The MPn-5 semiconductor propane sensor adopts a multi-layer thick-film manufacturing process. A heating electrode, measuring electrode and metal oxide semiconductor gas-sensitive layer are integrated on an Al2O3 ceramic substrate and encapsulated in a metal housing.

When propane is present in the ambient air, the conductivity of the sensing material changes with gas concentration. This conductivity change can be converted into an electrical output signal through a simple measurement circuit.

MPn-5 provides high sensitivity to C3H8, excellent stability and enhanced resistance to common interfering gases. The sensor has achieved UL 2075 certification and is designed for a service life of up to 10 years, supporting OEM manufacturers developing residential, commercial and industrial combustible gas detection products.

Application

Propane gas leak alarms
Liquefied gas leak monitoring devices
Combustible gas detectors
Residential gas leak detectors
Commercial gas leak detectors
Factory gas leak detection systems
Home fire and safety detection systems
Commercial fire and safety detection systems
Gas leak alarms
OEM propane detectors
OEM combustible gas detection products

Features

UL 2075 certified
Up to 10-year service life
High sensitivity to C3H8
Excellent anti-interference ability
Excellent long-term stability
Enhanced resistance to common household interferents
Reduced cross-sensitivity to alcohol
Designed to reduce interference from cooking vapors
Designed to reduce interference caused by humidity changes
Multi-layer thick-film manufacturing process
Metal oxide semiconductor sensing technology
Compact metal-cap package
Suitable for OEM gas detector integration
In-house control of core materials and manufacturing processes
Stable product quality
Stable supply and lead-time support

Specifications

Model	MPn-5
Sensor Type	Flat Surfaced
Standard Encapsulation	Metal Cap
Target Gas	Liquefied Gas / C3H8
Detection Range	0～5250ppm
Loop Voltage (Vc)	≤24V DC
Heater Voltage (VH)	5V±0.1V AC or DC
Load Resistance (RL)	Adjustable
Heater Consumption (PH)	305±25mW
Heater Current (IH)	61±5mA
Sensitive Resistance (RS)	1kΩ～20kΩ (in 2000ppm C3H8)
Sensitivity (S)	Rs(in air) / Rs(in 2000ppm C3H8) ≥8
Concentration Slope (α)	≤0.6 (R2000ppm / R500ppm C3H8)
Standard Test Temperature / Humidity	20℃±2℃; 55%±5%RH
Standard Test Circuit	Vc: 5V±0.1V; VH: 5V±0.1V
Preheat Time	Not less than 48 hours
O2 Content	21% (not less than 18%)
Lifespan	10 Years
Certification	UL 2075

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

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