AZ23C6V8-E3-18

Overview

The AZ23C6V8-E3-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a common anode configuration with two integrated diodes housed in a surface-mount SOT-23 package. The nominal Zener voltage is 6.8 V, with a standard tolerance of ±5%. Electrical characteristics include a maximum dynamic resistance of 8 Ω at a test current of 5 mA and a reverse leakage current of 2 μA maximum at 3 V. The device supports a power dissipation of up to 300 mW on an FR-4 board and operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Common anode dual-diode configuration for space-efficient circuit designs
• ESD protection capability exceeding 8 kV via human body model and 800 V via machine model
• RoHS-compliant commercial grade construction

Applications

• Voltage reference circuits requiring dual independent references from a single component
• Clamping and protection stages in signal processing paths
• Biasing networks in low-power electronic systems

Procurement Notes

Verify the specific ordering code suffix against project requirements before procurement. The '-18' suffix indicates taped units per reel in quantities of 10,000 on an 8 mm tape wound on a 13-inch reel. Confirm that the standard commercial grade meets environmental specifications, as automotive-grade variants utilize different suffixes. Ensure compatibility with automated pick-and-place equipment utilizing the SOT-23 footprint.

Selection Notes

Select this component when a dual-channel voltage regulation or clamping function is required in a minimal footprint. The 6.8 V nominal rating suits applications needing precise mid-range voltage references. Consider the ±5% tolerance for general-purpose uses; tighter tolerances require the 'B' variant. Evaluate thermal management needs based on the 300 mW dissipation limit on standard PCBs versus the higher 500 mW limit on leads alone.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes, which offers a wide range of graded voltages from 2.2 V to 75 V according to the E24 standard. The series provides options for both commercial and AEC-Q101 qualified automotive grades. Packaging varies between 3,000 units on 7-inch reels and 10,000 units on 13-inch reels, accommodating diverse manufacturing line configurations.

Replacement Considerations

AZ23C6V8-E3-08: Identical electrical specifications but packaged in 3,000-unit quantities on 7-inch reels.

FAQ

What is the difference between the 'C' and 'B' designators in the part number?

The 'C' designator indicates a standard Zener voltage tolerance of ±5%, while replacing it with 'B' specifies a tighter tolerance of ±2%.

Does the AZ23C6V8-E3-18 meet automotive qualification standards?

No, the base P/N-E3 represents the commercial grade. Automotive qualification requires the HE3_A suffix, indicating AEC-Q101 compliance.

How does the packaging format affect the physical dimensions?

The '-18' suffix denotes 10,000 units per reel on an 8 mm tape wound on a 13-inch reel, whereas the '-08' suffix denotes 3,000 units on a 7-inch reel.