Diodes 1N4448W User Manual

Features

• Fast Switching Speed

• Surface Mount Package Ideally Suited for Automated Insertion

• For General Purpose Switching Applications

• High Conductance

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

• Qualified to AEC-Q101 Standards for High Reliability

FAST SWITCHING SURFACE MOUNT DIODE

Mechanical Data

• Case: SOD123

• Case Material: Molded Plastic. UL Flammability Classification

Rating 94V-0

• Moisture Sensitivity: Level 1 per J-STD-020

• Terminals: Matte Tin Finish annealed over Alloy 42 leadframe

(Lead Free Plating). Solderable per MIL-STD-202, Method 208

• Polarity: Cathode Band

• Weight: 0.01 grams (approximate)

SOD123

Top View

1N4448W

Ordering Information (Note 4)

Part Number Compliance Case Packaging

1N4448W-7-F Standard SOD123 3000/Tape & Reel

1N4448WQ-7-F Automotive SOD123 3000/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 those 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 1998 1999 2000 … 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Code J K L … U V W X Y Z A B C D E F G

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

1N4448W

Document number: DS12002 Rev. 21 - 2

T5

YM

www.diodes.com

T5 = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: B = 2014)
M = Month (ex: 9 = September)

1 of 4

April 2014

© Diodes Incorporated

)

(BR)

P

P

O

R D

PATIO

N

Maximum Ratings (@T

= +25°C, unless otherwise specified.)

A

Characteristic Symbol Value Unit

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 @t = 1.0μs

@t = 1.0s

Thermal Characteristics

Characteristic Symbol Value Unit

Power Dissipation (Note 5)
Thermal Resistance Junction to Ambient Air (Note 5)
Operating and Storage Temperature Range

V

T

V

RM

V

RRM

V

RWM

V

R

R(RMS

I

FM

I

O

I

FSM

P

D

R

θJA

, T

J

STG

1N4448W

100 V

75 V

53 V
500 mA
250 mA

4.0

1.0

A

400 mW
315 °C/W

-65 to +150 °C

Electrical Characteristics (@T

= +25°C, unless otherwise specified.)

A

Characteristic Symbol Min Max Unit Test Condition

Reverse Breakdown Voltage (Note 6)

Forward Voltage

Peak Reverse Current (Note 6)

Total Capacitance

Reverse Recovery Time

Notes: 5. Part mounted on FR-4 PC board with 1 inch by 1 inch pad layout.

6. Short duration pulse test used to minimize self-heating effect.

500

400

R = 315°C/W

θ

JA

(mW)

300

ISSI

200

WE

,

D

100

V

R

V

FM

I

⎯

RM

C

T

t

⎯

rr

75

0.62

⎯
⎯
⎯

⎯

0.72

0.855

1.0

1.25

2.5
50
30
25

⎯

4.0 pF

4.0 ns

V

V

μA
μA
μA

nA

IR = 10μA

= 5.0mA

I

F

I

= 10mA

F

= 100mA

I

F

I

= 150mA

F

= 75V

V

R

= 75V, TJ = +150°C

V

R

V

= 25V, TJ = +150°C

R

= 20V

V

R

VR = 0, f = 1.0MHz

= IR = 10mA,

I

F

I

= 0.1 x IR, RL = 100Ω

rr

1000

100

T = 150°C

A

T = 125°C

A

10

T = 85°C

A

T = 25°C

A

1

T = -55°C

A

0

0 25 50 75 100 125 150

T , AMBIENT TEMPERATURE ( C)

A

Fig. 1 Power Derati ng Curve

1N4448W

Document number: DS12002 Rev. 21 - 2

°

2 of 4

www.diodes.com

F

0.1

I , INSTANTANEOUS FORWARD CURRENT (mA)

0 200 400 600 800 1000 1200 1400 1600

V , INSTANTANEOUS FORWARD VOLTAGE (mV)

F

Figure 2 Typical Forward Characteristics

April 2014

© Diodes Incorporated