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Renesas HZ5ALL-JTA
- Part No.:
- HZ5ALL-JTA
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ5ALL-JTA.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
HZ5ALL-JTA from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 5.5 V (min 5.2 V, max 5.5 V), 400 mW power dissipation, 80 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package with navy-blue cathode band. It serves as a stable reference in low-drift power supply feedback paths and sensor biasing networks.
For engineers reviewing the HZ5ALL-JTA datasheet, HZ5ALL-JTA pinout, HZ5ALL-JTA application, or HZ5ALL-JTA equivalent, key selection criteria include its low-noise performance (1/3–1/10 that of standard HZ series), tight zener voltage tolerance, low leakage, and suitability for temperature-sensitive analog references where stability and minimal voltage drift are critical.
Technical Context
The HZ5ALL-JTA operates as a two-terminal voltage reference device using silicon planar junction technology. Its zener breakdown mechanism is optimized for low noise generation and stable operation at low test currents (0.5 mA), with specified dynamic resistance measured under DC conditions.
It exhibits a negative zener voltage temperature coefficient near 5.5 V - typically −0.06 %/°C - and is rated for junction temperatures up to 175°C. The device is not designed for surge or transient suppression but for continuous, low-power precision regulation in linear feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2 V min to 5.5 V max at IZ = 0.5 mA - defines stable reference range for feedback networks requiring tight tolerance |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under small load current changes |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Current (IR) | 1 μA max at VR = 2.0 V - guarantees low leakage in high-impedance bias/reference nodes |
| Junction Temperature (Tj) | 175°C max - enables reliable operation in industrial ambient environments with limited thermal margin |
| Noise Level | Approximately 1/3–1/10 that of standard HZ series - reduces unwanted signal modulation in audio, instrumentation, and ADC reference paths |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy-blue cathode band. Mass: 0.13 g. Dimensions: φD = 2.0 mm, L = 26.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated output or op-amp inverting input; polarity must be observed to maintain reverse-bias operation |
| 2 (Anode) | Ground or low-side reference node | Typically tied to system ground or current-sink path; establishes reference potential for feedback loop |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Reduces broadband voltage noise in precision analog references by up to 90% vs. legacy HZ series |
| Tight zener voltage tolerance | ±0.15 V window at 5.5 V nominal enables accurate calibration without post-trim adjustment |
| Low dynamic impedance | 80 Ω ensures <1 mV output shift per 12.5 μA load change - critical for high-resolution DAC/ADC references |
| Stable temperature coefficient | Negative γZ ≈ −0.06 %/°C minimizes drift across −55°C to +125°C operating range |
| DO-35 glass package | Hermetic seal and axial lead geometry support long-term reliability in humid or thermally cycled environments |
Applications
| Instrumentation Amplifier Reference | Low-Drift Sensor Biasing |
|---|---|
Use Scenario: Providing stable excitation voltage to bridge-based pressure or strain sensors in data acquisition systems. IC Role / Device Role / Timing Role: Zener reference source for ratiometric sensor excitation, directly connected to Wheatstone bridge top rail. Use Value: Low noise and tight VZ tolerance ensure <0.01% full-scale error contribution from reference drift over temperature. | Use Scenario: Supplying bias current to photodiodes or thermopiles in medical-grade pulse oximeters. IC Role / Device Role / Timing Role: Low-leakage, low-noise voltage reference for transimpedance amplifier feedback network. Use Value: 1 μA max reverse leakage prevents signal corruption in picoamp-level photocurrent measurements. |
| Linear Regulator Feedback Node | Precision ADC Voltage Reference |
Use Scenario: Setting output voltage of adjustable LDOs (e.g., TLV707) in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Shunt reference element in resistor-divider feedback path of control IC. Use Value: 400 mW rating allows robust operation even during brief load transients without thermal runaway. | Use Scenario: External reference for 16-bit SAR ADCs (e.g., ADS8860) in industrial process monitoring. IC Role / Device Role / Timing Role: Primary analog reference source replacing internal bandgap to improve INL and DNL performance. Use Value: 80 Ω dynamic resistance limits reference voltage droop to <0.4 mV during ADC conversion current pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V6 (ON Semiconductor) | Zener voltage 5.6 V ±5%, 500 mW rating, 40 Ω rd, higher noise than HZ5ALL-JTA | Higher power handling but less stable at low currents; unsuitable for sub-1 μA leakage-critical designs | Select when higher power margin is needed and noise is secondary to cost |
| MMSZ5226B (Vishay) | Zener voltage 3.3 V nominal, SOD-123 package, 500 mW, 15 Ω rd, surface-mount only | Not voltage-compatible; requires redesign for 5.5 V reference; better for space-constrained PCBs | Choose only if board redesign accommodates SMT and lower VZ with external scaling |
Compared with BZX55C5V6 and MMSZ5226B, the HZ5ALL-JTA delivers superior low-noise performance and tighter voltage tolerance at 5.5 V while maintaining through-hole DO-35 compatibility - making it optimal for legacy-reliant, high-accuracy analog systems where noise floor and thermal drift dominate design constraints.
Availability
HZ5ALL-JTA is available at Aetrix Electronics and suitable for precision instrumentation, medical sensor interfaces, and industrial ADC reference circuits requiring stable component supply with traceable lot history and long-lifecycle support.
Supply support for HZ5ALL-JTA 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 automotive, industrial, and infrastructure markets.
The HZ-L Series was developed specifically for low-noise, high-stability voltage reference applications in analog signal chains - targeting designers needing predictable zener characteristics without post-calibration.
FAQ
What is the exact zener voltage range specified for HZ5ALL-JTA?
The HZ5ALL-JTA has a guaranteed zener voltage range of 5.2 V minimum to 5.5 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V window reflects tight process control for precision reference use, and the value is confirmed in the Renesas REJ03G0182-0300 datasheet on page 2 under Electrical Characteristics.
Does HZ5ALL-JTA support surface-mount assembly?
No, the HZ5ALL-JTA uses a DO-35 axial glass package with leads intended for through-hole mounting. It is not compatible with reflow or wave soldering processes used for SMT components. For surface-mount alternatives, consider evaluating Renesas' HZ-L Series SMD variants - but note that HZ5ALL-JTA itself is strictly through-hole.
What is the maximum allowable reverse current before breakdown in HZ5ALL-JTA?
The HZ5ALL-JTA specifies a maximum reverse current (IR) of 1 μA at VR = 2.0 V, confirming very low leakage below the zener knee. This parameter is critical for high-impedance bias networks and is measured per the REJ03G0182-0300 datasheet on page 2, ensuring minimal error contribution in precision analog circuits using HZ5ALL-JTA.
How does the noise performance of HZ5ALL-JTA compare to standard Zener diodes?
The HZ5ALL-JTA achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners due to optimized silicon planar junction design and low-current operation. This reduction is explicitly documented in the "Features" section of the REJ03G0182-0300 datasheet and makes HZ5ALL-JTA suitable for audio preamps, high-resolution ADC references, and low-drift instrumentation where noise floor matters.
Is HZ5ALL-JTA suitable for use in automotive applications?
No - the HZ5ALL-JTA is not qualified for automotive applications per Renesas documentation. The REJ03G0182-0300 datasheet states that unless explicitly designated for automobile use, Renesas products like HZ5ALL-JTA are not designed or tested for safety-critical automotive systems. For such use, consult Renesas' AEC-Q101-qualified Zener portfolio instead of relying on HZ5ALL-JTA.
HZ5ALL-JTA 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:
- -
HZ5ALL-JTA FAQ
1.How can I place an order for HZ5ALL-JTA through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ5ALL-JTA 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 HZ5ALL-JTA reliable?
The price and inventory of HZ5ALL-JTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ5ALL-JTA is usually 5 days.
3.What payment methods are accepted for HZ5ALL-JTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ5ALL-JTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ5ALL-JTA?
HZ5ALL-JTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ5ALL-JTA 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 HZ5ALL-JTA?
For technical support, including HZ5ALL-JTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ5ALL-JTA requirements.
6.How does Aetrix verify that HZ5ALL-JTA is sourced from the original manufacturer or authorized distributors?
All HZ5ALL-JTA 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 HZ5ALL-JTA meets industry standards.
7.What is the process for return or replacement of HZ5ALL-JTA?
All HZ5ALL-JTA units undergo pre-shipment inspection (PSI). If there is an issue with HZ5ALL-JTA, 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 HZ5ALL-JTA part is unused and in its original packaging.
Return procedure for HZ5ALL-JTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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