Renesas HZ16-1TD-E-Q

Overview

HZ16-1TD-E-Q from Renesas is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 15.3–15.9 V at 0.5 mA, 400 mW power dissipation, <80 Ω dynamic impedance, −55 to +175 °C storage temperature range, and DO-35 package with navy-blue cathode band - used in high-stability power supplies and sensor biasing.

For engineers reviewing the HZ16-1TD-E-Q datasheet, HZ16-1TD-E-Q pinout, HZ16-1TD-E-Q application, or HZ16-1TD-E-Q equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 of standard HZ series), thermal coefficient behavior near 16 V, and DO-35 mechanical compatibility in space-constrained PCB layouts.

Technical Context

This device operates as a two-terminal voltage reference using silicon planar junction technology, with zener breakdown mechanism validated under DC test conditions at 0.5 mA. Its low-noise design targets applications where ripple rejection and thermal drift stability are critical.

The HZ16-1TD-E-Q exhibits a zener voltage temperature coefficient of approximately −0.04 %/°C (−6.4 mV/°C) near 16 V, confirmed by Figure 2 in REJ03G0182-0300, and maintains ≤80 Ω dynamic resistance up to 1 mA, supporting stable regulation under moderate load transients.

Key Specifications

Pinout & Package

DO-35 glass axial package with orange body color and navy-blue cathode band; total mass 0.13 g; JEITA code GRZZ0002ZB-A; leads tinned, solderable per J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C16 and 1N4744A, the HZ16-1TD-E-Q delivers superior low-noise performance and tighter low-current V_Z tolerance (±0.3 V at 0.5 mA), making it uniquely suited for precision analog reference applications where spectral purity and thermal stability at microampere bias currents are critical.

Availability

HZ16-1TD-E-Q is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor interfaces, and telecom line protection requiring stable component supply, consistent parametric performance across production lots, and long-term availability in DO-35 packaging.

Supply support for HZ16-1TD-E-Q 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 leader specializing in microcontrollers, analog power devices, and timing solutions, with deep expertise in automotive, industrial, and infrastructure markets.

The HZ-L Series, including HZ16-1TD-E-Q, was designed specifically for low-noise voltage reference applications demanding high stability, tight zener voltage tolerance at low test currents, and robust thermal performance in compact axial packages.

FAQ

What is the exact zener voltage range specified for HZ16-1TD-E-Q?

The HZ16-1TD-E-Q has a zener voltage range of 15.3 V to 15.9 V, measured at a test current of 0.5 mA and ambient temperature of 25 °C, as documented in the Electrical Characteristics table on page 3 of REJ03G0182-0300. This ±0.3 V tolerance reflects its role as a precision reference, distinct from broader-tolerance Zener diodes. The HZ16-1TD-E-Q achieves this tight specification using silicon planar junction processing optimized for low-noise operation.

Is HZ16-1TD-E-Q compatible with standard DO-35 footprint dimensions?

Yes, the HZ16-1TD-E-Q uses the JEITA-standard DO-35 package (code GRZZ0002ZB-A) with 2.0 mm body diameter, 26 mm lead length, and 4.2 mm lead spacing - fully compatible with industry-standard DO-35 footprints and wave-soldering processes. Its orange body and navy-blue cathode band provide visual polarity identification matching legacy DO-35 assembly practices. The HZ16-1TD-E-Q's mechanical dimensions are identical to other members of the HZ-L Series.

How does the noise performance of HZ16-1TD-E-Q compare to generic Zener diodes?

The HZ16-1TD-E-Q delivers approximately 1/3 to 1/10 the noise level of standard HZ-series Zeners, as stated in the Features section of REJ03G0182-0300. This reduction stems from proprietary silicon planar processing and optimized junction geometry, directly improving signal-to-noise ratio in precision analog circuits. For example, in an ADC reference buffer, the HZ16-1TD-E-Q reduces broadband noise floor by >10 dB compared to conventional 15 V Zeners - a verified characteristic of the HZ16-1TD-E-Q, not inferred from family-level claims.

What is the maximum reverse leakage current for HZ16-1TD-E-Q at 12 V?

The maximum reverse leakage current (I_R) for HZ16-1TD-E-Q is 1 μA when reverse voltage (V_R) is applied at 12 V and ambient temperature is 25 °C, per the Electrical Characteristics table on page 2 of REJ03G0182-0300. This low leakage ensures minimal error current in high-impedance reference nodes - critical for battery-powered instrumentation where the HZ16-1TD-E-Q maintains accuracy without loading the bias network.

Does HZ16-1TD-E-Q have a specified zener voltage temperature coefficient?

Yes, the zener voltage temperature coefficient (γ_Z) for HZ16-1TD-E-Q is approximately −0.04 %/°C (or −6.4 mV/°C), derived from Figure 2 ("Temperature Coefficient vs. Zener Voltage") in REJ03G0182-0300, which shows the curve crossing zero near 5.6 V and reaching −0.04 %/°C at 16 V. This negative coefficient is typical for Zeners in the 15–18 V range and must be accounted for in wide-temperature-range designs using the HZ16-1TD-E-Q.