Diodes MMBD4448HTM User Manual

Features

• Fast Switching Speed

• Small Surface Mount Package

• For General Purpose Switching Applications

• High Conductance

• Lead Free/RoHS Compliant (Note 1)

• "Green" Device (Notes 2 and 3)

SOT-26

Top View

MMBD4448HTM

SURFACE MOUNT FAST SWITCHING DIODE ARRAY

Mechanical Data

• Case: SOT-26

• Case Material: Molded Plastic, "Green" Molding Compound,

Note 5. UL Flammability Classification Rating 94V-0

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

• Terminals: Matte Tin Finish annealed over Copper leadframe

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

• Orientation: See Diagram

• Weight: 0.016 grams (approximate)

Top View

Internal Schematic

Ordering Information (Notes 3 & 4)

Part Number Case Packaging

MMBD4448HTM-7-F SOT-26 3000/Tape & Reel

Notes: 1. No purposefully added lead.

Date Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants

2. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com.

3. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to

4. For packaging details, go to our website at http://www.diodes.com.

Marking Information

Date Code Key

Year 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Code N P R S T U V W X Y Z A B C

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

KAD

YM

KAD = Product Type Marking Code
YM = Date Code Marking
Y =Year (ex: T = 2006)
M = Month (ex: 9 = September)

MMBD4448HTM

Document number: DS30302 Rev. 8 - 2

1 of 4

www.diodes.com

February 2011

© Diodes Incorporated

)

θ

(BR)

r

P, P

O

R

P

TIO

N

TAN

TAN

O

U

F

O

R

R

C

U

R

REN

T

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 (Note 5)
Average Rectified Output Current (Note 5)
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

JA

, T

J

STG

MMBD4448HTM

100 V

80 V

57 V
500 mA
250 mA

4.0

1.0

A

350 mW
357

-65 to +150

°C/W

°C

Electrical Characteristics @T

= 25°C unless otherwise specified

A

Characteristic Symbol Min Max Unit Test Condition

Reverse Breakdown Voltage (Note 6)

Forward Voltage

Reverse Current (Note 6)

Total Capacitance
Reverse Recovery Time

Notes: 5. Device mounted on FR-5 PCB 1.0 x 0.75 x 0.062 inch pad layout as shown on Diodes Inc. suggested pad layout AP02001, which can be found on our

website at http://www.diodes.com.

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

V

V

F

I

⎯

R

C

⎯

T

t

⎯

r

300

250

80

R

0.62

⎯

⎯

⎯

⎯

0.72

0.855

1.0

1.25
100

50
30
25

3.5 pF

4.0 ns

V

IR = 2.5μA
I

F

I

F

V

I

F

I

F

V

nA

μA
μA

nA

R

V

R

V

R

V

R

VR = 6, f = 1.0MHz
VR = 6V, IF = 5mA

= 5.0mA
= 10mA
= 100mA
= 150mA

= 70V
= 75V, TJ = 150°C
= 25V, TJ = 150°C
= 20V

1,000

(mA)

100

N (mW)

200

A

150

DISSI

100

WE

D

50

0

0255075100

T , AMBIENT TEMPERATURE ( C)

A

Fig. 1 Power Derating Curve, Total Package (Note 5)

125

°

150

D
WA

10

T = -40ºC

A

S
E

1

S

0.1

F

I, I

0

V , INSTANTA NEOU S FORWARD VOLTAG E (V)

F

T = 0ºC

A

T = 25ºC

A

T = 75ºC

A

T = 125ºC

A

Fig. 2 Typical Forward C haracteristics, Per Eleme nt

1.61.20.4 0.8

MMBD4448HTM

Document number: DS30302 Rev. 8 - 2

2 of 4

www.diodes.com

February 2011

© Diodes Incorporated