The Model 1451 is a surface mount pressure sensor produced by Sunstar. It is suitable for altitude measurement, barometric pressure, medical instrumentation, consumer appliances, and tire pressure.
The Model 1451 is a surface‑mount piezoresistive silicon pressure sensor designed for high‑volume applications that require small size, low weight, low cost, and compatibility with automated assembly equipment. It is available with either gage or absolute pressure sensing chips mounted on a ceramic substrate, with interchangeable caps for different pressure ports.
Performance specifications include a supply voltage of 3 VDC, full‑scale output span of 30‑120 mV, pressure non‑linearity of ±0.25 % span, and a weight of only 0.3 g. The sensor operates over a temperature range of –40 °C to +125 °C and offers various pressure range options from 0‑5 psi up to 0‑500 psi.
| Supply Voltage | 3 VDC |
|---|---|
| Full Scale Output Span | 30‑120 mV |
| Pressure Non-linearity | ±0.25 % Span |
| Temperature Coefficient – Span | -0.20 %/°C |
| Output Noise | 1.0 µV p‑p |
| Weight | 0.3 g |
It requires a 3 VDC supply voltage.
The output noise is specified as 1.0 µV peak‑to‑peak.
The sensor weighs 0.3 g.