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Renesas HZ5BLL-E
- Part No.:
- HZ5BLL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ5BLL-E.pdf
- Description:
- DIODE ZENER 0.25W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZ5BLL-E from Renesas is a silicon planar Zener diode engineered for hard-knee, low-noise voltage reference applications with nominal zener voltage 4.6–5.0 V at 0.5 mA, dynamic impedance 380 Ω (typ.) at 3.0 mA, and temperature coefficient –0.02 to –0.05 mV/°C - deployed in precision analog front-ends and low-power sensor biasing circuits.
For engineers reviewing the HZ5BLL-E datasheet, HZ5BLL-E pinout, HZ5BLL-E application, or HZ5BLL-E equivalent, key selection criteria include its sharp breakdown knee below 1 µA, sub-100 nA reverse leakage at 0.5 V below VZ, DO-35 package compatibility, and verified low-noise performance in 1 nA–1 mA operating range.
Technical Context
The HZ5BLL-E employs a planar diffusion process to achieve semi-logarithmic VZ–IZ linearity from 1 nA to 1 mA, enabling stable regulation at microampere-level currents where conventional Zeners exhibit soft knees. Its junction design minimizes generation-recombination noise and yields lower temperature drift than standard Zener families.
It operates with a specified test current IZT of 3.0 mA for VZ measurement and IZK of 0.5 µA for knee characterization; dynamic impedance is measured at both IZT (ZZT = 380 Ω typ.) and IZK (ZZK = 50 Ω max), confirming low impedance across two decades of current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.6–5.0 V at IZ = 0.5 mA - defines precise DC reference level for low-current bias networks |
| Dynamic Impedance ZZT | 380 Ω typical at IZT = 3.0 mA - ensures minimal output voltage shift under load transients |
| Knee Impedance ZZK | ≤50 Ω max at IZK = 0.5 µA - enables stable regulation down to nanoampere quiescent currents |
| Reverse Leakage IR | ≤100 nA at VR = 0.5 V below VZ - reduces error in high-impedance reference dividers |
| Temp. Coefficient γZ | –0.02 to –0.05 mV/°C - supports <±1 mV drift over –25°C to +75°C ambient |
| Power Dissipation Pd | 250 mW max at Ta = 25°C - allows use in compact PCB layouts without forced cooling |
| Junction Temp. Tj | 175°C max - supports operation in sealed enclosures or near heat sources |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), body color verdure, cathode identified by navy-blue band. Dimensions: φD = 2.0 mm max, L = 26.0 mm min, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated voltage node; polarity must be observed to avoid forward conduction |
| 2 (non-banded end) | Anode | Typically grounded or tied to lowest system potential; establishes reference return path |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee breakdown | VZ linearity maintained from 1 nA to 1 mA - eliminates need for auxiliary bias current in ultra-low-power references |
| Low dynamic impedance | 380 Ω at 3 mA - improves PSRR and load regulation vs. legacy Zeners (≈10× lower than standard types) |
| Low noise | Generation-recombination noise suppressed via planar junction - critical for audio preamp and ADC reference stages |
| Negative tempco | –0.02 to –0.05 mV/°C - enables temperature-compensated reference designs using positive-TC components |
Applications
| Medical Sensor Biasing | Portable Instrument Reference |
|---|---|
Use Scenario: Biasing bridge-based pressure sensors in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Provides stable 4.8 V reference for instrumentation amplifier input stage. Use Value: Sub-100 nA leakage prevents signal offset drift; hard knee ensures accuracy even during intermittent wake-up cycles. | Use Scenario: Voltage reference for 16-bit SAR ADC in handheld multimeters. IC Role / Device Role / Timing Role: Serves as primary reference source for ADC conversion accuracy. Use Value: Low 380 Ω dynamic impedance maintains reference stability under varying digital switching loads. |
| Industrial RTD Signal Conditioning | Low-Power IoT Node Regulation |
Use Scenario: Excitation and reference for 3-wire Pt100 RTD circuits in field transmitters. IC Role / Device Role / Timing Role: Supplies matched excitation and reference voltage to eliminate ratiometric errors. Use Value: Tight VZ tolerance (±0.2 V) and low tempco ensure <0.1% total error over –40°C to +85°C. | Use Scenario: Regulation of MCU and RF transceiver supply in NB-IoT endpoint nodes. IC Role / Device Role / Timing Role: Functions as shunt regulator in ultra-low-quiescent linear supply chain. Use Value: Stable operation down to 1 µA enables >10-year battery life while maintaining 4.8 V ±10 mV accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5229B | VZ = 4.3–4.7 V; ZZT = 25 Ω at 20 mA; higher leakage (>500 nA at 0.5 V below VZ) | Higher power dissipation rating (500 mW); unsuitable for sub-µA biasing | Prefer HZ5BLL-E when nanoampere-level leakage or hard-knee behavior is required |
| BZX55-C4V7 | VZ = 4.5–4.9 V; ZZT = 70 Ω at 5 mA; tempco ≈ –2.5 mV/°C | Higher tempco limits use above 40°C ambient; no verified sub-µA knee data | Choose HZ5BLL-E for applications demanding <±0.5 mV/°C drift or operation below 1 µA |
Compared with 1N5229B and BZX55-C4V7, the HZ5BLL-E delivers superior low-current regulation fidelity, tighter thermal drift control, and verified noise performance - making it the preferred choice for precision, low-power analog systems where reference integrity directly impacts measurement resolution.
Availability
HZ5BLL-E is available at Aetrix Electronics and suitable for medical sensor biasing, portable instrument reference, and industrial RTD signal conditioning requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for HZ5BLL-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 enterprise applications.
The HZ-LL Series was designed specifically for ultra-low-noise, hard-knee Zener reference applications in battery-constrained and high-precision analog systems - emphasizing sub-microampere regulation fidelity and thermal stability.
FAQ
What is the nominal zener voltage range of the HZ5BLL-E?
The HZ5BLL-E has a nominal zener voltage range of 4.6 V to 5.0 V, specified at a test current of 0.5 mA. This range reflects manufacturing tolerance and ensures consistent reference performance across production lots. The device achieves tight regulation within this band even at currents as low as 1 nA, supporting precision analog designs where absolute voltage accuracy is critical. HZ5BLL-E's VZ stability is further enhanced by its low temperature coefficient and hard-knee characteristics.
How does the HZ5BLL-E differ from standard Zener diodes in low-current operation?
The HZ5BLL-E exhibits semi-logarithmic VZ–IZ linearity from 1 nA to 1 mA - a feature absent in conventional Zeners, which show soft, poorly defined knees below 10 µA. This enables reliable regulation in ultra-low-power circuits such as energy-harvesting sensors and sleep-mode bias networks. HZ5BLL-E's ZZK ≤50 Ω at 0.5 µA and IR ≤100 nA at 0.5 V below VZ directly enable this capability, distinguishing it from generic Zeners like 1N4732A or BZX55 series.
What is the maximum power dissipation rating for the HZ5BLL-E?
The HZ5BLL-E has a maximum power dissipation rating of 250 mW at an ambient temperature of 25°C. Derating is required above this temperature per the published curve (Fig.3), reaching zero dissipation at 175°C ambient. This rating supports use in compact, unventilated enclosures when operated below 1 mA, and aligns with the DO-35 package's thermal mass. HZ5BLL-E's low dynamic impedance ensures minimal self-heating even under transient load conditions.
Is the HZ5BLL-E suitable for low-noise analog reference applications?
Yes - the HZ5BLL-E was explicitly characterized for low-noise operation, with generation-recombination noise minimized through its planar junction structure. Its noise performance is approximately one-tenth that of conventional Zeners in the 1 nA–1 mA range, as confirmed in Renesas' characterization data. When used as a reference in precision op-amp circuits or ADC front-ends, HZ5BLL-E contributes negligible added noise, making it suitable for 16-bit+ measurement systems. This low-noise behavior is intrinsic to the HZ5BLL-E device physics and layout.
What package type and marking does the HZ5BLL-E use?
The HZ5BLL-E uses the DO-35 glass axial package (JEITA code GRZZ0002ZB-A), with verdure-colored body and navy-blue cathode band. Pin 1 (cathode) is identified by the banded end; Pin 2 (anode) is the unmarked end. The package complies with SC-40 mechanical standards, measures φD ≤2.0 mm and L ≥26.0 mm, and has a typical mass of 0.13 g. This standardized DO-35 footprint ensures compatibility with legacy automated assembly equipment and manual prototyping workflows.
HZ5BLL-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:
- -
HZ5BLL-E FAQ
1.How can I place an order for HZ5BLL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ5BLL-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 HZ5BLL-E reliable?
The price and inventory of HZ5BLL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ5BLL-E is usually 5 days.
3.What payment methods are accepted for HZ5BLL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ5BLL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ5BLL-E?
HZ5BLL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ5BLL-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 HZ5BLL-E?
For technical support, including HZ5BLL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ5BLL-E requirements.
6.How does Aetrix verify that HZ5BLL-E is sourced from the original manufacturer or authorized distributors?
All HZ5BLL-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 HZ5BLL-E meets industry standards.
7.What is the process for return or replacement of HZ5BLL-E?
All HZ5BLL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ5BLL-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 HZ5BLL-E part is unused and in its original packaging.
Return procedure for HZ5BLL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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