BZX84C4V3LT1G

Single Zener Diodes Overview

The BZX84C4V3LT1G is a single Zener diode from onsemi, housed in an SOT-23 surface-mount package. It provides voltage regulation with a nominal Zener voltage of 4.3 V and a tolerance of ±5%. The device features a maximum power dissipation of 250 mW at 25°C on FR-4 or FR-5 boards. Electrical characteristics include a maximum Zener impedance of 90 Ω at a test current of 5 mA and a maximum reverse leakage current of 3 µA at 1 V. The component operates within a junction temperature range of -65°C to +150°C.

Single Zener Diodes Feature Summary

• Designed for optimal automated board assembly in high-density applications
• Provides voltage regulation with minimum space requirement
• ESD rating of Class 3 (> 16 kV) per Human Body Model

Single Zener Diodes Applications

• Cellular phones
• Hand held portables
• High density PC boards

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details and compliance status. Ensure that the procurement channel sources genuine components directly from authorized distributors or the manufacturer to maintain reliability. Cross-reference the part number with the latest datasheet revisions to confirm electrical parameters match design requirements before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a standard 5% tolerance Zener voltage is required in a compact surface-mount form factor. The BZX84C series offers a broad voltage range suitable for general-purpose regulation tasks. Consider the thermal derating characteristics if operating above 25°C ambient temperature. Verify that the SOT-23 footprint aligns with the PCB layout constraints of the target application.

Single Zener Diodes Part Context

This device belongs to the BZX84CxxxLT1G series of Zener diodes manufactured by onsemi. The series is characterized by its small plastic SOT-23 package, which facilitates efficient use of board space. These devices are lead-free and RoHS compliant, meeting environmental standards for modern electronics manufacturing. The series includes various voltage options ranging from 2.4 V to 75 V.

Single Zener Diodes Replacement Considerations

Check for equivalent parts within the same BZX84C series or other manufacturers offering identical SOT-23 packages and 4.3 V Zener voltage specifications. Ensure any substitute matches the 250 mW power rating and ±5% tolerance. Verify pinout compatibility (Anode, No Connection, Cathode) and thermal resistance values to guarantee seamless integration without circuit redesign.