AS432 1.24V Precision Adjustable Shunt Reference is a precision adjustable shunt reference from Ptcc company. It has temperature compensation, 0.25% to 2.0% bandgap, internal amplifier with 150mA capability, multiple temperature ranges, low frequency dynamic output impedance less than 150mΩ, low output noise.
The AS432 is a three‑terminal adjustable shunt regulator that uses an accurate 1.24 V bandgap reference. It offers temperature‑compensated performance (50 ppm/°C) and a low output noise design, making it suitable for low‑voltage and power‑electronics applications.
The device is available in several package styles (TO‑92, SOIC‑8, SOT‑89, SOT‑23) and supports a wide temperature range (‑55 °C to 125 °C). Key specifications include a 150 mA internal amplifier, 18 V reverse breakdown, and up to 1 A forward current.
| Reference Voltage | 1.24 V |
|---|---|
| Temperature Coefficient | 50 ppm/°C |
| Bandgap Tolerance | 0.25 % to 2.0 % |
| Internal Amplifier Current Capability | 150 mA |
| Cathode‑Anode Reverse Breakdown | 18 V |
| Anode‑Cathode Forward Current | 1 A |
| Reference Input Current | 1 mA |
| Continuous Power (TO‑92) | 775 mW |
| Junction Temperature Max | 150 °C |
| Storage Temperature Range | -65 °C to 150 °C |
| Lead (Soldering) Temperature | 300 °C |
The AS432 provides a 1.24 V precision adjustable shunt reference.
The cathode‑anode reverse breakdown rating is 18 V.