© 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
• High Surge Current Capability: 50 A 10 x 1000 msec, for Controlled
Temperature Environments
• The MMT05B350T3 is used to help equipment meet various
regulatory requirements including: Bellcore 1089, ITU K.20 and
K.21, IEC 950, UL 1459 and 1950 and FCC Part 68
• Bidirectional Protection in a Single Device
• Little Change of Voltage Limit with Transient Amplitude or Rate
• Freedom from Wearout Mechanisms Present in Non−Semiconductor
Devices
• Fail−Safe, Shorts When Overstressed, Preventing Continued
Unprotected Operation
• Surface Mount Technology (SMT)
• Indicates UL Recognized − File #E210057
• Pb−Free Package is Available
MAXIMUM RATINGS (T
J
= 25°C unless otherwise noted)
Rating
Symbol Value Unit
Off−State Voltage − Maximum V
DM
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
I
PPS1
I
PPS2
I
PPS3
I
PPS4
I
PPS5
I
PPS6
I
PPS7
±150
±150
±100
±100
±70
±70
±50
A(pk)
Non−Repetitive Peak On−State Current
60 Hz Full Sign Wave
I
TSM
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 Shipping
†
ORDERING INFORMATION
MMT05B350T3 SMB 12 mm Tape & Ree
(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 & Ree
(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
