Renesas HZU16B1TRF-E

Overview

HZU16B1TRF-E from Renesas Electronics is a silicon planar Zener diode designed for voltage stabilization in low-power analog and reference circuits, with a nominal Zener voltage of 16.94 V to 17.70 V at 5 mA test current, 40 mW dynamic resistance, and 200 mW power dissipation in the ultra-small URP (SC-76A) surface-mount package.

For engineers reviewing the HZU16B1TRF-E datasheet, HZU16B1TRF-E pinout, HZU16B1TRF-E application, or HZU16B1TRF-E equivalent, this device serves as a precision shunt regulator in power supply feedback paths, sensor biasing networks, and overvoltage protection circuits where tight voltage tolerance and thermal stability are required.

Technical Context

The HZU16B1TRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its specified Zener breakdown threshold. Its design targets low-noise, low-drift DC reference generation in space-constrained PCB layouts.

It features a temperature coefficient of approximately –0.04 %/°C (–6.8 mV/°C) near 16 V, enabling predictable drift compensation in temperature-sensitive applications. The device is rated for junction temperatures up to 150 °C and storage from –55 °C to +150 °C, supporting industrial-grade operation.

Key Specifications

Pinout & Package

Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 0.8 mm × 0.8 mm × 0.45 mm (max height), mass 0.004 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMSZ4687T1G and BZX84-C16LT1G, the HZU16B1TRF-E offers superior voltage accuracy (±2.2% vs. ±5%) and smallest PCB footprint (0.64 mm²), making it optimal for miniaturized, high-precision regulation where space and stability are critical.

Availability

HZU16B1TRF-E is available at Aetrix Electronics and suitable for power supply feedback, sensor biasing, overvoltage protection, and microcontroller reset circuits requiring stable component supply and consistent Zener voltage performance.

Supply support for HZU16B1TRF-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 headquartered in Japan, specializing in microcontrollers, analog and power devices, and advanced SoCs for industrial, automotive, and infrastructure markets.

The HZU Series belongs to Renesas' silicon planar Zener diode product line, engineered specifically for high-accuracy voltage stabilization in compact, surface-mount applications where thermal stability and tight voltage grading are essential.

FAQ

What is the Zener voltage range of the HZU16B1TRF-E?

The HZU16B1TRF-E has a guaranteed Zener voltage range of 16.94 V to 17.70 V when tested at 5 mA reverse current and 25 °C ambient temperature. This Grade B1 specification reflects ±2.2% tolerance around the nominal 16 V family point, ensuring predictable regulation behavior in precision reference designs. The HZU16B1TRF-E maintains this range under defined thermal and current conditions per Renesas R07DS0423EJ1000.

Does the HZU16B1TRF-E require a series current-limiting resistor?

Yes, the HZU16B1TRF-E must be used with an external series current-limiting resistor to control reverse current within its safe operating range. For stable regulation at 5 mA, the resistor value is calculated based on input voltage minus 17.3 V (typical V_Z) divided by 5 mA. The HZU16B1TRF-E does not include internal current regulation and relies on proper external biasing to avoid exceeding its 200 mW power dissipation limit.

What is the package type and size of the HZU16B1TRF-E?

The HZU16B1TRF-E uses the Ultra Small Resin Package (URP), also known as SC-76A, with dimensions of 0.8 mm × 0.8 mm × 0.45 mm (maximum height) and a mass of 0.004 g. Its two-terminal configuration places the cathode (pin 1) and anode (pin 2) on opposite ends of the rectangular body, marked with a cathode band. This package is optimized for high-density SMT assembly and matches JEITA standard SC-76A footprint requirements.

How does the temperature coefficient affect HZU16B1TRF-E performance?

The HZU16B1TRF-E exhibits a typical temperature coefficient of –0.04 %/°C (approximately –6.8 mV/°C) near its 16 V operating point, meaning its Zener voltage decreases slightly as temperature rises. This negative drift is well-characterized and predictable, allowing designers to compensate in systems requiring long-term voltage stability. The HZU16B1TRF-E's coefficient falls within the stable region shown in Figure 2 of its datasheet, avoiding the zero-TC crossover zone found in lower-voltage Zeners.

Is the HZU16B1TRF-E RoHS compliant and lead-free?

Yes, the HZU16B1TRF-E is RoHS compliant and lead-free, consistent with Renesas Electronics' environmental policy and the EU RoHS Directive. Its termination finish is matte tin, and all materials meet applicable restrictions on hazardous substances. Compliance is documented in Renesas' official product change notices and material declarations, and the device carries appropriate marking per JEDEC standards. The HZU16B1TRF-E is suitable for use in consumer, industrial, and commercial electronics requiring green manufacturing compliance.