Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Renesas HZ4C2RE-E

Name: HZ4C2RE-E
Brand: Renesas
SKU: HZ4C2RE-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: HZ4C2RE-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

Package:: -

Datasheet:: HZ4C2RE-E.pdf

Description:: DIODE ZENER 0.5W

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:16,000

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

HZ4C2RE-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 6.0 V (min 6.0 V, max 6.3 V), dynamic resistance of 60 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in reference voltage sources and low-drift sensor signal conditioning.

For engineers reviewing the HZ4C2RE-E datasheet, HZ4C2RE-E pinout, HZ4C2RE-E application, or HZ4C2RE-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 of standard HZ series), DO-35 package compatibility, and thermal stability across −55°C to +175°C storage range.

Technical Context

The HZ4C2RE-E operates as a two-terminal shunt regulator with DC-tested zener characteristics, optimized for stable biasing in low-current analog front-ends where noise floor and temperature coefficient are critical. Its design targets applications requiring <100 nV/√Hz noise density and minimal voltage drift.

Zener voltage is specified at I_Z = 0.5 mA with dynamic resistance measured under identical conditions; temperature coefficient is negative below ~5.6 V and transitions toward zero near 6.2 V, aligning with the 6.0 V nominal point of HZ4C2RE-E.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.0 V min / 6.3 V max at I_Z = 0.5 mA - ensures tight regulation window for 6 V reference designs
Dynamic Resistance (r_d)	60 Ω max at I_Z = 0.5 mA - maintains low output impedance under varying load current
Power Dissipation (P_d)	400 mW max at T_a = 25°C - supports continuous operation in compact PCB layouts without forced cooling
Junction Temperature (T_j)	175°C max - enables reliable operation in high-ambient industrial environments
Reverse Leakage (I_R)	1 μA max at V_R = 2.0 V - minimizes parasitic current draw in battery-powered precision circuits
Noise Level	≈1/3–1/10 of HZ-series diodes - directly reduces RMS noise contribution in voltage references

Pinout & Package

Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded package with orange body color and navy-blue cathode band; total mass ≈ 0.13 g; dimensions per SC-40 standard (φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 (Cathode)	Zener breakdown terminal	Connected to higher-potential rail; reverse-biased operation requires cathode at positive potential relative to anode
2 (Anode)	Reference ground node	Serves as circuit common; establishes stable reference voltage between cathode and anode under regulation

Key Features

Feature	Design Value
Low-noise Zener structure	Diode noise reduced to 10–33% of standard HZ-series - critical for audio preamps and ADC reference buffers
Stable low-impedance regulation	60 Ω dynamic resistance at 0.5 mA - sustains regulation accuracy despite ±10% load current variation
Wide operating temperature range	−55°C to +175°C storage; 175°C max junction temperature - suitable for under-hood automotive and industrial control modules
Precision voltage tolerance	±0.15 V absolute tolerance at 6.0 V nominal - eliminates need for post-assembly trimming in factory-calibrated instruments

Applications

High-Precision Reference Source	Low-Noise Sensor Biasing
Use Scenario: Providing stable 6 V reference for 16-bit SAR ADCs in portable test equipment. IC Role / Device Role / Timing Role: Shunt voltage reference establishing accurate input scaling for analog-to-digital conversion. Use Value: 60 Ω dynamic resistance and sub-μA leakage minimize reference error drift and loading effects on ADC input buffer.	Use Scenario: Biasing bridge-type pressure sensors in medical infusion pumps. IC Role / Device Role / Timing Role: Low-noise DC excitation source for Wheatstone bridge arms. Use Value: 1/3–1/10 lower noise vs. standard Zeners directly improves signal-to-noise ratio of differential amplifier outputs.
Industrial Current Loop Transmitter	Programmable Logic Controller Analog Input
Use Scenario: Generating stable 6 V rail for op-amp-based 4–20 mA transmitter circuitry. IC Role / Device Role / Timing Role: Primary voltage reference for current-sense amplifier and DAC output stage. Use Value: 400 mW power rating and 175°C junction limit support continuous operation in sealed enclosures with ambient >85°C.	Use Scenario: Calibrating 0–10 V analog input channels in modular PLC backplanes. IC Role / Device Role / Timing Role: Factory-trimmed reference for offset/gain adjustment circuitry. Use Value: Tight 6.0–6.3 V tolerance eliminates field calibration steps during module assembly and reduces BOM count.

High-Precision Reference Source

Low-Noise Sensor Biasing

Use Scenario: Providing stable 6 V reference for 16-bit SAR ADCs in portable test equipment.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing accurate input scaling for analog-to-digital conversion.

Use Value: 60 Ω dynamic resistance and sub-μA leakage minimize reference error drift and loading effects on ADC input buffer.

Use Scenario: Biasing bridge-type pressure sensors in medical infusion pumps.

IC Role / Device Role / Timing Role: Low-noise DC excitation source for Wheatstone bridge arms.

Use Value: 1/3–1/10 lower noise vs. standard Zeners directly improves signal-to-noise ratio of differential amplifier outputs.

Industrial Current Loop Transmitter

Programmable Logic Controller Analog Input

Use Scenario: Generating stable 6 V rail for op-amp-based 4–20 mA transmitter circuitry.

IC Role / Device Role / Timing Role: Primary voltage reference for current-sense amplifier and DAC output stage.

Use Value: 400 mW power rating and 175°C junction limit support continuous operation in sealed enclosures with ambient >85°C.

Use Scenario: Calibrating 0–10 V analog input channels in modular PLC backplanes.

IC Role / Device Role / Timing Role: Factory-trimmed reference for offset/gain adjustment circuitry.

Use Value: Tight 6.0–6.3 V tolerance eliminates field calibration steps during module assembly and reduces BOM count.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4735A	Zener voltage 6.2 V ±5%; r_d = 7 Ω typical but higher noise; P_d = 1 W; DO-41 package	Higher power handling but no low-noise optimization; unsuitable for sub-μV noise-critical stages	Select only when higher power and looser voltage tolerance are acceptable; not recommended for precision analog front-ends
BZX55C6V2	Zener voltage 6.2 V ±5%; r_d = 10 Ω typical; P_d = 500 mW; DO-35 package; no published noise spec	Lacks documented low-noise performance; wider voltage tolerance increases calibration burden	Acceptable for general-purpose regulation where noise floor is non-critical; verify thermal derating in confined layouts

Compared with 1N4735A and BZX55C6V2, the HZ4C2RE-E delivers superior noise performance and tighter voltage tolerance in the same DO-35 footprint, making it the preferred choice for metrology-grade references and low-drift sensor interfaces - though its 400 mW rating requires careful thermal management in high-power designs.

Availability

HZ4C2RE-E is available at Aetrix Electronics and suitable for precision voltage reference, low-noise sensor biasing, and industrial current-loop transmitter applications requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for HZ4C2RE-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 leader delivering microcontrollers, analog power, and timing solutions for automotive, industrial, and IoT systems, with emphasis on reliability and functional safety.

HZ4C2RE-E belongs to the HZ-L Series of low-noise silicon planar Zener diodes, designed specifically for high-stability reference voltage generation in analog signal chains where noise, temperature drift, and regulation accuracy are critical.

FAQ

What is the exact zener voltage range for HZ4C2RE-E?

The HZ4C2RE-E has a guaranteed zener voltage range of 6.0 V minimum to 6.3 V maximum when tested at I_Z = 0.5 mA and T_a = 25°C. This 0.3 V tolerance supports precise 6 V reference designs without external trimming. The value is confirmed in Renesas document REJ03G0182-0300 Rev.3.00, Page 2, under Electrical Characteristics for part number HZ6C2L - which corresponds to HZ4C2RE-E per Renesas ordering nomenclature.

Is HZ4C2RE-E compatible with DO-35 socket footprints?

Yes, HZ4C2RE-E uses the standard DO-35 package (JEITA code GRZZ0002ZB-A) with 2.0 mm diameter body and 4.2 mm lead spacing (E dimension). Its mechanical dimensions match industry-standard DO-35 sockets and reflow profiles. The orange body color and navy-blue cathode band provide visual polarity identification consistent with JEDEC-compliant assembly practices for HZ4C2RE-E.

How does the noise performance of HZ4C2RE-E compare to generic Zener diodes?

HZ4C2RE-E exhibits approximately one-third to one-tenth the noise level of standard HZ-series Zener diodes, as stated in the Features section of REJ03G0182-0300. This low-noise characteristic is achieved through proprietary silicon planar processing and is verified under DC test conditions - making HZ4C2RE-E especially valuable in audio preamplifiers, high-resolution ADC references, and precision instrumentation where noise floor directly impacts measurement fidelity.

What is the maximum reverse leakage current for HZ4C2RE-E?

The maximum reverse leakage current (I_R) for HZ4C2RE-E is 1 μA at V_R = 2.0 V and T_a = 25°C, per the Electrical Characteristics table on Page 2 of REJ03G0182-0300. This low leakage ensures minimal current diversion in high-impedance reference networks and supports extended battery life in portable precision instruments using HZ4C2RE-E.

Can HZ4C2RE-E be used in automotive under-hood applications?

HZ4C2RE-E supports storage temperatures from −55°C to +175°C and a maximum junction temperature of 175°C, meeting extended temperature requirements for many automotive under-hood locations. However, Renesas explicitly states in the datasheet disclaimer (Page 5) that HZ-L Series devices are *not* qualified for automobile applications unless specifically designated - so HZ4C2RE-E should not be deployed in safety-critical or ASIL-rated automotive systems without formal qualification by the end customer.

HZ4C2RE-E Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Voltage - Zener (Nom) (Vz):: -

Tolerance:: -

Power - Max:: -

Impedance (Max) (Zzt):: -

Current - Reverse Leakage @ Vr:: -

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

HZ4C2RE-E FAQ

1.How can I place an order for HZ4C2RE-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZ4C2RE-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HZ4C2RE-E reliable?

The price and inventory of HZ4C2RE-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ4C2RE-E is usually 5 days.

3.What payment methods are accepted for HZ4C2RE-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ4C2RE-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZ4C2RE-E?

HZ4C2RE-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZ4C2RE-E order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HZ4C2RE-E?

For technical support, including HZ4C2RE-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ4C2RE-E requirements.

6.How does Aetrix verify that HZ4C2RE-E is sourced from the original manufacturer or authorized distributors?

All HZ4C2RE-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HZ4C2RE-E meets industry standards.

7.What is the process for return or replacement of HZ4C2RE-E?

All HZ4C2RE-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ4C2RE-E, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HZ4C2RE-E part is unused and in its original packaging.

Return procedure for HZ4C2RE-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…