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High voltage capable LEM HMSR 6-SMS integrated current sensor with strong immunity to external magnetic fields

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High voltage capable LEM HMSR 6-SMS integrated current sensor with strong immunity to external magnetic fields

working temperature : -40℃~+125℃

Current Range : ±15A

Voltage - Supply : 5V

Band Width : 300kHz

Current Terminal Resistance : 0.76mΩ

Sensitivity : 133.33mV/A

Bidirectional Current Detection : Support

Description : ±15A 133.33mV/A SMD,10.3x9.3mm Current Sensors RoHS

Mfr. Part # : HMSR 6-SMS

Model Number : HMSR 6-SMS

Package : SMD,10.3x9.3mm

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LEM HMSR-SMS Series Integrated Current Sensor

The LEM HMSR-SMS series is a new generation of highly insulated, open-loop integrated current sensors designed for measuring DC and AC currents in demanding switching power applications. These sensors offer a robust, compact, and accurate solution with reinforced insulation and user-configurable overcurrent detection. Their design provides high precision and strong immunity to external fields, making them suitable for high-voltage applications. The primary conductor is designed to withstand high surge currents, and the micro magnetic core ensures immunity to external fields, ideal for power electronics with high disturbance levels. The HMSR series offers a cost-effective, small, and low-profile solution with reinforced isolation, suitable for surface-mount PCB mounting.

Product Attributes

Brand: LEM
Product Family: HMSR-SMS series
Origin: Not specified
Material: Not specified (Case material V0 according to UL 94)
Color: Not specified
Certifications: IEC 61800-5-1: 2007, IEC 62109-1: 2010, IEC 60950-1: 2005, UL 1577: 2014, UL 62368-1, UL 1577, CSA Component Acceptance Service Notice N. 5 A

Technical Specifications

Parameter	Symbol	Unit	HMSR 6-SMS	Comment
Primary nominal current	IP N	A	6
Primary current, measuring range	IP M	A	15 to 15	With UC 4.6 V
Internal reference voltage @ IP = 0 A	UI ref	V	2.48 - 2.5 - 2.52
Output voltage range @ IP M	Uout Uref	V	2 to 2
DC supply voltage	UC	V	4.5 - 5 - 5.5
DC current consumption	IC	mA	20 - 26
Nominal sensitivity	SN	mV/A	133.33	800 mV @ IP N
Sensitivity error	S	%	0.75 to 0.75	Factory adjustment
Sum of sensitivity and linearity error @ TA = 25 C	S L 25	% of IP N	1.5 to 1.5
Electrical offset voltage referred to primary	UO E	mV	5 to 5	Uout UI ref @ UI ref = 2.5 V
Electrical offset current referred to primary	IO E	mA	37.5 to 37.5
Temperature coefficient of S	TCS	ppm/K	220 to 220	40 C ... 125 C
Temperature coefficient of UI ref	TCUI ref	ppm/K	150 to 150	40 C ... 125 C
Temperature coefficient of UO E	TCUO E	mV/K	0.1 to 0.1	40 C ... 125 C
Ambient operating temperature	TA	C	40 to 125
Ambient storage temperature	TA st	C	55 to 165
Resistance of the primary @ TA = 25 C	RP	m	0.76
Thermal resistance junction to board (case)	Rth JB	K/W	18	1)
Thermal resistance junction to ambient	Rth JA	K/W	19	1)
Mass	m	g	1.4
RMS voltage for AC insulation test, 50 Hz, 1 min	Ud	kV	4.95	According to IEC 60950-1
Impulse withstand voltage 1.2/50 s	UNi	kV	8	According to IEC 62109-1, IEC 61800-5-1
Partial discharge RMS test voltage (qm < 5 pC)	Ut	V	1650	According to IEC 62109-1, IEC 61800-5-1
Clearance (pri. - sec.)	dCI	mm	8	Shortest distance through air
Creepage distance (pri. - sec.)	dCp	mm	8	Shortest path along device body
Comparative tracking index	CTI	grade	600
Application example System voltage RMS (Basic insulation)		V	1000	According to IEC 61800-5-1, IEC 62109-1, IEC 60950-1 CAT III, PD2
Application example System voltage RMS (Reinforced insulation)		V	600	According to IEC 61800-5-1, IEC 62109-1, IEC 60950-1 CAT III, PD2
Application example System voltage DC (Basic insulation)		V	1500	According to IEC 62109-1 CAT III, PD2
Application example System voltage DC (Reinforced insulation)		V	800	According to IEC 62109-1 CAT III, PD2

1) Done on LEM evaluation board PCB 6030.

2411011542_LEM-HMSR-6-SMS_C7460383.pdf

High voltage capable LEM HMSR 6-SMS integrated current sensor with strong immunity to external magnetic fields Images

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