Incorporated
1N4448HWT
Package Outline Dimensions
L
C
H
SOD-523 Dim Min Max A 0.25 0.35 B 0.70 0.90 C 1.50 1.70 H 1.10 1.30 K 0.55 0.65 L 0.10 0.30 M 0.10 0.12 All Dimensions in mm
A B K M
Suggested Pad Layout
C
X
Y
G Z
Dimensions Value (in mm) Z 2.3 G 1.1 X 0.8 Y 0.6 C 1.7
1N4448HWT
Document number: DS30395 Rev. 8 - 2
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(c) Diodes Incorporated
1N4448HWT
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) 2009, Diodes Incorporated www.diodes.com
1N4448HWT
Document number: DS30395 Rev. 8 - 2
4 of 4 www.diodes.com
July 2009
(c) Diodes Incorporated

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