AZ23C20-7-G

Overview

The AZ23C20-7-G is a dual common anode Zener diode array manufactured by Diodes Incorporated. It features two independent Zener diodes sharing a common anode terminal within a single SOT-23-3 surface-mount package. The nominal Zener voltage is specified at 20 V with a tolerance of ±5%. Each diode supports a maximum power dissipation of 300 mW and operates over a temperature range from -65°C to +150°C. The device exhibits a Zener impedance of 80 Ohms maximum and a voltage temperature coefficient of 0.09 %/°C. It is designed for compact circuit board layouts requiring precise voltage reference or protection functions.

Feature Summary

• Dual common anode configuration integrates two Zener diodes into a single compact footprint.
• Surface-mount SOT-23-3 packaging enables automated assembly and space-constrained designs.
• Wide operating temperature range ensures reliability in extreme environmental conditions.

Applications

• Voltage clamping and protection in signal lines
• Reference voltage generation in low-power circuits
• Transient voltage suppression in consumer electronics

Procurement Notes

Verify the specific suffix '-G' against the manufacturer's current datasheet to confirm RoHS compliance status, as suffixes often denote environmental certifications. Confirm availability through authorized distributors, noting that this specific variant may have limited stock or be subject to obsolescence notices compared to standard suffixes like '-7-F'. Request batch traceability documents upon order confirmation.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in a small form factor. Ensure the 20 V breakdown voltage aligns with the target circuit's clipping requirements. Verify that the 300 mW power rating suffices for the expected peak pulse currents. Compare the 80 Ohm impedance against load line calculations to ensure stable regulation under varying current conditions.

Part Context

This part belongs to the AZ23C series of dual Zener arrays from Diodes Incorporated. The series offers various voltage options in standardized packages like SOT-23-3 and SOT-323. The '-G' suffix typically indicates a lead-free and halogen-free compliant version, distinguishing it from older non-compliant variants within the same electrical specification family.

Replacement Considerations

Direct substitutes include other AZ23C20 variants such as AZ23C20-7-F if environmental compliance differences are acceptable. Cross-manufacturer equivalents in SOT-23-3 with 20V dual common anode configurations should be evaluated for pin compatibility and thermal performance.