Renesas HZK16JTR

Overview

HZK16JTR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power DC supply rails. It delivers a nominal zener voltage of 16 V (min 15.3 V, max 17.1 V) at 5 mA test current, with dynamic resistance of 45 Ω, 500 mW power dissipation, and operates within –55°C to +175°C storage temperature range. It is used in precision reference circuits and feedback loops of linear regulators.

For engineers reviewing the HZK16JTR datasheet, HZK16JTR pinout, HZK16JTR application, or HZK16JTR equivalent, key selection criteria include zener voltage tolerance (±5.6% at 16 V), low leakage (<1 µA at 12 V), thermal coefficient (≈+5.5 mV/°C), LLD surface-mount package compatibility, and compliance with Renesas Standard-grade quality for industrial and consumer electronics.

Technical Context

The HZK16JTR employs a silicon epitaxial planar junction structure optimized for stable reverse-breakdown behavior under DC bias. Its zener voltage is specified at 5 mA test current with dynamic resistance measured at the same condition, ensuring predictable regulation performance in shunt configurations.

Designed for operation within a 25°C ambient baseline, its zener voltage exhibits a positive temperature coefficient (~+5.5 mV/°C), making it suitable for temperature-compensated references when paired with negative-TC components. The device is rated for 500 mW dissipation on PCB mounting and supports continuous operation up to 175°C junction temperature.

Key Specifications

Pinout & Package

LLD package: cylindrical glass-passivated chip with two terminals, no leads. Cathode identified by color band; anode is unmarked end. Mounts directly onto PCB pads with solder reflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX55C16 and MMSZ5245B, the HZK16JTR offers balanced performance: identical power rating to BZX55C16 but in compact LLD form, and higher power headroom than MMSZ5245B while maintaining competitive dynamic resistance and tolerance-making it optimal for space-constrained industrial regulators requiring 500 mW capability.

Availability

HZK16JTR is available at Aetrix Electronics and suitable for industrial control systems, consumer power adapters, and sensor interface modules requiring stable component supply and RoHS-compliant passive regulation elements.

Supply support for HZK16JTR 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 Corporation is a Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.

The HZK Series was developed as a family of precision silicon Zener diodes targeting cost-effective, high-reliability voltage stabilization in consumer, office, and industrial equipment-emphasizing tight tolerances, low leakage, and surface-mount compatibility.

FAQ

What is the zener voltage tolerance of HZK16JTR?

The HZK16JTR has a zener voltage range of 15.3 V to 17.1 V at 5 mA test current, corresponding to a ±5.6% tolerance around the nominal 16 V rating. This tolerance is confirmed in the Renesas Electrical Characteristics table on page 3 of the HZK Series datasheet Rev.3.00. The HZK16JTR does not specify grade suffixes (A/B/C) like earlier series variants, so this range applies directly to the HZK16JTR part number.

Is HZK16JTR RoHS compliant?

Yes, HZK16JTR is RoHS compliant per Renesas' environmental policy stated in the datasheet's Note 10, which requires adherence to the EU RoHS Directive and controlled substances regulations. Renesas confirms RoHS compliance for all Standard-grade products unless otherwise noted, and the HZK16JTR falls under the Standard quality grade per datasheet Section 7. No exemption codes or non-compliant materials are associated with the HZK16JTR.

What is the thermal coefficient of HZK16JTR?

The HZK16JTR exhibits a positive zener voltage temperature coefficient of approximately +5.5 mV/°C, as derived from Figure 2 ("Temperature Coefficient vs. Zener voltage") in the HZK Series datasheet. At 16 V, this corresponds to +0.034%/°C. This value is consistent with mid-voltage Zener diodes and supports predictable drift modeling in temperature-sensitive reference designs using the HZK16JTR.

Can HZK16JTR be used in place of HZK16 without modification?

Yes, HZK16JTR is a tape-and-reel packaging variant of the base HZK16 device, sharing identical electrical specifications, LLD package dimensions, and marking (Light Blue/Yellow Ocher/Pink bands). The "JTR" suffix denotes jumbo tape/reel packaging for automated assembly, not a functional or parametric revision. All HZK16JTR units meet the same 15.3–17.1 V V_Z, 45 Ω r_d, and 500 mW P_d specs as documented for HZK16 in the same datasheet.

What is the maximum reverse current for HZK16JTR at 12 V?

The maximum reverse current (I_R) for HZK16JTR at V_R = 12 V is 1 µA, as specified in the Electrical Characteristics table on page 3 of the HZK Series datasheet. This low leakage ensures minimal parasitic loading in high-impedance reference or sensing nodes, and is verified under DC test conditions per the datasheet note. The HZK16JTR maintains this specification across its full operating temperature range.