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

Renesas HZS6B2TA-E

Name: HZS6B2TA-E
Brand: Renesas
SKU: HZS6B2TA-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HZS6B2TA-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

Package:: -

Datasheet:: HZS6B2TA-E.pdf

Description:: DIODE ZENER 0.4W

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Inventory:5,000

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Product details

Overview

HZS6B2TA-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized DC supplies, featuring a nominal zener voltage of 6.2 V (min 6.1 V, max 6.4 V), 400 mW power dissipation, 2.0 Ω typical dynamic resistance at 5 mA, and operation up to 200°C junction temperature - used in voltage reference circuits for industrial sensors and embedded power monitors.

For engineers reviewing the HZS6B2TA-E datasheet, HZS6B2TA-E pinout, HZS6B2TA-E application, or HZS6B2TA-E equivalent, this page delivers verified electrical specs, package dimensions, thermal derating behavior, cathode/anode terminal roles, and direct alternative options for voltage reference design validation and BOM optimization.

Technical Context

The HZS6B2TA-E operates as a two-terminal shunt regulator with fixed breakdown voltage defined under DC test conditions at I_Z = 5 mA. Its low dynamic resistance (2.0 Ω) ensures stable output under varying load currents, while its −55°C to +175°C storage temperature range supports wide ambient deployment.

Designed for surface-mount compatible through-hole insertion (5 mm pitch), the device uses a silicon planar junction structure with lake-blue cathode band marking. It exhibits a zener voltage temperature coefficient of approximately −0.04 %/°C near 6.2 V, confirming negative TC behavior typical of low-voltage Zeners.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.1 V min / 6.4 V max at I_Z = 5 mA - defines tight regulation window for ±3.2% tolerance in feedback references.
Power Dissipation (P_d)	400 mW at T_a = 25°C - sets maximum continuous DC power handling before thermal derating applies.
Dynamic Resistance (r_d)	2.0 Ω max at I_Z = 5 mA - ensures minimal output voltage shift under load transients in low-current references.
Reverse Current (I_R)	5 µA max at V_R = 4.0 V - guarantees low leakage below breakdown, critical for battery-powered standby circuits.
Junction Temperature (T_j)	200°C - enables reliable operation in high-temperature industrial enclosures without forced cooling.
Package Type	MHD (JEITA GRZZ0002ZC-A) - axial-leaded, 2.0 mm diameter glass body with 26 mm lead length, optimized for auto-insertion.

Pinout & Package

Package: MHD - hermetically sealed glass axial-leaded package per JEITA code GRZZ0002ZC-A; 2.0 mm body diameter, 26 mm lead length, 5 mm pitch compatibility; marked with lake-blue cathode band.

Pin/Terminal	Circuit Role	Design Meaning
1 (Cathode)	Breakdown voltage reference node	Connected to regulated output rail; reverse-biased terminal where stable V_Z develops during conduction.
2 (Anode)	Current return path	Connected to ground or lower-potential node; completes bias path for zener current I_Z flow.

Key Features

Feature	Design Value
Low zener impedance	2.0 Ω max ensures <10 mV output variation across ±1 mA load changes in reference designs.
High power density	400 mW rating in MHD package allows compact placement in space-constrained PCB layouts.
Wide operating temperature	−55°C to +175°C storage range supports use in automotive engine compartments and industrial control cabinets.
Precision voltage grading	B2 grade (6.1–6.4 V) provides tighter tolerance than standard A/C grades, reducing calibration overhead.

Applications

Industrial Sensor Signal Conditioning	Embedded Microcontroller Voltage Reference
Use Scenario: Providing stable 6.2 V reference for analog front-end amplifiers in temperature and pressure transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise bias point for op-amp gain stages and ADC input scaling. Use Value: Enables ±0.5% measurement accuracy over −40°C to +85°C ambient due to low r_d and predictable TC.	Use Scenario: Supplying accurate reference to internal ADC or external voltage supervisor in low-power MCU systems. IC Role / Device Role / Timing Role: Standalone zener reference replacing higher-cost IC references where 1% tolerance suffices. Use Value: Reduces BOM cost by 60% vs. 3-pin adjustable references while maintaining 6.2 V stability at <100 µA quiescent current.
DC-DC Converter Feedback Network	Overvoltage Protection Clamp
Use Scenario: Setting output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision voltage threshold element defining regulation setpoint in secondary-side error amplifier circuit. Use Value: Maintains ±2% output regulation across line/load variations due to tight V_Z tolerance and low r_d.	Use Scenario: Clamping transient surges on 5 V logic rails during hot-plug or ESD events in industrial I/O modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage excursions above 6.4 V to protect downstream CMOS inputs. Use Value: Responds within nanoseconds to suppress >100 V spikes to safe levels without latch-up, leveraging low capacitance (<2 pF).

Industrial Sensor Signal Conditioning

Embedded Microcontroller Voltage Reference

Use Scenario: Providing stable 6.2 V reference for analog front-end amplifiers in temperature and pressure transmitters.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise bias point for op-amp gain stages and ADC input scaling.

Use Value: Enables ±0.5% measurement accuracy over −40°C to +85°C ambient due to low r_d and predictable TC.

Use Scenario: Supplying accurate reference to internal ADC or external voltage supervisor in low-power MCU systems.

IC Role / Device Role / Timing Role: Standalone zener reference replacing higher-cost IC references where 1% tolerance suffices.

Use Value: Reduces BOM cost by 60% vs. 3-pin adjustable references while maintaining 6.2 V stability at <100 µA quiescent current.

DC-DC Converter Feedback Network

Overvoltage Protection Clamp

Use Scenario: Setting output voltage in isolated flyback converters via optocoupler-coupled feedback loop.

IC Role / Device Role / Timing Role: Precision voltage threshold element defining regulation setpoint in secondary-side error amplifier circuit.

Use Value: Maintains ±2% output regulation across line/load variations due to tight V_Z tolerance and low r_d.

Use Scenario: Clamping transient surges on 5 V logic rails during hot-plug or ESD events in industrial I/O modules.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage excursions above 6.4 V to protect downstream CMOS inputs.

Use Value: Responds within nanoseconds to suppress >100 V spikes to safe levels without latch-up, leveraging low capacitance (<2 pF).

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 (ON Semiconductor)	6.2 V nominal, ±5% tolerance (6.0–6.4 V), 1.0 W power rating, DO-41 package.	Higher power handling but larger footprint; less suitable for high-density automated assembly.	Choose when >400 mW surge capability is required and board space permits DO-41.
BZX55C6V2 (Vishay)	6.2 V nominal, ±5% tolerance, 500 mW rating, DO-35 package, 10 µA I_R at 4 V.	Slightly higher leakage and looser grading; common in legacy consumer designs.	Prefer for cost-sensitive volume production where 5% tolerance and DO-35 compatibility are acceptable.

Compared with 1N4735A and BZX55C6V2, the HZS6B2TA-E offers tighter B2-grade voltage tolerance (±2.4% vs. ±5%), lower dynamic resistance (2.0 Ω vs. ≥3.5 Ω), and MHD packaging optimized for high-speed insertion - making it optimal for precision industrial references where repeatability and assembly efficiency matter.

Availability

HZS6B2TA-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, embedded microcontroller voltage reference, and DC-DC converter feedback networks requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for HZS6B2TA-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 global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.

The HZS Series belongs to Renesas' discrete voltage reference product line, engineered specifically for high-stability, low-leakage shunt regulation in cost-sensitive yet thermally demanding power supply applications.

FAQ

What is the exact zener voltage range for HZS6B2TA-E?

The HZS6B2TA-E has a guaranteed zener voltage range of 6.1 V minimum to 6.4 V maximum when tested at I_Z = 5 mA and T_a = 25°C. This B2-grade specification reflects ±2.4% tolerance around the nominal 6.2 V value, confirmed in Renesas' REJ03G0184-0500 datasheet revision 5.00.

Does HZS6B2TA-E support high-temperature operation?

Yes, the HZS6B2TA-E supports junction temperatures up to 200°C and storage temperatures from −55°C to +175°C. Its silicon planar construction and glass MHD package enable reliable operation in industrial environments such as motor drive controls and factory automation equipment where ambient temperatures exceed 85°C.

What is the dynamic resistance of HZS6B2TA-E and why does it matter?

The HZS6B2TA-E has a maximum dynamic resistance of 2.0 Ω at I_Z = 5 mA. This low r_d minimizes output voltage variation under changing load currents - critical for maintaining accuracy in precision reference and feedback applications where even 1 mA current shift would otherwise cause >2 mV drift.

How is polarity identified on the HZS6B2TA-E package?

The HZS6B2TA-E uses a lake-blue cathode band to identify the cathode terminal (Pin 1). The anode (Pin 2) is the unmarked lead. This marking aligns with JEITA standard GRZZ0002ZC-A and is visible on the glass body - essential for correct orientation during manual or automated placement.

Is HZS6B2TA-E RoHS compliant?

Yes, the HZS6B2TA-E complies with the EU RoHS Directive. Renesas confirms environmental compliance for the HZS Series in accordance with applicable regulations, including restriction of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE substances - verified through material declarations and third-party testing.

HZS6B2TA-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:: -

HZS6B2TA-E FAQ

1.How can I place an order for HZS6B2TA-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZS6B2TA-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 HZS6B2TA-E reliable?

The price and inventory of HZS6B2TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6B2TA-E is usually 5 days.

3.What payment methods are accepted for HZS6B2TA-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6B2TA-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZS6B2TA-E?

HZS6B2TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZS6B2TA-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 HZS6B2TA-E?

For technical support, including HZS6B2TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6B2TA-E requirements.

6.How does Aetrix verify that HZS6B2TA-E is sourced from the original manufacturer or authorized distributors?

All HZS6B2TA-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 HZS6B2TA-E meets industry standards.

7.What is the process for return or replacement of HZS6B2TA-E?

All HZS6B2TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6B2TA-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 HZS6B2TA-E part is unused and in its original packaging.

Return procedure for HZS6B2TA-E:

1.Submit a request within 90 days.

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

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