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Renesas HZ6A1L-JTA
- Part No.:
- HZ6A1L-JTA
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6A1L-JTA.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZ6A1L-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 5.2–5.5 V, 400 mW power dissipation, 150 Ω dynamic impedance at 0.5 mA, and −55 to +175 °C storage temperature range. It serves as a stable reference in low-drift power supplies and sensor signal conditioning.
For engineers reviewing the HZ6A1L-JTA datasheet, HZ6A1L-JTA pinout, HZ6A1L-JTA application, or HZ6A1L-JTA equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 that of standard HZ series), DO-35 package compatibility, and thermal stability across industrial ambient conditions.
Technical Context
The HZ6A1L-JTA operates as a two-terminal shunt regulator with DC-tested zener characteristics, designed for low-noise biasing in analog front-ends and reference circuits. Its junction temperature rating of 175 °C supports high-reliability operation in thermally constrained environments.
Zener voltage is specified at 0.5 mA test current with ±0.3 V min/max spread, and dynamic resistance is measured at 0.5 mA with VR ≤ 2.0 V - confirming tight regulation under light-load conditions typical of reference node stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–5.5 V at IZ = 0.5 mA - defines precise DC reference level for feedback networks |
| Power Dissipation (Pd) | 400 mW - enables stable operation without heatsinking in compact PCB layouts |
| Dynamic Resistance (rd) | 150 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current (IR) | 1 μA max at VR = 2.0 V - guarantees low leakage in high-impedance reference paths |
| Junction Temperature (Tj) | 175 °C - supports continuous operation in automotive under-hood or industrial control enclosures |
| Storage Temperature | −55 to +175 °C - validates suitability for extended environmental qualification testing |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded, orange body with navy-blue cathode band. Mass: 0.13 g. Dimensions per SC-40 standard: φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to avoid reverse breakdown failure |
| 2 (Anode) | Reference ground return path | Completes shunt regulation loop; low-inductance trace routing recommended for noise-sensitive designs |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Noise level ≈ 1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V - allows single-supplier sourcing across multiple board revisions |
| Stable temperature coefficient | γZ ≈ −0.02 %/°C near 5.2 V - minimizes drift in unregulated supply rails over −40 to +85 °C |
| High reliability packaging | DO-35 glass encapsulation with 175 °C Tj rating - meets industrial lifecycle requirements without derating |
Applications
| Instrumentation Reference | Low-Noise Audio Biasing |
|---|---|
Use Scenario: Precision multimeter front-end requiring stable 5.2 V reference for 24-bit delta-sigma ADC calibration. IC Role / Device Role / Timing Role: Shunt voltage reference providing temperature-stable bias for op-amp input stages and DAC buffers. Use Value: 150 Ω rd and low noise ensure <1 μVpp ripple contribution, preserving ENOB in metrology-grade measurements. | Use Scenario: High-fidelity microphone preamplifier requiring ultra-low-noise DC bias for JFET input stage. IC Role / Device Role / Timing Role: Low-noise zener source replacing higher-noise TL431-based references in phantom power circuits. Use Value: 1/3–1/10 noise reduction vs. standard HZ series directly lowers system noise floor by 10–15 dB(A). |
| Industrial Sensor Signal Conditioning | Programmable Logic Controller (PLC) Input Protection |
Use Scenario: 4–20 mA transmitter with RTD bridge interface needing stable excitation reference unaffected by ambient temperature swings. IC Role / Device Role / Timing Role: Zener-regulated excitation source for Wheatstone bridge, decoupled from unregulated 24 V rail. Use Value: −0.02 %/°C tempco and 175 °C Tj rating maintain <0.1% full-scale error across −40 to +85 °C operating range. | Use Scenario: Analog input module protecting 0–10 V measurement channels against transient overvoltage events. IC Role / Device Role / Timing Role: Clamping element in parallel with input RC filter, absorbing surge energy while holding voltage below ADC damage threshold. Use Value: 400 mW Pd and fast zener turn-on enable reliable clamping of 100 ns–1 μs transients without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V1 (ON Semiconductor) | Zener voltage 5.1 V ±5%, rd = 600 Ω, Pd = 500 mW, DO-35 package | Higher dynamic impedance increases output sensitivity to load changes; wider VZ tolerance affects absolute accuracy | Select when cost sensitivity outweighs noise and regulation precision requirements |
| 1N4733A (Vishay) | Zener voltage 5.1 V ±5%, rd = 17 Ω, Pd = 1 W, DO-41 package | Lower rd improves regulation but larger DO-41 footprint conflicts with space-constrained layouts; higher Pd requires thermal margin review | Select when higher power handling is needed and board area permits DO-41 placement |
Compared with BZX55C5V1 and 1N4733A, the HZ6A1L-JTA delivers superior noise performance and tighter VZ tolerance in the same DO-35 footprint, making it optimal for high-accuracy, low-drift analog systems where signal integrity is prioritized over raw power capacity or cost.
Availability
HZ6A1L-JTA is available at Aetrix Electronics and suitable for instrumentation reference design, low-noise audio biasing, and industrial sensor signal conditioning requiring stable component supply and long-term obsolescence management.
Supply support for HZ6A1L-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 leader delivering microcontrollers, analog power, and connectivity solutions for automotive, industrial, and IoT applications.
The HZ-L Series is part of Renesas' precision analog portfolio, engineered specifically for low-noise voltage reference and regulation in high-fidelity measurement and sensing systems.
FAQ
What is the exact zener voltage range for HZ6A1L-JTA?
The HZ6A1L-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 tolerance supports precision reference applications where absolute voltage accuracy is critical. The HZ6A1L-JTA's narrow spread distinguishes it from broader-tolerance alternatives like BZX55C5V1.
Is HZ6A1L-JTA compatible with standard DO-35 footprints?
Yes, the HZ6A1L-JTA uses the JEITA-standard DO-35 package (code GRZZ0002ZB-A) with defined dimensions: φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm. Its axial leads and orange body with navy-blue cathode band match industry-standard DO-35 assembly processes, enabling drop-in replacement in existing layouts designed for DO-35 zeners.
How does the noise performance of HZ6A1L-JTA compare to legacy HZ-series diodes?
The HZ6A1L-JTA achieves approximately 1/3 to 1/10 the noise level of standard HZ-series Zener diodes, as confirmed in Renesas' REJ03G0182-0300 specification document. This improvement stems from optimized silicon planar processing and low-leakage junction design - directly benefiting low-level analog circuits such as microphone preamps and precision ADC references where HZ6A1L-JTA is deployed.
What is the maximum allowable reverse current for HZ6A1L-JTA before regulation degrades?
The HZ6A1L-JTA specifies a maximum reverse current (IR) of 1 μA at VR = 2.0 V, ensuring minimal leakage in high-impedance reference nodes. Exceeding this condition risks increased temperature-dependent drift and compromised regulation stability. For reliable operation, the HZ6A1L-JTA must be biased within its 0.5–1 mA zener test current window to maintain specified VZ and rd.
Can HZ6A1L-JTA operate continuously at 125 °C ambient temperature?
Yes, the HZ6A1L-JTA supports continuous operation at 125 °C ambient temperature when power dissipation remains within derated limits - per Figure 3 in REJ03G0182-0300, Pd reduces linearly to ~250 mW at 125 °C. Its 175 °C junction rating and −55 to +175 °C storage range make the HZ6A1L-JTA suitable for under-hood automotive and industrial control applications where thermal margins are constrained.
HZ6A1L-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:
- -
HZ6A1L-JTA FAQ
1.How can I place an order for HZ6A1L-JTA through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A1L-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 HZ6A1L-JTA reliable?
The price and inventory of HZ6A1L-JTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A1L-JTA is usually 5 days.
3.What payment methods are accepted for HZ6A1L-JTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A1L-JTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6A1L-JTA?
HZ6A1L-JTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A1L-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 HZ6A1L-JTA?
For technical support, including HZ6A1L-JTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A1L-JTA requirements.
6.How does Aetrix verify that HZ6A1L-JTA is sourced from the original manufacturer or authorized distributors?
All HZ6A1L-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 HZ6A1L-JTA meets industry standards.
7.What is the process for return or replacement of HZ6A1L-JTA?
All HZ6A1L-JTA units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A1L-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 HZ6A1L-JTA part is unused and in its original packaging.
Return procedure for HZ6A1L-JTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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