© Semiconductor Components Industries, LLC, 2006

November, 2006 − Rev. 7

1

Publication Order Number:

SMS05T1/D

SMS05T1 Series

SC−74 Quad Transient

Voltage Suppressor

for ESD Protection

This quad monolithic silicon voltage suppressor is designed for

applications requiring transient overvoltage protection capability. It is

intended for use in voltage and ESD sensitive equipment such as

computers, printers, business machines, communication systems and

other applications. This quad device provides superior surge

protection over current quad Zener MMQA series by providing up to

350 watts peak power.

Features

the Human Body Model

IEC 61000−4−2 (ESD) 15 kV (air) 8 kV (contact)

IEC 61000−4−4 (EFT) 40 A (5/50 ns)

IEC 61000−4−5 (lightning) 23 A (8/20

ms)

Typical Applications

Notebooks and Notebook Computers

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Peak Power Dissipation

8 x 20

350

W

Total Power Dissipation on FR−5 Board

Derate Above 25

°C

225

1.8

mW

mW/

°C

Thermal Resistance,

Junction−to−Ambient

556

°C/W

Junction and Storage

Temperature Range

−55 to +150

°C

Lead Solder Temperature

Maximum 10 Seconds Duration

260

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum

Ratings are stress ratings only. Functional operation above the Recommended

Operating Conditions is not implied. Extended exposure to stresses above the

Recommended Operating Conditions may affect device reliability.

1. Non−repetitive current pulse 8 x 20

mS exponential decay waveform

2. FR−5 = 1.0 x 0.75 x 0.62 in.

SC−74 QUAD TRANSIENT

VOLTAGE SUPPRESSOR

350 WATTS PEAK POWER

5 VOLTS

SC−74

CASE 318F

STYLE 1

1

2

3

6

5

4

MARKING DIAGRAM

PIN ASSIGNMENT

PIN 1. CATHODE

2. ANODE

3. CATHODE

4. CATHODE

5. ANODE

6. CATHODE

See specific marking information in the device marking

column of the Electrical Characteristics table on page 2 of

this data sheet.

DEVICE MARKING INFORMATION

http://onsemi.com

1

6

See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

1

xxx M

G

G

xxx = Specific Device Code

M

= Date Code*

G

= Pb−Free Package

(Note: Microdot may be in either location)

*Date Code orientation and/or position may

vary depending upon manufacturing location.