Datasheet

UNISONIC TECHNOLOGIES CO., LTD
US112S/N
SCR
SCRS

DESCRIPTION
The UTC US112S/N is suitable to fit all modes of control found
in applications such as overvoltage crowbar protection, motor
control circuits in power tools and kitchen aids, in-rush current
limiting circuits, capacitive discharge ignition, voltage regulation
circuits.

SYMBOL

ORDERING INFORMATION
Ordering Number
Package
Lead Free
Halogen Free
US112SL-x-TA3-T
US112SG-x-TA3-T
TO-220
US112SL-x-TF3-T
US112SG-x-TF3-T
TO-220F
US112NL-x-TA3-T
US112NG-x-TA3-T
TO-220
US112NL-x-TF3-T
US112NG-x-TF3-T
TO-220F
Note: Pin Assignment: K: Cathode A: Anode G: Gate

1
K
K
K
K
Pin Assignment
2
3
A
G
A
G
A
G
A
G
Packing
Tube
Tube
Tube
Tube
MARKING INFORMATION
PACKAGE
MARKING
US112S
US112N
TO-220
TO-220F
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
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QW-R301-013.D
US112S/N

SCR
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
US112S/N-4
Repetitive Peak Off-State Voltages
US112S/N-6
US112S/N-8
RMS On-State Current (180°Conduction Angle) (TC = 110℃)
Average On-State Current (180°Conduction Angle) (TC = 110°C)
tP=8.3ms
Non Repetitive Surge Peak On-State Current
(TJ = 25℃)
tP=10ms
I²t Value For Fusing (tP = 10 ms ,TJ = 25℃)
RATING
400
600
800
12
8
146
140
98
VDRM
VRRM
IT(RMS)
IT(AV)
ITSM
UNIT
V
A
A
A
I²t
Critical Rate Of Rise Of On-State Current
dI/dt
50
(IG = 2 x IGT , tR ≤ 100 ns, TJ = 125°C)
Peak Gate Current (tP=20μs, F = 60 Hz, TJ =125°C)
IGM
4
Peak Reverse Gate Voltage
US112N
VRGM
5
Average Gate Power Dissipation (TJ= 125°C)
PG(AV)
1
Storage Temperature
TSTG
-40 ~ +150
Junction Temperature
TJ
+125
Note: 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.

A/µs
A
V
W
°C
°C
THERMAL DATA
PARAMETER
SYMBOL
θJA
Junction to Case
Junction to Ambient

A²S
TO-220
TO-220F
θJC
RATINGS
60
1.3
2.3
UNIT
K/W
K/W
ELECTRICAL CHARACTERISTICS (TJ=25℃unless otherwise specified)
US112S(SENSITIVE)
PARAMETER
Gate Trigger Current
Gate Trigger Voltage
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
IGT
VD = 12V, RL =140Ω
200 µA
VGT
VD = 12V, RL=140Ω
0.8
V
VD = VDRM, RL = 3.3kΩ,
0.1
V
Gate Non-Trigger Voltage
VGD
RGK = 1KΩ, TJ = 125℃
Reverse Gate Voltage
VRG
IRG = 10 µA
8
V
Holding Current
IH
IT = 50mA, RGK = 1kΩ
5
mA
Latching Current
IL
IG = 1mA , RGK = 1kΩ
6
mA
Circuit Rate of Change of Off-State Voltage
dV/dt
VD = 67% VDRM, RGK = 220Ω
5
V/µs
On-State Voltage
VTM
ITM =24A, tP = 380 µs
1.6
V
Threshold Voltage
VT0
TJ = 125℃
0.85 V
Dynamic Resistance
RD
TJ = 125℃
30 mΩ
5
µA
VDRM = VRRM, RGK=220Ω
IDRM
Off-State Leakage Current
IRRM
VDRM = VRRM, RGK=220Ω, TJ= 125℃
2
mA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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US112S/N

SCR
ELECTRICAL CHARACTERISTICS(Cont.)
US112N(SENSITIVE)
PARAMETER
Gate Trigger Current
Gate Trigger Voltage
Gate Non-Trigger Voltage
Holding Current
Latching Current
SYMBOL
IGT
VGT
VGD
IH
IL
Circuit Rate of Change of Off-State Voltage
dV/dt
On-State Voltage
Threshold Voltage
Dynamic Resistance
VTM
VT0
RD
IDRM
IRRM
Off-State Leakage Current
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
VD = 12 V, RL =33Ω
VD = 12 V, RL=33Ω
VD =VDRM, RL = 3.3kΩ, TJ=125°C
IT = 500mA Gate open
IG = 1.2 IGT
VD=67% VDRM Gate open,
TJ=125°C
ITM =24 A, tP = 380 µs
TJ = 125°C
TJ = 125°C
VDRM = VRRM
VDRM = VRRM, TJ = 125°C
MIN TYP MAX UNIT
2
15 mA
1.3
V
0.2
V
30 mA
60 mA
200
V/µs
1.6
0.85
30
5
2
V
V
mΩ
µA
mA
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US112S/N
SCR
Reverse Current, -IR (µA)
Reverse Current, -IR (µA)
TYPICAL CHARACTERISTICS

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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