© Semiconductor Components Industries, LLC, 2006

May, 2006 − Rev. 2

1

Publication Order Number:

MMT05B350T3/D

MMT05B350T3

Preferred Devices

Product Preview

Thyristor Surge Protectors

High Voltage Bidirectional TSPD

These Thyristor Surge Protective devices (TSPD) prevent

overvoltage damage to sensitive circuits by lightning, induction and

power line crossings. They are breakover−triggered crowbar

protectors. Turn−off occurs when the surge current falls below the

holding current value.

Secondary protection applications for electronic telecom equipment

at customer premises.

Features

Temperature Environments

regulatory requirements including: Bellcore 1089, ITU K.20 and

K.21, IEC 950, UL 1459 and 1950 and FCC Part 68

Devices

Unprotected Operation

•

Indicates UL Recognized − File #E210057

Rating

Symbol

Value

Unit

Off−State Voltage − Maximum

300

V

Maximum Pulse Surge Short Circuit Current

Non−Repetitive Double Exponential Decay

Waveform (−25

°C Initial Temperature)

(Notes 1 and 2)

2 x 10

msec

8 x 20

msec

10 x 160

msec

10 x 360

msec

10 x 560

msec

10 x 700

msec

10 x 1000

msec

±150

±150

±100

±100

±70

±70

±50

A(pk)

Non−Repetitive Peak On−State Current

60 Hz Full Sign Wave

32

A(pk)

Maximum Non−Repetitive Rate of Change of

On−State Current Exponential Waveform, < 100 A

di/dt

"300

A/

ms

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. Allow cooling before testing second polarity.

2. Measured under pulse conditions to reduce heating.

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

BIDIRECTIONAL TSPD

50 AMP SURGE, 350 VOLTS

Device

Package

ORDERING INFORMATION

MMT05B350T3

SMB

12 mm Tape & Reel

(2.5 K/Reel)

MT1

MT2

SMB

(No Polarity)

(Essentially JEDEC DO−214AA)

CASE 403C

(

)

MARKING DIAGRAMS

http://onsemi.com

Preferred devices are recommended choices for future use

and best overall value.

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

MMT05B350T3G

SMB

(Pb−Free)

12 mm Tape & Reel

(2.5 K/Reel)

A

= Assembly Location

Y

= Year

WW

= Work Week

RPBM = Specific Device Code

G

= Pb−Free Package

(Note: Microdot may be in either location)

AYWW

RPBM

G

G