PHOTOINTERRUPTERS
11-21
Slotted Photointerrupters
LTH-860/LTH-870
Features
Non-contact switching.
Fast switching speed.
For direct PC board or dual-in-line socket mounting.
Choice of mounting configuraton.
Application
FAX machine
Scanner
Copy machine
Disk driver
Description
The LTH-860/LTH-870 series provide the design engineer with the flexibility of a custom device from a standard
product line. The user can specify (1) electrical output parameters, (2) mounting tab configuration, (3) choice of
lead spacing, (4) discret shell material and (5) aperture width.
Package Dimensions
Package Configuration T Package Configuration P
Package Configuration L
11-22
Package Configuration N
Notes:
1.All dimensions are in inches (millmeters).
2.Dimension controlled at housing surface only.
3.Housing is soluble in chlorinated hydrocarbons and ketones.
4.LTH-860, LTH-861, LTH-862, LTH-870, LTH-871, LTH-872.
5.LTH-865, LTH-866, LTH-867, LTH-875, LTH-876, LTH-877.
6.Molded number to identify aperature size. See part number guide.
7.Dimensions of aperature opening dependent on housing material. See part number guide.
8.Housing shown are opaque polysulfone.
Part Numbering Guide
LTH - 8 X X - X X X
Basic Part Number
Housing Material
6=Polysulfone,IR Transmissive
7=Polysulfone,Opaque
Mechanical and Electrical Spec.
0=Electrical Parameter A
Lead Spacing :.320 in.(8.13mm)
1=Electrical Parameter B
Lead Spacing :.320 in.(8.13mm)
2=Electrical Parameter C
Lead Spacing :.320 in.(8.13mm)
5=Electrical Parameter A
Lead Spacing :.220 in.(5.59mm)
6=Electrical Parameter B
Lead Spacing :.220 in.(5.59mm)
7=Electrical Parameter C
Lead Spacing :.220 in.(5.59mm)
Aperture Width in front of Sensor
(5) 5=.050 in.(1.27mm)
*1=.010 in.(.25mm)
Aperture Lengths are 0.06 in.(1.52mm)
*Available with Parameter A only
Aperture Width in front of IRED (5)
5=.050 in.(1.27mm)
Mounting Configurations
T=Both Mounting Tabs.
P=Single Mounting Tabs,
Sensor Side
L=Single Mounting Tabs,
Emitter Side
N=No Mounting Tabs.
PHOTOINTERRUPTERS
11-23
Absolute Maximum Ratings at Ta=25
Parameter
Input LED
Output
phototransistor
Operating Temperature Range
Storage Temperature Range
Lead Soldering Temperature
[1.6mm(.063 in.)from body]
Continuous Forward Current
Reverse Voltage
Peak Forward Current
(Pulse Wide=10 S,300PPS)
Power Dissipation
Collector Current
Power Dissipation
Collector-emitter Voltage
Emitter-collector Voltage
Symbol
PD
IC
PC
VCEO
VECO
Topr
Tstg
IF
VR
Ts
Maximum Rating
ICP
60
5
1
75
20
100
30
5
-25 to + 85
-40 to + 100
260 for 5 Seconds
Unit
mA
V
A
mW
mA
mW
V
V
Parameter
Input LED
Forward Voltage
Reverse Current
Output phototransistor
Collector Dark Current
Coupler
Collector-Emitter Saturation Voltage
On State Collector Current
Response Time
Symbol Min. Typ.
VF
IR
ICEO
VCE(sat)
tr
tf
0.5
1.0
1.8
1.2
3
4
Max.
1.6
100
100
V
A
nA
Unit
V
mA
S
Test Condition
IF=20mA
VR=5V
VCE=10V
IC=0.25mA,IF=20mA
IC=0.5mA,IF=20mA
IC=0.9mA,IF=20mA
VCE=5V,IF=20mA
VCE=5V,IC=2mA
RL=100
IC(ON)
Rise Time
Fall Time
Part
No.
0.4
15
20
Electrical Optical Characteristics at Ta=25
Parameter A
Parameter B
Parameter C
Parameter A
Parameter B
Parameter C
11-24
Typical Electrical/Optical Characteristic Curves
(25 Ambient Temperature Unless Otherwise Noted)
PHOTOINTERRUPTERS
11-25
Typical Electrical/Optical Characteristic Curves
(25 Ambient Temperature Unless Otherwise Noted)
