Diodes SDM20U30 User Manual

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Features

• Low Forward Voltage Drop

• Guard Ring Construction for Transient Protection

• Negligible Reverse Recovery Time

• Low Capacitance

• Ultra-Small Surface Mount Package

• Lead Free By Design/RoHS Compliant (Note 1)

• "Green" Device, (Notes 4 and 5)

• Qualified to AEC-Q101 Standards for High Reliability

Maximum Ratings @T

Characteristic Symbol Value Unit

Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage

RMS Reverse Voltage
Mean Rectifying Current (Note 2)
Peak Forward Surge Current @ 8.3ms Half Sine

= 25°C unless otherwise specified

A

SDM20U30

SURFACE MOUNT SCHOTTKY BARRIER DIODE

Mechanical Data

• Case: SOD-523

• Case Material: Molded Plastic, "Green" Molding

Compound, Note 5. UL Flammability Classification Rating 94V-0

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

• Terminal Connections: Cathode Band

• Terminals: Finish - Matte Tin annealed over Alloy 42 leadframe.

Solderable per MIL-STD-202, Method 208

• Marking Information: See Page 2

• Ordering Information: See Page 2

• Weight: 0.002 grams (approximate)

Top View

V
V

V

R(RMS)

I

RRM
RWM

VR

IO

FSM

30 V

21 V

200 mA

1.0 A

Thermal Characteristics

Characteristic Symbol Value Unit

Power Dissipation (Note 2)
Thermal Resistance, Junction to Ambient Air (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

Peak Reverse Current (Note 3)
Total Capacitance

Notes: 1. No purposefully added lead.

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

SDM20U30

Document number: DS30397 Rev. 10 - 2

2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.

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

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

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

= 25°C unless otherwise specified

A

PD

R

JA

θ

TJ, T

STG

30

⎯ ⎯

⎯

V

(BR)R

VF

IR ⎯ ⎯

CT

1 of 3

www.diodes.com

⎯ ⎯

0.35

0.50
150

30

20

⎯

150 mW
667

-65 to +125

V

IR = 150μA
IF = 20mA

V

IF = 200mA
VR = 30V

μA
μA

VR = 10V

pF

VR = 0V, f = 1.0MHz

January 2009

© Diodes Incorporated

°C/W

°C

TANT

O

U

O

R

RD C

URRENT

NSTAN

TANEO

U

R

R

C

URREN

T

C, TOT

CAPACITANC

F

P, P

OWER

PATIO

N

1,000

(mA)

100

10

WA

1

T = 125°C

A

T = 75°C

A

T = 25°C

A

S F

10m

(A)

1m

SE

EVE
S

SDM20U30

.1

ANE

T = -25°C

A

.01

R

F

I , INS

.001

0200

V , INSTANT ANEOUS FORWARD VOLT AGE (mV)

F

30

25

)

E (p

20

400 600

Fig. 1 Typical Forward Characteristics

f = 1MHz

800

I, I

(mW)

100n

5

0

V , INSTANT ANEOUS REVERSE VOLTAGE (V)

R

10

15

Fig. 2 Typical Reverse Characteristics

200

150

20

25

30

15

100

DISSI

AL

10

50

T

D

5

0

02

64

8

V , DC REVERSE VOLT AGE (V)

R

10

12

0

025

Fig. 3 Total Capacitance vs. Reverse Voltage

Ordering Information (Notes 4 and 6)

Part Number Case Packaging

SDM20U30-7 (Note 7) SOD-523 3000/Tape & Reel

SDM20U30-76K SOD-523 6000/Tape & Reel

Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.

7. Dispensed in every other cavity of the tape.

Marking Information

LM

LM = Product Type Marking Code

50

T , AMBIENT TEMPERATURE ( C)

A

75

100

°

Fig. 4 Power Derating Curve

125

SDM20U30

Document number: DS30397 Rev. 10 - 2

2 of 3

www.diodes.com

January 2009

© Diodes Incorporated