MPL115A2 Equivalent & Substitute Parts

Part Overview

The MPL115A2 is an absolute pressure sensor manufactured by NXP USA Inc., designed for board mount applications with an I2C digital output interface. This 10-bit sensor measures pressures in the range of 7.25PSI to 16.68PSI (50kPa to 115kPa) with ±0.145PSI (±1kPa) accuracy. The device is packaged in an 8-TLGA surface mount configuration and operates across -40°C to 105°C.

The MPL115A2 is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure continued design support, maintain supply chain reliability, and access components with active manufacturing status and improved specifications where applicable.

Key Parameters

Parameter	Value
Manufacturer	NXP USA Inc.
Part Number	MPL115A2
Product Status	Obsolete
Pressure Type	Absolute
Operating Pressure Range	7.25PSI ~ 16.68PSI (50kPa ~ 115kPa)
Output Type	I2C
Output Resolution	10-bit
Accuracy	±0.145PSI (±1kPa)
Supply Voltage	2.375V ~ 5.5V
Operating Temperature	-40°C ~ 105°C
Package Type	8-TLGA (5x3)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the MPL115A2 is determined by the following critical parameters:

Pressure Type: Must be Absolute (matching the original specification)
Operating Pressure Range: Must encompass or exceed the 7.25PSI ~ 16.68PSI range
Output Interface: Must be I2C digital output for direct firmware compatibility
Mounting Type: Must be Surface Mount for PCB integration compatibility
Supply Voltage Compatibility: Must operate within or overlap the 2.375V ~ 5.5V range
Operating Temperature Range: Must support the -40°C ~ 105°C operating window
RoHS Compliance: Must maintain ROHS3 compliance for regulatory alignment

The MS563702BA03-50 manufactured by TE Connectivity Measurement Specialties satisfies all substitution criteria. While it offers improved specifications (24-bit resolution versus 10-bit, ±0.058PSI accuracy versus ±0.145PSI), the core functional parameters align with the MPL115A2 requirements.

Parameter Comparison

Parameter	MPL115A2 (NXP)	MS563702BA03-50 (TE Connectivity)	Compatibility Notes
Pressure Type	Absolute	Absolute	Match
Operating Pressure Range	7.25PSI ~ 16.68PSI (50kPa ~ 115kPa)	4.35PSI ~ 17.4PSI (30kPa ~ 120kPa)	Substitute range encompasses original range
Output Type	I2C	I2C	Match
Output Resolution	10-bit	24-bit	Substitute provides higher resolution
Accuracy	±0.145PSI (±1kPa)	±0.058PSI (±0.4kPa)	Substitute provides improved accuracy
Supply Voltage	2.375V ~ 5.5V	1.5V ~ 3.6V	Partial overlap; substitute requires lower voltage design consideration
Operating Temperature	-40°C ~ 105°C	-40°C ~ 85°C	Substitute has narrower upper temperature limit
Mounting Type	Surface Mount	Surface Mount	Match
Package Type	8-TLGA (5x3)	4-SMD	Different package; PCB layout modification required
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Product Status	Obsolete	Active	Substitute has active manufacturing status

Engineering Selection Recommendations

The MS563702BA03-50 is the designated manufacturer-recommended substitute for the MPL115A2. Both components maintain ROHS3 compliance and are suitable for board mount applications with I2C digital interfaces.

Key considerations for selection:

Supply Voltage: The MS563702BA03-50 operates at 1.5V ~ 3.6V, which overlaps with but does not fully cover the MPL115A2 range of 2.375V ~ 5.5V. Designs operating above 3.6V require voltage regulation or redesign.
Operating Temperature: The MS563702BA03-50 maximum operating temperature is 85°C, compared to 105°C for the MPL115A2. Applications requiring operation above 85°C must retain the original MPL115A2 or identify alternative solutions.
Package Footprint: The transition from 8-TLGA to 4-SMD requires PCB layout modification and component placement adjustment.
Product Status: The MS563702BA03-50 is actively manufactured, ensuring long-term availability and supply chain continuity compared to the obsolete MPL115A2.

Frequently Asked Questions (FAQ)

Q: Can the MS563702BA03-50 directly replace the MPL115A2 without firmware changes?

A: Both sensors use I2C output and measure absolute pressure in overlapping ranges. However, the MS563702BA03-50 provides 24-bit resolution versus the MPL115A2's 10-bit resolution. Firmware must be updated to handle the increased data resolution. I2C address configuration should be verified for each device.

Q: What are the package differences between these two sensors?

A: The MPL115A2 uses an 8-TLGA (5x3mm) package, while the MS563702BA03-50 uses a 4-SMD package. These have different footprints and pin configurations. PCB redesign is required for physical substitution.

Q: Is the MS563702BA03-50 suitable for applications operating above 85°C?

A: No. The MS563702BA03-50 maximum operating temperature is 85°C. Applications requiring operation up to 105°C must use the MPL115A2 or identify alternative pressure sensors with higher temperature ratings.

Q: What supply voltage should be used with the MS563702BA03-50?

A: The MS563702BA03-50 operates at 1.5V ~ 3.6V. The MPL115A2 operates at 2.375V ~ 5.5V. If your design uses supply voltages above 3.6V, voltage regulation or redesign is necessary for the substitute part.

Q: Are both sensors RoHS compliant?

A: Yes. Both the MPL115A2 and MS563702BA03-50 are ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: Why is the MS563702BA03-50 recommended as a substitute if it has a narrower operating temperature range?

A: The MS563702BA03-50 is the manufacturer-recommended substitute based on functional equivalence in pressure measurement, I2C interface compatibility, and active product status. Design constraints specific to your application (temperature, voltage, package) must be evaluated independently.

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