Diodes Incorporated BZX84C6V8S-7

Overview

BZX84C6V8S-7 from Diodes Incorporated is a dual 200 mW surface-mount Zener diode in SOT-363 package, rated for nominal 6.8 V zener voltage (6.4–7.2 V range at 5 mA), with 15 Ω dynamic impedance at test current and 2.0 µA max reverse leakage at 4.0 V. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.

For engineers reviewing the BZX84C6V8S-7 datasheet, BZX84C6V8S-7 pinout, BZX84C6V8S-7 application, or BZX84C6V8S-7 equivalent, key selection factors include zener voltage tolerance, thermal resistance (625 °C/W), low-capacitance operation (<10 pF), and RoHS-compliant lead-free plating suitable for high-density PCB layouts.

Technical Context

This dual-element Zener diode integrates two independent 6.8 V zener junctions in a single SOT-363 package, sharing no internal connection - each anode-cathode pair operates independently. Its planar die construction ensures stable breakdown characteristics across -65 °C to +150 °C operating temperature range.

Designed for low-power regulation and voltage clamping, it delivers 6.8 V regulation at 5 mA test current with ±0.4 V tolerance, 15 Ω zener impedance at 5 mA, and <2.0 µA reverse current at 4.0 V, enabling use in battery-powered sensor interfaces and I/O protection circuits where minimal leakage and tight voltage control are critical.

Key Specifications

Pinout & Package

SOT-363 package with six terminals: two isolated Zener diode elements (C1/A1 and C2/A2), plus two NC (no-connect) pins. Molded plastic case meets UL 94V-0 flammability rating; moisture sensitivity level 1.

Key Features

Applications

Availability

BZX84C6V8S-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB port ESD clamp, and low-power IoT node voltage monitor applications requiring stable component supply and full RoHS compliance.

Supply support for BZX84C6V8S-7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for voltage regulation and clamping in space-constrained, low-power applications where stability, low leakage, and thermal robustness are essential.

FAQ

What is the maximum power dissipation for BZX84C6V8S-7 under standard PCB conditions?

The BZX84C6V8S-7 is rated for 200 mW power dissipation when mounted on an FR4 printed circuit board using Diodes Incorporated's recommended pad layout. This rating assumes still air ambient conditions and accounts for thermal resistance of 625 °C/W. Derating is required above 25 °C ambient per the published power derating curve.

How are the two Zener diodes configured inside the SOT-363 package?

The two Zener diodes in the BZX84C6V8S-7 are fully independent - C1/A1 forms one anode-cathode pair, and C2/A2 forms the second. There is no internal connection between them. The two NC pins are unconnected. This allows separate voltage clamping or referencing on two distinct circuit nodes.

Does BZX84C6V8S-7 meet lead-free and RoHS requirements?

Yes. The BZX84C6V8S-7 uses matte tin plating over an Alloy 42 leadframe and contains no intentionally added lead. It complies with EU RoHS Directive 2011/65/EU and is classified as a "Green" device per Diodes Incorporated's environmental policy, using halogen-free molding compound for date codes UO (2007 week 40) and newer.

What is the typical zener impedance at 1 mA, and how does it compare to the 5 mA value?

While the datasheet specifies 15 Ω zener impedance (Z_ZT) at 5 mA test current, impedance rises significantly at lower currents: at 1 mA, typical Z_ZK is 80 Ω. This reflects higher dynamic resistance near knee voltage and must be considered when designing for low-current regulation or precision clamping below 2 mA.