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Renesas HZS11A3LTD-E
- Part No.:
- HZS11A3LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS11A3LTD-E.pdf
- Description:
- DIODE ZENER 10.1V 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:1,080,000
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Product details
Overview
HZS11A3LTD-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 9.9–10.3 V, 400 mW power dissipation, and dynamic resistance of 8.0 Ω at 0.5 mA test current. It is used in high-stability power supplies, sensor excitation circuits, and ADC reference buffers where low noise and tight voltage tolerance are critical.
For engineers reviewing the HZS11A3LTD-E datasheet, HZS11A3LTD-E pinout, HZS11A3LTD-E application, or HZS11A3LTD-E equivalent, this device is selected for its verified low-noise performance (≈1/3–1/10 lower than HZ series), low leakage, and suitability for 5 mm-pitch automated insertion in industrial and test equipment designs.
Technical Context
This Zener diode operates in reverse breakdown with DC-tested zener voltage specification and exhibits a temperature coefficient of approximately −0.02 %/°C near 10 V, enabling stable regulation across ambient temperatures up to +175 °C storage and +200 °C junction limits. Its planar construction ensures reproducible breakdown characteristics and low parameter drift.
The HZS11A3LTD-E is rated for 400 mW maximum power dissipation on a standard FR-phenolic PCB (100 × 180 × 1.6 mm), with derating beginning above 50 °C ambient. Its low dynamic impedance (8.0 Ω) and sub-μA reverse leakage support high-accuracy feedback and reference applications requiring minimal loading error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.9–10.3 V at IZ = 0.5 mA - defines precise regulation point for low-drift references |
| Dynamic Resistance (rd) | 8.0 Ω max at IZ = 0.5 mA - ensures minimal output impedance and high line/load regulation |
| Power Dissipation (Pd) | 400 mW - supports continuous operation in compact PCB layouts without forced cooling |
| Junction Temperature (Tj) | −55 to +200 °C - enables use in extended-temperature industrial environments |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - minimizes parasitic current in high-impedance bias networks |
| Noise Level | ≈1/3–1/10 of HZ series - directly reduces RMS noise in precision voltage references |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), axial-leaded, 2.0 mm diameter body, 26.0 mm length, 0.4 mm lead diameter, 5 mm pitch - compatible with high-speed automatic insertion equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated positive rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground node | Serves as circuit common; reverse-biased configuration requires anode at lower potential than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Reduces broadband voltage noise by factor of 3–10 vs. legacy HZ series, critical for 16-bit+ data acquisition |
| Low dynamic impedance | 8.0 Ω enables <0.1% load regulation error in 1 mA reference sinks |
| Wide operating temperature range | Validated operation from −55 °C to +200 °C junction enables deployment in under-hood or industrial control enclosures |
| Standardized MHD package | 5 mm pitch and axial leads support automated assembly and mechanical stability in vibration-prone systems |
| Tight zener voltage tolerance | ±0.2 V window (9.9–10.3 V) simplifies calibration and eliminates need for post-trim in many reference designs |
Applications
| High-Stability Power Reference | Precision Sensor Excitation |
|---|---|
Use Scenario: Providing a stable 10 V reference for op-amp-based voltage regulators and DAC output buffers in laboratory-grade power supplies. IC Role / Device Role / Timing Role: Zener voltage reference element establishing fixed regulation threshold in feedback loop. Use Value: Low 8.0 Ω dynamic resistance and sub-μA leakage minimize regulation error under varying load conditions. |
Use Scenario: Supplying excitation voltage to strain gauges and RTDs in industrial weighing and process monitoring systems. IC Role / Device Role / Timing Role: Low-noise, temperature-stable voltage source for bridge biasing. Use Value: Noise reduction by factor of 3–10 directly improves signal-to-noise ratio in microvolt-level bridge outputs. |
| ADC Reference Buffer | Overvoltage Protection Clamp |
Use Scenario: Driving the reference input of 16-bit SAR ADCs in data loggers where supply ripple must not modulate conversion accuracy. IC Role / Device Role / Timing Role: Low-impedance, low-noise voltage source buffering internal ADC reference node. Use Value: 400 mW rating allows safe operation with modest series resistance, maintaining stability during transient load steps. |
Use Scenario: Clamping microcontroller I/O pins against ESD or surge events in factory automation interfaces. IC Role / Device Role / Timing Role: Fast-acting shunt protection device limiting voltage to 10.3 V maximum. Use Value: Verified 200 °C junction rating supports reliable clamping during repeated surge events without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10LT1G (ON Semiconductor) | 10 V nominal, 300 mW, 20 Ω rd, SOT-23 package | Surface-mount only; higher dynamic resistance increases load regulation error | Choose for space-constrained PCBs where 20 Ω rd is acceptable and through-hole insertion is unavailable |
| 1N4740A (ON Semiconductor) | 10 V nominal, 1 W, 20 Ω rd, DO-41 package | Higher power but significantly higher noise and dynamic impedance than HZS11A3LTD-E | Choose only when >400 mW dissipation is required and low-noise performance is secondary |
Compared with BZX84-C10LT1G and 1N4740A, the HZS11A3LTD-E delivers superior noise performance and lower dynamic impedance in a through-hole MHD package optimized for automated insertion-making it preferred for precision analog reference and sensor excitation where stability and manufacturability are jointly critical.
Availability
HZS11A3LTD-E is available at Aetrix Electronics and suitable for industrial instrumentation, test and measurement equipment, and precision analog power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZS11A3LTD-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 was designed specifically for low-noise, high-stability voltage reference applications in industrial and test equipment-emphasizing tight zener voltage tolerance, low dynamic impedance, and robust thermal performance.
FAQ
What is the zener voltage range of the HZS11A3LTD-E?
The HZS11A3LTD-E has a specified zener voltage range of 9.9 V to 10.3 V at a test current of 0.5 mA. This tight ±0.2 V window ensures consistent regulation behavior across production lots and supports accurate calibration in precision reference circuits without trimming. The value is DC-tested per Renesas REJ03G0166-0300 Rev.3.00.
Does the HZS11A3LTD-E support high-temperature operation?
Yes, the HZS11A3LTD-E is rated for junction temperatures up to +200 °C and storage temperatures from −55 °C to +175 °C. Its silicon planar construction and MHD package enable reliable operation in extended-temperature industrial environments such as motor drives and factory automation controllers where ambient heat buildup occurs.
How does the noise performance of HZS11A3LTD-E compare to standard Zener diodes?
The HZS11A3LTD-E achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series Zeners. This low-noise characteristic is intrinsic to its planar process and is confirmed in Renesas documentation (REJ03G0166-0300), making HZS11A3LTD-E especially valuable in high-resolution ADC references and low-level sensor signal conditioning.
What is the maximum power dissipation rating for HZS11A3LTD-E?
The HZS11A3LTD-E has a maximum power dissipation of 400 mW at Ta = 25 °C on a standard 100 × 180 × 1.6 mm paper-phenolic PCB. Derating begins linearly above 50 °C ambient, reaching zero dissipation at ~150 °C. This rating supports continuous operation in compact, passively cooled industrial modules.
Is the HZS11A3LTD-E compatible with automated through-hole assembly?
Yes, the HZS11A3LTD-E uses the MHD package (JEITA code GRZZ0002ZC-A) with 5 mm lead pitch and axial leads-explicitly qualified for high-speed automatic insertion per Renesas documentation. Its standardized dimensions and black cathode band ensure reliable orientation detection and placement in production lines.
HZS11A3LTD-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:
- -
HZS11A3LTD-E FAQ
1.How can I place an order for HZS11A3LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS11A3LTD-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 HZS11A3LTD-E reliable?
The price and inventory of HZS11A3LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS11A3LTD-E is usually 5 days.
3.What payment methods are accepted for HZS11A3LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS11A3LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS11A3LTD-E?
HZS11A3LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS11A3LTD-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 HZS11A3LTD-E?
For technical support, including HZS11A3LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS11A3LTD-E requirements.
6.How does Aetrix verify that HZS11A3LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS11A3LTD-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 HZS11A3LTD-E meets industry standards.
7.What is the process for return or replacement of HZS11A3LTD-E?
All HZS11A3LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS11A3LTD-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 HZS11A3LTD-E part is unused and in its original packaging.
Return procedure for HZS11A3LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS11A3LTD-E Tags
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MM5Z5V1ST1G
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