5/13/02
PACKAGE DIMENSIONS
Page 1 of 3
2002 Fairchild Semiconductor Corporation
PHOTODARLINGTON OPTICAL
INTERRUPTER SWITCH
QCK3 QCK4
SCHEMATIC
DESCRIPTION
The QCK3/QCK4 is a slotted opticalswitch designed for surface mount applications where extreme temperatures are experienced
during solder reflow. The switch consists of a GaAs LED and a silicon photodarlington facing each other across a.157" (4.0 mm)
gap. The leads are formed to sit flush on a PCB during solder reflow.
FEATURES
Unique single piece housing designed to reduce cost.
High temperature housing material to withstand extreme temperature.
Shipped in plastic tubes for protection of leads and to feed automatic placement equipment.
Sensor package is infrared transparent and tinted to attenuate visible light.
L
C
0.365
0.020
(4X)
0.280
0.0283
0.060
0.020
(4X)
0.085
0.370
0.020
0.157
0.185
0.527
0.100
0.005
0.015
0.1215
0.020SQ
0.400
0.020
(4X)
(2X)
45.0
2
0.22
00
L
C
PIN 1
IDENTIFICATION
0.295
0.005
(4X)
C
L
L
C
PIN 1 CATHODE
PIN 2 ANODE
PIN 3 EMITTER
PIN 4 COLLECTOR
3
4
1
OPTICAL CL
C
L
L
OPTICAL C
OPTICAL CL
C
L
NOTES:
1. Dimensions for all drawings are in inches.
2. Tolerance of
.010 on all non-nominal dimensions
unless otherwise specified.
3. All leads are coplanar within .006".
4. Housing material is electrically conductive.
4
3
1
2
5/13/02
Page 2 of 3
2002 Fairchild Semiconductor Corporation
PHOTODARLINGTON OPTICAL
INTERRUPTER SWITCH
QCK3 QCK4
NOTE:
1. Derate power dissipation linearly 1.33 mW/C above 25C.
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25C unless otherwise specified)
Parameter Symbol
Rating
Units
Operating Temperature
T
OPR
-55 to +100
C
Storage Temperature
T
STG
-40 to +85
C
Soldering Temperature (Flow)
T
SOL-F
Preheating Stage for 60 sec
183
C
Reflow Stage for 5 sec
230
C
Rate of Temperature Rise
3 to 10
C/S
EMITTER
Continuous Forward Current
I
F
50 mA
Reverse Voltage
V
R
6 V
Power Dissipation
(1)
P
D
100 mW
SENSOR
Collector-Emitter Voltage
V
CEO
30 V
Emitter-Collector Voltage
V
ECO
6 V
Collector Current
I
C
40 mA
Power Dissipation
(1)
P
D
150 mW
PARAMETER
DEVICES
TEST CONDITIONS
SYMBOL
MIN
TYP
MAX
UNITS
EMITTER
Forward Voltage
I
F
= 20 mA
V
F
--
--
1.4 V
Reverse Current
V
R
= 2 V
I
R
--
--
100 A
SENSOR
Collector-Emitter Breakdown
I
C
= 1 mA, E
e
= 0
BV
CEO
30
--
--
V
Collector-Emitter Leakage
V
CE
= 5.25 V, E
e
= 0
I
CEO
--
--
30 A
COUPLED
On-State Collector Current
QCK3
I
F
= 5.0 mA, V
CE
= 5 V
I
C(ON)
1.0
--
--
mA
QCK4 3.0
15.0
Saturation Voltage
I
F
= 5 mA, I
C
= 5.0 mA
V
CE (SAT)
--
--
1.0 V
5/13/02
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO
ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME
ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN;
NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
Page 3 of 3
2002 Fairchild Semiconductor Corporation
PHOTODARLINGTON OPTICAL
INTERRUPTER SWITCH
QCK3 QCK4
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