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

Renesas HZ6C1-E

Name: HZ6C1-E
Brand: Renesas
SKU: HZ6C1-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HZ6C1-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

Package:: DO-204AH, DO-35, Axial

Datasheet:: HZ6C1-E.pdf

Description:: DIODE ZENER 6V 500MW DO35

Quantity:: RFQ Add To RFQ list

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Inventory:13,590

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Product details

Overview

HZ6C1-E from Renesas is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 6.1–6.4 V, 5 mW reverse current test condition, 2.0 Ω typical dynamic resistance, and 500 mW maximum power dissipation in DO-35 package.

For engineers reviewing the HZ6C1-E datasheet, HZ6C1-E pinout, HZ6C1-E application, or HZ6C1-E equivalent, this device serves as a discrete voltage reference in analog sensing circuits, low-current bias networks, and overvoltage protection clamping stages where tight tolerance and low impedance are required at 5 mA operating point.

Technical Context

The HZ6C1-E operates as a two-terminal shunt regulator using silicon planar junction technology, optimized for DC-stable operation with low leakage and minimal temperature-induced drift. Its zener voltage is specified at 5 mA test current, and its dynamic resistance is measured under identical DC conditions.

It exhibits a positive zener voltage temperature coefficient near 0 mV/°C for the 6 V range (per Fig.2), enabling stable reference performance across ambient temperatures up to 125°C derated per Fig.3. Junction temperature is rated to 175°C, supporting use in thermally constrained PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.1–6.4 V at I_Z = 5 mA - defines precise clamping threshold for 5–10 mA load regulation
Dynamic Resistance (r_d)	2.0 Ω max at I_Z = 5 mA - ensures minimal output voltage variation under load transients
Power Dissipation (P_d)	500 mW max at T_a = 25°C - supports continuous operation in standard through-hole PCB footprints
Reverse Current (I_R)	5 µA max at V_R = 0.5 V - guarantees low standby leakage in battery-backed or ultra-low-power circuits
Junction Temperature (T_j)	−55 to +175°C - enables deployment in industrial control and automotive under-hood auxiliary circuits
Package	DO-35 (JEITA GRZZ0002ZB-A) - industry-standard glass axial leaded package with cathode band marking

Pinout & Package

DO-35 glass axial package with 2 mm diameter body, 26 mm length, and 0.5 mm lead diameter; cathode identified by navy blue band.

Pin/Terminal	Circuit Role	Design Meaning
1 (Banded End)	Cathode	Connected to regulated voltage node; sinks current during zener conduction
2 (Non-banded End)	Anode	Connected to circuit ground or lower-potential rail; completes shunt path

Key Features

Feature	Design Value
Low dynamic impedance	2.0 Ω max at 5 mA - maintains <±10 mV regulation error under ±1 mA load step
Wide zener voltage spectrum	1.6–38 V family coverage - allows single-source qualification across multiple voltage rails
Stable temperature coefficient	≈0 mV/°C near 6 V (Fig.2) - minimizes thermal drift in unheated enclosures
High junction temperature rating	175°C max - supports reliability in sealed or convection-limited environments

Applications

Industrial Sensor Signal Conditioning	Microcontroller Reset Circuitry
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitter modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 6.2 V bias to op-amp gain stage and ADC VREF input. Use Value: 2.0 Ω dynamic resistance ensures <0.5 LSB error contribution from supply ripple at 5 mA quiescent current.	Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in programmable logic controllers. IC Role / Device Role / Timing Role: Zener-clamped resistor-divider sets POR threshold at 2.8 V via voltage divider from 5 V rail. Use Value: 5 µA max reverse leakage prevents false resets during brown-out recovery with high-impedance divider networks.
Low-Power Battery Monitor	Overvoltage Clamp in USB-C ESD Protection
Use Scenario: Monitoring Li-ion cell voltage in portable medical devices with 10-year shelf life requirement. IC Role / Device Role / Timing Role: Passive voltage threshold detector feeding comparator input in ultra-low-quiescent monitor IC. Use Value: −55 to +175°C storage rating ensures long-term parametric stability without calibration drift.	Use Scenario: Secondary clamping stage downstream of TVS diode in USB-C port protection stack. IC Role / Device Role / Timing Role: Low-impedance shunt element absorbing residual surge energy after primary TVS conduction. Use Value: 500 mW power rating enables sustained 200 ms transient absorption at 6.2 V without thermal runaway.

Industrial Sensor Signal Conditioning

Microcontroller Reset Circuitry

Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitter modules.

IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 6.2 V bias to op-amp gain stage and ADC VREF input.

Use Value: 2.0 Ω dynamic resistance ensures <0.5 LSB error contribution from supply ripple at 5 mA quiescent current.

Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in programmable logic controllers.

IC Role / Device Role / Timing Role: Zener-clamped resistor-divider sets POR threshold at 2.8 V via voltage divider from 5 V rail.

Use Value: 5 µA max reverse leakage prevents false resets during brown-out recovery with high-impedance divider networks.

Low-Power Battery Monitor

Overvoltage Clamp in USB-C ESD Protection

Use Scenario: Monitoring Li-ion cell voltage in portable medical devices with 10-year shelf life requirement.

IC Role / Device Role / Timing Role: Passive voltage threshold detector feeding comparator input in ultra-low-quiescent monitor IC.

Use Value: −55 to +175°C storage rating ensures long-term parametric stability without calibration drift.

Use Scenario: Secondary clamping stage downstream of TVS diode in USB-C port protection stack.

IC Role / Device Role / Timing Role: Low-impedance shunt element absorbing residual surge energy after primary TVS conduction.

Use Value: 500 mW power rating enables sustained 200 ms transient absorption at 6.2 V without thermal runaway.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4734A (ON Semiconductor)	Zener voltage 5.6 V ±5%, r_d = 5 Ω, P_d = 1 W, DO-41 package	Higher power but looser tolerance and higher impedance - suitable for non-critical biasing	Select when higher surge margin is needed and 0.5 V lower reference is acceptable
BZX55C6V2 (Vishay)	Zener voltage 6.2 V ±5%, r_d = 10 Ω, P_d = 500 mW, DO-35 package	Same package and power, but higher dynamic resistance - less effective for precision regulation	Select when cost sensitivity outweighs regulation accuracy requirements

Compared with 1N4734A and BZX55C6V2, the HZ6C1-E delivers tighter voltage tolerance (±2.5% vs ±5%), lower dynamic resistance (2.0 Ω vs 5–10 Ω), and matched DO-35 footprint - making it optimal for space-constrained, high-accuracy analog references where thermal stability and low noise are critical.

Availability

HZ6C1-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, microcontroller reset generation, and low-power battery monitoring requiring stable component supply and long-term parametric consistency.

Supply support for HZ6C1-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 specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.

The HZ Series Zener diodes were developed specifically for high-reliability voltage reference and stabilization in industrial power supplies and analog signal chains where low leakage and predictable temperature behavior are essential.

FAQ

What is the exact zener voltage range specified for HZ6C1-E?

The HZ6C1-E has a guaranteed zener voltage range of 6.1 V to 6.4 V when tested at 5 mA DC current, corresponding to Grade C3 within the HZ6 family per REJ03G0180-0600 Rev.6.00. This 300 mV window reflects tight process control for precision regulation applications, and the value is confirmed in Table on Page 3 of the official Renesas datasheet for HZ6C1-E.

Is HZ6C1-E compatible with automated through-hole assembly processes?

Yes, the HZ6C1-E uses the standard DO-35 package with 2.0 mm body diameter and 26 mm lead length, fully compatible with wave soldering and selective soldering equipment. Its glass encapsulation and axial lead geometry meet IPC-J-STD-020 moisture sensitivity level 1 requirements, and no pre-baking is needed prior to assembly - a key advantage confirmed in Renesas Package Dimensions drawing on Page 6.

Does HZ6C1-E have a specified temperature coefficient, and how does it affect circuit design?

Per Figure 2 in the HZ Series datasheet, the HZ6C1-E exhibits a zener voltage temperature coefficient near 0 mV/°C in the 6 V range, meaning its reference voltage remains highly stable across ambient temperatures. This eliminates need for external compensation in applications like sensor excitation or ADC reference - a verified characteristic critical for designs operating from −40°C to +85°C without calibration.

Can HZ6C1-E be used in place of HZ6B2, and what are the key differences?

No - HZ6C1-E and HZ6B2 are distinct grades: HZ6C1-E specifies 6.1–6.4 V (Grade C3), while HZ6B2 specifies 6.9–7.2 V (Grade B2). Their zener voltages do not overlap, and substitution would cause incorrect regulation. The datasheet explicitly separates these grades in the Electrical Characteristics table on Page 3, confirming they serve different voltage-target applications.

What is the maximum reverse leakage current for HZ6C1-E, and under what condition is it measured?

The maximum reverse leakage current for HZ6C1-E is 5 µA, measured at V_R = 0.5 V (Page 2, Electrical Characteristics table). This ultra-low leakage ensures minimal current draw in high-impedance bias networks and preserves battery life in always-on monitoring circuits - a verified specification critical for low-power design validation.

HZ6C1-E Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: HZ

Package/Case:: DO-204AH, DO-35, Axial

Packaging:: Bulk

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6 V

Tolerance:: ±2.5%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 5 µA @ 2 V

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

Operating Temperature:: 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-35

HZ6C1-E FAQ

1.How can I place an order for HZ6C1-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZ6C1-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 HZ6C1-E reliable?

The price and inventory of HZ6C1-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6C1-E is usually 5 days.

3.What payment methods are accepted for HZ6C1-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6C1-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZ6C1-E?

HZ6C1-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZ6C1-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 HZ6C1-E?

For technical support, including HZ6C1-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6C1-E requirements.

6.How does Aetrix verify that HZ6C1-E is sourced from the original manufacturer or authorized distributors?

All HZ6C1-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 HZ6C1-E meets industry standards.

7.What is the process for return or replacement of HZ6C1-E?

All HZ6C1-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6C1-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 HZ6C1-E part is unused and in its original packaging.

Return procedure for HZ6C1-E:

1.Submit a request within 90 days.

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

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