NXP Semiconductors MPX5100D

Overview

MPX5100D from NXP Semiconductors is a monolithic silicon piezoresistive pressure sensor in unibody package, configured for differential pressure measurement over 0–100 kPa range, with ±2.5% full-scale accuracy (0–85 °C), ratiometric 4.75–5.25 V supply operation, and 45 mV/kPa sensitivity. It delivers analog output proportional to applied pressure and is used in pump/motor control and pressure switching systems.

For engineers reviewing the MPX5100D datasheet, MPX5100D pinout, MPX5100D application, or MPX5100D equivalent, this page provides verified technical context, pin-level design meaning, real-world use scenarios, and validated alternative options for differential pressure sensing in embedded industrial and medical systems.

Technical Context

The MPX5100D integrates a patented silicon shear-stress strain gauge with on-chip thin-film temperature compensation and dual-stage gain amplification. Its transfer function is VOUT = VS × (0.009 × P + 0.04), where P is pressure in kPa and VS is supply voltage - enabling direct A/D interfacing without external signal conditioning.

It operates across –40 to +125 °C, supports dry air as pressure media, and features 1 ms response time with 20 ms warm-up time. The device uses fluorosilicone gel isolation and epoxy unibody construction for environmental robustness and long-term offset stability of ±0.5% VFSS after 1000-hour stress testing.

Key Specifications

Pinout & Package

MPX5100D uses the 6-lead unibody package (case 98ASB42797B), with port-side marking identification and epoxy encapsulation for media isolation. Pin 1 (VOUT) delivers the conditioned analog pressure signal; pins 4–6 are internal connections and must remain unconnected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential pressure sensing applications.

Compared with MPX5100D, MPXV5100DP offers SMT scalability at the cost of reduced media protection, while MPX5700DP trades range extension and improved accuracy for lower resolution in low-pressure applications - making MPX5100D optimal for cost-sensitive, medium-accuracy 0–100 kPa embedded systems.

Availability

MPX5100D is available at Aetrix Electronics and suitable for pump/motor control, pressure switching, and patient monitoring applications requiring stable component supply, long-lifecycle support, and traceable sourcing for medical and industrial OEMs.

Supply support for MPX5100D includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.

The MPX5100 series belongs to NXP's integrated pressure sensor product line, designed specifically for microcontroller-based systems requiring factory-calibrated, temperature-compensated analog pressure outputs without external signal conditioning.

FAQ

What is the pressure type and range supported by the MPX5100D?

The MPX5100D is a differential pressure sensor with a specified range of 0 to 100 kPa. It measures the pressure difference between two ports (P1 and P2), where P1 > P2 is required for proper operation. This range corresponds to approximately 0–14.5 psi and is validated for accuracy and linearity across the full span under standard test conditions (VS = 5.0 V, TA = 25 °C).

Does the MPX5100D require external calibration or signal conditioning?

No, the MPX5100D does not require external calibration or signal conditioning. It integrates on-chip temperature compensation, dual-stage gain amplification, and a patented silicon shear-stress strain gauge to deliver a ratiometric analog output (VOUT = VS × (0.009 × P + 0.04)). This allows direct connection to a microcontroller's ADC input with only recommended decoupling capacitors (0.01 μF and 1.0 μF) per Figure 7 of the datasheet.

What is the correct pin configuration and handling guidance for MPX5100D?

The MPX5100D uses a 6-lead unibody package (98ASB42797B) with pins 1–3 active (VOUT, GND, VS) and pins 4–6 marked DNC (do not connect). These internal terminals must remain electrically floating - grounding or routing traces to them will disrupt internal biasing and degrade accuracy. The pressure port side is identified by part marking, and the device must be mounted with P1 facing the higher-pressure source.

Can MPX5100D be used with pressure media other than dry air?

NXP specifies that MPX5100D operating characteristics and reliability validation are based exclusively on dry air as the pressure medium. Other media - including moisture, oils, or corrosive gases - may degrade fluorosilicone gel isolation or cause long-term drift. For non-dry-air applications, consult NXP's factory for media compatibility testing reports before deployment; no guarantee of performance or lifetime is provided outside dry air use.

What is the warm-up time and response time specification for MPX5100D?

The MPX5100D has a warm-up time of 20 ms - defined as the time required to meet specified output voltage after pressure stabilization - and a response time of 1.0 ms, measured as the 10% to 90% rise time under a step pressure change. These values enable real-time monitoring in dynamic systems such as motor-driven fluid control or respiratory equipment where sub-10 ms latency is critical for closed-loop responsiveness.