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Renesas HZ11A2JTA-E
- Part No.:
- HZ11A2JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ11A2JTA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZ11A2JTA-E from Renesas 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 V (min 9.7 V, max 10.1 V), 400 mW power dissipation, 8.0 Ω dynamic resistance at 0.5 mA test current, and DO-35 glass package with orange body and navy blue cathode band.
For engineers reviewing the HZ11A2JTA-E datasheet, HZ11A2JTA-E pinout, HZ11A2JTA-E application, or HZ11A2JTA-E equivalent, this device is selected for noise-sensitive voltage regulation, low-drift reference design, and stable biasing in instrumentation amplifiers, sensor signal conditioning, and high-fidelity power supply feedback loops.
Technical Context
The HZ11A2JTA-E operates as a two-terminal shunt regulator with DC-tested zener breakdown characteristics, designed for low-noise performance-exhibiting approximately 1/3–1/10 the noise level of standard HZ-series diodes. Its zener voltage temperature coefficient is −0.04 %/°C (≈ −0.4 mV/°C) near 10 V, supporting stable operation across −55°C to +175°C junction temperature range.
It delivers low leakage current (≤1 μA at VR = 8.0 V), low zener impedance (8.0 Ω at IZ = 0.5 mA), and maintains specified electrical behavior under DC bias only-no AC or transient characterization is provided in the official specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.7 V min / 10.1 V max at IZ = 0.5 mA - defines tight tolerance reference point for precision regulation |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating |
| Dynamic Resistance (rd) | 8.0 Ω at IZ = 0.5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤1 μA at VR = 8.0 V - ensures minimal leakage-induced error in high-impedance reference nodes |
| Junction Temperature (Tj) | −55°C to +175°C - enables use in automotive under-hood and industrial high-temp environments |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - axial glass package with standardized lead spacing and thermal mass for manual/hand-soldering |
Pinout & Package
DO-35 glass axial package: cylindrical body (φD ≈ 2.0 mm, L ≈ 26.0 mm), orange body color, navy blue cathode band. Mass ≈ 0.13 g. JEITA code GRZZ0002ZB-A; Renesas package code SC-40.
| 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 reference potential |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener operation | 1/3–1/10 noise vs. standard HZ series - directly improves SNR in precision ADC references and op-amp bias networks |
| Tight zener voltage tolerance | ±0.2 V at 9.9 V nominal - enables accurate 10 V reference without external trimming in cost-sensitive designs |
| Stable temperature coefficient | −0.04 %/°C near 10 V - minimizes drift-induced error in temperature-varying environments (e.g., outdoor sensors) |
| Low dynamic impedance | 8.0 Ω at 0.5 mA - maintains regulation accuracy under varying load currents up to ~1 mA |
Applications
| Instrumentation Amplifier Reference | High-Fidelity Audio Power Supply |
|---|---|
Use Scenario: Providing stable bias voltage for input stage transistors in low-noise instrumentation amplifiers used in medical ECG front-ends. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise common-mode input level and gain-setting node. Use Value: Low diode noise and tight VZ tolerance reduce baseline wander and improve differential signal fidelity below 10 µV. | Use Scenario: Regulating ±12 V rails in Class-A headphone amplifier power supplies where ripple and hum must be < 50 µV RMS. IC Role / Device Role / Timing Role: Low-impedance shunt reference in discrete transistor-based linear regulator feedback loop. Use Value: 8.0 Ω rd and sub-µA leakage suppress output ripple propagation and prevent low-frequency modulation artifacts. |
| Sensor Signal Conditioning | Industrial PLC Analog Input Module |
Use Scenario: Biasing bridge sensors (e.g., strain gauges) in battery-powered IoT environmental monitors operating from −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Precision excitation reference for Wheatstone bridge, isolated from supply variations. Use Value: −0.04 %/°C tempco and 175°C max Tj ensure < ±0.5% full-scale error over full industrial temperature range. | Use Scenario: Generating calibrated 10 V reference for 16-bit SAR ADCs in DIN-rail mounted programmable logic controller analog input cards. IC Role / Device Role / Timing Role: Primary voltage reference for ADC internal DAC and external calibration circuitry. Use Value: Tight 9.7–10.1 V VZ window and low rd enable single-point factory calibration with < 0.1% linearity error over 20-year service life. |
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) | 10 V nominal, ±5% tolerance (9.5–10.5 V), 10 Ω rd, 1 W Pd, DO-41 package | Higher power, looser tolerance, higher noise - suitable for non-critical regulation but not low-noise references | Select when board space allows larger DO-41 and noise budget permits ≥3× higher diode noise |
| BZX84-C10 (Diodes Inc.) | 10 V nominal, ±5% tolerance, 20 Ω rd, 300 mW Pd, SOT-23 surface-mount package | Surface-mount form factor, higher impedance, higher leakage - fits automated assembly but degrades reference stability | Select when SMT compatibility is mandatory and thermal derating to ≤200 mW is acceptable |
Compared with 1N4739A and BZX84-C10, the HZ11A2JTA-E provides tighter voltage tolerance, lower dynamic impedance, and significantly lower noise-making it uniquely suited for precision analog reference nodes where signal integrity outweighs package size or power rating flexibility.
Availability
HZ11A2JTA-E is available at Aetrix Electronics and suitable for instrumentation amplifier reference, sensor signal conditioning, and industrial PLC analog input modules requiring stable component supply, long-lifecycle support, and traceable sourcing for mission-critical analog subsystems.
Supply support for HZ11A2JTA-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 manufacturer specializing in microcontrollers, analog mixed-signal devices, and power management ICs for automotive, industrial, and infrastructure markets.
The HZ-L Series Zener diodes are part of Renesas' precision analog portfolio, engineered specifically for low-noise, low-drift voltage reference applications in measurement, sensing, and high-fidelity signal chain designs.
FAQ
What is the exact zener voltage range for HZ11A2JTA-E?
The HZ11A2JTA-E has a guaranteed zener voltage range of 9.7 V minimum to 10.1 V maximum, measured at a test current of 0.5 mA under DC conditions per Renesas specification REJ03G0182-0300 Rev.3.00. This 0.4 V span reflects its tight binning within the HZ11A2L variant group and supports precision reference design without post-manufacturing trimming.
Is HZ11A2JTA-E suitable for surface-mount assembly?
No, the HZ11A2JTA-E uses a DO-35 axial glass package with 26 mm body length and radial leads, intended for through-hole mounting only. It is not compatible with reflow or wave soldering processes used for SMT. For surface-mount alternatives, consider the BZX84-C10-but note its higher dynamic resistance and noise versus the HZ11A2JTA-E.
What is the maximum allowable reverse voltage before breakdown for HZ11A2JTA-E?
The HZ11A2JTA-E does not specify a distinct "reverse breakdown threshold" separate from its zener voltage. Per datasheet testing methodology, it enters controlled zener conduction at approximately 9.7 V under DC bias at 0.5 mA. Operation below 8.0 V guarantees ≤1 μA leakage; sustained reverse voltage above 10.1 V risks exceeding power dissipation limits unless current is strictly limited by external series resistance.
Does HZ11A2JTA-E support AC or pulsed operation?
No-the official Renesas datasheet explicitly states all electrical characteristics for the HZ11A2JTA-E are tested with DC only. No AC impedance, frequency response, or pulse current ratings are provided. For AC-coupled or transient reference applications, additional external filtering or alternative devices with characterized dynamic behavior must be used.
How does the noise performance of HZ11A2JTA-E compare to standard Zener diodes?
The HZ11A2JTA-E exhibits approximately 1/3 to 1/10 the noise level of conventional HZ-series Zener diodes, as confirmed in Renesas' comparative characterization. This reduction stems from proprietary silicon planar processing and optimized junction geometry-directly improving signal-to-noise ratio in precision analog stages where the HZ11A2JTA-E serves as a voltage reference.
HZ11A2JTA-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:
- -
HZ11A2JTA-E FAQ
1.How can I place an order for HZ11A2JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ11A2JTA-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 HZ11A2JTA-E reliable?
The price and inventory of HZ11A2JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ11A2JTA-E is usually 5 days.
3.What payment methods are accepted for HZ11A2JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ11A2JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ11A2JTA-E?
HZ11A2JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ11A2JTA-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 HZ11A2JTA-E?
For technical support, including HZ11A2JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ11A2JTA-E requirements.
6.How does Aetrix verify that HZ11A2JTA-E is sourced from the original manufacturer or authorized distributors?
All HZ11A2JTA-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 HZ11A2JTA-E meets industry standards.
7.What is the process for return or replacement of HZ11A2JTA-E?
All HZ11A2JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ11A2JTA-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 HZ11A2JTA-E part is unused and in its original packaging.
Return procedure for HZ11A2JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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