FXPS7400DI4T1 Equivalent & Substitute Parts

Part Overview

The FXPS7400DI4T1 is a 32-bit absolute pressure sensor manufactured by NXP USA Inc., designed for applications requiring pressure measurement in the 2.9PSI to 58.02PSI (20kPa to 400kPa) range. The device communicates via I2C interface and operates across -40°C to 130°C. This part is currently obsolete, making identification of active equivalent alternatives essential for ongoing production and maintenance applications.

Substiute Parts

FXPS7400DI4T1

NXP USA Inc.In Stock: 870FXPS7400DI4T1 Datasheet

Current PartRFQ

FXPS7400DI4ST1

NXP USA Inc.In Stock: 764FXPS7400DI4ST1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FXPS7400DI4T1 is determined by the following critical parameters:

• Pressure Type: Absolute
• Operating Pressure Range: 2.9PSI ~ 58.02PSI (20kPa ~ 400kPa)
• Output Interface: I2C
• Output Resolution: 32 bit
• Supply Voltage Range: 3.1V ~ 5.25V
• Operating Temperature Range: -40°C ~ 130°C
• Package Type: 16-QFN Exposed Pad
• Mounting Configuration: Surface Mount, Wettable Flank

The FXPS7400DI4ST1 meets all these core substitution criteria. Both parts share identical pressure measurement specifications, communication protocol, resolution, voltage requirements, temperature range, and physical package configuration. The primary difference is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The FXPS7400DI4ST1 is the direct active substitute for the obsolete FXPS7400DI4T1. Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility.

Key considerations for selection:

• The FXPS7400DI4ST1 is currently in active production status, ensuring long-term availability and supply chain continuity.
• Both parts are functionally equivalent across all critical pressure measurement parameters, I2C communication, and thermal operating ranges.
• The substitute exhibits lower accuracy (±0.83PSI versus ±0.51PSI) and higher maximum pressure rating (65.27PSI versus 9.43PSI). Applications requiring the original ±0.51PSI accuracy specification must evaluate whether the ±0.83PSI tolerance is acceptable.
• Packaging differs between tube and tape & reel formats; procurement and assembly processes may require adjustment.
• Identical pinout, package footprint, and mounting configuration enable direct PCB-level substitution without redesign.

Frequently Asked Questions (FAQ)

Q: Can FXPS7400DI4ST1 be used as a direct replacement for FXPS7400DI4T1?

A: Yes. Both parts share identical pressure measurement range (2.9PSI ~ 58.02PSI), I2C interface, 32-bit output, supply voltage (3.1V ~ 5.25V), operating temperature (-40°C ~ 130°C), and 16-QFN package configuration. The substitute is pin-compatible and functionally equivalent for applications within these specifications.

Q: What are the differences between these parts?

A: The primary differences are product status (obsolete versus active), accuracy specification (±0.51PSI versus ±0.83PSI), maximum pressure rating (9.43PSI versus 65.27PSI), and packaging format (tube versus tape & reel). The substitute offers improved overpressure protection but with slightly reduced accuracy.

Q: Does accuracy difference affect compatibility?

A: Accuracy compatibility depends on application requirements. If your system design requires ±0.51PSI accuracy, the substitute's ±0.83PSI specification represents a degradation. If your application tolerates ±0.83PSI or better, the substitute is fully compatible.

Q: Are there packaging considerations?

A: Yes. The original part is supplied in tube packaging; the substitute uses tape & reel format. This affects bulk ordering quantities, handling procedures, and automated assembly compatibility. Verify your assembly equipment supports tape & reel input.

Q: Are both parts RoHS and MSL compliant?

A: Yes. Both FXPS7400DI4T1 and FXPS7400DI4ST1 are ROHS3 compliant with MSL rating 3 (168 Hours), ensuring identical environmental and moisture sensitivity handling requirements.

Q: What is the maximum pressure difference between these parts?

A: The original part is rated to 9.43PSI maximum pressure; the substitute is rated to 65.27PSI. For applications operating near the original 9.43PSI limit, the substitute provides additional overpressure margin. This does not affect normal operation within the 2.9PSI ~ 58.02PSI range.