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Renesas HZ9C2JTA-E
- Part No.:
- HZ9C2JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ9C2JTA-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:1,335,000
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Product details
Overview
HZ9C2JTA-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 9.1 V to 9.5 V at 0.5 mA test current, dynamic resistance of 60 Ω, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in reference voltage sources and sensor signal conditioning.
For engineers reviewing the HZ9C2JTA-E datasheet, HZ9C2JTA-E pinout, HZ9C2JTA-E application, or HZ9C2JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low noise performance (1/3–1/10 that of standard HZ series), DO-35 package compatibility, and thermal stability across −55°C to +175°C storage range.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a silicon planar junction, with specified zener voltage tested under DC conditions at 0.5 mA. Its low dynamic resistance (60 Ω) and tight voltage tolerance support stable regulation in low-current bias networks.
The HZ9C2JTA-E exhibits a zener voltage temperature coefficient near zero (≈0 mV/°C) within its 9.1–9.5 V range, confirmed by Renesas' characteristic curves, and maintains low leakage (<1 μA at VR = 2.0 V), enabling use in high-impedance sensing nodes without signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V min to 9.5 V max at IZ = 0.5 mA - defines stable reference point for analog circuit biasing |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load changes |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal design limit for PCB trace width and copper area |
| Junction Temperature (Tj) | 175°C max - allows operation in high-ambient industrial environments with appropriate derating |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - preserves accuracy in high-impedance feedback paths |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard axial leaded package for through-hole mounting |
Pinout & Package
DO-35 package: hermetically sealed glass body with orange-colored body and navy-blue cathode band; axial leads; total mass 0.13 g; dimensions per JEITA standard: φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; polarity must be observed to avoid reverse conduction failure |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential rail; completes bias path for zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Noise Performance | Approximately 1/3–1/10 lower than standard HZ series - reduces voltage reference jitter in ADC/DAC references |
| Zener Impedance | 60 Ω max - enables stable regulation even with modest current variations in sensor front-ends |
| Voltage Range Coverage | Part of HZ-L family spanning 5.2 V to 38 V - supports standardized BOM across multiple reference voltage tiers |
| Thermal Stability | Near-zero temperature coefficient near 9.3 V - minimizes drift over industrial temperature range (−40°C to +85°C) |
Applications
| High-Precision Reference Source | Low-Noise Sensor Biasing |
|---|---|
Use Scenario: Providing stable excitation voltage to strain gauge bridges in weigh-scale transducers. IC Role / Device Role / Timing Role: Zener diode acting as primary voltage reference for instrumentation amplifier bias network. Use Value: Low dynamic resistance (60 Ω) and ultra-low noise suppress output ripple, improving bridge measurement resolution by >12-bit effective ENOB. | Use Scenario: Supplying clean bias to photodiode transimpedance amplifiers in optical smoke detectors. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) zener reference establishing virtual ground for current-to-voltage conversion. Use Value: Sub-μA leakage prevents input offset error accumulation, maintaining <10 nA detection threshold integrity over temperature. |
| Industrial Power Monitor Calibration | Medical Instrument Analog Front-End |
Use Scenario: Calibrating voltage dividers in DIN-rail mounted energy meters with ±0.5% accuracy requirement. IC Role / Device Role / Timing Role: Fixed zener reference replacing trim-pot-based calibration, enabling field recalibration via firmware. Use Value: Tight VZ tolerance (±0.2 V) and 175°C Tj rating ensure long-term stability in enclosed enclosures with limited airflow. | Use Scenario: Generating reference voltage for ECG electrode bias circuits requiring sub-10 μV RMS noise floor. IC Role / Device Role / Timing Role: Low-noise zener element in isolated patient-side analog supply chain. Use Value: Noise level 1/10 that of legacy HZ series directly lowers common-mode interference coupling into differential bio-signal paths. |
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 | Zener voltage 9.1 V (same nominal), but rd = 10 Ω higher (70 Ω), noise not characterized, Pd = 1 W | Higher power handling but no low-noise specification - suitable for general regulation, not precision analog | Select only if thermal margin >600 mW required and noise immunity is secondary |
| BZX55-C9V1 | Zener voltage 9.1 V, rd = 65 Ω, leakage ≤5 μA (5× higher), DO-35 package, no low-noise claim | Lower cost but higher leakage degrades high-Z sensor interfaces; no documented noise reduction | Acceptable for non-critical references where cost dominates and leakage <5 μA is tolerable |
Compared with 1N4739A and BZX55-C9V1, the HZ9C2JTA-E delivers verified low-noise operation and tighter leakage control essential for metrology-grade analog subsystems, while maintaining identical DO-35 footprint and soldering process compatibility.
Availability
HZ9C2JTA-E is available at Aetrix Electronics and suitable for high-precision reference source design, low-noise sensor biasing, and industrial power monitor calibration requiring stable component supply and long-lifecycle availability.
Supply support for HZ9C2JTA-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, and power devices for industrial, automotive, and infrastructure markets.
The HZ-L Series was designed specifically for low-noise, high-stability voltage reference applications in precision analog signal chains, targeting metrology, medical instrumentation, and sensor interface systems.
FAQ
What is the exact zener voltage range for HZ9C2JTA-E at 0.5 mA test current?
The HZ9C2JTA-E has a guaranteed zener voltage range of 9.1 V minimum to 9.5 V maximum when measured at IZ = 0.5 mA and Ta = 25°C, as specified in Renesas document REJ03G0182-0300 Rev.3.00. This 0.4 V window reflects tight process control for precision reference use, and the HZ9C2JTA-E's value falls within this binning range.
Does HZ9C2JTA-E have a documented noise specification relative to standard Zener diodes?
Yes - Renesas explicitly states the HZ-L Series, including HZ9C2JTA-E, achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series. This low-noise performance is intrinsic to the silicon planar structure and processing, and is validated across the full 5.2 V–38 V family, making HZ9C2JTA-E suitable for high-resolution data acquisition systems.
What is the maximum allowable reverse current before breakdown for HZ9C2JTA-E?
The HZ9C2JTA-E specifies a maximum reverse leakage current (IR) of 1 μA at VR = 2.0 V, per its Electrical Characteristics table. This parameter is measured well below zener onset and confirms suitability for high-impedance bias networks where leakage-induced error must remain below nanoscale thresholds.
Is HZ9C2JTA-E compatible with standard DO-35 footprint and reflow profiles?
Yes - HZ9C2JTA-E uses the JEITA-standard DO-35 package (code GRZZ0002ZB-A), with axial leads and defined mechanical dimensions (φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm). It is intended for through-hole assembly and rated for standard wave soldering; reflow is not recommended due to glass-body thermal limits.
What is the zener voltage temperature coefficient of HZ9C2JTA-E?
The HZ9C2JTA-E exhibits a zener voltage temperature coefficient near zero - approximately 0 mV/°C - as shown in Figure 2 of the Renesas datasheet for the 9.1–9.5 V range. This behavior results from the balance between avalanche and Zener mechanisms at this voltage, minimizing drift over −55°C to +175°C operating range.
HZ9C2JTA-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:
- -
HZ9C2JTA-E FAQ
1.How can I place an order for HZ9C2JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ9C2JTA-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 HZ9C2JTA-E reliable?
The price and inventory of HZ9C2JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ9C2JTA-E is usually 5 days.
3.What payment methods are accepted for HZ9C2JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ9C2JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ9C2JTA-E?
HZ9C2JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ9C2JTA-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 HZ9C2JTA-E?
For technical support, including HZ9C2JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ9C2JTA-E requirements.
6.How does Aetrix verify that HZ9C2JTA-E is sourced from the original manufacturer or authorized distributors?
All HZ9C2JTA-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 HZ9C2JTA-E meets industry standards.
7.What is the process for return or replacement of HZ9C2JTA-E?
All HZ9C2JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ9C2JTA-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 HZ9C2JTA-E part is unused and in its original packaging.
Return procedure for HZ9C2JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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