Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UT138FF/FG
TRIAC
TRIAC

DESCRIPTION
Glass passivated triac in a full pack plastic envelope,
intended for use in applications requiring high bidirectional
transient and blocking voltage capability and high thermal
cycling performance. Typical applications include motor control,
industrial and domestic lighting, heating and static switching.

SYMBOL

ORDERING INFORMATION
Ordering Number
Lead Free
UT138FFL-x-TF3-R
UT138FGL-x-TF3-R
Note: Pin Assignment: G: Gate
Halogen Free
UT138FFG-x-TF3-R
UT138FGP-x-TF3-R
TO-220F
TO-220F
Pin Description
1
2
3
MT1 MT2
G
MT1 MT2
G
Packing
Tube
Tube
(1) T: Tube
UT138FFL- x -TF3-T
(1)Packing Type
(2) TF3: TO-220F
(2)Package Type
(3) 5: 500V, 6: 600V, 8: 800V
(3)Peak Voltage
(4) L: Lead Free, G: Halogen Free and Lead Free
(4)Green Package

Package
P: Halogen Free and Lead Free
MARKING
UT138FF
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Copyright © 2015 Unisonic Technologies Co., Ltd
UT138FG
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UT138FF/FG

TRIAC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
UT138FF/FG-5
UT138FF/FG-6
UT138FF/FG-8
Repetitive Peak Off-State Voltages
VDRM
RATINGS
500(Note2)
600(Note2)
800
UNIT
V
RMS On-state Current
IT(RMS)
12
A
Full sine wave, THS ≤92C
Non-Repetitive Peak. On-State Current
t =20 ms
90
ITSM
Full sine wave, TJ =125C prior to surge, with
A
t =16.7 ms
100
reapplied VDRM(MAX)
I2t For Fusing (t =10 ms)
I2 t
40
A2s
50
T2 + G+
Repetitive Rate of Rise of On-state Current
T2 + G50
after Triggering
A/µs
dIT /dt
T2 - G50
ITM=12 A, IG=0.2 A, dIG/dt=0.2A/µs
T2 - G+
10
Peak Gate Voltage
VGM
5
V
Peak Gate Current
IGM
2
A
Peak Gate Power
PGM
5
W
Average Gate Power (Over any 20ms period)
PG(AV)
0.5
W
Operating Junction Temperature
TJ
125
°C
Storage Temperature
TSTG
-40 ~ +150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Although not recommended, off-state voltages up to 800V may be applied without damage, but the triac
may switch to the on-state. The rate of rise of current should not exceed 15A/µs.

THERMAL RESISTANCES
PARAMETER
Thermal resistance Junction to Ambient
Thermal resistance Junction to mounting
base

In Free Air
Full cycle
Half cycle
SYMBOL
θJA
TYP
55
MAX
UNIT
°C/W
°C/W
°C/W
4.0
5.5
θJC
ISOLATION LIMITING VALUE & CHARACTERISTIC (THS =25C, unless otherwise specified)
PARAMETER
Repetitive peak voltage form all three terminals to external
heatsink (R.H.≤ 65%,clean and dustfree)
Capacitance from MT2 to external heatsink (f =1MHz)

MIN
SYMBOL
MIN
TYP
VISOL
CISOL
MAX
UNIT
1500
V
12
pF
STATIC CHARACTERISTICS (TJ=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
T2 + G+
T2 + GT2 - GT2 - G+
T2 + G+
T2 + GT2 - GT2 - G+
Gate Trigger Current
IGT
VD =12 V,IT =0.1A
Latching Current
IL
VD =12 V,IGT =0.1A
Holding Current
On-State Voltage
IH
VT
Gate Trigger Voltage
VGT
VD =12 V,IGT =0.1A
IT =15 A
VD=12V, IT =0.1A
VD=400V, IT=0.1A, TJ=125°C
VD=VDRM(MAX), TJ =125°C
Off-State Leakage Current
ID
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MAX
UT138FF UT138FG
5
25
50
8
25
50
10
25
50
22
70
100
7
40
60
20
60
90
8
40
60
10
60
90
6
30
60
1.4
1.65
0.7
1.5
0.4
0.1
0.5
MIN TYP
0.25
UNIT
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
mA
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
TRIAC
DYNAMIC CHARACTERISTICS (TJ=25°C, unless otherwise specified)
PARAMETER
Critical Rate of Rise of Off-State
Voltage
Critical Rate of Change of
Commutating Voltage
Gate Controlled Turn-On Time
SYMBOL
TEST CONDITIONS
VDM = 67% VDRM(MAX),TJ=125°C,
exponential waveform, gate
open circuit
VDM=400V, TJ=95°C,
dVCOM/dt IT(RMS)=12A, dICOM/dt=5.4A/ms,
gate open circuit
ITM =16A,VD= VDRM(MAX),
tGT
IG=0.1A, dIG/dt=5A/μs
dVD/dt
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
TYP MAX UNIT
UT138FF UT138FG
100
200
250
V/µs
20
V/µs
2
µs
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UT138FF/FG

TRIAC
TYPICAL CHARACTERISTICS
Maximum On-State Dissipation,
Ptot Vs RMS On-state Current, IT(RMS),
Whereα=Conduction Angle.
Ptot (W)
Tmb(max) °(C)
20
95
α=180
α
15
α
Maximum Permissible Non-Repetitive Peak Onstate Current ITSM, Vs Pulse Width tp, for
Sinusoidal Currents ,tp≤20ms.
ITSM (A)
1000
α=120
α=90 102.5
α=60
10
α=30 110
5
100
dIT/dt limit
117.5
0
0
5
10
IT(RMS) (A)
15
125
Maximum Permissible Repetitive RMS On-state
Current IT(RMS), Vs Surge Duration, For Sinusoidal
Currents, f=50Hz, TMP≤99°C
IT(RMS) (A)
25
ITSM
time
T
T2-G+ quadrant
TJ initial=25°Cmax
10
1ms 10ms 100ms
100us
10us
T(s)
1.6
Normalised Gate Trigger Voltage
VGT(TJ)/VGT(25°C), Vs Junction
VGT(TJ) Temperature, TJ
VGT(25°C)
1.4
20
1.2
15
1
10
0.8
5
0
0.01
IT
0.6
0.1
1
Surge Duration (S)
10
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0.4
-50
0
50
TJ (°C)
100
150
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
TRIAC
TYPICAL CHARACTERISTICS(Cont.)
Normalised Holding Current
IH(TJ)/IH(25°C), Vs Junction Temperature, TJ
IH(TJ)
IH(25°C)
3
40
30
2.5
2
20
1.5
1
Typical And Maximum
IT (A) On-state Characteristic
TJ=125°C
TJ=25°C
max
typ
VOUT=1.75V
RS=0.316Ohms
10
0.5
0
-50
0
50
TJ (°C)
100
150
UNISONIC TECHNOLOGIES CO., LTD
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0
0
0.5
1
1.5
VT (V)
2
2.5
3
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UT138FF/FG
TRIAC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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