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

Renesas HZS6B2L-JTA-E

Name: HZS6B2L-JTA-E
Brand: Renesas
SKU: HZS6B2L-JTA-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HZS6B2L-JTA-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

Package:: -

Datasheet:: HZS6B2L-JTA-E.pdf

Description:: DIODE ZENER

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Product details

Overview

HZS6B2L-JTA-E from ROHM Semiconductor is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies, with a nominal zener voltage of 5.6 V (min 5.6 V, max 5.9 V), dynamic resistance of 40 Ω at 5 mA, maximum power dissipation of 400 mW, and reverse current ≤2.0 µA at 2.0 V. It supports high-speed automatic insertion on 5 mm-pitch PCBs.

For engineers reviewing the HZS6B2L-JTA-E datasheet, HZS6B2L-JTA-E pinout, HZS6B2L-JTA-E application, or HZS6B2L-JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low dynamic impedance for stable regulation under load transients, junction temperature rating up to 200°C, and compatibility with automated assembly processes requiring axial-leaded TO-226AA (mini-MELF) packaging.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and input conditions. Its epitaxial planar construction ensures tight V_Z tolerance, low leakage (≤2.0 µA at VR = 2.0 V), and predictable temperature coefficient behavior - critical for analog sensing and feedback loop stability.

The device is rated for continuous DC operation only, with specified electrical characteristics measured at T_a = 25°C and validated using DC test conditions. Its thermal derating curve shows linear power dissipation reduction above 25°C ambient, reaching zero at 180°C on standard FR-1 PCB mounting per publication data.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.6 V min to 5.9 V max at I_Z = 5 mA - defines regulated output range for feedback references
Dynamic Resistance (r_d)	40 Ω max at I_Z = 5 mA - determines output voltage variation under load current changes
Reverse Current (I_R)	≤2.0 µA max at V_R = 2.0 V - ensures minimal quiescent power loss in standby
Power Dissipation (P_d)	400 mW max at T_a = 25°C - sets upper limit for continuous thermal design margin
Junction Temperature (T_j)	200°C max - enables operation in high-temperature industrial environments without derating
Package	TO-226AA (mini-MELF) - supports 5 mm-pitch high-speed axial insertion and reliable thermal transfer

Pinout & Package

Package: TO-226AA (mini-MELF), axial-leaded glass package with cathode band marking. Dimensions conform to JEDEC TO-226AA outline; leads spaced 5 mm for automated insertion.

Pin/Terminal	Circuit Role	Design Meaning
1 (Cathode)	Negative terminal in reverse-bias regulation	Connected to higher potential side of regulated node; marked by cathode band
2 (Anode)	Positive terminal in reverse-bias regulation	Connected to circuit ground or lower potential reference point

Key Features

Feature	Design Value
Low dynamic impedance	40 Ω max ensures <10 mV output shift per 0.4 mA load change - improves regulation accuracy
Tight zener voltage tolerance	±0.15 V (5.6–5.9 V) enables precise reference setting without external trimming
High junction temperature rating	200°C allows use in enclosed industrial enclosures or near heat-generating components
Automated insertion compatibility	5 mm lead pitch and TO-226AA outline support high-throughput SMT-compatible through-hole placement

Applications

Industrial Power Supply Feedback	Automotive Sensor Reference
Use Scenario: Regulating output voltage in isolated flyback converters for PLC I/O modules. IC Role / Device Role / Timing Role: Zener diode provides primary-side voltage reference for optocoupler-coupled feedback loop. Use Value: 40 Ω dynamic resistance minimizes output ripple under transient load steps, maintaining ±1% regulation.	Use Scenario: Stabilizing bias voltage for analog pressure sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Supplies stable 5.6 V reference to op-amp input stage under wide ambient temperature swings. Use Value: 200°C junction rating ensures reliability during under-hood thermal cycling without derating.
Consumer Appliance SMPS	Medical Diagnostic Equipment
Use Scenario: Secondary-side overvoltage protection clamp in AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Acts as shunt regulator to limit output voltage during no-load or fault conditions. Use Value: 400 mW power rating absorbs short-duration surges without thermal runaway.	Use Scenario: Precision voltage reference for ADC front-end in portable ultrasound imaging systems. IC Role / Device Role / Timing Role: Provides low-noise, low-drift reference for 12-bit analog-to-digital conversion. Use Value: ≤2.0 µA reverse leakage prevents reference loading errors in high-impedance sensor interfaces.

Industrial Power Supply Feedback

Automotive Sensor Reference

Use Scenario: Regulating output voltage in isolated flyback converters for PLC I/O modules.

IC Role / Device Role / Timing Role: Zener diode provides primary-side voltage reference for optocoupler-coupled feedback loop.

Use Value: 40 Ω dynamic resistance minimizes output ripple under transient load steps, maintaining ±1% regulation.

Use Scenario: Stabilizing bias voltage for analog pressure sensor signal conditioning in engine control units.

IC Role / Device Role / Timing Role: Supplies stable 5.6 V reference to op-amp input stage under wide ambient temperature swings.

Use Value: 200°C junction rating ensures reliability during under-hood thermal cycling without derating.

Consumer Appliance SMPS

Medical Diagnostic Equipment

Use Scenario: Secondary-side overvoltage protection clamp in AC/DC adapters for smart home devices.

IC Role / Device Role / Timing Role: Acts as shunt regulator to limit output voltage during no-load or fault conditions.

Use Value: 400 mW power rating absorbs short-duration surges without thermal runaway.

Use Scenario: Precision voltage reference for ADC front-end in portable ultrasound imaging systems.

IC Role / Device Role / Timing Role: Provides low-noise, low-drift reference for 12-bit analog-to-digital conversion.

Use Value: ≤2.0 µA reverse leakage prevents reference loading errors in high-impedance sensor interfaces.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4734A	Zener voltage 5.6 V (±5%), r_d = 5 Ω typical, P_d = 1 W, DO-41 package	Higher power rating but larger footprint; not optimized for 5 mm-pitch insertion	Select when higher surge energy handling is required and board space permits DO-41
BZX55C5V6	Zener voltage 5.6 V (±5%), r_d = 40 Ω max, P_d = 500 mW, DO-35 package	Same dynamic impedance but different thermal profile and lead spacing (2.54 mm)	Choose if legacy DO-35 footprint compatibility is mandatory and mini-MELF insertion is unavailable

Compared with 1N4734A and BZX55C5V6, HZS6B2L-JTA-E offers tighter V_Z tolerance (±0.15 V vs. ±5%), identical r_d to BZX55C5V6 but optimized for 5 mm-pitch automation, and lower thermal resistance than DO-35 in convection-limited environments.

Availability

HZS6B2L-JTA-E is available at Aetrix Electronics and suitable for industrial power supply feedback, automotive sensor reference, and consumer appliance SMPS requiring stable component supply with consistent parametric performance across production lots.

Supply support for HZS6B2L-JTA-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

ROHM Semiconductor is a Japanese semiconductor manufacturer specializing in analog, power, and sensor solutions for automotive, industrial, and consumer markets.

The HZS Series is part of ROHM's discrete Zener diode portfolio, engineered for high-precision voltage stabilization in compact, thermally robust packages suited for automated manufacturing.

FAQ

What is the exact zener voltage range for HZS6B2L-JTA-E?

The HZS6B2L-JTA-E has a guaranteed zener voltage range of 5.6 V minimum to 5.9 V maximum when tested at I_Z = 5 mA and T_a = 25°C. This grade (B2) reflects ±0.15 V tolerance around the nominal 5.6 V value, confirmed in the Electrical Characteristics table of the ADE-208-120A(Z) datasheet.

Is HZS6B2L-JTA-E suitable for DC-only applications?

Yes, HZS6B2L-JTA-E is specified and tested exclusively under DC conditions, as explicitly noted in the datasheet. Its electrical characteristics - including V_Z, r_d, and I_R - are valid only for steady-state DC operation; it is not characterized for AC or pulsed operation.

What is the maximum allowable reverse voltage before breakdown for HZS6B2L-JTA-E?

The HZS6B2L-JTA-E begins regulating at its specified zener voltage (5.6–5.9 V). The absolute maximum reverse voltage is not defined separately; operation above V_Z must remain within the 400 mW power limit and thermal constraints. Exceeding V_Z without current limiting risks irreversible damage.

Does HZS6B2L-JTA-E have a specified temperature coefficient?

Yes, the HZS6B2L-JTA-E exhibits a temperature coefficient of approximately +2 mV/°C near 5.6 V, as shown in Figure 2 of the datasheet. This positive TC means V_Z increases linearly with junction temperature, enabling predictable compensation in temperature-sensitive designs.

Can HZS6B2L-JTA-E be used in surface-mount designs?

No, HZS6B2L-JTA-E uses a TO-226AA (mini-MELF) axial-leaded glass package intended for through-hole mounting. It is not a surface-mount device and requires 5 mm-pitch hole spacing on the PCB; no SMD variant exists in the HZS Series for this grade.

HZS6B2L-JTA-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:: -

HZS6B2L-JTA-E FAQ

1.How can I place an order for HZS6B2L-JTA-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZS6B2L-JTA-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 HZS6B2L-JTA-E reliable?

The price and inventory of HZS6B2L-JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6B2L-JTA-E is usually 5 days.

3.What payment methods are accepted for HZS6B2L-JTA-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6B2L-JTA-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZS6B2L-JTA-E?

HZS6B2L-JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZS6B2L-JTA-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 HZS6B2L-JTA-E?

For technical support, including HZS6B2L-JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6B2L-JTA-E requirements.

6.How does Aetrix verify that HZS6B2L-JTA-E is sourced from the original manufacturer or authorized distributors?

All HZS6B2L-JTA-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 HZS6B2L-JTA-E meets industry standards.

7.What is the process for return or replacement of HZS6B2L-JTA-E?

All HZS6B2L-JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6B2L-JTA-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 HZS6B2L-JTA-E part is unused and in its original packaging.

Return procedure for HZS6B2L-JTA-E:

1.Submit a request within 90 days.

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

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