Teccor
®
brand Thyristors
0.8 Amp Sensitive SCRs
EC103xx & SxSx Series
Description
Excellent unidirectional switches for phase control
applications such as heating and motor speed controls.
Sensitive gate SCRs are easily triggered with microAmps
of current as furnished by sense coils, proximity switches,
and microprocessors.
Features & Benefits
to 600 V
junctions
20 A
Main Features
Symbol
I
T(RMS)
V
DRM
/V
RRM
I
GT
Value
0.8
400 to 600
12 to 500
Unit
A
V
μA
Applications
Typical applications are capacitive discharge systems
for strobe lights and gas engine ignition. Also controls
for power tools, home/brown goods and white goods
appliances.
Schematic Symbol
A
K
G
Absolute Maximum Ratings — Sensitive SCRs
Symbol
I
T(RMS)
I
T(AV)
Parameter
RMS on-state current
Average on-state current
Test Conditions
T
C
= 75°C
T
C
= 75°C
single half cycle; f = 50Hz;
T
J
(initial) = 25°C
single half cycle; f = 60Hz;
T
J
(initial) = 25°C
t
p
= 8.3 ms
f = 60 Hz ; T
J
= 110°C
T
J
= 110°C
T
J
= 110°C
Value
0.8
0.51
16
A
20
1.6
50
1
0.1
-40 to 150
-40 to 110
A
2
s
A/μs
A
W
°C
°C
Unit
A
A
I
TSM
Peak non-repetitive surge current
I
2
t
di/dt
I
GM
P
G(AV)
T
stg
T
J
I
2
t Value for fusing
Critical rate of rise of on-state current
Peak gate current
Average gate power dissipation
Storage temperature range
Operating junction temperature range
EC103xx & SxSx Series
189
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
0.8 Amp Sensitive SCRs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
Value
Symbol
Test Conditions
SxS1
EC103X1
MAX.
MAX.
400V
600V
MIN.
MIN.
MAX.
MAX.
TYP
.
2
60
5
20
10
0.2
5
50
20
25
10
12
SxS2
EC103X2
50
0.8
30
15
0.25
8
45
30
40
20
SxS /
2N6565
EC103X
200
SxS3
EC103X3
500
Unit
I
GT
V
GT
dv/dt
V
GD
I
H
t
q
t
gt
V
D
= 6V; R
L
= 100
:
μA
V
V/μs
V
mA
μs
μs
V
D
= V
DRM
; R
GK
= 1kΩ
V
D
= V
DRM
; R
L
= 3.3 k:; T
J
= 110°C
I
T
= 20mA (initial), R
GK
= 1k:
(1)
I
G
= 2 x I
GT
; PW = 15μs; I
T
= 1.6A
(1) I
T
=1A; t
p
=50μs; dv/dt=5V/μs; di/dt=-5A/μs
Static Characteristics
Symbol
V
TM
V
DRM
= V
RRM
R
GK
= 1k:
Test Conditions
I
T
= 1.2A; t
p
= 380 μs
T
J
= 25°C
I
DRM
/ I
RRM
T
J
= 100°C
T
J
= 110°C
MAX.
MAX.
Value
1.7
1
50
100
μA
Unit
V
Thermal Resistances
Symbol
R
T(J-C)
R
T(J-A)
Junction to case (AC)
SxSy
Junction to ambient
EC103xy/2N6565
60*
160
°C/W
Parameter
EC103xy/2N6565
Value
75
°C/W
Unit
Notes: x = voltage, y = sensitivity
* = Mounted on 1 cm
2
copper (two-ounce) foil surface
EC103xx & SxSx Series
190
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
0.8 Amp Sensitive SCRs
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
4.0
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
Ratio of V
GT
/ V
GT
(T
J
= 25ºC)
Ratio of I
GT
/I
GT
(T
J
= 25°C)
3.0
1.5
2.0
1.0
1.0
0.5
0.0
-40
-15
10
35
60
85
110
0.0
-40
-15
10
35
60
85
110
Junction Temperature (T
J
) -- (°C)
Junction Temperature (T
J
) -- (°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
3.0
Figure 4: On-State Current vs. On-State
Voltage (Typical)
10
Instantaneous On-state Current (i
T
) – Amps
T
J
= 25°C
2.5
8
Ratio of I
H
/ I
H
(T
J
= 25°C)
2.0
6
1.5
4
1.0
0.5
2
0.0
-40
-15
10
35
60
85
110
0
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Junction Temperature (T
J
) -- (°C)
Instantaneous On-state Voltage (v
T
) – Volts
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
0.7
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
115
0.6
0.5
0.4
0.3
0.2
Maximum Allowable Case Temperature
(T
C
) - °C
Average On-State Power Dissipation
[P
D(AV)
] - (Watts)
105
95
85
75
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.1
0.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
65
RMS On-State Current [I
T(RMS)
] - Amps
RMS On-State Current [I
T(RMS)
] - Amps
EC103xx & SxSx Series
191
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
0.8 Amp Sensitive SCRs
Figure 7: Maximum Allowable Case Temperature
vs. Average On-State Current
115
Figure 8: Maximum Allowable Ambient Temperature
vs. RMS On-State Current
120
105
95
85
75
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
65
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Maximum Allowable Ambient Temperature
(T
A
) - °C
Maximum Allowable Case Temperature
(T
C
) - °C
100
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
80
60
40
20
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Average On-State Current [I
T(AVE)
] - Amps
RMS On-State Current [I
T(RMS)
] - Amps
Figure 9: Maximum Allowable Ambient Temperature
vs. Average On-State Current
Maximum Allowable Ambient Temperature
(T
A
) - °C
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Figure 10: Peak Capacitor Discharge Current
180
160
140
120
12 Hz
100
80
60
40
20
t
W
I
TRM
100
Peak Discharge Current (I
TM
) -Amps
1 Hz
80
60
60 Hz
40
20
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
1
10
100
Average On-State Current [I
T(AVE)
] - Amps
Pulse Current Duration (t
W
) - μs
Figure 11: Peak Repetitive Sinusoidal Pulse Current
180
Peak Discharge Current (I
TM
) - Amps
160
140
120
1 Hz
100
80
60
40
20
0
1
10
100
I
TM
12 Hz
60 Hz
t
W
Pulse Current Duration (t
W
) - μs
EC103xx & SxSx Series
192
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
0.8 Amp Sensitive SCRs
Figure 12: Surge Peak On-State Current vs. Number of Cycles
100.0
Peak Surge (Non-repetitive)
On-state Current (I
TSM
) – Amps
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
T(RMS)
]: Maximum Rated
Value at Specified Case Temperature
10.0
1.0
Notes:
1. Gate control may be lost during and immediately
following surge current interval.
2. Overload may not be repeated until junction
temperature has returned to steady-state
rated value.
0.1
1
10
100
1000
Surge Current Duration -- Full Cycles
Figure 13: Simple Test Circuit for Gate Trigger Voltage and Current
Reset
Normally-closed
Pushbutton
Note: V1 — 0 V to 10 V dc meter
V
GT
— 0 V to 1 V dc meter
I
G
— 0 mA to 1 mA dc milliammeter
R1 — 1 k potentiometer
100
+
6V
DC
–
D.U.T.
I
GT
I
G
1k
(1%)
IN4001
100
V
GT
R1
To measure gate trigger voltage and current, raise gate
voltage (V
GT
) until meter reading V1 drops from 6 V to 1 V.
Gate trigger voltage is the reading on V
GT
just prior to V1
dropping. Gate trigger current I
GT
Can be computed from
the relationship
V
GT
I
GT
= I
G
- ____ Amps
1000
where I
G
is reading (in amperes) on meter just prior to V1
dropping
Note: I
GT
may turn out to be a negative quantity (trigger
current flows out from gate lead). If negative current
occurs, I
GT
value is not a valid reading. Remove 1 k resistor
and use I
G
as the more correct I
GT
value. This will occur on
12 μA gate products.
V1
EC103xx & SxSx Series
193
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
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