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Renesas HZ11A2JTD-E
- Part No.:
- HZ11A2JTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11A2JTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:827,500
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Product details
Overview
HZ11A2JTD-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 9.7–10.1 V at 0.5 mA test current, dynamic resistance of 80 Ω, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in reference supplies for ADCs, sensor signal conditioning, and low-drift bias networks.
For engineers reviewing the HZ11A2JTD-E datasheet, HZ11A2JTD-E pinout, HZ11A2JTD-E application, or HZ11A2JTD-E equivalent, key selection criteria include its verified low-noise performance (≈1/3–1/10 lower than standard HZ series), DO-35 package compatibility with through-hole PCB layouts, stable zener impedance under low-current operation, and suitability for temperature-sensitive voltage references where γZ is minimized near 10 V.
Technical Context
The HZ11A2JTD-E operates as a two-terminal shunt regulator with DC-tested zener characteristics, optimized for low-noise applications requiring stable reverse-biased breakdown behavior. Its planar silicon construction ensures consistent junction parameters and low leakage current (≤1 μA at VR = 2.0 V).
Designed for fixed-voltage reference use at IZ = 0.5 mA, it delivers predictable regulation across −55°C to +175°C ambient range, with zener voltage temperature coefficient centered near −0.02 %/°C (−2 mV/°C) per typical curve data for 10 V-class devices in the HZ-L family.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.7–10.1 V at IZ = 0.5 mA - defines precise regulation point for low-current reference designs |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact through-hole layouts without forced cooling |
| Junction Temperature (Tj) | 175°C max - enables reliable function in high-temperature industrial environments |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - preserves accuracy in high-impedance bias networks |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard glass axial leaded package with orange body and navy-blue cathode band |
Pinout & Package
Package: DO-35 glass axial-leaded package (Renesas code GRZZ0002ZB-A), 2.0 mm diameter × 26.0 mm length, 0.13 g mass, orange body with navy-blue cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to higher potential node; reverse-biased operation requires positive voltage applied here relative to anode |
| 2 (Anode) | Reference ground terminal | Typically tied to circuit common; establishes return path for zener current and defines regulated output node |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener operation | Noise level ≈1/3–1/10 that of legacy HZ series - critical for audio preamps and precision instrumentation front-ends |
| Stable low-current regulation | Specified at IZ = 0.5 mA - enables energy-efficient reference generation in battery-powered systems |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V - allows design reuse across multiple supply rail requirements |
| High thermal robustness | Tj = 175°C and Tstg = −55 to +175°C - suitable for under-hood automotive modules and industrial motor controls |
Applications
| ADC Reference Supply | Sensor Bias Network |
|---|---|
Use Scenario: Providing stable 10 V reference for 16-bit SAR ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise full-scale input threshold. Use Value: Low dynamic resistance (80 Ω) and low noise suppress quantization error and improve effective number of bits (ENOB). |
Use Scenario: Biasing bridge-type pressure sensors in HVAC control units. IC Role / Device Role / Timing Role: Fixed-voltage excitation source maintaining constant sensor sensitivity across temperature. Use Value: Stable zener voltage with γZ ≈ −0.02 %/°C minimizes offset drift over −40°C to +85°C operating range. |
| Low-Power Analog Front-End | Industrial PLC Input Conditioning |
Use Scenario: Generating clean 10 V rail for op-amp gain stages in portable medical monitors. IC Role / Device Role / Timing Role: Low-noise voltage clamp regulating op-amp supply headroom. Use Value: Reduced diode noise directly lowers system input-referred noise floor below 10 nV/√Hz. |
Use Scenario: Level-shifting and clamping 24 V field signals into 0–10 V PLC analog inputs. IC Role / Device Role / Timing Role: Overvoltage protection and precision clamping element in input protection circuitry. Use Value: 400 mW power rating and 175°C junction rating sustain repeated surge events in factory-floor environments. |
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 @ 19 mA, Pd = 1 W, DO-41 package | Higher power rating but significantly higher test current; less suitable for ultra-low-current references | Select when higher current drive capability and tighter VZ tolerance are required, accepting larger footprint and higher bias current. |
| BZX55C10 (Vishay) | Zener voltage 10 V ±5%, rd = 20 Ω @ 5 mA, Pd = 500 mW, DO-35 package | Lower dynamic resistance but specified at 5× higher test current; noise performance not characterized | Prefer for general-purpose regulation where low noise is secondary to regulation tightness and availability. |
Compared with 1N4739A and BZX55C10, the HZ11A2JTD-E offers uniquely low-noise operation at microampere-level currents and superior thermal stability near 10 V, making it optimal for precision analog signal chains rather than power-supply feedback or high-current clamping.
Availability
HZ11A2JTD-E is available at Aetrix Electronics and suitable for ADC reference supplies, sensor bias networks, low-power analog front-ends, and industrial PLC input conditioning requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for HZ11A2JTD-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 connectivity solutions for automotive, industrial, and IoT applications.
The HZ-L Series Zener diodes were developed by Renesas specifically for low-noise, high-stability voltage reference applications in precision analog systems - emphasizing reduced flicker noise, tight dynamic impedance control, and enhanced thermal coefficient behavior in the 5–38 V range.
FAQ
What is the zener voltage tolerance for HZ11A2JTD-E?
The HZ11A2JTD-E has a zener voltage range of 9.7 V to 10.1 V when tested at IZ = 0.5 mA and Ta = 25°C. This ±2% span reflects manufacturing consistency for low-current reference use, not a symmetric ±2% tolerance - actual unit values fall within this min/max window and are untrimmed. The HZ11A2JTD-E is not offered in tighter-tolerance grades.
Is HZ11A2JTD-E suitable for surface-mount assembly?
No, the HZ11A2JTD-E uses a DO-35 glass axial-leaded package intended for through-hole mounting only. It lacks solder pads or terminations compatible with reflow or wave soldering processes. For SMT equivalents, consider Renesas' HZL series in SOD-123 or similar low-noise Zeners from other manufacturers rated for 10 V operation.
Does HZ11A2JTD-E have a specified noise spectral density?
The HZ11A2JTD-E datasheet does not list numerical noise spectral density (e.g., nV/√Hz), but explicitly states its noise level is approximately 1/3–1/10 lower than the legacy HZ series. This comparative claim is validated across the HZ-L family via Renesas' internal low-noise process optimization - confirmed in REJ03G0182-0300 Rev.3.00.
What is the maximum reverse current before breakdown for HZ11A2JTD-E?
The HZ11A2JTD-E specifies reverse leakage current IR ≤ 1 μA at VR = 2.0 V, measured at Ta = 25°C. This value represents the upper limit of non-breakdown conduction; true zener breakdown begins near 9.7 V. Operation below 2 V reverse bias ensures negligible current flow and preserves reference integrity in high-impedance nodes.
Can HZ11A2JTD-E replace standard 10 V Zener diodes in existing designs?
The HZ11A2JTD-E can replace generic 10 V Zeners in low-current reference roles (e.g., IZ ≤ 1 mA), provided the DO-35 footprint and cathode band orientation match. However, its optimized low-noise performance and 80 Ω dynamic resistance differ from typical 10 V Zeners like 1N4740A (rd ≈ 7 Ω @ 25 mA), so verify stability under actual operating current and thermal conditions before substitution.
HZ11A2JTD-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:
- -
HZ11A2JTD-E FAQ
1.How can I place an order for HZ11A2JTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11A2JTD-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 HZ11A2JTD-E reliable?
The price and inventory of HZ11A2JTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11A2JTD-E is usually 5 days.
3.What payment methods are accepted for HZ11A2JTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11A2JTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11A2JTD-E?
HZ11A2JTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11A2JTD-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 HZ11A2JTD-E?
For technical support, including HZ11A2JTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11A2JTD-E requirements.
6.How does Aetrix verify that HZ11A2JTD-E is sourced from the original manufacturer or authorized distributors?
All HZ11A2JTD-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 HZ11A2JTD-E meets industry standards.
7.What is the process for return or replacement of HZ11A2JTD-E?
All HZ11A2JTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11A2JTD-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 HZ11A2JTD-E part is unused and in its original packaging.
Return procedure for HZ11A2JTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ11A2JTD-E Tags
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MM5Z5V1ST1G
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