1

MOTOROLA

MMQA Series

SC59 Quad Monolithic

Common Anode

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, medical equipment, and other applica-

tions. Its quad junction common anode design protects four separate lines

using only one package. These devices are ideal for situations where board

space is at a premium.

Specification Features:

• SC-59 Package Allows Four Separate Unidirectional Configurations

• Peak Power — Min. 24 W @ 1.0 ms (Unidirectional), per Figure 5 Waveform

• Peak Power — Min. 150 W @ 20 ms (Unidirectional), per Figure 6 Waveform

• Maximum Clamping Voltage @ Peak Pulse Current

• Low Leakage < 2.0 µA

• ESD Rating of Class N (exceeding 16 kV) per the Human Body Model

Mechanical Characteristics:

• Void Free, Transfer-Molded, Thermosetting Plastic Case

• Corrosion Resistant Finish, Easily Solderable

• Package Designed for Optimal Automated Board Assembly

• Small Package Size for High Density Applications

• Available in 8 mm Tape and Reel

Use the Device Number to order the 7 inch/3,000 unit reel. Replace

with “T3” in the Device Number to order the 13 inch/10,000 unit reel.

Characteristic

Symbol

Value

Unit

Peak Power Dissipation @ 1.0 ms (1) @ TA ≤ 25°C

Ppk

24

Watts

Peak Power Dissipation @ 20

ms (2) @ TA ≤ 25°C

Ppk

150

Watts

Total Power Dissipation on FR-5 Board (3) @ TA = 25°C

1.8

mW/

°C

Thermal Resistance from Junction to Ambient

R

θJA

556

°C/W

Total Power Dissipation on Alumina Substrate (4) @ TA = 25°C

Derate above 25

°C

2.4

mW/

°C

Thermal Resistance from Junction to Ambient

R

θJA

417

°C/W

Junction and Storage Temperature Range

TJ, Tstg

°C

Lead Solder Temperature — Maximum (10 Second Duration)

TL

260

°C

1. Non-repetitive current pulse per Figure 5 and derate above TA = 25°C per Figure 4.

2. Non-repetitive current pulse per Figure 6 and derate above TA = 25°C per Figure 4.

3. FR-5 = 1.0 x 0.75 x 0.62 in.

4. Alumina = 0.4 x 0.3 x 0.024 in., 99.5% alumina

Preferred devices are Motorola recommended choices for future use and best overall value.

Thermal Clad is a trademark of the Bergquist Company

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Order this document

by MMQA/D

© Motorola, Inc. 1996

MMQA Series

SC-59 QUAD

TRANSIENT VOLTAGE

SUPPRESSOR

24 WATTS PEAK POWER

5.6 – 33 VOLTS

CASE 318F-01

STYLE 1

SC-59 PLASTIC

Motorola Preferred Devices

PIN 1. CATHODE

2. ANODE

3. CATHODE

4. CATHODE

5. ANODE

6. CATHODE

1

2

3

4

5

6

1

2

3

6

5

4