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Renesas HZS9B3LTA-E
- Part No.:
- HZS9B3LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS9B3LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
HZS9B3LTA-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 8.7–9.1 V, 400 mW power dissipation, and dynamic resistance of 60 Ω at 6.0 mA test current - deployed in stabilized power supplies, sensor biasing, and instrumentation front-ends.
For engineers reviewing the HZS9B3LTA-E datasheet, HZS9B3LTA-E pinout, HZS9B3LTA-E application, or HZS9B3LTA-E equivalent, key selection criteria include its low noise performance (≈1/3–1/10 of HZ series), tight zener voltage tolerance, low leakage (<1 μA at VR = 2.0 V), and suitability for high-speed automatic insertion on 5 mm-pitch PCBs.
Technical Context
This device operates as a two-terminal voltage reference using silicon planar junction technology with controlled doping and geometry to minimize shot and thermal noise. Its zener breakdown mechanism dominates in the 8.7–9.1 V range, yielding stable regulation with low temperature coefficient near zero crossing (~0.02 %/°C typical).
The HZS9B3LTA-E is rated for junction temperatures up to 200°C and storage from −55°C to +175°C, supporting operation in industrial environments. It exhibits low zener impedance (60 Ω) and reverse leakage ≤1 μA at 2.0 V, enabling high-accuracy biasing without significant loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.7–9.1 V at IZ = 0.5 mA - defines precise DC reference level for feedback loops or ADC reference buffers. |
| Dynamic Resistance (rd) | 60 Ω at IZ = 6.0 mA - ensures minimal output voltage shift under load transients in regulated supplies. |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with moderate heatsinking. |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - prevents signal path contamination in high-impedance sensor interfaces. |
| Junction Temperature (Tj) | 200°C maximum - enables reliable use in enclosed industrial enclosures with elevated ambient temperatures. |
| Zener Noise Level | ≈1/3–1/10 of HZ series - directly reduces RMS noise in precision references, critical for 16-bit+ data acquisition. |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial-leaded, 5 mm pitch, 2.0 mm diameter body, 26 mm lead length - designed for high-speed automatic insertion and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation. |
| 2 (Anode) | Reference ground return | Completes bias path; low-inductance connection minimizes noise coupling in sensitive analog stages. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Reduces broadband voltage noise by factor of 3–10 vs. legacy HZ series - improves SNR in precision DAC/ADC references. |
| Tight VZ tolerance band | ±0.2 V over 8.7–9.1 V range - eliminates need for post-calibration trimming in factory-set voltage references. |
| Low zener impedance | 60 Ω at 6 mA - maintains regulation accuracy under ±10% load current variation in linear regulators. |
| High reliability construction | 200°C max junction temperature rating - supports extended lifetime in thermally constrained industrial modules. |
| Automated assembly compatibility | 5 mm pitch, MHD package - enables direct integration into high-volume SMT-compatible through-hole production lines. |
Applications
| Industrial Power Monitoring | Medical Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Real-time monitoring of 9 V rail stability in PLC I/O modules with ±0.5% accuracy requirement. IC Role / Device Role / Timing Role: Primary voltage reference for ADC input scaling and comparator threshold setting. Use Value: Low dynamic resistance (60 Ω) prevents gain error drift during transient load changes on shared supply rails. |
Use Scenario: Biasing photodiode amplifiers in portable pulse oximeters requiring sub-μV noise floor. IC Role / Device Role / Timing Role: Low-noise DC reference for transimpedance amplifier feedback network. Use Value: 1/3–1/10 lower noise than HZ-series diodes directly improves signal-to-noise ratio in weak-current detection. |
| Test Equipment Reference Supply | Automotive ECU Sensor Calibration |
|
Use Scenario: Stable 9 V reference for benchtop multimeter internal DMM reference chain. IC Role / Device Role / Timing Role: Precision shunt reference in dual-slope integrator front-end. Use Value: Tight 8.7–9.1 V tolerance and low leakage (<1 μA) ensure <0.01% full-scale error over 10-year calibration interval. |
Use Scenario: On-board voltage reference for oxygen sensor heater control circuit in Tier-1 engine control units. IC Role / Device Role / Timing Role: Zener clamp in heater driver feedback loop for thermal stability. Use Value: 200°C junction rating allows uninterrupted operation during under-hood thermal soak testing at 150°C ambient. |
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 |
|---|---|---|---|
| BZX84-C9V1 (Nexperia) | Surface-mount SOT-23, 9.1 V ±5%, rd = 90 Ω, Pd = 300 mW | Not suitable for through-hole auto-insertion; higher impedance limits load regulation in high-precision supplies. | Select when board space is constrained and SMT assembly is mandatory; verify thermal derating above 70°C ambient. |
| 1N4739A (ON Semiconductor) | Through-hole DO-41, 9.1 V ±5%, rd = 8 Ω, Pd = 1 W, higher noise than HZS-L series | Higher power but significantly noisier - unsuitable for low-noise instrumentation where HZS9B3LTA-E's noise advantage is critical. | Choose only when >400 mW dissipation is required and noise budget permits ≥3× increase; not drop-in for noise-sensitive designs. |
Compared with BZX84-C9V1 and 1N4739A, the HZS9B3LTA-E uniquely balances ultra-low noise, tight VZ tolerance, and 5 mm-pitch through-hole manufacturability - making it optimal for industrial test gear and medical sensors where both precision and assembly efficiency matter.
Availability
HZS9B3LTA-E is available at Aetrix Electronics and suitable for industrial power monitoring, medical sensor signal conditioning, test equipment reference supplies, and automotive ECU sensor calibration requiring stable component supply across multi-year production cycles.
Supply support for HZS9B3LTA-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-L Series belongs to Renesas' precision discrete portfolio, engineered specifically for low-noise voltage reference and stabilization in measurement, instrumentation, and high-reliability power systems.
FAQ
What is the zener voltage range of the HZS9B3LTA-E?
The HZS9B3LTA-E has a specified zener voltage range of 8.7 V to 9.1 V at a test current of 0.5 mA. This tight tolerance band ensures consistent reference accuracy across production lots and supports applications demanding stable DC bias without post-manufacturing calibration. The value is measured under DC conditions per Renesas specification REJ03G0166-0300 Rev.3.00.
Does the HZS9B3LTA-E support high-speed automated insertion?
Yes, the HZS9B3LTA-E uses the MHD package with 5 mm lead pitch and axial-leaded configuration, explicitly designed for compatibility with high-speed automatic insertion equipment. Its mechanical dimensions - including 2.0 mm body diameter and standardized lead spacing - meet JEITA GRZZ0002ZC-A requirements for reliable pick-and-place and wave soldering in volume manufacturing.
How does the noise performance of HZS9B3LTA-E compare to standard Zener diodes?
The HZS9B3LTA-E delivers approximately 1/3 to 1/10 the noise level of the legacy HZ series Zener diodes, due to optimized silicon planar junction design and controlled fabrication processes. This reduction directly lowers RMS voltage noise in precision references, making HZS9B3LTA-E suitable for 16-bit+ data acquisition systems where noise floor impacts effective resolution.
What is the maximum power dissipation rating for HZS9B3LTA-E?
The HZS9B3LTA-E is rated for 400 mW maximum power dissipation at an ambient temperature of 25°C. Derating is required above this temperature, following the curve in Figure 3 of the datasheet (REJ03G0166-0300), where dissipation drops to ~200 mW at 70°C ambient - critical for thermal design in enclosed industrial enclosures.
Is HZS9B3LTA-E suitable for automotive under-hood applications?
The HZS9B3LTA-E supports junction temperatures up to 200°C and storage from −55°C to +175°C, meeting thermal requirements for many non-safety-critical automotive under-hood functions like sensor calibration and heater control. However, it is classified as "Standard" grade per Renesas quality policy and is not qualified for safety-critical automotive systems without additional validation and written consent from Renesas.
HZS9B3LTA-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:
- -
HZS9B3LTA-E FAQ
1.How can I place an order for HZS9B3LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS9B3LTA-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 HZS9B3LTA-E reliable?
The price and inventory of HZS9B3LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS9B3LTA-E is usually 5 days.
3.What payment methods are accepted for HZS9B3LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS9B3LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS9B3LTA-E?
HZS9B3LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS9B3LTA-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 HZS9B3LTA-E?
For technical support, including HZS9B3LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS9B3LTA-E requirements.
6.How does Aetrix verify that HZS9B3LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS9B3LTA-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 HZS9B3LTA-E meets industry standards.
7.What is the process for return or replacement of HZS9B3LTA-E?
All HZS9B3LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS9B3LTA-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 HZS9B3LTA-E part is unused and in its original packaging.
Return procedure for HZS9B3LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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