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Renesas HZS9C3LTD-E
- Part No.:
- HZS9C3LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS9C3LTD-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
HZS9C3LTD-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 9.3–9.7 V at 0.5 mA, 60 Ω dynamic impedance, 400 mW power dissipation, and −55 to +175 °C storage temperature range. It is used in low-drift power supply feedback paths and sensor excitation circuits where noise suppression and thermal stability are critical.
For engineers reviewing the HZS9C3LTD-E datasheet, HZS9C3LTD-E pinout, HZS9C3LTD-E application, or HZS9C3LTD-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low noise performance (≈1/3–1/10 that of HZ series), junction temperature limit (200 °C), and compatibility with 5 mm-pitch automated insertion equipment.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents via controlled reverse-bias breakdown. Its planar construction ensures consistent zener impedance (60 Ω max at 0.5 mA) and low leakage current (≤1 μA at VR = 2.0 V).
The HZS9C3LTD-E exhibits a negative zener voltage temperature coefficient near zero crossing - typical for ~9.5 V devices - enabling minimal drift over temperature when paired with compensating components. It is rated for standard-grade applications including industrial instrumentation and office equipment per Renesas quality classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.3–9.7 V at IZ = 0.5 mA - defines precise regulation point for feedback networks. |
| Dynamic Impedance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients. |
| Power Dissipation (Pd) | 400 mW at Ta = 25 °C - supports compact PCB layout without forced cooling in ambient conditions. |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - reduces error current in high-impedance reference nodes. |
| Junction Temperature (Tj) | 200 °C maximum - enables reliable operation in thermally constrained enclosures. |
| Storage Temperature | −55 to +175 °C - compatible with reflow soldering and extended environmental deployment. |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial leaded, 2.0 mm diameter body, 26.0 mm length, 0.4 mm lead diameter, black cathode band. Mass: 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-bias anode connection point | Connected to regulated output node; polarity marking essential for correct orientation in shunt configuration. |
| 2 (Anode) | Reverse-bias cathode connection point | Ground or lower-potential reference; forms current path through series resistor to input supply. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Noise level ≈1/3–1/10 that of legacy HZ series - directly improves SNR in precision ADC references and op-amp biasing. |
| Stable zener impedance | 60 Ω max at 0.5 mA - maintains regulation accuracy across varying load currents in feedback loops. |
| High-power density | 400 mW in MHD package - allows higher current drive than comparable 250 mW Zeners without derating. |
| Automated assembly compatibility | 5 mm pitch lead spacing - supports high-throughput placement on standard SMT-compatible insertion lines. |
Applications
| Industrial Sensor Signal Conditioning | Precision Power Supply Feedback |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure or strain sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-drift, low-noise bias to sensor Wheatstone bridges. Use Value: Enables sub-0.1% full-scale measurement accuracy by minimizing reference-induced noise and thermal drift. |
Use Scenario: Regulating output voltage in linear or switching power supplies requiring tight tolerance and low ripple. IC Role / Device Role / Timing Role: Zener element in TL431-like feedback divider network to set output voltage precisely. Use Value: Reduces output voltage drift to <±0.5% over temperature due to stable VZ and low rd. |
| Medical Diagnostic Instrumentation | Test & Measurement Equipment Calibration |
|
Use Scenario: Providing reference voltage for ECG amplifier front-ends and pulse oximeter analog signal chains. IC Role / Device Role / Timing Role: Low-noise voltage clamp in biopotential acquisition stages to prevent amplifier saturation. Use Value: Limits broadband noise contribution to <10 nV/√Hz, preserving microvolt-level physiological signal integrity. |
Use Scenario: Serving as traceable voltage standard in multimeter and oscilloscope internal calibration circuits. IC Role / Device Role / Timing Role: Primary shunt reference in self-calibration sequences requiring long-term stability. Use Value: Supports ±0.2 V initial tolerance and <50 ppm/°C tempco - meets Class II portable instrument requirements. |
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 | 9.1 V nominal, 90 Ω rd, 300 mW Pd, SOT-23 package | SMT-only; higher impedance limits regulation accuracy in high-current feedback paths | Choose for space-constrained PCBs where 0.2 V VZ shift and reduced power handling are acceptable. |
| 1N4739A | 9.1 V nominal, 10 Ω rd, 1 W Pd, DO-41 package | Higher power but higher noise (≈3× HZS-L series); no low-noise specification | Prefer for high-current shunt regulation where thermal margin outweighs noise sensitivity. |
Compared with BZX84-C9V1 and 1N4739A, the HZS9C3LTD-E delivers superior noise performance and tighter VZ tolerance in a standardized axial package, making it optimal for analog-intensive designs where reference integrity directly impacts measurement fidelity.
Availability
HZS9C3LTD-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, precision power supply feedback, and test & measurement calibration requiring stable component supply and documented low-noise behavior.
Supply support for HZS9C3LTD-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 enterprise applications.
The HZS-L Series belongs to Renesas' discrete voltage reference portfolio, designed specifically for low-noise, high-stability zener regulation in analog signal chains and power management subsystems.
FAQ
What is the exact zener voltage range specified for HZS9C3LTD-E?
The HZS9C3LTD-E has a guaranteed zener voltage range of 9.3 V to 9.7 V when tested at IZ = 0.5 mA and Ta = 25 °C. This 0.4 V tolerance reflects tight process control for precision reference use, and the value is confirmed in Renesas document REJ03G0166-0300 Rev.3.00.
Does HZS9C3LTD-E support automated assembly processes?
Yes, the HZS9C3LTD-E uses the MHD package with 5 mm lead pitch, explicitly qualified for high-speed automatic insertion equipment. Its axial lead geometry and standardized dimensions (2.0 mm body diameter, 26.0 mm length) ensure compatibility with industry-standard pick-and-place and wave soldering workflows.
How does the noise performance of HZS9C3LTD-E compare to older Zener families?
The HZS9C3LTD-E achieves approximately one-third to one-tenth the noise level of the legacy HZ series Zeners, as stated in the official Renesas datasheet. This improvement stems from refined silicon planar processing and optimized junction design, directly benefiting low-level analog circuits like sensor interfaces and precision DAC references.
What is the maximum allowable junction temperature for HZS9C3LTD-E?
The absolute maximum junction temperature for HZS9C3LTD-E is 200 °C, per Renesas' Absolute Maximum Ratings table. This rating enables reliable operation in thermally demanding environments such as enclosed industrial controllers or high-density power modules, provided PCB thermal design maintains Tj ≤ 200 °C.
Is HZS9C3LTD-E suitable for automotive applications?
No - the HZS9C3LTD-E is classified as a Standard-grade Renesas product, intended for computers, office equipment, communications gear, and industrial robots. It is not qualified for automotive (High Quality grade) or safety-critical (Specific grade) use; Renesas requires written consent for deployment in transportation or life-support systems.
HZS9C3LTD-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:
- -
HZS9C3LTD-E FAQ
1.How can I place an order for HZS9C3LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS9C3LTD-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 HZS9C3LTD-E reliable?
The price and inventory of HZS9C3LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS9C3LTD-E is usually 5 days.
3.What payment methods are accepted for HZS9C3LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS9C3LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS9C3LTD-E?
HZS9C3LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS9C3LTD-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 HZS9C3LTD-E?
For technical support, including HZS9C3LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS9C3LTD-E requirements.
6.How does Aetrix verify that HZS9C3LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS9C3LTD-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 HZS9C3LTD-E meets industry standards.
7.What is the process for return or replacement of HZS9C3LTD-E?
All HZS9C3LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS9C3LTD-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 HZS9C3LTD-E part is unused and in its original packaging.
Return procedure for HZS9C3LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS9C3LTD-E Tags
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MM5Z5V1ST1G
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