Basic Knowledge of Magnetic Pattern Recognition Sensors

Summary

• Characteristics
• Dimensions
• Features
• Applications

Characteristics

Electrical Characteristics

Item	Unit	Part number
		BS05P1PGAA	BS05T1HGNA	BS05N1HGAA BS05C1HGCA	BS05N1HFAA BS05C1HFAA	BS05N1NFAA	BS05W1KFAA BS05W1KFAB
Applied voltage	V	5.25	5
Total resistance	k ohm	0.5 to 6	1 to 6	0.5 to 4		0.6 to 6	1 to 15
Output voltage	mVrms	195 to 405	200 to 400	235 or more	400 or more	330 or more	300 to 800
Output bias voltage	V	(Vcc/2) ±20%	(Vcc/2) ±15%
Sensor noise	µVp-p	50 or less (based on measuring method specified by Murata)
Piezoelectric noise	mVp-p	0.2 or less (based on measuring method specified by Murata)	0.8 or less	0.2 or less (based on measuring method specified by Murata)
Operating temperature range	°C	-20 to 60
Induction noise immunity

Item	Unit	Part number
		BS05M1HFAL	BS05M1KGCA	BS05M1KFCA	BS05M1KFBB	BS05M1KFFA
Applied voltage	V	5
Total resistance	k ohm	0.5 to 6/ch	0.5 to 6/ch	1 to 6/ch	1 to 5/ch	0.6 to 3/ch
Output voltage	mVrms	150 or more	150 or more	300 or more	350 or more	100 or more
Output bias voltage	V	(Vcc/2) ±15%
Sensor noise	µVp-p	50 or less (based on measuring method specified by Murata)
Piezoelectric noise	mVp-p	0.2 or less (based on measuring method specified by Murata)
Operating temperature range	°C	-20 to 60	0 to 50
Induction noise immunity

Mechanical Characteristics

Item	Unit	Part number
		BS05P1PGAA	BS05T1HGNA	BS05N1HGAA BS05C1HGCA	BS05N1HFAA BS05C1HFAA	BS05N1NFAA	BS05W1KFAA BS05W1KFAB
Detecting width	mm	3				6	10
Element pitch	mm	0.75
Number of channels		1
Magnetic flux on sensing surface	T	0.125 or less	0.11 to 0.17	0.125 or less

Item	Unit	Part number
		BS05M1HFAL	BS05M1KGCA BS05M1KFCA	BS05M1KFBB	BS05M1KFFA
Detecting width	mm	3	10
Element pitch	mm	0.75
Number of channels		8	6	13	9
Channel pitch	mm	5	10		10.5
Magnetic flux on sensing surface	T	0.125 or less	0.13 or less	0.125 or less

Part number	BS05P type	BS05T type	BS05N type	BS05C type	BS05W1KFAA	BS05W1KFAB	BS05M type
Wear resistance

Murata has established a technology to ensure higher wear resistance. Product numbers other than those above are also available. For further information, contact Murata Manufacturing Co., Ltd.

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Dimensions

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Frame Ground (FG) Terminal

While a magnetic medium is passing over the sensor's detecting surface, the friction between the medium and the detecting surface will generate static electricity, which causes strong noise.
To prevent this problem, the case, cap, and cover are provided with a float terminal. The resistance between the case and the terminal is 1ohm or less.

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Features

• High output is provided.
• Non-contact detection is enabled for ferromagnetic patterns.
• Excellent wear resistance is provided.
• Compact and lightweight body
• Multiple channels are available.

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Applications

• Detection of bank note types/Differentiation between true and forged bank notes
• Reading of ferromagnetic threads
• Recognition of E13B code characters
• Detection of passage of ferromagnetic objects
• Reading of characters or marks printed with magnetic ink

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Basic Knowledge of Magnetic Pattern Recognition Sensors