L18P003D15 Hall Effect Current Sensor - Equivalent & Substitute Parts

Part Overview

The L18P003D15 is a Hall Effect open-loop current sensor manufactured by Tamura, designed for AC/DC current measurement applications with a 3A sensing range. This component features ratiometric voltage output, bidirectional polarization, and through-hole mounting in a module package format.

The L18P003D15 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this sensor.

Substiute Parts

L18P003D15

TamuraIn Stock: 1959L18P003D15 Datasheet

Current PartRFQ

L18P003D15-OP

TamuraIn Stock: 1971L18P003D15-OP Datasheet

MFR RecommendedRFQ

HX 03-P

LEM USA Inc.In Stock: 2036HX 03-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L18P003D15 are identified based on strict parameter matching across the following critical specifications:

Core Functional Parameters:

• Sensor Type: Hall Effect, Open Loop
• Current Sensing: 3A
• Number of Channels: 1
• Output: Ratiometric, Voltage
• Polarization: Bidirectional
• Measurement: AC/DC

Electrical Parameters:

• Voltage Supply: ±15V (or compatible range ±12V ~ 15V)
• Linearity: ±1%
• Response Time: 5µs or faster
• Current Supply (Max): 15mA or higher capacity

Mechanical Parameters:

• Mounting Type: Through Hole
• Package Type: Module

Compliance Parameters:

• RoHS Status: RoHS Compliant or ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 9030.33.3800

Parts meeting these criteria are classified as direct substitutes. Packaging format (Bulk vs. Tray) and product status (Active vs. Obsolete/Not For New Designs) are noted but do not disqualify substitution eligibility based on electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

L18P003D15-OP (Tamura) - Manufacturer Recommended Substitute

The L18P003D15-OP is the primary substitute for the obsolete L18P003D15. Both parts are manufactured by Tamura and share identical functional specifications: 3A Hall Effect open-loop current sensing, ratiometric voltage output, bidirectional polarization, and ±1% linearity. The L18P003D15-OP maintains the same operating temperature range (-30°C ~ 80°C) and response time (5µs). The supply voltage range is expanded to ±12V ~ 15V, providing greater flexibility in power supply design. Maximum supply current increases from 15mA to 18mA. The L18P003D15-OP carries Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. Packaging is supplied in Tray format rather than Bulk.

HX 03-P (LEM USA Inc.) - Cross-Manufacturer Substitute

The HX 03-P is a functionally equivalent Hall Effect current sensor from LEM USA Inc. meeting all core electrical and mechanical parameters: 3A sensing, open-loop operation, ratiometric voltage output, bidirectional polarization, and ±1% linearity. The HX 03-P demonstrates superior response time (3µs versus 5µs) and operates across a wider temperature range (-25°C ~ 85°C). Supply voltage and maximum current specifications are identical to the L18P003D15. The HX 03-P carries "Not For New Designs" status, indicating it remains available for legacy system support but is not recommended for new product development. RoHS compliance and ECCN/HTSUS classifications are equivalent.

Selection Criteria:

For new designs or long-term production continuity, the L18P003D15-OP is the preferred substitute due to Active product status and manufacturer continuity with the original part.

For applications requiring faster response time or extended temperature operating range, the HX 03-P provides technical advantages, with the understanding that this part is not designated for new designs.

Frequently Asked Questions (FAQ)

Q: Can the L18P003D15-OP directly replace the L18P003D15 without circuit modifications?

A: Yes. The L18P003D15-OP is electrically and mechanically compatible with the L18P003D15. Both parts feature identical 3A current sensing, ±15V supply voltage, ratiometric voltage output, 5µs response time, and through-hole module mounting. The expanded supply voltage range (±12V ~ 15V) on the L18P003D15-OP is backward compatible with ±15V designs. No circuit modifications are required.

Q: What is the difference between Bulk and Tray packaging for these sensors?

A: Bulk and Tray are packaging and delivery formats that do not affect electrical or mechanical performance. The L18P003D15 is supplied in Bulk packaging, while the L18P003D15-OP is supplied in Tray packaging. Selection between these formats depends on inventory management, handling procedures, and procurement requirements rather than technical compatibility.

Q: Why is the HX 03-P marked "Not For New Designs" if it is functionally equivalent?

A: "Not For New Designs" is a product lifecycle designation indicating that while the HX 03-P remains available and functional, the manufacturer does not recommend its use in new product development. This status typically reflects long-term supply strategy or product line consolidation. The HX 03-P remains suitable for legacy system maintenance and repair applications where the original part is no longer available.

Q: Are there frequency response differences between these three sensors?

A: The L18P003D15 specifies DC ~ 100kHz frequency response. The L18P003D15-OP does not specify frequency response in the provided data. The HX 03-P specifies 50kHz frequency response. For applications requiring operation above 50kHz, the L18P003D15 or L18P003D15-OP may provide superior performance. For applications operating at or below 50kHz, all three parts are compatible.

Q: What compliance certifications apply to these sensors?

A: All three parts carry EAR99 ECCN classification and 9030.33.3800 HTSUS code. The L18P003D15 and HX 03-P are RoHS Compliant. The L18P003D15-OP is ROHS3 Compliant, representing a more recent regulatory standard. All parts are classified as Not Applicable for Moisture Sensitivity Level (MSL).

Q: Can the L18P003D15 be used in new designs if inventory is available?

A: The L18P003D15 carries Obsolete product status. While existing inventory may be available, using obsolete components in new designs introduces long-term supply risk. The L18P003D15-OP, with Active status and identical functionality, is the recommended choice for new product development to ensure sustained component availability throughout the product lifecycle.