MPX5100D - 100 kPa Differential Pressure Sensor | NXP Semiconductors
N.º da peça: MPX5100D ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1.385,00 |
| 500 | $12.1 | $6.050,00 |
| 1.000 | $10.75 | $10.750,00 |
MPX5100D Visão geral
A piezoresistive pressure sensor is a transducer that converts an applied pressure into a measurable electrical signal by exploiting the piezoresistive effect in silicon; the on-chip signal conditioning, temperature compensation, and factory calibration eliminate the need for external amplification or trimming in most applications. Piezoresistive sensors occupy the middle of the transducer hierarchy, between raw resistive strain gauges and fully integrated MEMS pressure modules that include digital I²C/SPI outputs. The MPX5100 series is widely adopted in cost-sensitive embedded designs that need an analog, microcontroller-friendly signal.
Key features include a differential pressure range of 0 to 100 kPa (0 to 14.5 PSI), supply voltage of 4.75 V to 5.25 V, typical full-scale span of 45 mV/kPa, accuracy of ±1.8 %VFSS (maximum), and an operating temperature range of -40 °C to +125 °C. The ratiometric analog output spans 0.2 V at zero pressure to 4.7 V at full-scale pressure, mapping directly into a 0–5 V microcontroller ADC without external op-amps. The monolithic single-element die combines micromachined sensing, thin-film metallization and bipolar processing for long-term stability.
Architecturally, the device is a monolithic silicon die in which a micromachined diaphragm and four piezoresistors form a Wheatstone bridge; the bridge is excited by the supply voltage so the output is ratiometric, and on-chip ASIC circuitry offsets, spans, and temperature-compensates the raw signal. The calibrated output swing of 4.5 V across 100 kPa gives a usable sensitivity of 45 mV/kPa and supports direct connection to a 10-bit ADC. The through-hole SIP module includes a dual axial pressure port geometry (P1 = high-pressure side, P2 = low-pressure or vacuum reference) for differential measurement on tube-fed systems.
Typical applications include automotive engine manifold absolute pressure (MAP) sensing, barometric air-pressure monitoring, HVAC duct pressure measurement, medical respiratory equipment, and industrial process-control loops. The wide temperature range and ratiometric output make it a drop-in choice for ECU analog-input front-ends.
When designing in the MPX5100D, place 100 nF and 470 pF decoupling capacitors close to the supply pin to suppress switching noise from digital logic sharing the same 5 V rail. Tubes on the P1/P2 ports should be kept as short as possible and oriented vertically downward to avoid condensate pooling on the die. Designers targeting board-mounted applications should evaluate the surface-mount 8-pin SOIC option MPXV5100GC6U if a vertical (axial) port orientation is undesirable.
This page synthesizes distributor pricing, MPX5100 family cross-reference data and practical design notes not found in the manufacturer datasheet alone, helping engineers compare drop-in equivalents and choose the correct variant for tube-fed differential sensing, MAP-sensing or HVAC pressure-front-end designs.
Alternativas drop-in para MPX5100D — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MPX5100D (mesmo formato e footprint) — diferindo em Package, Output Type, Accuracy, Operating Temperature, Operating Pressure Range.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MPX5100DP
✅ Drop-In✓ Em estoque
$12.03 / unidade
Ver ficha técnica →MPX5100GP
✅ Drop-In✓ Em estoque
$12.03 / unidade
Ver ficha técnica →XGZP6873A-100KPGN
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MPX5100AP
✅ Drop-In✓ Em estoque
$12.03 / unidade
Ver ficha técnica →MPX5100D Classificações máximas e características elétricas
| Tipo de sensor | Piezoresistive Pressure Sensor (Differential) |
| Pressure Range | 0 kPa to 100 kPa (0 PSI to 14.5 PSI) |
| Pressure Type | Differential |
| Tensão de alimentação | 4.75 V to 5.25 V |
| Full-Scale Span | 45 mV/kPa typical |
| Tipo de saída | Analog Voltage, Ratiometric |
| Faixa de tensão de saída | 0.2 V (zero pressure) to 4.7 V (full-scale) |
| Accuracy | ±1.8 %VFSS maximum |
| Temperatura de operação | -40 °C to +125 °C |
| Pressure Port | Dual axial tube ports (Differential), 0.19 inch (4.93 mm) |
| Encapsulamento | 6-SIP Module (Case 867) |
| Tipo de montagem | Through-Hole |
| Status RoHS | Compliant |
| Reflow Compatible | No (through-hole module) |
| Media Compatibility | Non-corrosive dry gases (filtered dry air recommended) |
Configuração de pinos do MPX5100D
| Pino 1 | VCC — +5 V supply voltage (4.75 V to 5.25 V) |
| Pino 2 | GND — Ground return for sensor and analog output |
| Pino 3 | VOUT — Ratiometric analog output (0.2 V to 4.7 V) |
| Pino 4 | NC/Test — Unused in normal operation (factory test pin) |
| Pino 5 | NC — Not connected (per datasheet) |
| Pino 6 | NC — Not connected (per datasheet) |
Aplicações típicas
MPX5100D é adequado para 6 aplicaçãos: Engine Manifold Absolute Pressure (MAP) Sensing, HVAC Duct Pressure Monitoring, Medical Respiratory / CPAP Equipment, Barometric Air-Pressure / Altitude Reference, Industrial Process Control Loops, Fuel / Hydraulic Line Pressure Sensing.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPX5100D's 0–100 kPa differential range and 0.2–4.7 V ratiometric output translate cleanly to the standard 0–5 V MAP input channel on most engine control units, when the second port is referenced to sealed manifold vacuum. Piezoresistive sensing keeps response time fast enough to track throttle transients in turbocharged engines, while the on-chip temperature compensation holds accuracy across -40 °C to +125 °C under-hood thermal swings. For automotive AEC-Q100 production programs, the qualified variant of the MPX5100 family should be substituted; the MPX5100D remains appropriate for prototypes and off-road / industrial engines.
Recomendado
HVAC Duct Pressure Monitoring
Building automation controllers use the MPX5100D to measure static pressure across filters, fans, and variable-air-volume boxes in the 0–100 kPa range typical of commercial ductwork. The 45 mV/kPa sensitivity delivers 4.5 V full-scale swing at 100 kPa, mapping cleanly into a 10-bit 5 V ADC with sufficient resolution for filter-loading alarms and damper feedback. The dual axial port geometry is well suited to tube pickup on rectangular ductwork. Designers adding a 4–20 mA loop stage can use the MPX5100D's output as a low-impedance analog reference, with the XTR105 or XTR110 4–20 mA transmitter ICs referenced on the same analog rail.
Recomendado
Medical Respiratory / CPAP Equipment
Low-cost CPAP, BiPAP and ventilator prototypes use the MPX5100D in conjunction with flow-restriction tubing to derive continuous airway pressure feedback within the 0–100 kPa range. The device's ±1.8 %VFSS accuracy is well within the ±5 % error budget of typical respiratory circuits, and the analog output avoids firmware overhead compared to digital I²C pressure sensors that require a precision clock. The 6-SIP module ports accept standard 0.19 inch medical tubing for direct pneumatic connection. Production medical designs typically migrate to the MPXV7002DP or a dedicated digital sensor after prototyping; the MPX5100D is widely used in the proof-of-concept phase.
Recomendado
Barometric Air-Pressure / Altitude Reference
Weather stations, drone altimeters and GPS-augmented navigation use the MPX5100D with one port left open to ambient and the other sealed at manufacturing time, giving a differential-to-barometric reference. The ratiometric output remains accurate as long as the 5 V supply is regulated, because span and offset scale together with VCC. Piezoresistive sensors of this family also tend to drift less than 50 mbar/year after the first 100 hours of operation, when housed away from UV and humidity. The MPX5100D is therefore a cost-effective drop-in wherever a 0–100 kPa barometric update rate of 1 Hz or slower is acceptable; for higher-precision altimetry an MPL3115A digital sensor is preferred.
Recomendado
Industrial Process Control Loops
Process-control PLCs and panel meters accept the MPX5100D's 0.2–4.7 V analog output directly on a 0–5 V analog input module, with the differential measurement eliminating ground-loop noise from long pipe runs in chemical and water-treatment plants. The ±1.8 %VFSS accuracy combined with on-chip temperature compensation removes the requirement for periodic re-calibration in field-deployed cabinets. Designers building a 4–20 mA current loop from this output can pair the MPX5100D with an XTR105 or XTR110 transmitter for compliance with industrial 4–20 mA standards. The 6-SIP module's through-hole pins accept screw-terminal adapters for retrofit installations.
Recomendado
Fuel / Hydraulic Line Pressure Sensing
Diesel fuel-line monitoring, hydraulic ram pressure sensing and oil-pressure gauge retrofits all share the same 0–100 kPa differential window that the MPX5100D is calibrated for, making it a popular choice for aftermarket gauges and off-road machines. The differential topology allows direct comparison of upstream and downstream pressure taps to compute flow-derived blockage alarms. The 6-SIP tube-port geometry adapts to standard 4.93 mm pneumatic fittings used in hydraulic test rigs. For harsh under-hood thermal environments, the surface-mount MPXV5100GC6U surface-mount equivalent provides similar function without the axial-port constraint.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MPX5100D — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MPX5100DP | MPXV5100GC6U | MPX5100GP | XGZP6873A-100KPGN | MPX5100AP |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | CFSensor (third-party) | NXP Semiconductors |
| Package | 6-SIP Module (Case 867) | 6-SIP Module (Case 867) - same | SO-8 (8-SMD) | 6-SIP Module (Case 867) - same | 6-SIP Module - same | 6-SIP Module (Case 867) - same |
| Pressure Type | Differential | Differential | Differential | Gauge | Differential | Absolute |
| Pressure Range | 0–100 kPa (0–14.5 PSI) | 0–100 kPa (0–14.5 PSI) | 0–100 kPa (0–14.5 PSI) | 0–100 kPa (0–14.5 PSI) | 0–100 kPa | 0–100 kPa (0–14.5 PSI) |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 5 V (typical) | 4.75 V to 5.25 V |
| Output Range | 0.2 V to 4.7 V (ratiometric) | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V | 0.2 V to 4.7 V |
| Sensitivity | 45 mV/kPa typical | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa | 45 mV/kPa |
Principais diferenciais
- Differential topology at the lowest cost in the MPX5100 family (vs MPX5100GP)
- Through-hole 6-SIP with axial ports for tube-fed installs (vs MPXV5100GC6U)
- Pure analog output without digital clock overhead (vs BMP280 / MPL3115A2 digital pressure sensors)
Notas de projeto
Place a 100 nF ceramic decoupling capacitor as close as possible to pin 1 (VCC) and a parallel 470 pF high-frequency bypass to suppress switching noise from digital logic sharing the same 5 V rail. The MPX5100D is ratiometric, so any noise or ripple on VCC appears directly on the output; using a linear regulator (LP2985-5.0, LM7805) instead of a switching converter for the analog 5 V rail preserves the 4.5 V signal swing accuracy.
Keep pneumatic tubes on the dual axial pressure ports as short as practical and orient them vertically downward so condensate cannot pool on the sensing die. Add a small in-line particulate filter (typically 5 µm) ahead of each port if the media is unfiltered ambient air, water vapor or oil mist. For electrically noisy industrial enclosures, place a TVS diode across each port to ground to protect the die from voltage transients induced by long cable runs.
The output is an analog ratiometric signal with finite 5 kΩ source impedance; buffer the output with an op-amp (MCP6001, TLV2371) when driving a long cable, a slow ADC with a high-impedance input, or an RC low-pass filter. Estimated: a 10 kΩ + 100 nF RC network at the output gives a ~1 ms time constant suitable for HVAC pressure-loop control; for engine MAP sensing where bandwidth is critical, remove the filter and let the MCU ADC sample at ≥1 kSPS.
Do not apply pressure beyond 200 kPa (over-range) and do not allow liquid water to reach the sensing die; the MPX5100D is specified for non-corrosive dry gases only. Also, the MPX5100D is NOT AEC-Q100 qualified, so for automotive under-hood production use the AEC-Q100-graded variant of the MPX5100 family. The differential output at 0 kPa is 0.2 V minimum (not 0 V); reserve this offset in any software calibration routine.
Informações de conformidade
RoHS compliant per NXP product page. Not AEC-Q100 qualified; for automotive under-hood use, source the AEC-Q100 equivalent from the NXP MPX5100 family. Reach and conflict-mineral declarations available from NXP.
