— 38 —
1
1
1
1
TOP VIEW
SIDE VIEW
COUNT TERMINALS IN
ARROW DIRECTION
MARK
E
C
B
A
K
A
K
A
K
A
K
A
K
A
K
INFRARED EMITTING
A....ANODE
K....CATHODE
INTEGRATED CIRCUITS
TRANSISTORS
1
DIODES
PHOTO COUPLERS
B ... BASE
C ... COLLECTOR
E ... EMITTER
E C
B
E C
B
E
C
B
E
C
B
E C
B
E
C
B
E C
B
E
C
B
3
2
1
3 2
1
GND
(2)
IN
(1)
OUT
(3)
1
1
TOP VIEW
1
CHIP TRANSISTORS
B
C
E
TOP VIEW
B ... BASE
C ... COLLECTOR
E ... EMITTER
CHIP RESISTORS
TOP VIEW
123
12 x 10 = 12K ohm
3
IC, DIODE, AND TRANSISTOR PIN LAYOUTS
