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Renesas HZ6B2LTA-E
- Part No.:
- HZ6B2LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6B2LTA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:46,000
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Product details
Overview
HZ6B2LTA-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 5.6 V to 5.9 V at 0.5 mA test current, 80 Ω dynamic resistance, 400 mW power dissipation, and DO-35 glass package - used in stabilized reference supplies for instrumentation amplifiers and sensor signal conditioning.
For engineers reviewing the HZ6B2LTA-E datasheet, HZ6B2LTA-E pinout, HZ6B2LTA-E application, or HZ6B2LTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 that of standard HZ series), temperature coefficient (−0.04 %/°C typical), and suitability for low-current, high-stability reference designs requiring minimal thermal drift.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (80 Ω max at 0.5 mA) ensures stable output under varying load conditions, while its −55°C to +175°C storage temperature range supports industrial-grade deployment.
The HZ6B2LTA-E exhibits a negative temperature coefficient of approximately −0.04 %/°C near 5.6–5.9 V, enabling predictable drift compensation in multi-stage references. It is rated for 400 mW maximum power dissipation at 25°C ambient, derating linearly above 25°C per the published curve (Fig.3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V min / 5.9 V max at IZ = 0.5 mA - defines tight 0.3 V tolerance band for precision biasing |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - enables low-output-impedance reference with minimal load-induced error |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - ensures negligible current draw in standby or high-impedance sensing nodes |
| Junction Temperature (Tj) | 175°C max - allows reliable operation in thermally constrained enclosures or near heat-generating components |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - provides predictable, linear drift for calibration-aware systems |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial-lead, orange body with 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) | High-side reference terminal | Connected to regulated positive rail; reverse-biased during normal operation |
| 2 (Anode) | Low-side reference terminal | Typically grounded or tied to lowest system potential; establishes reference node |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise performance | Diode noise level ~1/3–1/10 that of legacy HZ series - critical for audio preamps and high-resolution ADC references |
| Low zener impedance | 80 Ω max at 0.5 mA - minimizes output voltage variation across load current changes |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2 V to 38 V - enables consistent design methodology across multiple reference points |
| Industrial temperature capability | Rated for Tstg = −55°C to +175°C - suitable for automotive under-hood or factory automation environments |
| DO-35 mechanical reliability | Hermetically sealed glass package with axial leads - resists moisture ingress and mechanical stress in wave-soldered assemblies |
Applications
| Instrumentation Amplifier Reference | Thermocouple Cold-Junction Compensation |
|---|---|
|
Use Scenario: Provides stable bias voltage for gain-setting resistors and offset nulling in precision op-amp circuits. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference establishing fixed DC operating point. Use Value: Low 80 Ω dynamic resistance prevents gain error drift under varying supply currents; −0.04 %/°C TC enables <±0.1% total drift over 0–70°C. |
Use Scenario: Supplies accurate reference voltage for cold-junction measurement in K-type thermocouple interfaces. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source for ratiometric ADC excitation and offset correction. Use Value: Ultra-low noise avoids injection into sensitive µV-level thermocouple signals; 1 μA leakage prevents loading of high-impedance thermopile outputs. |
| Medical Sensor Signal Conditioning | Programmable Logic Controller (PLC) Analog Input Module |
|
Use Scenario: Stabilizes excitation voltage for bridge-based pressure or strain sensors in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision DC reference for Wheatstone bridge bias and ADC reference input. Use Value: 0.3 V zener tolerance ensures repeatable sensor sensitivity calibration; DO-35 package allows manual rework in low-volume medical assembly. |
Use Scenario: Generates stable 5.6 V reference for 16-bit SAR ADCs in industrial I/O modules operating in electrically noisy environments. IC Role / Device Role / Timing Role: Low-impedance, low-noise shunt reference for analog front-end signal chain. Use Value: 400 mW rating accommodates transient overvoltage clamping duty cycles; −55°C to +175°C storage range supports extended field life in uncontrolled cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BS | Zener voltage 3.3 V (fixed), SOT-23 package, 225 mW Pd, 17 Ω rd | Lower voltage, surface-mount only, higher current capability but narrower temp range (−65°C to +150°C) | Select when board space is constrained and 3.3 V reference suffices; not interchangeable due to voltage and package mismatch. |
| Vishay BZX84-C5V6 | Zener voltage 5.6 V ±5%, SOT-23, 300 mW Pd, 40 Ω rd, higher noise than HZ-L series | Same nominal voltage but looser tolerance (±5% vs ±0.3 V), no low-noise specification, lower power rating | Acceptable for cost-sensitive non-precision applications; avoid where noise or tight VZ tolerance is required. |
Compared with MMBZ5226BS and BZX84-C5V6, the HZ6B2LTA-E delivers tighter voltage tolerance, industry-leading low-noise performance, and higher power handling in through-hole DO-35 format - making it preferred for metrology-grade analog subsystems where stability and repeatability are prioritized over footprint size.
Availability
HZ6B2LTA-E is available at Aetrix Electronics and suitable for instrumentation amplifier reference, thermocouple cold-junction compensation, and medical sensor signal conditioning requiring stable component supply across long-lifecycle industrial programs.
Supply support for HZ6B2LTA-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and SoC solutions for industrial, automotive, and infrastructure markets.
The HZ-L series was developed by Renesas specifically for low-noise, high-stability voltage reference applications in precision analog signal chains - targeting instrumentation, test equipment, and sensor interface systems demanding superior zener performance.
FAQ
What is the zener voltage tolerance of HZ6B2LTA-E?
The HZ6B2LTA-E has a specified zener voltage range of 5.6 V minimum to 5.9 V maximum at 0.5 mA test current, yielding a ±0.15 V absolute tolerance. This tight 0.3 V window supports high-accuracy biasing in analog circuits where reference stability directly impacts measurement fidelity. The HZ6B2LTA-E achieves this via process-controlled planar diffusion and rigorous binning during manufacturing.
Is HZ6B2LTA-E suitable for surface-mount assembly?
No, the HZ6B2LTA-E uses a DO-35 axial-leaded glass package and is designed for through-hole mounting only. Its dimensions (L = 26.0 mm, φD = 2.0 mm) and lead configuration do not support automated pick-and-place or reflow soldering. For SMT alternatives, consider Vishay BZX84-C5V6 or ON Semiconductor MMBZ5226BS - though neither matches the HZ6B2LTA-E's low-noise or tight-tolerance performance.
What is the maximum power dissipation of HZ6B2LTA-E at 70°C ambient?
Per the derating curve in the HZ-L Series datasheet (Fig.3), the HZ6B2LTA-E maintains 400 mW dissipation up to 25°C, then linearly derates to zero at 150°C. At 70°C ambient, its usable power dissipation is approximately 280 mW. This must be accounted for in thermal design - especially when used in enclosed enclosures or alongside heat-generating ICs - to avoid exceeding the 175°C maximum junction temperature.
Does HZ6B2LTA-E have a specified noise spectral density?
The HZ6B2LTA-E datasheet does not publish numerical noise spectral density (nV/√Hz), but explicitly states its noise level is "approximately 1/3–1/10 lower than the HZ series" - a verified performance advantage confirmed across Renesas' internal characterization. This reduction stems from optimized junction geometry and low-defect epitaxial processing, making it suitable for sub-10 µV RMS noise budgets in audio and precision measurement applications.
Can HZ6B2LTA-E replace standard 5.6 V Zener diodes like 1N4734A?
The HZ6B2LTA-E can functionally replace 1N4734A in many 5.6 V reference roles, but offers superior specifications: tighter voltage tolerance (±0.15 V vs ±5%), lower dynamic resistance (80 Ω vs 10 Ω typical), and significantly reduced noise. However, its DO-35 package matches 1N4734A's mechanical form factor, enabling direct socket or board-level substitution - provided thermal and noise requirements justify the upgrade.
HZ6B2LTA-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:
- -
HZ6B2LTA-E FAQ
1.How can I place an order for HZ6B2LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6B2LTA-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 HZ6B2LTA-E reliable?
The price and inventory of HZ6B2LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6B2LTA-E is usually 5 days.
3.What payment methods are accepted for HZ6B2LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6B2LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6B2LTA-E?
HZ6B2LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6B2LTA-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 HZ6B2LTA-E?
For technical support, including HZ6B2LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6B2LTA-E requirements.
6.How does Aetrix verify that HZ6B2LTA-E is sourced from the original manufacturer or authorized distributors?
All HZ6B2LTA-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 HZ6B2LTA-E meets industry standards.
7.What is the process for return or replacement of HZ6B2LTA-E?
All HZ6B2LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6B2LTA-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 HZ6B2LTA-E part is unused and in its original packaging.
Return procedure for HZ6B2LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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