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 HZ6B2L-E

Name: HZ6B2L-E
Brand: Renesas
SKU: HZ6B2L-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: HZ6B2L-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

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

Datasheet:: HZ6B2L-E.pdf

Description:: DIODE ZENER 6.2V 400MW DO35

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:15,833

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

Product details

Overview

HZ6B2L-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 5.6–5.9 V, 400 mW power dissipation, 80 Ω dynamic resistance at 0.5 mA, and DO-35 glass package. It serves as a stable reference in low-drift power supplies and sensor biasing networks where noise suppression is critical.

For engineers reviewing the HZ6B2L-E datasheet, HZ6B2L-E pinout, HZ6B2L-E application, or HZ6B2L-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance relative to standard HZ series, thermal coefficient behavior below 6 V, and DO-35 mechanical compatibility in space-constrained PCB layouts.

Technical Context

The HZ6B2L-E employs a silicon planar junction structure with controlled doping and geometry to achieve reduced flicker and avalanche noise-approximately 1/3–1/10 that of legacy HZ-series diodes. Its zener voltage is specified at 0.5 mA test current under DC conditions, ensuring stable operation in low-current reference paths.

With a maximum junction temperature of 175°C and storage range from −55°C to +175°C, the device supports industrial-grade thermal reliability. Its dynamic resistance of 80 Ω at I_Z = 0.5 mA enables tight regulation in feedback loops where load transients demand minimal output deviation.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.6 V min to 5.9 V max at I_Z = 0.5 mA - defines precise DC reference level for analog circuitry
Dynamic Resistance (r_d)	80 Ω max at I_Z = 0.5 mA - ensures minimal output voltage shift under small-signal current variation
Power Dissipation (P_d)	400 mW at T_a = 25°C - sets maximum continuous DC power handling without derating
Reverse Current (I_R)	1 μA max at V_R = 2.0 V - guarantees low leakage in high-impedance bias networks
Junction Temperature (T_j)	175°C max - supports operation in thermally demanding industrial environments
Noise Level	≈1/3–1/10 of HZ-series - directly reduces broadband noise contribution in sensitive amplifiers and ADC references

Pinout & Package

Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band. Mass: 0.13 g. Dimensions: φD = 2.0 mm, L = 26.0 mm, E = 4.2 mm.

Pin/Terminal	Circuit Role	Design Meaning
1 (Cathode)	Zener voltage reference node	Connected to regulated output or feedback point; polarity must be observed to maintain reverse-bias operation
2 (Anode)	Current return path	Typically tied to ground or lower-potential rail; completes bias current loop for stable V_Z establishment

Key Features

Feature	Design Value
Low-noise zener operation	Reduces RMS noise voltage by up to 90% vs. standard HZ diodes-critical for high-resolution sensor signal chains
Stable low-current regulation	Specified at I_Z = 0.5 mA, enabling use in micropower reference designs without external amplification
Wide zener voltage tolerance control	±0.3 V window (5.6–5.9 V) allows binning for tighter system-level accuracy without trimming
High thermal robustness	175°C max junction temperature supports uninterrupted operation in sealed enclosures or near heat sources

Applications

Instrumentation Reference	Low-Noise Sensor Biasing
Use Scenario: Precision multimeter front-end voltage reference requiring sub-millivolt stability over temperature and time. IC Role / Device Role / Timing Role: Zener diode providing fixed, low-drift DC reference for ADC input scaling and offset calibration. Use Value: 80 Ω dynamic resistance and <1 μA leakage minimize loading error and long-term drift in high-impedance divider networks.	Use Scenario: Supplying bias current to piezoresistive pressure sensors in medical diagnostic equipment. IC Role / Device Role / Timing Role: Low-noise voltage reference establishing clean excitation potential across sensor bridge elements. Use Value: Noise reduction of 70–90% versus standard Zeners prevents signal-to-noise degradation in microvolt-level sensor outputs.
Industrial Power Monitor	Calibration Equipment Reference
Use Scenario: Monitoring 5 V rail integrity in programmable logic controller (PLC) I/O modules with ±0.5% accuracy requirement. IC Role / Device Role / Timing Role: Zener-based shunt regulator stabilizing internal supervisor circuitry against supply ripple and load transients. Use Value: 400 mW power rating and DO-35 thermal mass enable sustained regulation during brief overvoltage events without thermal runaway.	Use Scenario: Embedded reference in handheld calibrators verifying 0–10 V analog outputs of process transmitters. IC Role / Device Role / Timing Role: Primary voltage standard traceable to factory calibration, operating at fixed 0.5 mA bias. Use Value: Tight 5.6–5.9 V V_Z window and low temperature coefficient (<0.1%/°C) ensure calibration repeatability across ambient shifts.

Instrumentation Reference

Low-Noise Sensor Biasing

Use Scenario: Precision multimeter front-end voltage reference requiring sub-millivolt stability over temperature and time.

IC Role / Device Role / Timing Role: Zener diode providing fixed, low-drift DC reference for ADC input scaling and offset calibration.

Use Value: 80 Ω dynamic resistance and <1 μA leakage minimize loading error and long-term drift in high-impedance divider networks.

Use Scenario: Supplying bias current to piezoresistive pressure sensors in medical diagnostic equipment.

IC Role / Device Role / Timing Role: Low-noise voltage reference establishing clean excitation potential across sensor bridge elements.

Use Value: Noise reduction of 70–90% versus standard Zeners prevents signal-to-noise degradation in microvolt-level sensor outputs.

Industrial Power Monitor

Calibration Equipment Reference

Use Scenario: Monitoring 5 V rail integrity in programmable logic controller (PLC) I/O modules with ±0.5% accuracy requirement.

IC Role / Device Role / Timing Role: Zener-based shunt regulator stabilizing internal supervisor circuitry against supply ripple and load transients.

Use Value: 400 mW power rating and DO-35 thermal mass enable sustained regulation during brief overvoltage events without thermal runaway.

Use Scenario: Embedded reference in handheld calibrators verifying 0–10 V analog outputs of process transmitters.

IC Role / Device Role / Timing Role: Primary voltage standard traceable to factory calibration, operating at fixed 0.5 mA bias.

Use Value: Tight 5.6–5.9 V V_Z window and low temperature coefficient (<0.1%/°C) ensure calibration repeatability across ambient shifts.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N5226B (ON Semiconductor)	Zener voltage 3.3 V, 80 Ω r_d, but higher noise and no low-noise specification	Suitable for general-purpose regulation, not validated for ultra-low-noise signal chains	Select only when noise floor is non-critical and 3.3 V reference suffices
BZX84-C5V6 (Diodes Inc.)	SOT-23 package, 5.6 V nominal, 60 Ω r_d, but unspecified noise performance and ±5% V_Z tolerance	Preferred for space-constrained PCBs; lacks documented low-noise advantage and tighter binning	Choose for footprint reduction where noise sensitivity is secondary to board area

Compared with 1N5226B and BZX84-C5V6, the HZ6B2L-E delivers verified low-noise operation, tighter 5.6–5.9 V binning, and DO-35 thermal stability-making it uniquely suited for metrology-grade analog references where noise and drift dominate design constraints.

Availability

HZ6B2L-E is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor interfaces, and calibration equipment requiring stable component supply with consistent low-noise performance and DO-35 mechanical fit.

Supply support for HZ6B2L-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 specializing in microcontrollers, analog mixed-signal devices, and power management ICs for industrial, automotive, and infrastructure applications.

The HZ-L Series was designed specifically for low-noise voltage reference applications in high-fidelity analog systems, addressing limitations of earlier Zener families through optimized planar junction fabrication and tighter parametric binning.

FAQ

What is the exact zener voltage range for HZ6B2L-E?

The HZ6B2L-E has a guaranteed zener voltage range of 5.6 V minimum to 5.9 V maximum when tested at I_Z = 0.5 mA and T_a = 25°C. This 0.3 V window enables selective binning for applications requiring tighter reference accuracy without external trimming circuitry. The HZ6B2L-E's specification is distinct from adjacent variants like HZ6B1L (5.5–5.8 V) and HZ6B3L (5.7–6.0 V).

Is HZ6B2L-E compatible with standard DO-35 footprints?

Yes, the HZ6B2L-E uses the JEITA-standard DO-35 package (Renesas code GRZZ0002ZB-A) with body diameter 2.0 mm, length 26.0 mm, and lead spacing 4.2 mm. Its orange body and navy blue cathode band match industry-recognized DO-35 visual identification. No PCB layout modification is required when replacing other DO-35 Zener diodes with identical mechanical envelope.

How does the noise performance of HZ6B2L-E compare to standard Zener diodes?

The HZ6B2L-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zener diodes due to its silicon planar junction process and optimized geometry. This reduction is measured across the 10 Hz–10 kHz bandwidth and directly improves signal integrity in applications such as precision ADC references and low-level sensor excitation where noise coupling degrades effective resolution.

What is the maximum reverse current specification for HZ6B2L-E?

The HZ6B2L-E specifies a maximum reverse current (I_R) of 1 μA at V_R = 2.0 V and T_a = 25°C. This low leakage supports high-impedance bias networks-such as those used in electrometer-grade amplifiers or battery-powered sensor nodes-where even nanoampere-level currents would introduce measurable error or accelerate battery drain.

Can HZ6B2L-E operate reliably above 100°C ambient temperature?

Yes, the HZ6B2L-E is rated for storage from −55°C to +175°C and has a maximum junction temperature of 175°C. Its power derating curve (Fig.3 in REJ03G0182-0300) shows usable dissipation down to ~200 mW at 100°C ambient. When mounted on FR-4 with standard 10 mm lead length, the HZ6B2L-E maintains stable regulation in industrial control cabinets and motor drive enclosures without forced cooling.

HZ6B2L-E Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: HZ-L

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

Packaging:: Bulk

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 6.2 V

Tolerance:: ±2.42%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 1 µA @ 2 V

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

Operating Temperature:: 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-35

HZ6B2L-E FAQ

1.How can I place an order for HZ6B2L-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZ6B2L-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 HZ6B2L-E reliable?

The price and inventory of HZ6B2L-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6B2L-E is usually 5 days.

3.What payment methods are accepted for HZ6B2L-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6B2L-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZ6B2L-E?

HZ6B2L-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZ6B2L-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 HZ6B2L-E?

For technical support, including HZ6B2L-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6B2L-E requirements.

6.How does Aetrix verify that HZ6B2L-E is sourced from the original manufacturer or authorized distributors?

All HZ6B2L-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 HZ6B2L-E meets industry standards.

7.What is the process for return or replacement of HZ6B2L-E?

All HZ6B2L-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6B2L-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 HZ6B2L-E part is unused and in its original packaging.

Return procedure for HZ6B2L-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…