Mini-G Series
Ultra Compact for built-in Use Embedded Amplifier Photo Sensors

Ultra-compact size used for built-in use for over 25 years
Various types such as head-on, wide diffuse reflective, high power or convergent reflective
M3 threaded screw can be used for all models
Water resistance complying with IP67
Stability output is included standard
- High-power light transmitting business cards: GT1SN, GT1N
- Long detecting distance of 10 m: GT3RSN
- High-performance detection at a short distance: GS5SN, GS5N
- Less affected by background: limited reflection type
- Easy light axis alignment: red LED type

Standard・Official Approval

Lineup
Dimension
Circuit
Applications
Option

Mini-G Series Lineups

Model	Detection method	Detecting distance min (mm)	Detecting distance (mm)	Control output	Operation mode	Light source	Protective structure	Connection
GT1SN	Through beam		1000.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GT1SPN	Through beam		1000.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GT1N	Through beam		1000.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GT1PN	Through beam		1000.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GT3N	Through beam		7000.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GT3PN	Through beam		7000.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GT3RSN	Through beam		10000.00	NPN	Dark on Light on	Red LED	IP67	Attached cable
GT3RSPN	Through beam		10000.00	PNP	Dark on Light on	Red LED	IP67	Attached cable
GT7SN	Through beam		7000.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GT7SPN	Through beam		7000.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GSM2RSN	Retroreflective	10.00	2000.00	NPN	Dark on Light on	Red LED	IP67	Attached cable
GSM2RSPN	Retroreflective	10.00	2000.00	PNP	Dark on Light on	Red LED	IP67	Attached cable
GS5SN	Diffuse reflective		70.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GS5SPN	Diffuse reflective		70.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GS5N	Diffuse reflective		70.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GS5PN	Diffuse reflective		70.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GS20RSN	Diffuse reflective		400.00	NPN	Dark on Light on	Red LED	IP67	Attached cable
GS20RSPN	Diffuse reflective		400.00	PNP	Dark on Light on	Red LED	IP67	Attached cable
GS20RN	Diffuse reflective		300.00	NPN	Dark on Light on	Red LED	IP67	Attached cable
GS20RPN	Diffuse reflective		300.00	PNP	Dark on Light on	Red LED	IP67	Attached cable
GS20SN	Diffuse reflective		300.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GS20SPN	Diffuse reflective		300.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GS20N	Diffuse reflective		200.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GS20PN	Diffuse reflective		200.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GSZ3SN	Convergent reflective	1.00	40.00	NPN	Dark on Light on	Infrared LED	IP67	Attached cable
GSZ3SPN	Convergent reflective	1.00	40.00	PNP	Dark on Light on	Infrared LED	IP67	Attached cable
GSZ3RSN	Convergent reflective	3.00	30.00	NPN	Dark on Light on	Red LED	IP67	Attached cable
GSZ3RSPN	Convergent reflective	3.00	30.00	PNP	Dark on Light on	Red LED	IP67	Attached cable

Dimension

Side-on type

Figures above show receivers. Transmitters have different panels.

Head-on type

Figures above show receivers. Transmitters have different panels.

Circuit

NPN output

PNP output

The transmitter is provided with power supply lines (brown: 12 - 24 VDC; blue: 0 V) only.
The output transistor turns off when load short circuit or overload occurs. Check the load and turn the power back on.

Textile

Broken thread detection

Loss of reflection of light caused by fluctuation or presence of detected thread with a wide-view sensor, therefore, assumes broken thread.

Embedded amplifier photo sensor GS5N

Automatic assembly

Detection of exhausted parts in parts feeder

Parts assumed to have run out when a certain level of light continuously detected for a certain period of time by retroreflective sensor.

Option

Pinhole plate

Pinhole plateGP1

Description	Pinhole plate
Pinhole diameter	φ1mm
Detecting distance with plate/filter attached	GT3RSN : 400mm GT7SN : 300mm
Materials	SUS

Pinhole plateGP2

Description	Pinhole plate
Pinhole diameter	φ2mm
Detecting distance with plate/filter attached	GT3RSN : 1m GT7SN : 1m
Materials	SUS

Pinhole plateGP3

Description	Pinhole plate
Pinhole diameter	φ3mm
Detecting distance with plate/filter attached	GT3RSN : 3m GT7SN : 2.5m
Materials	SUS

Pinhole plateGP5-1

Description	Pinhole plate
Pinhole diameter	5X1mm
Detecting distance with plate/filter attached	GT3RSN : 2m GT7SN : 1.7m
Materials	SUS

Protective cover

Protective coverGN-PCB1

Materials	SUS
Accessories	Screw : 2, Flat nut : 1
Materials	SUS
Use	For cable type

Protective coverGN-PCB2

Materials	SUS
Accessories	Screw : 2, Flat nut : 1
Materials	SUS
Use	For cable type

Reflector

ReflectorK-71

Effective reflecting surface	Approx. 30X18mm
Protective structure	IP67
Mounting	sedured with M3 screws (alternatively adhesive may be used)
Materials	Mirror : acrylic, Base : heat resistant ABS
Accessories	Screw : 2, Nut : 2
Dimensions	43X23mm
Detectjing object	Opaque object of dia. 40mm
Detecting distance	0.1 - 2m
Detecting distance	0.1 - 3m

ReflectorK-7

Dimensions	60X40mm
Application model	Applicable to polarized retroreflective type
Effective reflecting surface	Approx. 56X36mm
Protective structure	IP67
Mounting	sedured with M3 screws
Materials	Mirror : acrylic, Base : heat resistant ABS
Dimensions	60X40mm
Detectjing object	Opaque object of dia. 75mm
Detecting distance	0.01 to 3m

ReflectorS-25

Effective reflecting surface	φ18.5X25 per sheet
Mounting	Pasted, adhesive on back side
Detecting distance	50 - 600mm

Mini-G Series Ultra Compact for built-in Use Embedded Amplifier Photo Sensors