Breakover Voltage VBO
:
Breakover Current IBO Max
:
Non Repetitive On-State Current
:
Off-State Capacitance CO
:
Mounting Style
: SMD/SMT
Off-State Leakage Current @ VDRM IDRM
: 0.005 mA
Package / Case
: SMB
Maximum Operating Temperature
: + 125 C
Rated Repetitive Off-State Voltage VDRM
: 270 V
Holding Current (Ih Max)
: 340 mA (Typ)
On-State Voltage
: 3 V at 1 A
Features: ` High Surge Current Capability: 80 Amps 10 x 1000 sec, for Controlled Temperature Environments
` The MMT08B310 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
` Surface Mount Technology (SMT)
` Indicates UL Registered - File #E210057
Specifications
|
Rating |
Symbol |
Value |
Unit |
Off-State Voltage - Maximum
MMT08B310T3 |
VDM |
270 |
V |
|
Maximum Pulse Surge Short Circuit
Current Non-Repetitive
Double Exponential Decay Waveform
(Notes 1 and 2)
10 x 1000 sec
(-25°C Initial Temperature)
8 x 20 sec
10 x 160 sec
10 x 560 sec |
IPPS1
IPPS2
IPPS3
IPPS4 |
80
250
150
100 |
A(pk) |
Maximum Non-Repetitive Rate of Change of
On-State Current
Double Exponential Waveform,
R = 1.0, L = 1.5 H, C = 1.67 F,
Ipk = 110A |
di/dt |
100 |
A/s |
` Allow cooling before testing second polarity.
` Measured under pulse conditions to reduce heating.
DescriptionThese MMT08B310T3 Thyristor Surge Protective devices (TSPD) prevent overvoltage damage to sensitive circuits by lightning, induction and power line crossings. MMT08B310T3 are breakover-triggered crowbar protectors. Turn-off occurs when the surge current falls below the holding current value.
MMT08B310T3 Data Sheet
