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1N4448HWS
SURFACE MOUNT FAST SWITCHING DIODE
Features
* * * * * * Fast Switching Speed Small Surface Mount Package For General Purpose Switching Applications High Conductance Lead Free/RoHS Compliant (Note 1) "Green" Device (Note 2)
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 Weight: 0.004 grams (approximate)
SOD-323
Top View
Ordering Information (Note 3)
Part Number 1N4448HWS-7-F 1N4448HWS-13-F
Notes:
Case SOD-323 SOD-323
Packaging 3,000/Tape & Reel 10,000/Tape & Reel
1. No purposefully added lead. 2. Diodes Inc.s "Green" Policy can be found on our website at http://www.diodes.com 3. For packaging details, go to our website at http://www.diodes.com.
Marking Information
T5
Cathode Band
T5 = Product Type Marking Code
1N4448HWS
Document number: DS30196 Rev. 10 - 2
1 of 4 www.diodes.com
November 2010
(c) Diodes Incorporated
1N4448HWS
Maximum Ratings @TA = 25C unless otherwise specified
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 Symbol VRM VRRM VRWM VR VR(RMS) IFM IO @ t = 1.0s @ t = 1.0s IFSM Value 100 80 57 500 250 4.0 1.0 Unit V V V mA mA A
Thermal Characteristics
Characteristic Power Dissipation (Note 4) Thermal Resistance Junction to Ambient Air (Note 4) Operating and Storage Temperature Range Symbol PD RJA TJ , TSTG Value 200 625 -65 to +150 Unit mW C/W C
Electrical Characteristics @TA = 25C unless otherwise specified
Characteristic Reverse Breakdown Voltage (Note 5) Forward Voltage Symbol VBR(R) VFM Min 80 0.62 Max 0.72 0.855 1.0 1.25 100 50 30 25 3.5 4.0 Unit V V Test Condition 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, f = 1.0MHz IF = IR = 10mA, Irr = 0.1 x IR, RL = 100
Peak Reverse Current (Note 5) Total Capacitance Reverse Recovery Time
Notes:
IRM CT trr
nA A A nA pF ns
4. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com. 5. Short duration pulse test used to minimize self-heating effect.
IF, INSTANTANEOUS FORWARD CURRENT (mA)
300
100
PD, POWER DISSIPATION (mW)
200
10
TA = 25C
Note 4
100
1
0 0 50 25 75 125 150 TA, AMBIENT TEMPERATURE ( C) Fig. 1 Power Derating Curve 175
0.1
0
1,000 400 600 800 200 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics
1N4448HWS
Document number: DS30196 Rev. 10 - 2
2 of 4 www.diodes.com
November 2010
(c) Diodes Incorporated
1N4448HWS
IR, INSTANTANEOUS REVERSE CURRENT (A)
10.0
4
1.0
CT, TOTAL CAPACITANCE (pF)
TA= 100C
3
TA = 75 C
0.10
T A = 50C TA = 25C
2
0.01
TA = -30C
T A = 0C
1
0.001 0
40 60 80 20 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics
0 0 1 2 4 5 6 3 VR, DC REVERSE VOLTAGE (V) Fig. 4 Total Capacitance vs. Reverse Voltage
2.5 trr, REVERSE RECOVERY TIME (nS)
2.0
1.5
1.0
0.5
0 2 4 6 8 10 IF, FORWARD CURRENT (mA) Fig. 5 Reverse Recovery Time vs. Forward Current 0
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
1N4448HWS
Document number: DS30196 Rev. 10 - 2
3 of 4 www.diodes.com
November 2010
(c) Diodes Incorporated
1N4448HWS
Suggested Pad Layout
C
X
Dimensions Value (in mm) Z 3.75 G 1.05 X 0.65 Y 1.35 C 2.40
Y G Z
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
1N4448HWS
Document number: DS30196 Rev. 10 - 2
4 of 4 www.diodes.com
November 2010
(c) Diodes Incorporated

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