Diodes SM12 User Manual

Features

• 300 Watts Peak Pulse Power (tp = 8x20μs)

• IEC 61000-4-2 (ESD): Air – 15kV, Contact – 8kV

• Typically Used at Computer Interface Protection, Data Line and

Power Line Protection

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

• Qualified to AEC-Q101 Standards for High Reliability

ADVANCE INFORMATION

SOT23

Top View

Mechanical Data

• Case: SOT23

• Case Material: Molded Plastic, “Green” Molding Compound.

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

• Weight: 0.0089 grams (approximate)

12

Device Schematic

DUAL COMMON ANODE TVS DIODE

3

SM12

Ordering Information (Note 4)

Part Number Case Packaging

SM12-7 SOT23 3,000/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 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.

Marking Information

Date Code Key

Year 2012 2013 2014 2015 2016 2017 2018

Code Z A B C D E F

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

ZBM

YM

SM12

Document number: DS35948 Rev. 6 - 2

ZBM = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: Z = 2012)
M = Month (ex: 9 = September)

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t

r

θ

P, P

OWER

P

T

O

P

P

U

RATIN

G

O

F

Maximum Ratings (@T

= 25°C unless otherwise specified.)

A

Characteristic Symbol Value Unit Conditions

Peak Pulse Power Dissipation PPP 300 W 8/20μs, Per Fig. 3
Peak Pulse Current
ESD Protection – Contact Discharge
ESD Protection – Air Discharge
Electrical Fast Transient Current

I

PP

V

ESD_Contac

V

ESD_Ai

I

EFT

12 A
±8 kV

±15 kV

40 A

8/20μs, Per Fig. 3
Standard IEC 61000-4-2(ESD)
Standard IEC 61000-4-2(ESD)
Standard IEC 61000-4-4(EFT)

Thermal Characteristics

Characteristic Symbol Value Unit

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

P

D

R

JA

T

, T

J

STG

250 mW
500

-65 to +150

SM12

°C/W

°C

Electrical Characteristics (@T

ADVANCE INFORMATION

= 25°C unless otherwise specified.)

A

Characteristic Symbol Min Typ Max Unit Test Conditions

Reverse Working Voltage VRWM - - 12.0 V ­Reverse Current (Note 6) IR - - 1.0 μA
Reverse Breakdown Voltage VBR 13.3 - 15.75 V
Reverse Clamping Voltage
Capacitance

Notes: 5. Device mounted on FR-4 PCB pad layout (2oz copper) 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

CL

C

T

300
250

Note 5

200

N (mW)

175

- - 19 V

- 95 - pF

100

75

%

V

= V

RWM

= 12.0V

R

I

= 1mA

R

IPP = 1A, tp = 8/20μs
VR = 0V, f = 1MHz, Pin 1 to 3

I
A

150

125

50

DISSI

100

D

75
50

LSE DE

EAK

25

PEAK POWER OR CURRENT

25

0

0

25

50 75

T , AMBIENT TEMPERATURE ( C)

A

125 175

100

150

°

Figure 1 Power Derating Curve

0

0

25 50

T , AMBIENT TEMPERATURE (°C)

A

75 100 125

150

175 200

Figure 2 Power Dissipation vs. Ambient Temperature

SM12

Document number: DS35948 Rev. 6 - 2

2 of 5

www.diodes.com

November 2012

© Diodes Incorporated