L18P020S12 Hall Effect Current Sensor - Equivalent & Substitute Parts

Part Overview

The L18P020S12 is an active Hall Effect current sensor manufactured by Tamura, designed for AC/DC current measurement applications. This open-loop, bidirectional module provides ratiometric voltage output with a 20A sensing range and operates across a wide frequency spectrum from DC to 100kHz. The part is currently in active production status with 780 units available in new original inventory.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when supply chain constraints occur, or when system design requires alternative supply voltage configurations while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

L18P020S12

TamuraIn Stock: 825L18P020S12 Datasheet

Current PartRFQ

L18P020S05

TamuraIn Stock: 1110L18P020S05 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L18P020S12 are identified based on strict electrical and mechanical parameter matching within the L18PXXXS series family. The primary substitution criterion is functional equivalence across all critical parameters: sensor type, current sensing capacity, channel configuration, output characteristics, frequency response, linearity, response time, operating temperature range, polarization mode, and mounting methodology.

The L18P020S05 qualifies as a parametric equivalent based on the following matching criteria:

• Identical sensor technology: Hall Effect, Open Loop
• Identical current sensing range: 20A
• Identical channel count: 1 channel
• Identical output configuration: Ratiometric, Voltage
• Identical frequency response: DC ~ 100kHz
• Identical linearity specification: ±1%
• Identical response time: 5µs
• Identical maximum supply current: 15mA
• Identical operating temperature range: -30°C ~ 80°C
• Identical polarization: Bidirectional
• Identical mounting type: Through Hole
• Identical package type: Module

The primary difference between these parts is the supply voltage requirement: L18P020S12 operates at 12V, while L18P020S05 operates at 5V. This distinction is critical for system integration and must be evaluated against the available power supply infrastructure in the target application.

Parameter Comparison

Engineering Selection Recommendations

Selection between L18P020S12 and L18P020S05 is determined by the system power supply architecture. Both parts maintain active production status and full RoHS compliance, ensuring long-term availability and regulatory conformance.

The L18P020S12 is the primary selection for systems with 12V supply infrastructure. The L18P020S05 serves as a direct functional substitute for systems operating on 5V supply rails, provided that the system design accommodates the different supply voltage requirement.

Both parts are manufactured by Tamura and classified under ECCN EAR99 with identical HTSUS code 9030.33.3800, indicating equivalent regulatory treatment for export and import purposes.

The choice between these parts does not involve performance trade-offs in sensing accuracy, response characteristics, or operating range. The decision is purely infrastructure-dependent based on available supply voltage in the target application.

Frequently Asked Questions (FAQ)

Q: Can L18P020S05 be used as a direct replacement for L18P020S12 without circuit modification?

A: No. The L18P020S05 requires a 5V supply voltage while the L18P020S12 requires 12V. Direct substitution without power supply modification will result in sensor malfunction. The system power delivery circuit must be evaluated and potentially redesigned to accommodate the different supply voltage requirement.

Q: Are the output voltage ranges identical between these two parts?

A: Both parts provide ratiometric voltage output with identical linearity (±1%) and response characteristics. However, the output voltage scaling is proportional to the supply voltage. The L18P020S12 output is scaled to 12V operation, while the L18P020S05 output is scaled to 5V operation. Signal conditioning or analog-to-digital conversion circuits must account for this difference.

Q: What is the significance of the series designation L18PXXXS12 versus L18PXXXS05?

A: The series designation indicates the supply voltage variant. The "S12" suffix denotes 12V operation, while "S05" denotes 5V operation. All other electrical and mechanical characteristics remain constant within the L18PXXX family structure.

Q: Are both parts available in the same packaging format?

A: Both parts are supplied as modules with through-hole mounting. The L18P020S12 is available in through-hole packaging, and the L18P020S05 is available in bulk packaging. The physical module dimensions and pin configuration are identical, ensuring mechanical compatibility in PCB layouts.

Q: What is the inventory status for each part?

A: The L18P020S12 has 780 units in new original stock. The L18P020S05 has 1040 units in new original stock. Both parts are actively manufactured and available for procurement.

Q: Do both parts meet current RoHS requirements?

A: Yes. The L18P020S12 is RoHS Compliant. The L18P020S05 is ROHS3 Compliant. Both designations indicate full compliance with current and historical RoHS directives, with no restrictions on procurement or use in regulated markets.

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

A: Both the L18P020S12 and L18P020S05 provide identical frequency response from DC to 100kHz with 5µs response time. This specification applies regardless of the supply voltage variant selected.

Q: Can these sensors measure both AC and DC current?

A: Yes. Both parts are specified for AC/DC current measurement. The bidirectional polarization enables measurement of current flow in both directions, and the DC to 100kHz frequency response accommodates both steady-state DC measurements and AC waveforms within the specified bandwidth.