K0900E70 Datasheet, PDF (64/224 Pages) Teccor Electronics – Thyristor Product Catalog

Sensitive SCRs
Data Sheets
12
CURRENT WAVEFORM: Half Sine Wave
LOAD: Resistive or Inductive
10 _{CONDUCTION ANGLE: 180˚}
8
6
4
6 A to 10 A
TO-220, TO-202,
2
TO-251, and TO-252
0
0
2
4
6
8
10
RMS On-state Current [I_T(RMS)] – Amps
Figure E5.17 Power Dissipation (Typical) versus RMS On-state Current
9.0
8.0
See General Notes for specific device
7.0
operating temperature range.
6.0
5.0
4.0
3.0
2.0
1.0
0
-65
-40
-15
+25
+65
Case Temperature (TC) – ˚C
+110 +125
Figure E5.18 Normalized DC Latching Current versus Case Temperature
Reset
Normally-closed
Pushbutton
+
6 V_DC
–
100
D.U.T.
I_GT
IN4001
I_G
R1
V1
1k
(1%)
100
V_GT
Figure E5.19 Simple Test Circuit for Gate Trigger Voltage and
Current Measurement
Note: V1 — 0 V to 10 V dc meter
V_GT — 0 V to 1 V dc meter
IG — 0 mA to 1 mA dc milliammeter
R1 — 1 k potentiometer
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 trig-
ger current I_GT can be computed from the relationship
IGT
=
IG –
--V----^G----^T--
1000
Amps
where I_G is reading (in amperes) on meter just prior to V1 drop-
ping.
Note: I_GT may turn out to be a negative quantity (trigger current
flows out from gate lead).
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©2002 Teccor Electronics
Thyristor Product Catalog