24PCBFA6D Honeywell

Honeywell 24PC Series - Miniature Low Pressure Sensors: The 24PC SMT (Surface Mount Technology) Series pressure sensors provide a small, low cost, high value, pressure sensing solution for use with printed circuit boards (PCBs). Based on the long established reliability and accuracy of the 26PC pressure sensor, the 24PC SMT offers reduced size with true SMT capability. The smaller size reduces the sensor's footprint on the PCB, thereby reducing the size of the PCB. The 24PC SMT is designed to be used with other SMT components on a PCB, helping to lower installation costs and eliminate secondary operations. The sensor features Wheatstone bridge construction, silicon piezoresistive technology, and ratiometric output for proven application flexibility, design simplicity and ease of manufacture. Although designed for the medical industry, the 24PC SMT pressure sensor may be applied in almost any application that requires a surface mount pressure sensor. Each sensor contains four active piezoresistors that form a Wheatstone bridge. When pressure is applied, the resistance changes and the sensor provides a milliVolt output signal that is proportional to the input pressure. The low power 24PC sensors are designed to accommodate pressures from 0.5 psi to 250 psi and have an operating temperature range of -40 …C to 85 …C [-40 …F to 185 …F]. The 24PC sensors have the flexibility to be excited with constant current or constant voltage. When driven by constant current, the pressure sensor’s terminal voltage will rise with increasing temperature. The rise in voltage not only temperature compensates the span but also provides an indication of the sensor’s temperature. These sensors can accommodate a variety of wet and dry media that are compatible with polyphthalamide (PPA) plastics and media seals specified in the Nomenclature and Order Guide (see Figure 2). The 24PC sensors are RoHS compliant. They are designed and manufactured according to ISO 9001 standards. Features:

Wet/Wet capability (i.e., liquids on both ports)

Selectable seals available to match media used

Higher pressure ranges for use in high-pressure applications

Wide variety of pressure port types

Available in both SIP and DIP packages

Alignment pins for position accuracy

Small package size (less than one half the size of the 26PC) and compact surface mount profile

3,18 mm [0.125 in] diameter pick-up feature for use in pick and place machines

Maximum peak reflow temperature of 260 °C [500 °F]

Gage, vacuum gage, differential gage, wet/wet differential sensing available in one package

True wet/wet differential sensing

Proven elastomeric interconnections of the 20PC family

Temperature compensation

End point calibration

Sensor consists of only five components

Elastomeric construction

Wide operating temperature range of -40 °C to 85 °C [-40 °F to 185 °F] Applications:

CPAP (Continuous Positive Airway Pressure) equipment

Respirators and ventilators

Blood glucose monitors

Oxygen conservers

Oxygen concentrators

Nebulizers

Residential fuel cells

Soft drink dispensing