HLSR 10-SM Hall Effect Current Sensor Equivalent & Substitute Parts

Part Overview

The HLSR 10-SM is an active Hall Effect current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications requiring open-loop bidirectional sensing. This surface-mount module sensor operates at 5V supply voltage with a 10A sensing range and ratiometric voltage output. The product maintains Active status with full RoHS compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct functional replacement while accommodating specific application requirements such as alternative supply voltages or sensitivity specifications.

Substiute Parts

HLSR 10-SM

LEM USA Inc.In Stock: 842HLSR 10-SM Datasheet

Current PartRFQ

HLSR 10-SM/SP33

LEM USA Inc.In Stock: 1121HLSR 10-SM/SP33 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HLSR 10-SM is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current sensing range: 10A
• Sensor technology: Hall Effect, Open Loop
• Channel configuration: 1 Channel
• Output format: Ratiometric, Voltage
• Frequency response: 400kHz
• Linearity tolerance: ±0.5%
• Accuracy tolerance: ±1%
• Response time: 2.5µs
• Operating temperature range: -40°C to 105°C
• Polarization: Bidirectional
• Mounting: Surface Mount, Module package
• Compliance: RoHS Compliant, REACH Unaffected

Variable Parameters Allowing Substitution:

• Supply voltage (5V or 3.3V)
• Sensitivity (80mV/A or 46mV/A)
• Maximum supply current (25mA maximum)

The HLSR 10-SM/SP33 qualifies as a parametric equivalent because it maintains all mandatory parameters while offering alternative supply voltage (3.3V) and corresponding sensitivity adjustment (46mV/A). This substitution is valid for applications where 3.3V supply voltage is available and the lower sensitivity specification is acceptable.

Parameter Comparison

Engineering Selection Recommendations

HLSR 10-SM Selection Criteria: Select the HLSR 10-SM for applications requiring 5V supply voltage operation with 80mV/A sensitivity. This configuration provides higher output signal amplitude per ampere of measured current, beneficial for systems with analog-to-digital conversion stages requiring maximum signal resolution. Both the main part and substitute maintain identical accuracy (±1%), linearity (±0.5%), and response time (2.5µs) specifications.

HLSR 10-SM/SP33 Selection Criteria: Select the HLSR 10-SM/SP33 for applications operating on 3.3V supply voltage with corresponding 46mV/A sensitivity. This variant is suitable for low-voltage digital systems and microcontroller-based measurement platforms. The reduced sensitivity reflects the lower supply voltage while maintaining equivalent measurement accuracy and frequency response characteristics.

Compliance Considerations: Both parts maintain Active product status, RoHS Compliance, and REACH Unaffected designation. MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for storage or handling. Selection between variants should be based solely on available supply voltage in the target application circuit.

Frequently Asked Questions (FAQ)

Q: Can HLSR 10-SM/SP33 directly replace HLSR 10-SM in existing designs?

A: Direct replacement requires verification that the application circuit provides 3.3V supply voltage instead of 5V. The reduced sensitivity (46mV/A versus 80mV/A) must be accommodated in the signal conditioning or analog-to-digital conversion stage. All other electrical and mechanical parameters remain equivalent.

Q: What is the significance of the sensitivity difference between these parts?

A: Sensitivity (mV/A) defines the output voltage change per ampere of measured current. The HLSR 10-SM produces 80mV per ampere at 5V supply, while the HLSR 10-SM/SP33 produces 46mV per ampere at 3.3V supply. This difference is proportional to the supply voltage reduction and does not affect measurement accuracy (±1%) or linearity (±0.5%).

Q: Are both parts suitable for AC/DC current measurement?

A: Both the HLSR 10-SM and HLSR 10-SM/SP33 are specified for AC/DC current measurement with bidirectional polarization, enabling measurement of current flow in both directions without circuit modification.

Q: What is the maximum current these sensors can measure?

A: Both parts are rated for 10A current sensing range. This represents the maximum continuous current measurement capability for each sensor.

Q: Do these sensors require any special handling or storage conditions?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity level restrictions. Standard electronic component handling practices apply.

Q: What is the frequency response capability of these sensors?

A: Both parts specify 400kHz frequency response, enabling measurement of current variations up to this frequency with 2.5µs response time.

Q: Are there any differences in operating temperature range between the variants?

A: Both the HLSR 10-SM and HLSR 10-SM/SP33 operate across identical temperature range of -40°C to 105°C.