MMT08B350T3
Preferred Devices
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.
http://onsemi.com
(
)
BIDIRECTIONAL TSPD
80 AMP SURGE, 350 VOLTS
Secondary protection applications for electronic telecom equipment
at customer premises.
Features
• High Surge Current Capability: 80 Amps 10 x 1000 msec, for
Controlled Temperature Environments
MT1
MT2
• The MMT08B350T3 is used to help equipment meet various
regulatory requirements including: Bellcore 1089, ITU K.20 & K.21,
IEC 950, UL 1459 & 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
SMB
(No Polarity)
(Essentially JEDEC DO−214AA)
CASE 403C
• Surface Mount Technology (SMT)
MARKING DIAGRAM
•
Indicates UL Recognized − File #E210057
• Pb−Free Package is Available
MAXIMUM RATINGS (T = 25°C unless otherwise noted)
J
AYWW
RPCM G
G
Rating
Symbol Value
Unit
V
Off−State Voltage − Maximum
V
300
DM
Maximum Pulse Surge Short Circuit Current
Non−Repetitive
A(pk)
Double Exponential Decay Waveform
(−25°C Initial Temperature) (Notes 1 and 2)
2 x 10 msec
A
Y
WW
= Assembly Location
= Year
= Work Week
I
250
250
150
150
100
100
80
PPS1
PPS2
PPS3
PPS4
PPS5
PPS6
PPS7
I
I
I
I
I
I
8 x 20 msec
10 x 160 msec
10 x 360 msec
10 x 560 msec
10 x 700 msec
10 x 1000 mse
RPCM = Device Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Non−Repetitive Peak On−State Current 60 Hz
Full Sign Wave
I
32
A(pk)
TSM
†
Device
Package
Shipping
MMT08B350T3
MMT08B350T3G
SMB
2500/Tape and Reel
2500/Tape and Reel
Maximum Non−Repetitive Rate of Change of
On−State Current Exponential Waveform,
< 100 A
di/dt
"300
A/ms
SMB
(Pb−Free)
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
†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.
1. Allow cooling before testing second polarity.
Preferred devices are recommended choices for future use
2. Measured under pulse conditions to reduce heating.
and best overall value.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
February, 2006 − Rev. 1
MMT08B350T3/D