®

®

. . . . . Engineered solutions for the transient environment

2929 South Fair Lane • Tempe, Arizona 85282 • USA

Tel 602-431-8101 • Fax 602-431-2288 • E-mail sales@protek-tvs.com • Web www.protek-tvs.com

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PMMAD1108

PMMAD1108

PMMAD1108

PMMAD1108

PMMAD1108

STEERING DIODE (RAIL CLAMP) ARRAY

IEC 1000-4 COMPATIBLE

SO-16 PACKAGE

CIRCUIT DIAGRAM

DESCRIPTION

This device is designed with discrete diodes for complete isolation. Each diode

can be individually tested according to the electrical characteristics. For transient

voltage protection, two diodes are configured in series with the anode of one

connect to the cathode of the other diode (See Rail Clamp Circuit).

APPLICATIONS

q

High Frequency Data Lines

q

RS-232 & RS-422 Interface Networks

q

10 Base T Networks

q

LAN/ WAN

q

Computer I/O Ports

FEATURES

q

IEC 1000-4-2, -4 & -5 Industry Requirements

q

Eight (8) Individual Steering Diodes

q

Designed for Rail Clamp Protection

q

ESD Protection > 40 kilovolts

q

Working Voltage > 50 Volts

q

UL 94V-0 Flammability Classification

q

Available in Standard SO-14 Surface Mount Package

MAXIMUM RATINGS

Package

Packaging

Approximate Weight

Device Markings

Miscellaneous

Molded SO-16 Surface Mount Package

Tube or 16mm Tape per EIA 481

0.15 grams

Logo & Part Number

Pin No. 1 Indicated by Dot on Top of Package

MECHANICAL CHARACTERISTICS

Continuous Power Dissipation

Operating & Storage Temperature

Continuous Forward Current

500mW

-65

° to +150°C

400mA

0

10

20

30

t - Time -

µs

FIGURE 1

PULSE WAVE FORM

100

50

0

t

I

TEST

WAVEFORM

PARAMETERS

t

t

t

f

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

PMMAD1108

8 ISOLATED DIODE ARRAY

RAIL CLAMP CIRCUIT

+

GND OR (-)

40

0.1

25

1.2

PROTEK

PART

NUMBER

° C Ambient Temperature

FORWARD

PEAK PULSE

CURRENT

(See Fig. 1)

@ 8/20

I

PP

AMPS

MAXIMUM

FORWARD

VOLTAGE

@ 100 mA

V

F

VOLTS

MAXIMUM

CAPACITANCE

@ 4 V, 1 MHz

C

pF

REVERSE

LEAKAGE

CURRENT

@ 40 V

I

RM

REPETITIVE

PEAK REVERSE

VOLTAGE

@ 10

V

PRP Min

VOLTS

PPMAD1108

50

5090 10/98

I/O Port