H21L1, H21L2
H22L1, H22L2
ISO - LOGIC INVERTER
SCHMITT TRIGGER
INTERRUPTER SWITCH
Dimensions in mm
DESCRIPTION
H22L1
H22L2
5
4
E
The H21L_ and H22L_ series of transmissive
photointerrupters are single channel switches
1
consisting of a Gallium Arsenide infrared
2
emitting diode coupled to a high speed integrated
circuit detector. The output incorporates a
Schmitt trigger which provides hysteresis for
noise immunity and pulse shaping. The gap in
the plastic housing provides a means of
interrupting the signal with an opaque material,
9.0
switching the output from an 'ON' into an 'OFF'
8.0
state.
FEATURES
l
l
l
l
l
pin 3 V
CC
2
1
6.6
pin 4 V
O
pin 5 G
ND
3.3
3.0
2.8
11.1
10.5
OPTICAL
CENTRE
LINE
2.54
3
3.0
12.7
Built in Schmitt trigger circuit
Open collector output
High sensitivity
3mm gap between LED and detector
1mm aperture over LED and detector
0.45
0.40
7.62
APPLICATIONS
l
H21L1
H21L2
Floppy disk drives, Copiers, Printers,
Facsimilies, VCR's, Cassette tape
Recorders, Automatic vending machines
1
25.7
24.1
19.05
E
5
2
1
pin 3 V
CC
pin 4 V
O
Voltage Regulator
2
12.7
3.0
4
3
6.6
2
3 V
CC
9.0
8.0
pin 5 G
ND
3.3
3.0
2.8
11.1
10.5
OPTIC AL
CENTRE
LINE
2.54
4 Out
0.45
0.40
7.62
1
Amp
5 G
ND
ISOCOM COMPONENTS LTD
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Tel: (01429) 863609 Fax :(01429) 863581
3/10/97
ISOCOM INC
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Fax: (972) 422-4549
DB91085-AAS/A2
1
2
3
