Renesas HZ16-1L-E

Overview

HZ16-1L-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 15.6 V (min 15.3 V, max 15.9 V), dynamic resistance of 14.0 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - used in stabilized power supplies and reference circuits.

For engineers reviewing the HZ16-1L-E datasheet, HZ16-1L-E pinout, HZ16-1L-E application, or HZ16-1L-E equivalent, key selection criteria include zener voltage tolerance, low-noise performance versus standard HZ series, DO-35 package compatibility, thermal derating behavior above 25°C, and suitability for low-current (<1 mA) precision biasing.

Technical Context

The HZ16-1L-E operates as a two-terminal voltage reference device with DC-tested zener characteristics, employing silicon planar construction to achieve reduced noise (≈1/3–1/10 of standard HZ series) and low leakage current. Its zener voltage exhibits a temperature coefficient near zero crossing in the 15–16 V range, confirmed by Figure 2 of REJ03G0182-0300.

It is rated for 400 mW power dissipation at 25°C ambient, with linear derating to zero at 175°C junction temperature, and is specified only under DC test conditions - no AC or transient impedance data is provided. The device lacks integrated temperature compensation or active circuitry; regulation relies solely on intrinsic zener breakdown physics.

Key Specifications

Pinout & Package

Package: DO-35 glass axial leaded package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band, 2.0 mm diameter × 26.0 mm length, 0.13 g mass.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode voltage reference applications.

Compared with 1N4744A and BZX84-C15, the HZ16-1L-E delivers verified low-noise performance in a compact DO-35 package with tighter voltage tolerance and lower dynamic resistance - making it preferred for analog signal conditioning where reference integrity directly impacts system accuracy.

Availability

HZ16-1L-E is available at Aetrix Electronics and suitable for stabilized power supplies, precision analog references, low-noise audio biasing, and industrial sensor excitation requiring stable component supply and long-term obsolescence management.

Supply support for HZ16-1L-E 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

Renesas Electronics is a global semiconductor manufacturer specializing in microcontrollers, analog and power devices, and advanced SoCs for automotive, industrial, and infrastructure markets.

The HZ-L Series is part of Renesas' discrete analog portfolio, designed specifically for low-noise, high-stability voltage reference applications in precision instrumentation and signal conditioning circuits.

FAQ

What is the exact zener voltage range for HZ16-1L-E?

The HZ16-1L-E has a guaranteed zener voltage range of 15.3 V minimum to 15.9 V maximum when tested at I_Z = 0.5 mA and T_a = 25°C, per REJ03G0182-0300 Rev.3.00 page 3. This 0.6 V spread reflects a ±1.9% tolerance around the nominal 15.6 V rating, and the value is DC-tested only - no AC or frequency-dependent variation is specified for the HZ16-1L-E.

Is HZ16-1L-E suitable for surface-mount assembly?

No, the HZ16-1L-E uses a through-hole DO-35 axial package with 2.0 mm diameter and 26.0 mm body length, intended for manual or wave soldering. It is not compatible with reflow or pick-and-place processes. For SMT alternatives, consider BZX84-C15 or MMBZ5245B - but note these lack the documented low-noise advantage and tighter tolerance of the HZ16-1L-E.

Does HZ16-1L-E have a specified temperature coefficient?

Yes - Figure 2 in REJ03G0182-0300 shows the zener voltage temperature coefficient (γ_Z) crosses zero near 15–16 V, indicating minimal drift over temperature for the HZ16-1L-E. While no single numeric γ_Z is tabulated for this variant, its position in the curve confirms superior thermal stability compared to lower- or higher-voltage HZ-L parts, which exhibit ±0.04%/°C or greater drift.

What is the maximum reverse leakage current for HZ16-1L-E?

The HZ16-1L-E specifies a maximum reverse leakage current (I_R) of 1 μA at V_R = 12.0 V and T_a = 25°C, per page 3 of REJ03G0182-0300. This low leakage supports use in high-impedance circuits such as electrometer inputs or CMOS bias networks where even nanoamp-level currents would cause significant error - a key differentiator from general-purpose Zeners.

Can HZ16-1L-E replace standard HZ-series Zeners directly?

Yes - the HZ16-1L-E shares identical DO-35 packaging, pinout, and mechanical dimensions with legacy HZ-series diodes, enabling drop-in replacement. However, its significantly lower noise (1/3–1/10 of HZ series) and tighter voltage tolerance deliver measurable performance gains in noise-sensitive applications; no circuit modification is needed to realize these benefits in existing HZ-compatible designs.