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Renesas HZS9C1LTA-E
- Part No.:
- HZS9C1LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS9C1LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
HZS9C1LTA-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog and stabilized power supply circuits, with a nominal zener voltage of 8.9–9.3 V, dynamic resistance of 60 Ω at 6.0 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 200°C - deployed in industrial instrumentation and sensor signal conditioning.
For engineers reviewing the HZS9C1LTA-E datasheet, HZS9C1LTA-E pinout, HZS9C1LTA-E application, or HZS9C1LTA-E equivalent, this part serves as a low-noise, low-impedance voltage reference where thermal stability, low leakage (<1 μA at VR = 2.0 V), and consistent zener impedance across production lots are critical selection criteria.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its zener voltage exhibits a positive temperature coefficient near 0 mV/°C at ~9 V (per Fig.2), minimizing drift over temperature in biasing and reference applications.
Designed for DC-regulated operation, it delivers stable regulation under constant-current bias (IZ = 6.0 mA), with low noise performance achieved via optimized doping profile and junction geometry - distinguishing it from standard HZ-series diodes by offering 1/3–1/10 lower noise level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.9–9.3 V at IZ = 0.5 mA - defines precise DC reference point for feedback loops and analog circuit biasing. |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 6.0 mA - ensures minimal output voltage variation under load current transients. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports compact PCB layouts without forced cooling in industrial ambient conditions. |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - reduces error current in high-impedance reference nodes and improves accuracy in low-power designs. |
| Junction Temperature (Tj) | 200°C max - enables reliable operation in thermally demanding environments such as motor control enclosures or power converters. |
| Storage Temperature | −55 to +175°C - compatible with reflow soldering and extended industrial storage requirements. |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial-leaded, 5 mm pitch, glass-passivated silicon planar diode with cathode band marking. Mass: 0.084 g. Dimensions: φD = 2.0 mm, E = 2.4 mm, L = 26.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation. |
| 2 (Anode) | Low-side return terminal | Typically tied to ground or common reference plane; completes current path during zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener operation | 1/3–1/10 lower noise than HZ-series - directly improves SNR in precision ADC references and op-amp bias networks. |
| Stable temperature coefficient | ≈0 mV/°C near 9 V (per Fig.2) - minimizes reference drift over −40°C to +125°C operating range. |
| Low zener impedance | 60 Ω max at 6 mA - maintains tight regulation under varying load currents in feedback-controlled supplies. |
| High reliability construction | Planar diffusion + glass passivation - ensures long-term parameter stability and resistance to humidity-induced degradation. |
| Automated assembly compatibility | 5 mm pitch, axial lead form - supports high-speed insertion in industrial PCB assembly lines. |
Applications
| Industrial Power Supply Reference | Precision Sensor Biasing |
|---|---|
Use Scenario: Stabilized ±12 V rail generation in programmable logic controller (PLC) backplane power modules. IC Role / Device Role / Timing Role: Zener diode provides fixed reference voltage for TL431 shunt regulator feedback network. Use Value: Low dynamic resistance (60 Ω) ensures <±5 mV output variation under 10–100 mA load steps, improving ADC measurement repeatability. |
Use Scenario: Excitation voltage source for strain gauge Wheatstone bridges in load cell signal conditioners. IC Role / Device Role / Timing Role: Low-noise voltage reference establishes bridge excitation potential independent of supply ripple. Use Value: 1/3–1/10 lower noise vs. HZ-series reduces RMS noise floor by >10 µV, enabling sub-0.01% full-scale resolution. |
| Thermal Monitoring Circuit | Analog Front-End Calibration |
Use Scenario: Reference node in thermistor-based temperature sensing circuits for HVAC control units. IC Role / Device Role / Timing Role: Provides stable bias point for NTC thermistor divider network feeding microcontroller ADC. Use Value: Near-zero temperature coefficient at 9 V minimizes reference drift contribution, reducing calibration frequency to once per 2 years. |
Use Scenario: Factory-trimmed offset correction in medical-grade ECG analog front-end ICs. IC Role / Device Role / Timing Role: Serves as secondary reference for DAC-based offset nulling during production test. Use Value: ≤1 μA leakage prevents loading of high-impedance calibration nodes, preserving DAC linearity within ±0.5 LSB. |
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 |
|---|---|---|---|
| 1N4739A (ON Semiconductor) | Zener voltage 9.1 V ±5%, rd = 10 Ω typical (but higher noise), Pd = 1 W, DO-41 package. | Higher power rating suits higher-current references but lacks low-noise optimization for precision analog. | Select when higher power headroom is needed and noise is secondary to cost or availability. |
| BZX55C9V1 (Vishay) | Zener voltage 9.1 V ±5%, rd = 15 Ω typical, Pd = 500 mW, DO-35 package, no published noise spec. | Smaller DO-35 footprint saves board space but offers no documented low-noise advantage over HZS-L series. | Choose for space-constrained designs where verified low-noise performance is not required. |
Compared with 1N4739A and BZX55C9V1, HZS9C1LTA-E delivers uniquely specified low-noise operation and tighter dynamic resistance control at 60 Ω - making it preferred for metrology-grade references where noise and impedance stability outweigh raw power or footprint advantages.
Availability
HZS9C1LTA-E is available at Aetrix Electronics and suitable for industrial instrumentation, sensor signal conditioning, and precision power supply design requiring stable component supply, long-lifecycle support, and traceable manufacturing origin.
Supply support for HZS9C1LTA-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 system-on-chip solutions for industrial, automotive, and infrastructure markets.
HZS9C1LTA-E belongs to the HZS-L Series of low-noise silicon planar Zener diodes, designed specifically for precision voltage reference and stabilization in analog signal chains and industrial power systems.
FAQ
What is the zener voltage tolerance for HZS9C1LTA-E?
The HZS9C1LTA-E has a zener voltage range of 8.9 V to 9.3 V at IZ = 0.5 mA, corresponding to a ±2.2% tolerance around the nominal 9.1 V value. This specification is guaranteed per the Renesas REJ03G0166-0300 datasheet, page 2, and applies under DC test conditions at Ta = 25°C. The HZS9C1LTA-E's tight tolerance supports accurate calibration in closed-loop power supplies and sensor interfaces.
Does HZS9C1LTA-E support surface-mount assembly?
No, HZS9C1LTA-E uses an axial-leaded MHD package (JEITA code GRZZ0002ZC-A) with 5 mm lead pitch and is designed for through-hole mounting and high-speed automatic insertion. It is not a surface-mount device. The package dimensions - φD = 2.0 mm, L = 26.0 mm - confirm its through-hole mechanical form factor. For SMT alternatives, Renesas does not list an SMT variant of the HZS-L series in the provided documentation.
What is the maximum reverse leakage current for HZS9C1LTA-E?
The maximum reverse leakage current (IR) for HZS9C1LTA-E is 1 μA at VR = 2.0 V and Ta = 25°C, as specified on page 2 of the REJ03G0166-0300 datasheet. This low leakage ensures minimal error current in high-impedance reference nodes - critical for maintaining accuracy in battery-powered sensors and precision op-amp circuits using the HZS9C1LTA-E as a bias reference.
Is HZS9C1LTA-E rated for automotive applications?
No, HZS9C1LTA-E is classified as a "Standard" quality grade device per Renesas' quality grading system (page 1, Note 7), intended for industrial, office, and communications equipment - not automotive or safety-critical systems. It is not qualified to AEC-Q101 or rated for extended temperature ranges beyond −55°C to +175°C storage or 200°C junction. Use in automotive contexts requires explicit written consent from Renesas and validation against AEC requirements.
How does the noise performance of HZS9C1LTA-E compare to standard Zener diodes?
HZS9C1LTA-E achieves approximately 1/3–1/10 lower noise than the legacy HZ-series Zener diodes, as stated in the "Features" section (page 1) of the REJ03G0166-0300 datasheet. This improvement stems from optimized planar junction design and process control - directly enhancing signal integrity in low-level analog paths such as microphone preamps, precision DAC references, and strain gauge exciters where the HZS9C1LTA-E is deployed.
HZS9C1LTA-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:
- -
HZS9C1LTA-E FAQ
1.How can I place an order for HZS9C1LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS9C1LTA-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 HZS9C1LTA-E reliable?
The price and inventory of HZS9C1LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS9C1LTA-E is usually 5 days.
3.What payment methods are accepted for HZS9C1LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS9C1LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS9C1LTA-E?
HZS9C1LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS9C1LTA-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 HZS9C1LTA-E?
For technical support, including HZS9C1LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS9C1LTA-E requirements.
6.How does Aetrix verify that HZS9C1LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS9C1LTA-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 HZS9C1LTA-E meets industry standards.
7.What is the process for return or replacement of HZS9C1LTA-E?
All HZS9C1LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS9C1LTA-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 HZS9C1LTA-E part is unused and in its original packaging.
Return procedure for HZS9C1LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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