L18P030S12 Equivalent & Substitute Parts Reference

Part Overview

The L18P030S12 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 30A sensing range and operates across a wide frequency spectrum from DC to 100kHz. The part is currently in active production status with 1096 units in stock inventory.

Identifying equivalent and substitute parts becomes necessary when the L18P030S12 reaches end-of-life status, when supply constraints occur, or when application requirements shift to different current ranges or supply voltage specifications. Substitute parts within the L18PXXXS series maintain core Hall Effect sensing architecture while accommodating variations in rated current capacity and supply voltage requirements.

Substiute Parts

L18P030S12

TamuraIn Stock: 1158L18P030S12 Datasheet

Current PartRFQ

L18P020S05

TamuraIn Stock: 1110L18P020S05 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L18P030S12 is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

• Sensor Type: Hall Effect, Open Loop
• Number of Channels: 1
• Output Type: Ratiometric, Voltage
• Frequency Range: DC ~ 100kHz
• Linearity: ±1%
• Response Time: 5µs
• Current - Supply (Max): 15mA
• Operating Temperature: -30°C ~ 80°C
• Polarization: Bidirectional
• Mounting Type: Through Hole
• Package / Case: Module
• For Measuring: AC/DC

Variable Parameters (Allowable Differences):

• Current - Sensing: May differ based on application requirements
• Voltage - Supply: May differ based on system power architecture
• Series designation: Variations within L18PXXXS family permitted

The L18P020S05 qualifies as a parametric equivalent substitute based on matching all mandatory parameters while accommodating a reduced current sensing range (20A versus 30A) and alternative supply voltage specification (5V versus 12V).

Parameter Comparison

Engineering Selection Recommendations

For L18P030S12 Substitution:

The L18P020S05 serves as a parametric equivalent when application requirements permit operation at reduced current sensing capacity (20A maximum versus 30A) and when the system power architecture supports 5V supply voltage instead of 12V.

Both parts maintain active production status with confirmed inventory availability. Both parts satisfy RoHS compliance requirements, with the L18P020S05 meeting the more recent ROHS3 specification standard.

The identical response time (5µs), frequency bandwidth (DC to 100kHz), linearity specification (±1%), and bidirectional measurement capability ensure functional equivalence in signal processing and measurement accuracy characteristics.

Selection between these parts depends exclusively on:

1. Maximum current measurement requirement of the application circuit
2. Available supply voltage in the system power distribution architecture
3. Physical space constraints relative to module form factor

No additional testing or verification is required when substituting between these parts, provided the application current range does not exceed 20A and the system power supply can deliver 5V at 15mA maximum consumption.

Frequently Asked Questions (FAQ)

Q: Can L18P020S05 replace L18P030S12 in all applications?

A: No. The L18P020S05 has a maximum current sensing rating of 20A. It can only replace the L18P030S12 in applications where the measured current does not exceed 20A. If your application requires measurement of currents between 20A and 30A, the L18P030S12 is the required part.

Q: What is the primary difference between these two parts?

A: Two parameters differ: current sensing capacity (30A versus 20A) and supply voltage requirement (12V versus 5V). All other electrical and mechanical specifications are identical.

Q: Does the L18P020S05 require different PCB layout or mounting considerations?

A: No. Both parts use identical Through Hole mounting type and Module package format. PCB layout and mechanical mounting are directly compatible.

Q: Are both parts currently available for procurement?

A: Yes. The L18P030S12 has 1096 units in stock inventory. The L18P020S05 has 1040 units in stock inventory. Both parts maintain active production status.

Q: Do these parts have different compliance certifications?

A: Both parts are RoHS compliant. The L18P030S12 carries RoHS Compliant status. The L18P020S05 carries the more recent ROHS3 Compliant status. Both satisfy environmental compliance requirements.

Q: What happens if I use L18P020S05 in a circuit designed for L18P030S12?

A: The substitution is valid only if the actual current being measured in your application does not exceed 20A. The sensor will operate correctly within its 20A rating. If currents exceed 20A, the sensor output will saturate and measurement accuracy will be compromised.

Q: Can I use L18P030S12 as a substitute for L18P020S05?

A: Yes. The L18P030S12 can replace the L18P020S05 in any application. However, this substitution requires that your system power supply can deliver 12V instead of 5V. The higher current capacity of the L18P030S12 does not create any compatibility issues in applications rated for 20A maximum current.

Q: What is the significance of the "S12" and "S05" designations in the part numbers?

A: These designations indicate the supply voltage specification. "S12" indicates 12V supply voltage. "S05" indicates 5V supply voltage. The "L18P030" and "L18P020" prefixes indicate the current sensing capacity (30A and 20A respectively).