S2006FS221V Teccor Electronics, Inc., S2006FS221V Datasheet - Page 157

• Manufacturer Part Number: S2006FS221V
• Description: Thyristor Product Catalog
• Manufacturer: Teccor Electronics, Inc.

Application Notes
SCRs
SCRs are half-wave unidirectional rectifiers turned on when cur-
rent is supplied to the gate terminal. If the current supplied to the
gate is to be in the range of 12 µA and 500 µA, then a sensitive
SCR is required; if the gate current is between 1 mA and 50 mA,
then a non-sensitive SCR is required.
To connect the rectifier:
1. Connect Anode to Collector Terminal (C).
2. Connect Cathode to Emitter Terminal (E).
Note: When sensitive SCRs are being tested, a 1 k
must be connected between the gate and the cathode, except
when testing I
To begin testing, perform the following procedures.
Procedure 1: V
To measure the V
1. Set Variable Collector Supply Voltage Range to appropri-
2. Set Horizontal knob to sufficient scale to allow viewing of
3. Set Mode to Leakage.
4. Set Polarity to (+).
5. Set Power Dissipation to 0.5 W. (0.4 W on 370)
6. Set Terminal Selector to Emitter Grounded-Open Base.
7. Set Vertical knob to approximately ten times the maximum
Note: The CRT screen readout should show 1% of the maximum
leakage current if the vertical scale is divided by 1,000 when
leakage current mode is used.
©2002 Teccor Electronics
Thyristor Product Catalog
ate Max Peak Volts for device under test. (Value selected
should be equal to or greater than the device’s V
trace at the required voltage level. (The 100 V/DIV scale
should be used for testing devices having a V
600 V or greater; the 50 V/DIV scale for testing parts rated
from 300 V to 500 V, and so on.)
leakage current (I
sensitive SCRs, set to 50 µA.)
Figure AN1006.4
V FM
GT
.
DRM
I T
DRM
, V
, V
V
DRM
FM
RRM
RRM
, I
= 1 V at I
, I
RRM
, I
DRM
DRM
) specified for the device. (For
, I
, and I
PK
RRM
= 20 A
RRM
parameter:
DRM
PER
PER
PER
DIV
DIV
PER
O
DIV
9m
DIV
V
E
R
T
H
R
Z
S
T
E
P
()k
I
DRM
resistor
value of
2
500
mV
rating.)
A
AN1006 - 5
Procedure 2: V
To measure the V
1. Set Left-Right Terminal Jack Selector to correspond with
2. Set Variable Collector Supply Voltage to the rated V
WARNING: Do NOT exceed V
or Quadracs. These devices can be damaged.
Procedure 3: V
To measure the V
1. Set Polarity to (–).
2. Repeat Steps 1 and 2 (V
.
Procedure 4: V
To measure the V
1. Set Terminal Selector to Step Generator-Emitter Grounded.
2. Set Polarity to (+).
3. Set Step/Offset Amplitude to twice the maximum I
4. Set Max Peak Volts to 15 V. (16 V on 370)
5. Set Offset by depressing 0 (zero).
location of test fixture.
the device and observe the dot on CRT. Read across hori-
zontally from the dot to the vertical current scale. This mea-
sured value is the leakage current. (Figure AN1006.5)
value for V
of the device (to ensure the device turns on). For sensitive
SCRs, set to 2 mA.
Figure AN1006.5
Figure AN1006.6
DRM
I RRM
V DRM
DRM
RRM
TM
DRM
RRM
TM
. (Figure AN1006.6)
, I
, I
parameter:
I
I
and I
and I
DRM
RRM
DRM
RRM
= 350 nA at V
= 340 nA at V
DRM
RRM
DRM
V RRM
parameter:
parameter:
DRM
, I
I DRM
DRM
/V
RRM
) except substitute V
DRM
RRM
rating of SCRs, triacs,
= 600 V
= 600 V
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PER
PER
PER
PER
PER
PER
DIV
DIV
PER
DIV
DIV
PER
R
H
O
R
DIV
DIV
DIV
DIV
V
E
T
Z
S
T
E
P
()k
9m
V
E
R
T
H
O
R
Z
S
T
E
P
()k
9m
I
I
100
100
100
100
nA
nA
V
GT
V
AN1006
RRM
rating
DRM
of