User Manual

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1N4448WSF

Document number: DS35380 Rev. 3 - 2

1 of 4

www.diodes.com

August 2011

1N4448WSF

NEW PRODUCT

SURFACE MOUNT FAST SWITCHING DIODE

Features

• Fast Switching Speed: t

≤ 4.0ns

• Low Leakage Current: I

≤ 25nA

• Low Capacitance: C

≤ 4pF

• Flat Lead for High Thermal Efficiency

• Small Surface Mount Package

• Lead, Halogen and Antimony Free, RoHS Compliant (Note 1)

• "Green" Device (Note 2)

• Qualified to AEC-Q101 Standards for High Reliability

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

• Terminal Connections: Cathode Band

• Terminals: Finish - Matte Tin annealed over Copper Alloy

leadframe. Solderable per MIL-STD-202, Method 208

• Weight: 0.007 grams (approximate)

Ordering Information (Note 3)

Part Number Qualification Case Packaging

1N4448WSF-7 Commercial SOD323F 3000/Tape & Reel

1N4448WSFQ-7 Automotive SOD323F 3000/Tape & Reel

Notes: 1. No purposefully added lead. Halogen and Antimony Free.

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

Date Code Key

Year 2011 2012 2013 2014 2015 2016 2017 2018

Code Y Z A B C D E F

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

TK = Product Type Marking Code

YM = Date Code Marking

Y = Year (ex: Y = 2011)

M = Month (ex: 9 = September)

Summary of content (4 pages)

PAGE 1
N4448WSF SURFACE MOUNT FAST SWITCHING DIODE Features Mechanical Data • • • • • • • • • • NEW PRODUCT Fast Switching Speed: trr ≤ 4.0ns Low Leakage Current: IR ≤ 25nA Low Capacitance: CT ≤ 4pF Flat Lead for High Thermal Efficiency Small Surface Mount Package Lead, Halogen and Antimony Free, RoHS Compliant (Note 1) "Green" Device (Note 2) Qualified to AEC-Q101 Standards for High Reliability • • • • Case: SOD323F Case Material: Molded Plastic, “Green Molding Compound”.
PAGE 2
1N4448WSF Maximum Ratings @TA = 25°C unless otherwise specified Characteristic Non-Repetitive Peak Reverse Voltage Symbol VRM VRRM VRWM VR VR(RMS) IFM IO NEW PRODUCT 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 Value 100 Unit V 75 V V mA mA IFSM 53 500 250 4 0.5 Symbol PD RθJA TJ, TSTG Value 400 313 -65 to +150 Unit mW °C/W °C @ t = 1.
PAGE 3
1N4448WSF IF, INSTANTANEOUS FORWARD CURRENT (A) PD, POWER DISSIPATION (mW) 400 Note 4 300 200 100 0 50 25 75 100 125 TA, AMBIENT TEMPERATURE (° C) Fig. 1 Forward Current Derating Curve 0 1 0.1 0.01 0.001 0.0001 150 0 0.4 0.8 1.2 1.6 VF, INSTANTANEOUS FORWARD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 1.5 100 f = 1MHz TA = 150° C 10 CT, TOTAL CAPACITANCE (pF) IR, INSTANTANEOUS REVERSE CURRENT(μA) NEW PRODUCT 500 TA = 125° C 1 TA = 8 5° C 0.1 TA = 25° C 0.01 1 0.
PAGE 4
1N4448WSF Suggested Pad Layout C Y (2x) Dimensions Value (in mm) X 0.710 Y 0.403 C 2.700 NEW PRODUCT X (2x) 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).