Transmissive Photosensors (Photo Interrupters)
CNA1312K
Photo Interrupter
Unit : mm
Slit width(0.4)
b side
a side
For contactless SW, object detection
With gate
a side
(1.5)
or b side
(1.8)
Overview
Optical
center
2.6
4.9±0.3
1.45 2.0±0.3 1.45
SEC. A-A'
Slit width
CNA1312K is an ultraminiature, highly reliable transmissive
photosensor in which a high efficiency GaAs infrared light emitting
diode chip and a high sensitivity Si phototransistor chip are integrated
in a double molded resin package.
(C0.5)
(0.2)
A
B
+0.2
2-0.5
2-0.2
–0.1
2-0.4
*2.0
A' B'
*3.9
Features
SEC. B-B'
Ultraminiature : 2.6 × 4.9 mm (height : 3.3 mm)
1
2
3
4
2
1
4
3
Highly precise position detection : 0.1 mm
Gap width : 2.0 mm
1: Anode 3: Collecter
2: Cathode 4: Emitter
Pin connection
(Note)
1. Tolerance unless otherwise specified is ±0.2
2. ( ) Dimension is reference
Absolute Maximum Ratings (Ta = 25˚C)
3. * is dimension at the root of leads
Parameter
Symbol Ratings Unit
Reverse voltage (DC)
Forward current (DC)
Power dissipation
Collector current
VR
6
V
mA
mW
mA
V
*1 Input power derating ratio is
1.0 mW/˚C at Ta ≥ 25˚C.
*2 Output power derating ratio is
Input (Light
IF
50
75
20
35
6
emitting diode)
*1
PD
IC
1.0 mW/˚C at Ta ≥ 25˚C.
*3 Soldering time is within 5 seconds.
Collector to emitter voltage VCEO
Output (Photo
transistor)
Emitter to collector voltage VECO
V
*2
Collector power dissipation PC
75
mW
Operating ambient temperature
Topr –25 to +85 ˚C
more than 1mm
Temperature Storage temperature
Soldering temperature
Tstg –40 to +100 ˚C
*3
Tsol
260
˚C
Soldering bath
Electrical Characteristics (Ta = 25˚C)
Parameter
Symbol
Conditions
min
typ
max Unit
Forward voltage (DC)
Reverse current (DC)
VF IF = 20mA
IR VR = 3V
1.2
1.4
10
V
Input
characteristics
µA
nA
µA
V
Output characteristics Collector cutoff current
ICEO VCE = 20V
100
400
0.4
Collector current
IC VCE = 5V, IF = 5mA
40
Transfer
characteristics
Collector to emitter saturation voltage VCE(sat) IF = 10mA, IC = 40µA
Response time
tr , tf* VCC = 5V, IC = 0.1mA, RL = 1000Ω
50
µs
* Switching time measurement circuit
Sig.IN
VCC
td : Delay time
(Input pulse)
tr : Rise time (Time required for the collector current to increase
from 10% to 90% of its final value)
90%
10%
Sig.OUT
(Output pulse)
td
tf : Fall time (Time required for the collector current to decrease
from 90% to 10% of its initial value)
50Ω
RL
tr
tf
1