BZX84C30S-7

Overview

The BZX84C30S-7 is a dual surface mount Zener diode from Diodes Incorporated, housed in an SOT-363 package. It provides a nominal Zener voltage of 30V with a tolerance range of 28.0V to 32.0V at a test current of 2.0mA. The device features a maximum Zener impedance of 80Ω at IZT and 300Ω at IZK (0.5mA). Electrical characteristics include a maximum reverse current of 0.1µA at 21.0V and a temperature coefficient ranging from 24.4 to 29.4 mV/°C. It supports a power dissipation of 200mW and operates within a junction temperature range of -65°C to +150°C.

Feature Summary

• Planar die construction for reliable surface mount performance
• Ultra-small SOT-363 package design for space-constrained applications
• Lead-free and RoHS compliant manufacturing process

Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Clamping and protection stages in signal processing paths
• Biasing networks in portable electronic devices

Procurement Notes

Verify the complete part number includes the -7-F suffix for tape and reel packaging containing 3000 units per reel. Confirm the specific marking code KYB matches the required 30V specification during incoming inspection. Ensure storage conditions adhere to moisture sensitivity level 1 standards to prevent package damage during reflow soldering processes.

Selection Notes

Select this component when a precise 30V Zener voltage is needed in a compact dual-diode footprint. Consider the 2.0mA test current requirement for accurate biasing calculations. Evaluate the thermal resistance of 625°C/W against the expected ambient temperature and power dissipation limits to ensure safe operating junction temperatures under all load conditions.

Part Context

This part belongs to the BZX84C series of dual Zener diodes manufactured by Diodes Incorporated. The series covers voltages from 2.4V to 39V in the SOT-363 case. The BZX84C30S-7 specifically denotes the 30V variant with the standard reel packaging suffix. It shares mechanical and electrical family traits with adjacent voltage codes in the same datasheet revision.

Replacement Considerations

Direct substitutes must match the SOT-363 package, 30V nominal Zener voltage, and 200mW power rating. Verify that alternative components meet the same impedance and leakage current specifications. Check for identical marking codes or equivalent thermal characteristics if pinout compatibility is critical for the existing PCB layout.