MMBD4448-7-F Datasheet MMBD4448-7-F, MMBD4448-7 | P1-P3

MMBD4448

Document number: DS12011 Rev. 17 - 2

1 of 4

www.diodes.com

February 2011

MMBD4448

SURFACE MOUNT SWITCHING DIODE

Features

• Fast Switching Speed

• Surface Mount Package Ideally Suited for Automated Insertion

• For General Purpose Switching Applications

• High Conductance

• Lead, Halogen and Antimony Free, RoHS Compliant

• "Green' Device (Notes 1 and 2)

Mechanical Data

• Case: SOT-23

• 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: See Diagram

• Weight: 0.008 grams (approximate)

Ordering Information (Note 3)

Part Number Case Packaging

MMBD4448-7-F SOT-23 3000/Tape & Reel

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

2. Product manufactured with Date Code V9(week 34, 2008) and newer are built with Green Molding Compound. Product manufactured prior to Date Code

V9 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.

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

Marking Information

Date Code Key

Year 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Code K L M 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

Top View

SOT-23

Top View

Internal Schematic

KA3 = Product Type Marking Code

YM = Date Code Marking

Y = Year (ex: N = 2002)

M = Month (ex: 9 = September)

KA3

YM

MMBD4448

Document number: DS12011 Rev. 17 - 2

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February 2011

MMBD4448

Maximum Ratings @T

A

= 25°C unless otherwise specified

Characteristic Symbol Value Unit

Non-Repetitive Peak Reverse Voltage

V

RM

100 V

Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage

DC Blocking Voltage

V

RRM

V

RWM

V

R

75 V

RMS Reverse Voltage

V

R

(

RMS

)

53 V

Forward Continuous Current (Note 4)

I

FM

500 mA

Average Rectified Output Current (Note 4)

I

O

250 mA

Non-Repetitive Peak Forward Surge Current @ t = 1.0

μ

s

@ t = 1.0s

I

FSM

4.0

1.0

A

Thermal Characteristics

Characteristic Symbol Value Unit

Power Dissipation (Note 4)

P

D

350 mW

Thermal Resistance Junction to Ambient Air (Note 4)

R

θ

JA

357

°C/W

Operating and Storage Temperature Range

T

J

, T

STG

-65 to +150

°C

Electrical Characteristics @T

A

= 25°C unless otherwise specified

Characteristic Symbol Min Max Unit Test Condition

Reverse Breakdown Voltage (Note 5)

V

(

BR

)

R

75

⎯

V

I

R

= 2.5μA

Forward Voltage

V

F

0.62

⎯

0.72

0.855

1.0

1.25

V

I

F

= 5.0mA

I

F

= 10mA

I

F

= 100mA

I

F

= 150mA

Reverse Current (Note 5)

I

R

⎯

2.5

50

30

25

μA

nA

V

R

= 75V

V

R

= 75V, T

J

= 150°C

V

R

= 25V, T

J

= 150°C

V

R

= 20V

Total Capacitance

C

T

⎯

4.0 pF

V

R

= 0, f = 1.0MHz

Reverse Recovery Time

t

rr

⎯

4.0 ns

I

F

= I

R

= 10mA,

I

rr

= 0.1 x I

R

, R

L

= 100Ω

Notes: 4. Part mounted on FR-4 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.

0

100

120

80

160

200

P

,

P

O

WE

R

DISSI

P

A

T

I

O

N (mW)

D

T , AMBIENT TEMPERATURE (°C)

Fig. 1 Power Derating Curve

A

200

300

500

0

40

400

Note 4

10

100

1,000

1

0.1

0

1.61.20.4

0.8

I, I

N

S

T

A

N

T

A

N

E

O

U

S

F

O

R

WA

R

D

C

U

R

E

N

T

(mA)

F

V , INSTANTANEOUS FORWARD VOLTAGE (V)

Fig. 2 Typical Forward Characteristics

F

MMBD4448

Document number: DS12011 Rev. 17 - 2

3 of 4

www.diodes.com

February 2011

MMBD4448

0.1

1

10

100

1,000

10,000

0

20 40 60 80 100

V , INSTANTANEOUS REVERSE VOLTAGE (V)

Fig. 3 Typical Reverse Characteristics

R

I, INS

T

AN

T

ANE

O

U

S

R

EVE

R

SE

C

U

R

EN

T

(nA)

R

0

0.5

1.0

2.5

2.0

1.5

3.0

01020 4030

C

,

T

O

T

AL

C

A

P

A

C

I

T

A

N

C

E (p

F

)

T

V , DC REVERSE VOLTAGE (V)

Fig. 4 Total Capacitance vs. Reverse Voltage

R

f = 1MHz

Package Outline Dimensions

Suggested Pad Layout

SOT-23

Dim Min Max Typ

A 0.37 0.51 0.40

B 1.20 1.40 1.30

C 2.30 2.50 2.40

D 0.89 1.03 0.915

F 0.45 0.60 0.535

G 1.78 2.05 1.83

H 2.80 3.00 2.90

J 0.013 0.10 0.05

K 0.903 1.10 1.00

K1 - - 0.400

L 0.45 0.61 0.55

M 0.085 0.18 0.11

α

0° 8° -

All Dimensions in mm

Dimensions Value (in mm)

Z 2.9

X 0.8

Y 0.9

C 2.0

E 1.35

A

M

J

L

D

F

B

C

H

K

G

K1

X

E

Y

C

Z

MMBD4448-7-F

MMBD4448-7-F

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