UTC US112S/N
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.
SCR
1
TO-220
1: CATHODE 2: ANODE 3: GATE
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Repetitive peak off-state voltages US112S/N-4 US112S/N-6 US112S/N-8 RMS on-state current (180° conduction angle) (Tc = 105°C) Average on-state current (180° conduction angle) (Tc = 105°C) Non repetitive surge peak on-state current (Tj = 25°C) tp=8.3ms tp=10ms I²t Value for fusing (tp = 10 ms, Tj = 25°C) Critical rate of rise of on-state current (IG = 2 x IGT , tr ≤ 100 n s, F = 60 Hz , Tj = 125°C,) Peak gate current (tp=20µs, Tj = 125°C) Maximum peak reverse gate voltage Average gate power dissipation (Tj = 125°C) Storage junction temperature range Operating junction temperature range VDRM VRRM IT(RMS) IT(AV) ITSM I²t dI/dt IGM VRGM PG(AV) Tstg Tj 400 600 800 12 8 146 140 98 50 4 5 1 -40 ~ +150 -40 ~ +125 V A A A A²S A/µs A V W °C °C
SYMBOL
RATING US112S US112N
UNIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R301-013,B
UTC US112S/N
UTC US112S(SENSITIVE) ELECTRICAL CHARACTERISTICS
(Tj=25℃unless otherwise specified)
SCR
TEST CONDITIONS
VD = 12 V, RL =140Ω VD = 12 V, RL=140Ω
PARAMETER
Gate trigger Current Gate trigger Voltage Gate non-trigger voltage Reverse gate voltage Holding Current Latching Current Circuit Rate Of Change Of off-state Voltage On-state voltage
SYMBOL
IGT VGT VGD VRG IH IL dV/dt VTM Vt0 Rd IDRM IRRM
MIN
MAX. 200 0.8
UNIT
µA
V V
VD = VDRM, RL = 3.3 kΩ, RGK = 1kΩ
Tj = 125°C IRG = 10 µA IT = 50 mA, RGK = 1 kΩ IG = 1 mA ,RGK = 1 kΩ
0.1 8 5 6 5 1.6 0.85 30 5 2
V mA mA V/µs V V mΩ µA mA
VD = 67 % VDRM ,RGK = 220 Ω
Tj = 125°C
ITM = 24A, tp = 380 µs, Tj = 25°C
Tj = 125°C Tj = 125°C
Threshold Voltage Dynamic Resistance
Off-state Leakage Current
VDRM = VRRM, RGK = 220 Ω
Tj = 25°C Tj = 125°C
UTC US112N(STANDARD) ELECTRICAL CHARACTERISTICS
(Tj=25℃unless otherwise specified)
PARAMETER
Gate trigger Current Gate trigger Voltage Gate non-trigger voltage Holding Current Latching Current Circuit Rate Of Change Of off-state Voltage On-state voltage
SYMBOL
IGT VGT VGD IH IL dV/dt VTM Vt0 Rd IDRM IRRM
TEST CONDITIONS
VD = 12 V, RL =33Ω VD = 12 V, RL=33Ω
MIN
2
MAX. 15 1.3
UNIT
mA
V V
VD = VDRM, RL = 3.3 kΩ ,Tj = 125°C
IT = 500 mA, Gate open IG = 1.2 IGT
0.2 30 60 200 1.6 0.85 30 5 2
mA mA V/µs V V mΩ µA mA
VD = 67 % VDRM , Gate open, Tj = 125°C ITM = 24A, tp = 380 µs, Tj = 25°C
Tj = 125°C Tj = 125°C
Threshold Voltage Dynamic Resistance
Off-state Leakage Current
VDRM = VRRM,
Tj = 25°C Tj = 125°C
THERMAL RESISTANCES
PARAMETER
Junction to case (DC) Junction to ambient
SYMBOL Rth(j-c) Rth(j-a)
VALUE
1.3 60
UNIT
KW K/W
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R301-013,B
UTC US112S/N
Figure.1:Maximum average power dissipation vs average on-state current.
14 12 10
SCR
Figure.2:Average and D.C. on-state current vs case temperature DC
12 11 10 9 8 7 6 5 4 3 2 1 0
P(W)
IT(av)(A)
α=180°
α=180°
8 6 360° 4 2
IT(av)(A)
0 1 2 3 4 5 6
α
7 8 9
Tcase(℃)
0 0 25 50 75 100 12 5
Fig.3-1:Relative variation of thermal impedance junction to case vs pulse duration. K= 1.00
Fig.3-2:Relative variation of thermal impedance junction to ambient vs pulseduration (recommended pad layout,FR4 PC board) K=
1.0
0.5 0.10
0.2 0.1 1E-3 tp(s) 1E-2 1E-1 1E+0 0.01 1E-2 tp(s) 1E-1 1E+0 1E+1 1E+2 5E+2
Figure.4-1:Relative variation of gate trigger current,holding current and latching vs junction temperature (US112S)
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -40 -20 0 20 IGT,IH,IL(TJ)/IGT,IH,IL (TJ=25℃)
Figure.4-2: Relative variation of gate trigger current,holding current and latching current vs junction temperature (US112N).
IGT,IH,IL(TJ)/IGT,IH,IL (TJ=25℃) 2.4 2.2
IGT IH&IL Rgk=1kΩ
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 60 80 100 120 140 0.0 -40 -20
IGT
IH&IL
Tj(℃)
40
Tj(℃)
0 20 40 60 80 100 120 140
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R301-013,B
UTC US112S/N
Figure.5:Relative variation of holding current vs gate-cathode resistance(typical values) (US112S) Ta=25℃ 10.0
SCR
Fig.6: Relative variation of dV/dt immunity vs gatecathode resistance(typical values) (US112S) dV/dt(Rgk)/dV/dt(Rgk=220Ω) Tj=125℃ VD=0.67* VDRM
IH(Rgk)/IH(Rgk=1kΩ) 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0
1.0
Rgk(kΩ) 1E-1 1E+0 1E+1 0.1 0.0 0.2
Rgk(Ω) 0.4 0.6 0.8 1.0 1.2
1E-2
Fig.7: Relative variation of dV/dt immunity vs gatecathode capacitance(typical values) (US112S) 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 25 50 Cgk(nF) 75 100 125 150 1.0 dV/dt(Cgk)/dV/dt(Rgk=220Ω) VD=0.67* VDRM Tj=125℃ Rgk=220Ω 10.0
Fig.8: Surge peak on-state current vs number of cycles dV/dt(Rgk)/dV/dt(Rgk=220Ω) Tj=125℃ VD=0.67* VDRM
Rgk(Ω) 0.1 0.0
0.2
0.4
0.6
0.8
1.0
1.2
Fig.9:Non-repetitive surge peak on-state current for a sinusoidal pulse with width tp