Renesas HZS2C2TD-P-E

Overview

HZS2C2TD-P-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 2.4 V (min 2.4 V / max 2.6 V), 400 mW power dissipation, and dynamic resistance of 100 Ω at 5 mA test current - deployed in industrial control logic supply rails and sensor biasing circuits.

For engineers reviewing the HZS2C2TD-P-E datasheet, HZS2C2TD-P-E pinout, HZS2C2TD-P-E application, or HZS2C2TD-P-E equivalent, this device serves as a surface-mount, low-leakage, low-impedance voltage reference for fixed-rail regulation where thermal stability and tight voltage tolerance are critical in compact PCB layouts.

Technical Context

The HZS2C2TD-P-E implements a planar junction Zener structure optimized for stable reverse-breakdown operation at low currents (5 mA test condition), with low temperature coefficient (−3.5 mV/°C typical near 2.4 V) and minimal leakage (<5 µA at 0.5 V). Its design targets DC voltage reference and overvoltage protection roles in linear regulator feedback paths and analog front-end bias networks.

It operates within a −55°C to +175°C storage range and up to 200°C junction temperature, supporting high-reliability industrial environments. The device is not rated for automotive or safety-critical applications and carries Renesas' "Standard" quality grade per internal classification.

Key Specifications

Pinout & Package

Package: MHD (JEITA code GRZZ0002ZC-A), 2-pin surface-mount, cathode-band marked, 2.0 mm diameter body, 26.0 mm lead length (tinned), mass ≈ 0.084 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5222BS-7-F and BZX84-C2V4, the HZS2C2TD-P-E delivers higher power handling (400 mW vs. 300 mW) and identical dynamic resistance while maintaining tighter V_Z spread - making it optimal for industrial power rails requiring sustained regulation under variable load and ambient stress.

Availability

HZS2C2TD-P-E is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset circuits, and linear regulator feedback networks requiring stable component supply with consistent parametric performance across production batches.

Supply support for HZS2C2TD-P-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 Corporation is a Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.

The HZS Series belongs to Renesas' discrete Zener diode product line, engineered specifically for high-stability, low-noise voltage reference and shunt regulation in industrial power management systems.

FAQ

What is the exact zener voltage range for HZS2C2TD-P-E at 5 mA test current?

The HZS2C2TD-P-E has a guaranteed zener voltage range of 2.4 V minimum to 2.6 V maximum when tested at I_Z = 5 mA and T_a = 25°C. This 0.2 V span reflects its C2 grade within the HZS2 family and ensures predictable regulation in precision low-voltage reference applications. The HZS2C2TD-P-E datasheet specifies no deviation beyond these limits under defined test conditions.

Is HZS2C2TD-P-E suitable for automotive applications?

No, the HZS2C2TD-P-E is classified by Renesas as a "Standard" quality grade device, intended for computers, office equipment, industrial robots, and communications gear - not for automotive or safety-critical systems. It lacks AEC-Q200 qualification, and Renesas explicitly restricts its use in transportation equipment without prior written consent. For automotive use, consider AEC-Q200-qualified alternatives like BZX84-C2V4.

What package does HZS2C2TD-P-E use, and is it compatible with automated assembly?

HZS2C2TD-P-E uses the MHD package (JEITA code GRZZ0002ZC-A), a 2-pin surface-mount device with 5 mm pitch lead spacing. Its standardized dimensions and tinned leads are explicitly designed for high-speed automatic insertion equipment, as confirmed in the Renesas HZS Series datasheet. No manual soldering adaptation is required for standard SMT lines.

How does the dynamic resistance of HZS2C2TD-P-E affect its regulation performance?

The HZS2C2TD-P-E has a maximum dynamic resistance of 100 Ω at I_Z = 5 mA, meaning output voltage varies by ≤100 mV per 1 mA change in zener current. This low r_d ensures stable regulation under moderate load transients - critical in sensor bias and reset circuits where even small V_Z shifts cause functional errors. The HZS2C2TD-P-E achieves this without external compensation components.

Can HZS2C2TD-P-E replace a 2.5 V Zener diode in an existing design?

The HZS2C2TD-P-E provides 2.4–2.6 V regulation, overlapping the typical 2.5 V nominal range. If the original circuit tolerates ±0.1 V shift and operates within 400 mW limits, HZS2C2TD-P-E can serve as a functional replacement. However, verify thermal margin and dynamic response - especially if the legacy part had higher power rating or lower r_d. Always revalidate under worst-case ambient and load conditions.