NEXPERIA BZV55-B6V8

Product summary BZV55-B6V8 Zener Diode by Good-Ark Semiconductor

The BZV55-B6V8 from Good-Ark Semiconductor is a silicon planar power Zener diode specifically designed for reliable voltage regulation in compact, space-constrained electronic assemblies. With a nominal Zener voltage of 6.8 V and maximum power dissipation up to 500 mW, this device is a highly useful component for engineers seeking robust and precise voltage reference and clamping functions. Housed in a MiniMELF (SOD-80) surface-mount package, the BZV55-B6V8 is engineered to perform as a low voltage stabilizer or voltage reference across a variety of industries, including consumer electronics, industrial controls, and instrumentation.

Main attributes of BZV55-B6V8 Zener Diode

The BZV55-B6V8 incorporates several technical features tailored to the demands of modern engineering applications:

Silicon planar technology ensures not only stable operation but also high reliability in thermal cycling environments.

Zener voltages for the BZV55 series are rigorously sorted according to the international E24 standard, making integration straightforward for designs based on standardized voltage levels.

Tight voltage tolerances are available, with the BZV55-B6V8 itself featuring a ±2% tolerance, and the series offering ±1% and other tolerance options by request—an essential parameter for applications needing repeatable reference performance.

The glass encapsulation in the MiniMELF (SOD-80) format provides robust mechanical protection and environmental shielding.

The device supports a broad Zener voltage range (2.4 V to 75 V within the BZV55 series), though the BZV55-B6V8 is specifically rated for 6.8 V.

A color-coded cathode band (blue) simplifies visual identification during board assembly or inspection.

Structural features and casing of BZV55-B6V8

The BZV55-B6V8 leverages the MiniMELF (SOD-80) glass package, a well-established choice for SMD Zener diodes in high-density PCB layouts. The device’s package weighs approximately 0.05 grams, aiding in the minimization of overall product mass—an important consideration in portable or weight-sensitive designs. The construction provides both mechanical stability and electrical insulation, ensuring that the diode maintains performance even in environments subject to mechanical stress or vibration.

Maximum limits and heat dissipation properties of BZV55-B6V8

Understanding the thermal and absolute maximum ratings is essential for engineers aiming to maximize reliability:

The BZV55-B6V8 is rated for maximum power dissipation of 500 mW when mounted on a standard ceramic substrate (10 mm × 10 mm × 0.6 mm) at an ambient temperature of 25°C.

The junction temperature can reach up to 150°C, supporting operation in demanding environments, provided proper thermal management and PCB layout considerations are in place.

The electrical characteristics are valid as long as the leads are maintained at ambient temperature, consistent with best practices for SMD device mounting.

Electrical specifications of BZV55-B6V8

Critical electrical parameters supplied under standard test conditions guide precise device selection:

Nominal Zener voltage of 6.8 V at a test current of 2.0 mA, with a ±2% tolerance, ensures reliable voltage reference and regulation.

The maximum forward voltage is specified at 0.9 V when conducting 10 mA forward current, indicating low conduction losses in practice.

Temperature stability and dynamic resistance parameters are available, supporting robust circuit design to mitigate voltage drift and noise sensitivity.

The device’s capacitance and dynamic resistance versus current and voltage characteristics are defined by the manufacturer, supporting predictable behavior in analog and digital circuits.

Thermal resistance, temperature dependence of the Zener voltage, and transition behavior from turn-on to thermal equilibrium are all characterized, enabling optimized design for both steady-state and pulsed-load conditions.

Use cases and design recommendations for BZV55-B6V8

From an engineering perspective, deploying the BZV55-B6V8 in a modern application requires several aspects to be considered:

Its space-saving MiniMELF SOD-80 form factor is ideal for densely populated PCBs where surface-mount technology is preferred.

The 6.8 V nominal voltage fits classic uses such as reference voltage sources in analog-to-digital conversion, low-voltage clamping for power rails, and transient suppression.

Stringent ±2% voltage tolerance makes the BZV55-B6V8 suitable for designs with narrow operating margins or where calibration trim need to be minimized.

The BZV55-B6V8’s operating range and robust thermal performance enable its use in both consumer and industrial settings, provided proper PCB thermal layout is ensured.

Its dynamic and thermal characteristics should be matched to both the electrical and environmental demands of the end application for optimal long-term reliability.

Possible substitute or alternative models for BZV55-B6V8

For engineers evaluating drop-in alternatives or sourcing replacement options for the BZV55-B6V8, several industry-standard Zener diodes offer similar electrical specifications and package compatibility. Notable equivalents include devices in the 1N5985B and BZX55 series from other reputable manufacturers, provided the same nominal voltage (6.8 V), tolerance, power rating (0.5 W), and SOD-80 (MiniMELF) footprint are matched. Always verify absolute ratings and specific parametric tolerances to ensure seamless interchangeability in end systems.

Conclusion

The BZV55-B6V8 from Good-Ark Semiconductor is a high-precision, rugged Zener diode solution for design engineers and component buyers focused on achieving both electrical accuracy and space efficiency. Its combination of standardized voltage grading, consistent ±2% tolerance, and durable MiniMELF package makes it a compelling choice for voltage regulation, clamping, and reference applications in a wide array of electronic systems. By considering the specific ratings, thermal constraints, and potential alternatives, engineers can confidently integrate the BZV55-B6V8 into new and existing designs requiring stable, reliable voltage control.