AZ23C47 RFG

Overview

The AZ23C47 RFG is a dual Zener diode array manufactured by Taiwan Semiconductor Corporation, housed in an SOT-23 surface-mount package. It features a common anode configuration with two independent Zener junctions sharing a single anode terminal. The nominal Zener voltage is specified at 47 V with a tolerance of ±5%. The device supports a maximum power dissipation of 300 mW and operates within a junction temperature range of -55°C to +150°C. Reverse leakage current is limited to 100 nA at 32 V, and the maximum Zener impedance is 100 Ohms.

Feature Summary

• Dual Zener diodes integrated into a single compact SOT-23 package for space-constrained designs.
• Common anode topology simplifies circuit layout and reduces component count.
• High thermal stability with a wide operating junction temperature range up to 150°C.

Applications

• Voltage reference circuits requiring stable dual supply rails.
• Transient voltage suppression in low-power signal lines.
• Clamping applications for protecting sensitive input stages.

Procurement Notes

Verify the specific suffix 'RFG' against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering quantity aligns with standard reel sizes provided by authorized distributors. Cross-reference the DigiKey part number 1801-AZ23C43RFGTR-ND family identifiers if sourcing from third-party platforms to ensure correct identification.

Selection Notes

Select this component when a dual Zener solution with a 47 V rating is required in a small outline transistor package. Confirm that the 300 mW power dissipation limit meets the thermal requirements of the target application. Verify that the ±5% voltage tolerance is sufficient for the intended precision level compared to tighter tolerance alternatives.

Part Context

This part belongs to the AZ23C series of dual Zener arrays from Taiwan Semiconductor. The series offers various voltage options within the same SOT-23 footprint, allowing designers to maintain consistent board layouts across different voltage requirements. The RFG suffix typically denotes specific tape and reel packaging configurations used in high-volume manufacturing.

Replacement Considerations

Direct replacements include other manufacturers' dual Zener arrays in SOT-23 packages with matching 47 V nominal voltage and common anode configuration. Verify pinout compatibility and power dissipation ratings before substitution. Check for equivalent reverse leakage and impedance specifications to ensure circuit performance parity.