Diodes 1N4448HWS User Manual

)



1N4448HWS

SURFACE MOUNT FAST SWITCHING DIODE

Features

 Fast Switching Speed
 Small Surface Mount Package
 For General Purpose Switching Applications
 High Conductance
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)

Mechanical Data

 Case: SOD323
 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)

SOD323

Top View

Ordering Information (Note 4)

Part Number Qualification Case Packaging

1N4448HWS-7-F Commercial SOD323 3,000/Tape & Reel

1N4448HWSQ-7-F Automotive SOD323 3,000/Tape & Reel

1N4448HWS-13-F Commercial SOD323 10,000/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

Cathode Band

T5

T5 = Product Type Marking Code

Maximum Ratings (@T

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

= +25°C, unless otherwise specified.)

A

V

V

RM

V

RRM

V

RWM

V

R

R(RMS

I

FM

I

O

I

FSM

100 V

80 V

57 V
500 mA
250 mA

4.0

1.0

A

Thermal Characteristics

Characteristic Symbol Value Unit

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

1N4448HWS

Document number: DS30196 Rev. 12 - 2

www.diodes.com

1 of 4

P

D

R

JA

T

, T

J

STG

200 mW
625 °C/W

-65 to +150 °C

September 2013

© Diodes Incorporated

)

P, P

OWER

PATIO

C

O

C

PAC

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 recommended pad layout, which can be found on our website at http://www.diodes.com.

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

V

BR(R

VFM

IRM

CT 

trr 

300

80

0.62







0.72

0.855

1.0

1.25

100



50
30
25

3.5 pF

4.0 ns

V

IR = 100A
IF = 5.0mA
IF = 10mA

V

IF = 100mA
IF = 150mA
VR = 80V

nA

VR = 75V, TJ = +150°C

μA
μA

VR = 25V, TJ = +150°C

nA

VR = 20V
VR = 0, f = 1.0MHz
IF = IR = 10mA,
I

= 0.1 x IR, RL = 100Ω

rr

1000

100

N (mW)

200

Note 5

10

DISSI

100

D

1

T = 150°C

A

T = 125°C

A

T = 85°C

A

T = 25°C

A

T = -55°C

A

1N4448HWS

F

0

025

T , AMBIENT TEMPERATURE ( C)

A

Fig. 1 Power Derating Curve

50

75 125 150

175

°

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



R

I , INSTANTANEOUS REVERSE CURRENT ( A)

0.001

10.0

T = 100 CA°

1.0

T = 75CA°

0.10

T = 50CA°

T = 25CA°

0.01

T = -30CA°

0

V , INSTANTANEOUS REVERSE VOLTAGE (V)

R

20

40 60 80

Fig. 3 Typical Reverse Characteristics

T = 0CA°

4

3

E (pF)

ITAN

2

A

TA L

, T

T

1

0

04

Fig. 4 Total Capacitance vs. Reverse Voltage

2516

V , DC REVERSE VOLTAGE (V)

R

3

1N4448HWS

Document number: DS30196 Rev. 12 - 2

2 of 4

www.diodes.com

September 2013

© Diodes Incorporated