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Renesas HZ6B2-1TD-E
- Part No.:
- HZ6B2-1TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6B2-1TD-E.pdf
- Description:
- DIODE ZENER FOR STABIL POWER
- Quantity:
- Payment:
- Shipping:
Inventory:12,500
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Product details
Overview
HZ6B2-1TD-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, with a nominal zener voltage of 5.6 V to 5.9 V, dynamic resistance of 80 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating of 175°C - deployed in high-stability power supplies and sensor biasing networks.
For engineers reviewing the HZ6B2-1TD-E datasheet, HZ6B2-1TD-E pinout, HZ6B2-1TD-E application, or HZ6B2-1TD-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 of standard HZ series), DO-35 package compatibility, thermal coefficient behavior, and leakage current limits under reverse bias.
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) and tight zener voltage tolerance (5.6–5.9 V at IZ = 0.5 mA) enable stable regulation under varying load conditions.
Designed for low-noise applications, the HZ6B2-1TD-E achieves reduced diode noise through optimized doping profile and junction geometry, with specified reverse leakage ≤1 μA at VR = 2.0 V and temperature coefficient ranging from −0.02 to +0.02 %/°C near 5.75 V nominal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.6 V min to 5.9 V max at IZ = 0.5 mA - defines stable reference point for feedback loops |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal design margin for PCB trace width and copper area |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - critical for ultra-low-current bias networks and battery-powered sensors |
| Junction Temperature (Tj) | −55°C to +175°C - supports operation in automotive engine compartments and industrial control enclosures |
| Noise Reduction | 1/3–1/10 of standard HZ series - directly improves SNR in precision ADC reference and op-amp feedback paths |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded package with orange body color and 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-impedance reference node | Connected to regulated output or op-amp inverting input; polarity must be observed for correct breakdown conduction |
| 2 (Anode) | Reference ground return path | Serves as current sink terminal; requires low-impedance connection to system ground or bias rail |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise reduced to 10–33% of legacy HZ-series parts - enables sub-16-bit ADC reference stability |
| Tight zener voltage tolerance | ±0.15 V window (5.6–5.9 V) at 0.5 mA - eliminates need for post-regulation trimming in factory calibration |
| Low dynamic impedance | 80 Ω max - maintains <0.5% output deviation across 10–100 μA load current swings |
| High thermal robustness | 175°C max junction temperature - supports uninterrupted operation in sealed industrial enclosures without forced cooling |
Applications
| Medical Sensor Biasing | Industrial PLC Analog Input |
|---|---|
Use Scenario: Providing stable excitation voltage to bridge-based pressure transducers in portable patient monitors. IC Role / Device Role / Timing Role: Low-noise voltage reference source for ratiometric signal conditioning circuitry. Use Value: Enables 0.1% full-scale accuracy over −20°C to +70°C ambient without active compensation. | Use Scenario: Generating precise 5.0 V reference for 12-bit SAR ADCs in modular I/O modules. IC Role / Device Role / Timing Role: Passive zener reference replacing higher-cost IC references where drift <50 ppm/°C is acceptable. Use Value: Reduces BOM cost by 65% versus LM4040-based solutions while maintaining ±0.5% initial accuracy. |
| Automotive Cabin Control | Test & Measurement Equipment |
Use Scenario: Stabilizing microcontroller VREF inputs in HVAC control units exposed to engine bay thermal cycling. IC Role / Device Role / Timing Role: Temperature-compensated voltage clamp protecting ADC reference rail from supply ripple. Use Value: Maintains <±1 LSB error across −40°C to +125°C ambient due to flat temperature coefficient near 5.75 V. | Use Scenario: Calibrating benchtop multimeter front-end gain stages requiring traceable DC reference stability. IC Role / Device Role / Timing Role: Primary voltage standard in self-calibration sequence during power-up. Use Value: Delivers 100-hour stability better than 20 ppm after 48-hour burn-in, verified per ANSI/NCSL Z540. |
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 |
|---|---|---|---|
| 1N4734A | Zener voltage 5.6 V ±5%, rd = 9 Ω typical but higher noise; Pd = 1 W, DO-41 package | Higher power handling but no low-noise optimization; unsuitable for sub-100 nV/√Hz designs | Select only when thermal margin >600 mW required and noise floor is not constrained |
| BZX55C5V6 | Zener voltage 5.6 V ±5%, rd = 40 Ω typical, leakage ≤5 μA at 1 V; DO-35 package, lower cost | Lacks documented noise reduction; tighter VZ tolerance not guaranteed across batch | Acceptable for non-critical references where cost dominates and SNR >60 dB is sufficient |
Compared with 1N4734A and BZX55C5V6, the HZ6B2-1TD-E delivers uniquely low noise and tighter VZ distribution at 400 mW rating, making it optimal for metrology-grade analog front-ends where spectral purity and initial accuracy outweigh raw power capacity.
Availability
HZ6B2-1TD-E is available at Aetrix Electronics and suitable for medical sensor biasing, industrial PLC analog input, and automotive cabin control requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZ6B2-1TD-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 delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
The HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in precision analog systems where conventional Zeners introduce unacceptable signal degradation.
FAQ
What is the exact zener voltage range for HZ6B2-1TD-E at 0.5 mA test current?
The HZ6B2-1TD-E has a guaranteed zener voltage range of 5.6 V minimum to 5.9 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V window reflects tighter binning than standard Zeners and supports high-accuracy feedback without external trimming. The HZ6B2-1TD-E datasheet specifies this range on page 2 of REJ03G0182-0300 Rev.3.00.
Does HZ6B2-1TD-E have a documented noise specification compared to standard Zener diodes?
Yes - the HZ6B2-1TD-E datasheet states its noise level is approximately 1/3 to 1/10 that of the legacy HZ series. This reduction results from proprietary junction design and process control, enabling use in high-resolution ADC references and low-drift op-amp circuits where broadband noise would otherwise degrade measurement fidelity. The HZ6B2-1TD-E achieves this without increasing dynamic resistance or sacrificing thermal stability.
What is the maximum allowable reverse leakage current for HZ6B2-1TD-E at 2.0 V applied voltage?
The HZ6B2-1TD-E exhibits reverse leakage current of ≤1 μA maximum when VR = 2.0 V and Ta = 25°C, as confirmed in the Electrical Characteristics table on page 2 of REJ03G0182-0300. This low leakage supports ultra-low-power biasing in battery-operated instrumentation and ensures minimal error contribution in high-impedance reference divider networks. The HZ6B2-1TD-E maintains this spec across its full operating temperature range.
Is HZ6B2-1TD-E compatible with DO-35 footprint layouts used for other Renesas Zener diodes?
Yes - the HZ6B2-1TD-E uses the DO-35 package (JEITA code GRZZ0002ZB-A) with standardized dimensions: φD = 2.0 mm, L = 26.0 mm, E = 4.2 mm. Its orange body and navy-blue cathode band match HZ-L Series visual identification. The HZ6B2-1TD-E shares identical mechanical mounting requirements and solder thermal profiles with other DO-35 Zeners, enabling direct layout reuse in existing designs.
What is the temperature coefficient behavior of HZ6B2-1TD-E near its nominal zener voltage?
The HZ6B2-1TD-E exhibits a zener voltage temperature coefficient (γZ) between −0.02 %/°C and +0.02 %/°C near its 5.75 V nominal point, as shown in Figure 2 of the datasheet. This near-zero TC minimizes drift in precision references across −40°C to +125°C ambient, making the HZ6B2-1TD-E especially suitable for unregulated environments where active compensation is impractical. The HZ6B2-1TD-E achieves this via optimized doping and junction depth control.
HZ6B2-1TD-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:
- -
HZ6B2-1TD-E FAQ
1.How can I place an order for HZ6B2-1TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6B2-1TD-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 HZ6B2-1TD-E reliable?
The price and inventory of HZ6B2-1TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6B2-1TD-E is usually 5 days.
3.What payment methods are accepted for HZ6B2-1TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6B2-1TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6B2-1TD-E?
HZ6B2-1TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6B2-1TD-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 HZ6B2-1TD-E?
For technical support, including HZ6B2-1TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6B2-1TD-E requirements.
6.How does Aetrix verify that HZ6B2-1TD-E is sourced from the original manufacturer or authorized distributors?
All HZ6B2-1TD-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 HZ6B2-1TD-E meets industry standards.
7.What is the process for return or replacement of HZ6B2-1TD-E?
All HZ6B2-1TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6B2-1TD-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 HZ6B2-1TD-E part is unused and in its original packaging.
Return procedure for HZ6B2-1TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ6B2-1TD-E Tags
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