Nexperia USA Inc. NZH6V8B,115

Overview

NZH6V8B,115 from Nexperia is a single Zener diode in SOD123F package, designed for precision voltage regulation and reference functions in low-power analog circuits. It delivers a nominal Zener voltage of 6.8 V at 20 mA, with differential resistance ≤150 Ω, reverse current ≤2 μA at 5 V, and total power dissipation up to 500 mW (FR4 PCB) or 1 W (ceramic PCB). It is AEC-Q101 qualified for automotive-grade reliability.

For engineers reviewing the NZH6V8B,115 datasheet, NZH6V8B,115 pinout, NZH6V8B,115 application, or NZH6V8B,115 equivalent, key selection criteria include Zener voltage tolerance (±5%), low rdif for stable regulation, thermal resistance (250 K/W on FR4), and SOD123F footprint compatibility with high-density PCB layouts.

Technical Context

This Zener diode operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load or input conditions via controlled reverse breakdown. Its design centers on tight VZ tolerance (6.49–6.83 V), low dynamic impedance (150 Ω max at IZ = 20 mA), and low capacitance (200 pF at 1 MHz, VR = 0 V).

Thermal performance is defined by junction-to-ambient resistance (250 K/W on FR4), junction-to-solder-point resistance (125 K/W on ceramic), and maximum junction temperature (150 °C). It supports continuous forward current up to 250 mA and reverse leakage <2 μA at 5 V - critical for low-power biasing and sensing applications.

Key Specifications

Pinout & Package

The NZH6V8B,115 is housed in a SOD123F surface-mount plastic package (3.6 × 2.7 × 1.2 mm), featuring flat leads optimized for reflow soldering and high-density placement. The cathode is marked by a bar on the device body.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Compared with BZX84-C6V8,215, NZH6V8B,115 offers higher power capability and better thermal robustness on FR4; versus MMBZ5235B-7-F, it trades slightly higher rdif for guaranteed automotive qualification and superior long-term reliability in harsh environments.

Availability

NZH6V8B,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply with full traceability and lifecycle management.

Supply support for NZH6V8B,115 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

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions with emphasis on reliability and sustainability.

The NZH series targets automotive and industrial Zener regulation needs - engineered for AEC-Q101 compliance, low thermal resistance, and consistent parametric performance across temperature extremes.

FAQ

What is the maximum continuous reverse current the NZH6V8B,115 can handle before degradation?

The device supports continuous Zener current up to 20 mA at its rated VZ, with absolute maximum reverse current limited to 250 mA per limiting values table. However, sustained operation above 20 mA requires derating based on thermal resistance (250 K/W on FR4) and ambient temperature to avoid exceeding 150 °C junction temperature.

Can NZH6V8B,115 be used in forward conduction mode like a standard diode?

Yes - its forward voltage is specified ≤0.9 V at 10 mA, and it supports up to 250 mA forward current. It is commonly used in dual-role applications such as reverse-polarity protection combined with voltage clamping, though its primary design intent remains Zener regulation in reverse bias.

How does the SOD123F package affect thermal performance compared to SOD323 or DO-35?

SOD123F provides 2× the thermal pad area of SOD323 and 30% lower Rth(j-a) than DO-35 on FR4, enabling 500 mW dissipation vs. 300 mW (SOD323) or 400 mW (DO-35). Its flat lead geometry also improves solder joint reliability during thermal cycling in automotive applications.

Is the 6.8 V Zener voltage specified at DC or pulsed conditions?

The nominal 6.49–6.83 V range is measured at DC IZ = 20 mA per Table 8. Pulse testing (tp ≤ 300 μs, δ ≤ 0.02) applies only to VF and Ptot limits - VZ characterization is performed under steady-state DC conditions at Tj = 25 °C unless otherwise noted.