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
t3P)4DPNQMJBOU
t(MBTToQBTTJWBUFE
junctions
t7PMUBHFDBQBCJMJUZVQ
to 600 V
t4VSHFDBQBCJMJUZVQUP
20 A
Main Features
SymbolValueUnit
I
T(RMS)
V
DRM/VRRM
I
GT
1. 5A
400 to 600V
200A
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
AK
G
Absolute Maximum Ratings — Sensitive SCRs
SymbolParameterTest ConditionsValueUnit
I
T(RMS)
I
T(AV)
I
TSM
I2tI
di/dtCritical rate of rise of on-state current
I
GM
P
G(AV)
T
stg
T
J
RMS on-state currentTC = 40°C1.5A
Average on-state currentTC = 40°C0.95A
Peak non-repetitive surge current
2
t Value for fusingtp = 8.3 ms1.6A2s
Peak gate current
Average gate power dissipation
single half cycle; f = 50Hz;
T
(initial) = 25°C
J
single half cycle; f = 60Hz;
TJ (initial) = 25°C
f = 60 Hz ; T
T
= 110°C
J
T
= 110°C
J
= 110°C
J
16
20
50A/s
1A
0.1W
Storage temperature range-40 to 150°C
Operating junction temperature range-40 to 110°C
A
TCR22-x Series
219
Specifications are subject to change without notice.
Figure 13: Surge Peak On-State Current vs. Number of Cycles
100.0
) – Amps
10.0
TSM
1.0
Peak Surge (Non-repetitive)
On-state Current (I
0.1
1101001000
Surge Current Duration -- Full Cycles
Figure 14: Simple Test Circuit for Gate Trigger Voltage and Current
Note: V1 — 0 V to 10 V dc meter
To measure gate trigger voltage and current, raise gate
voltage (V
Gate trigger voltage is the reading on V
dropping. Gate trigger current I
the relationship
IGT = IG-
6V
+
DC
–
Reset
Normally-closed
Pushbutton
D.U.T.
V1
100
1 k
(1%)
I
GT
IN4001
I
G
V
100
GT
R1
where I
dropping
Note: I
current flows out from gate lead). If negative current
occurs, I
and use I
12 µA gate products.
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
Value at Specified Case Temperature
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.
V
— 0 V to 1 V dc meter
GT
I
— 0 mA to 1 mA dc milliammeter
G
R1 — 1 k potentiometer
) until meter reading V1 drops from 6 V to 1 V.
GT
V
GT
____
Amps
1000
is reading (in amperes) on meter just prior to V1
G
may turn out to be a negative quantity (trigger
GT
value is not a valid reading. Remove 1 k resistor
GT
as the more correct IGT value. This will occur on
G
]: Maximum Rated
T(RMS)
just prior to V1
GT
Can be computed from
GT
TCR22-x Series
223
Specifications are subject to change without notice.
UL recognized epoxy meeting flammability
classification 94V-0
Lead MaterialCopper Alloy
Design Considerations
Careful selection of the correct device for the application’s
operating parameters and environment will go a long way
toward extending the operating life of the Thyristor. Good
design practice should limit the maximum continuous
current through the main terminals to 75% of the device
rating. Other ways to ensure long life for a power discrete
semiconductor are proper heat sinking and selection of
voltage ratings for worst case conditions. Overheating,
overvoltage (including dv/dt), and surge currents are
the main killers of semiconductors. Correct mounting,
soldering, and forming of the leads also help protect
against component damage.
Test
AC Blocking
Temperature Cycling
Temperature/
Humidity
High Temp Storage
Low-Temp Storage1008 hours; -40°C
Thermal Shock
Autoclave
Resistance to
Solder Heat
SolderabilityANSI/J-STD-002, category 3, Test A
Lead BendMIL-STD-750, M-2036 Cond E
Specifications and Conditions
MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @ 110°C for 1008 hours
MIL-STD-750, M-1051,
100 cycles; -40°C to +150°C; 15-min
dwell-time
All leads insulated from case. Case is electrically nonconductive.
K0.0880.0962.232.44
L0.0130.0190.330.48
M0.0130.0170.330.43
Product Selector
Part Number
400V600V800V1000V
TCR22-6X200µASensitive SCRTO-92
TCR22-8X200µASensitive SCRTO-92
Note: x = Voltage
Voltage
Gate SensitivityType Package
Packing Options
Part NumberMarkingWeightPacking ModeBase Quantity
TCR22-xTCR22-x0.19 gBulk2000
TCR22-xRPTCR22-x0.19 gReel Pack2000
TCR22-xAPTCR22-x0.19 gAmmo Pack2000
Note: x = Voltage
Part Numbering SystemPart Marking System
75
LEAD FORM DIMENSIONS
xx: Lead Form Option
VOLTAGE RATING
6: 400V
8: 600V
225
Line1 = Littelfuse Part Number
Line2 = continuation…Littelfuse Part Number
Y = Last Digit of Calendar Year
M = Letter Month Code (A-L for Jan-Dec)
L = Location Code
DD = Calendar Date
DEVICE TYPE
TCR: SCR
CURRENT RATING
22: 1.5A
TCR22-x Series
TCR 228
Specifications are subject to change without notice.