Diodes SDM40E20L, SDM40E20S, SDM40E20C, SDM40E20A User Manual

A

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Features

• Very Low Forward Voltage Drop

• Guard Ring Construction for Transient Protection

• High Conductance

• Lead, Halogen and Antimony Free, RoHS Compliant

"Green" Device (Notes 4, 5 and 6)

Top View

SDM40E20LS

SDM40E20L /S /C /

DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE

Mechanical Data

• Case: SOT-23

• Case Material: Molded Plastic. UL Flammability Classification

Rating 94V-0

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

• Polarity: See Diagram

• Leads: Solderable per MIL-STD-202, Method 208

• Terminals: SDM40E20L/S/A Finish ⎯ Matte Tin Finish

annealed over Alloy 42 leadframe.
SDM40E20LC Finish ⎯ Matte Tin Finish
annealed over CDA194 leadframe.

• Marking Information: See Page 2

• Ordering Information: See Page 2

• Weight: 0.008 grams (approximate)

SDM40E20LC

SDM40E20LA

Maximum Ratings @T

Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.

Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage

RMS Reverse Voltage
Forward Continuous Current (Note 1)
Non-Repetitive Peak Forward Surge Current

8.3ms single half sine-wave superimposed on rated load

= 25°C unless otherwise specified

A

Characteristic Symbol Value Unit

Thermal Characteristics

Characteristic Symbol Value Unit

(Note 2)
(Note 2)

Operating and Storage Temperature Range

Electrical Characteristics @T

Characteristic Symbol Min Typ Max Unit Test Conditions

Reverse Breakdown Voltage (Note 3)
Forward Voltage Drop

Leakage Current (Note 3)
Total Capacitance

Notes: 1. Device mounted on FR-5 1.0 x 0.75 x 0.062 inch PCB pad layout.

6. Product manufactured with Green Molding Compound and does not contain Halogens or Sb

SDM40E20L /S /C /A

Document number: DS30298 Rev. 11 - 2

2. Device mounted on Alumina PCB, 0.4 inch x 0.3 inch x 0.024 inch pad layout.

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

4. No purposefully added lead. Halogen and Antimony Free.

5. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.

= 25°C unless otherwise specified

A

V

RRM

V

RWM

VR

V

R(RMS)

IFM

I

FSM

PD

R

JA

θ

T

J, TSTG

V

(BR)R

VF

IR

CT ⎯

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20

⎯
⎯

⎯
⎯

⎯
⎯

⎯
⎯

⎯

120

2O3

20 V

14 V

0.4 A
2 A

225 Power Dissipation (Note 1)
300
444 Typical Thermal Resistance Junction to Ambient (Note 1)
333

-65 to +125

⎯

0.310

0.430
100

250

⎯

Fire Retardants.

V
V

μA
pF

mW

°C/W

°C

IR = 0.5mA
IF = 0.1A
IF = 0.5A
VR = 10V
VR = 20V
f = 1MHz, VR = 0VDC

June 2008

© Diodes Incorporated

A

NSTAN

TANEO

U

FORWAR

D CUR

REN

T

C, TOT

CAPACITANC

F

RAGE FORWARD CUR

RENT

SDM40E20L /S /C /

10

(A)

1

0.1

S

0.01

F

I, I

0.001
0

V , INSTANTA NEOUS FORWARD VOL TAGE (V)

F

Fig. 1 Typical Forward Ch ar acteristics, Per Elem ent

0.6 0.80.40.2

1.0

10,000

1000

100

10

1

0.1

0.01

R

0.001

I , INSTANTANEOUS REVERSE CURRENT (µA)

0

V , INSTANT ANEOUS REVERSE VOLTAGE (V)

R

Fig. 2 Typical Reverse Characteristics, Per Element

10

20

0.40

f = 1.0MHz

(A)

)

E (p

0.30

0.20

60

AL

40

T

20

0

0

Fig. 3 Total Capacitance vs. Reverse Voltage, Per Element

V , DC REVERSE VOLTAGE (V)

R

10

155

20

0.10

F(AV)

I, AVE

0

050100

25 75 125

T , AMBIENT TEMPERATURE ( C)

A

Fig. 4 Forward Current Derating Curve, Per Element

150

°

Ordering Information (Note 7)

Part Number Case Packaging

SDM40E20LS-7-F SOT-23 3000/Tape & Reel

SDM40E20LC-7 SOT-23 3000/Tape & Reel
SDM40E20LA-7 SOT-23 3000/Tape & Reel

Notes: 7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.

Marking Information

KSW

KSW = SDM40E20LS Product
Type Marking Code
YM = Date Code Marking

YM

Y = Year ex: T = 2006
M = Month ex: 9 = September

KWS

KWS = SDM40E20LC Product

Type Marking Code

YM = Date Code Marking

YM

Y =Year ex: T = 2006
M = Month ex: 9 = September

KWA

Date Code Key

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

Code 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

SDM40E20L /S /C /A

Document number: DS30298 Rev. 11 - 2

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KWA = SDM40E20LA Product
Type Marking Code
YM = Date Code Marking

YM

Y =Year ex: T = 2006
M = Month ex: 9 = September

June 2008

© Diodes Incorporated