Encoder module
P11159-201AS
Small package and high resolution encoder
module
The P11159-201AS is an optical encoder module that consists of a photo IC and red LED. The photo IC incorporates a 4-el-
ement photodiode and a 2-phase digital signal output circuit. When using 0.2 mm pitch slits, the P11159-201AS produces a
2-phase digital signal output matching the slit movement.
Features
High resolution: 0.05 mm (2-phase output)
Positioning pin for easy alignment
Small package
Suitable for lead-free flow soldering
Applications
Rotary encoder
Linear encoder
Absolute maximum ratings (Ta=25 °C)
Parameter
Input
(LED)
Forward current*1
Reverse voltage
Power dissipation
Supply voltage
Output Output voltage
(photo IC) Output current
Power dissipation*2
Operating temperature
Storage temperature
Soldering
Symbol
IF max.
VR max.
P
Vcc max.
Vo max.
Io max.
P
Topr
Tstg
Tsol
Value
25
5
100
-0.5 to +7
-0.5 to Vcc + 0.5
4
250
-40 to +85
-40 to +90
260 °C, 3 s Max., at least 1 mm away from case surface
Unit
mA
V
mW
V
V
mA
mW
°C
°C
-
*1: Forward current decreases at a rate of 0.5 mA/°C above Ta=55 °C
*2: Power dissipation decreases at a rate of 3.1 mW/°C above Ta=25 °C
Note: The P11159-201AS is not suitable for reflow soldering.
Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the
product within the absolute maximum ratings.
Electrical and optical characteristics (Ta=25 °C, Vcc=5 V, unless otherwise noted)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Input
(LED)
Forward voltage
Reverse current
Peak emission wavelength
VF IF=10 mA
IR VR=5 V
λp IF=10 mA
Operating supply voltage
Vcc
- 1.9 2.4
- - 10
- 650 -
3.0 - 7.0
Output
(photo IC)
Low level output voltage
High level output voltage
Supply current
Duty ratio*3
Transfer
characteristics
Phase difference*3
Rise time
Fall time
Maximum response frequency*3 *4
VOL
VOH
Icc
tAH/tAP
tBH/tBP
θAB
tr
tf
f max.
IOL=1 mA
VOA=VOB=L
IF=5 mA, f=10 kHz
IF=5 mA, f=10 kHz
IF=5 mA, CL=10 pF
IF=5 mA, CL=10 pF
IF=5 mA
- - 0.4
4.5 -
-
- 6.0 10
35 50 65
35 50 65
60 90 120
- 0.5 2
-
0.04
0.3
50 -
-
*3: Measured when recommended slits are used in specified position
Response frequency f is the reciprocal of the time required to move one pitch.
*4: Maximum frequency at which no error occurs in the output transition sequence (See operation timing diagram.)
Note: Connect a capacitor of 0.1 μF or more between Vcc and GND terminal.
Unit
V
μA
nm
V
V
V
mA
%
%
degree
μs
μs
kHz
www.hamamatsu.com
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