HO 25-P/SP33 Current Sensor Hall Effect Equivalent & Substitute Parts

Part Overview

The HO 25-P/SP33 is a Hall Effect open loop current sensor manufactured by LEM USA Inc., designed for AC/DC current measurement applications. This single-channel, bidirectional module provides ratiometric voltage output with a 25A sensing range and operates across industrial temperature ranges from -40°C to 105°C. The part is Active status and RoHS Compliant, making it suitable for modern electronic applications requiring current monitoring in power management, motor control, and energy measurement systems.

Substitute parts within the HO-P/SP33 series are identified based on identical electrical characteristics and mechanical compatibility, with the primary variable being the current-sensing range. Alternative models in this series maintain full parameter equivalence across frequency response, accuracy, supply voltage, and mounting specifications.

Substiute Parts

HO 25-P/SP33

LEM USA Inc.In Stock: 949HO 25-P/SP33 Datasheet

Current PartRFQ

HO 10-P/SP33

LEM USA Inc.In Stock: 834HO 10-P/SP33 Datasheet

Parametric EquivalentRFQ

HO 6-P/SP33

LEM USA Inc.In Stock: 1247HO 6-P/SP33 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the HO-P/SP33 series are classified as parametric equivalents based on the following substitution criteria:

Identical Parameters (Substitution Basis):

• Sensor Type: Hall Effect, Open Loop
• Measurement Type: AC/DC bidirectional
• Number of Channels: 1
• Output Configuration: Ratiometric, Voltage
• Frequency Response: DC ~ 250kHz
• Linearity: ±0.5%
• Accuracy: ±1.4%
• Supply Voltage: 3.3V
• Response Time: 3.5µs
• Maximum Supply Current: 25mA
• Operating Temperature Range: -40°C ~ 105°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package Type: Module, Single Pass Through
• Compliance: RoHS Compliant, REACH Unaffected

Variable Parameter (Differentiator):

• Current - Sensing Range: 6A, 10A, or 25A

The HO-P/SP33 series provides three current-sensing options within a single product family. All models share identical electrical performance characteristics, mechanical form factors, and environmental specifications. Substitution between models is determined solely by the application's maximum current measurement requirement.

Parameter Comparison

Engineering Selection Recommendations

All three models in the HO-P/SP33 series maintain Active product status with full RoHS Compliance and REACH Unaffected certification. Selection between HO 25-P/SP33, HO 10-P/SP33, and HO 6-P/SP33 is determined by the maximum current measurement requirement of the application.

HO 25-P/SP33 is selected for applications requiring measurement of currents up to 25A. This model provides the widest measurement range within the series.

HO 10-P/SP33 is selected for applications with maximum current requirements up to 10A. This model offers intermediate range coverage.

HO 6-P/SP33 is selected for applications with maximum current requirements up to 6A. This model provides the lowest current range within the series.

All models deliver identical electrical performance, frequency response, accuracy, and environmental operating specifications. The choice between models is purely application-dependent based on the maximum current to be measured. No performance trade-offs exist between models for applications operating within the specified current range of the selected part.

Frequently Asked Questions (FAQ)

Q: Can HO 10-P/SP33 be used as a substitute for HO 25-P/SP33?

A: HO 10-P/SP33 can be used as a substitute only if the application's maximum current requirement does not exceed 10A. The 10A model has a lower current-sensing range than the 25A model. All other electrical and mechanical parameters are identical.

Q: Can HO 25-P/SP33 be used as a substitute for HO 10-P/SP33?

A: HO 25-P/SP33 can be used as a substitute for HO 10-P/SP33. The 25A model accommodates the full 10A measurement range with identical electrical performance. No parameter degradation occurs.

Q: What is the difference between these three models?

A: The only difference is the current-sensing range: HO 6-P/SP33 measures up to 6A, HO 10-P/SP33 measures up to 10A, and HO 25-P/SP33 measures up to 25A. All other specifications including accuracy, frequency response, supply voltage, response time, and operating temperature are identical across all three models.

Q: Are all three models in the same package?

A: Yes. All three models use identical Through Hole mounting, Module Single Pass Through package configuration, and Tray packaging. No mechanical redesign is required when substituting between models.

Q: Do all models have the same supply voltage requirement?

A: Yes. All three models require 3.3V supply voltage and draw a maximum of 25mA supply current. Power supply specifications are identical across the HO-P/SP33 series.

Q: Are there any compliance differences between the models?

A: No. All three models are RoHS Compliant and REACH Unaffected. All models carry Active product status. Regulatory compliance is uniform across the series.

Q: What is the frequency response of these sensors?

A: All three models operate across the frequency range DC ~ 250kHz with identical response time of 3.5µs. Frequency performance is consistent across all current-sensing variants.