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Triac (Bidirectional Triode Thyristor)
TMA16xB
Series
2
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
Peak Repetitive Off-State Voltage
VDRM
TMA164Bx
RGREF =
∞
400
V
TMA166Bx
600
V
Peak Non-Repetitive Off-State Voltage
VDSM
TMA164Bx
RGREF =
∞
500
V
TMA166Bx
700
V
Isolation Voltage
VISO
AC RMS applied for 1 minute between lead and case
2000
V
RMS On-State Current
IT(RMS)
50/60 Hz full cycle sine wave,
total Conduction angle (
α+) + (α–) = 360°,
TC = 98°C
16
A
Surge On-State Current
ITSM
f = 60 Hz
Full cycle sine wave, peak value, non-repetitive,
initial TJ = 125°C
190
A
f = 50 Hz
180
A
I2t Value for Fusing
I2t
Value for 50 Hz half cycle sine wave, 1 cycle, ITSM = 180 A
160
A2 s
Peak Gate Current
IGM
f
≥ 50 Hz, duty cycle ≤ 10%
2
A
Peak Gate Power Dissipation
PGM
f
≥ 50 Hz, duty cycle ≤ 10%
5
W
Average Gate Power Dissipation
PGM(AV)
TJ < TJ(max)
0.5
W
Junction Temperature
TJ
–40 to 125
C
Storage Temperature
Tstg
–40 to 125
C
T1
T2
G
Terminal List Table
Number
Name
Function
1
T1
Main terminal, gate referenced
2
T2
Main terminal connect to signal side
3
G
Gate control
Pin-out Diagram
Thermal Characteristics May require derating at maximum conditions
Characteristic
Symbol
Test Conditions
Value
Units
Package Thermal Resistance
(Junction to Case)
RθJC
For AC
1.6
C/W
All performance characteristics given are typical values for circuit or
system baseline design only and are at the nominal operating voltage and
an ambient temperature, TA, of 25°C, unless otherwise stated.
123
Selection Guide
Part Number
VDRM
(V)
UL-Recognized
Component
Package
Packing
TMA164B(I)
400
Yes
3-pin fully molded SIP with
heatsink mount
30 pieces per tube
TMA164B-L
400
–
TMA166B(I)
600
Yes
TMA166B-L
600
–
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com