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Renesas HZ6A2J-E
- Part No.:
- HZ6A2J-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6A2J-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:11,000
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Product details
Overview
HZ6A2J-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 5.45 V (min 5.3 V / max 5.6 V), 400 mW power dissipation, 80 Ω dynamic resistance at 0.5 mA test current, and DO-35 glass package with navy-blue cathode band. It serves in stabilized reference supplies for instrumentation amplifiers and sensor signal conditioning.
For engineers reviewing the HZ6A2J-E datasheet, HZ6A2J-E pinout, HZ6A2J-E application, or HZ6A2J-E equivalent, key selection criteria include zener voltage tolerance (±0.15 V), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.02 %/°C typical), and thermal derating above 25°C ambient.
Technical Context
The HZ6A2J-E operates as a two-terminal voltage reference device using silicon planar junction technology optimized for reduced flicker and thermal noise. Its zener breakdown mechanism is designed for stable DC regulation under low-current conditions (IZ = 0.5 mA).
It exhibits a negative temperature coefficient of −0.02 %/°C near 5.5 V, consistent with low-voltage zener behavior, and maintains low dynamic impedance (80 Ω) to minimize output voltage variation under load transients in feedback references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.3 V min / 5.6 V max at IZ = 0.5 mA - defines tight 5.45 V ±0.15 V regulation window for precision biasing |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under small-signal load variations |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with adequate heatsinking |
| Reverse Current (IR) | 1 μA max at VR = 2.0 V - guarantees low leakage in high-impedance reference nodes |
| Junction Temperature (Tj) | 175°C max - enables reliable operation in industrial environments with localized heating |
| Temperature Coefficient (γZ) | −0.02 %/°C typical at 5.5 V - provides predictable, linear drift for compensated reference designs |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy-blue cathode band, 2.0 mm diameter × 26.0 mm length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Negative terminal of zener junction | Connected to regulated output node; polarity must be observed to maintain reverse-bias conduction |
| 2 (Anode) | Positive terminal of zener junction | Connected to ground or lower-potential rail; completes bias path for stable breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener structure | Diode noise level ≈ 1/3–1/10 that of standard HZ series - critical for audio preamps and high-resolution ADC references |
| Low dynamic impedance | 80 Ω max at 0.5 mA - improves regulation accuracy under varying load currents in feedback loops |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2 V to 38 V - allows standardized design reuse across multiple voltage rails |
| Stable temperature coefficient | −0.02 %/°C typical at 5.5 V - enables predictable drift compensation in temperature-sensitive analog stages |
Applications
| Instrumentation Amplifier Reference | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable bias voltage to op-amp input stages in precision measurement front-ends. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference establishing fixed common-mode level. Use Value: Low 80 Ω dynamic resistance minimizes gain error drift caused by source impedance interaction. | Use Scenario: Supplying excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in industrial transmitters. IC Role / Device Role / Timing Role: Low-noise DC reference source for ratiometric signal conversion. Use Value: Reduced diode noise directly improves signal-to-noise ratio in microvolt-level differential outputs. |
| Low-Power Data Acquisition | Analog Front-End Power Sequencing |
Use Scenario: Generating clean 5.5 V reference for SAR ADCs in battery-powered portable meters. IC Role / Device Role / Timing Role: Shunt regulator maintaining stable reference despite supply ripple and load transients. Use Value: 400 mW rating allows operation at 0.5 mA without thermal runaway in unheatsinked layouts. | Use Scenario: Establishing controlled turn-on threshold for supervisor ICs or reset generators during system power-up. IC Role / Device Role / Timing Role: Precision voltage threshold element defining logic-high transition point. Use Value: Tight ±0.15 V zener tolerance ensures repeatable reset assertion timing across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Zener voltage 5.1 V ±5%, rd = 9 Ω at 49 mA, Pd = 1 W, DO-41 package | Higher power, higher test current, less precise voltage tolerance, higher noise | Prefer when higher current drive or wider voltage tolerance is acceptable and board space permits larger DO-41 footprint |
| BZX55-C5V1 | Zener voltage 5.1 V ±5%, rd = 600 Ω at 5 mA, Pd = 500 mW, DO-35 package | Higher dynamic resistance, looser tolerance, no low-noise specification | Acceptable for non-critical references where cost is prioritized over noise and regulation stability |
Compared with 1N4733A and BZX55-C5V1, the HZ6A2J-E delivers tighter voltage tolerance (±0.15 V vs. ±5%), lower noise, and optimized low-current regulation at 0.5 mA - making it superior for precision analog signal chains where reference integrity directly impacts measurement resolution.
Availability
HZ6A2J-E is available at Aetrix Electronics and suitable for instrumentation amplifier reference, sensor signal conditioning, and low-power data acquisition requiring stable component supply with traceable lot control and long-term obsolescence management.
Supply support for HZ6A2J-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 Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog mixed-signal devices, and power management ICs for industrial, automotive, and infrastructure markets.
The HZ-L Series was developed specifically for low-noise, precision voltage reference applications in analog signal chains - targeting designers needing improved regulation stability and reduced broadband noise versus legacy zener families.
FAQ
What is the exact zener voltage range specified for HZ6A2J-E?
The HZ6A2J-E has a guaranteed zener voltage range of 5.3 V minimum to 5.6 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 5.45 V ±0.15 V window reflects tight process control for precision reference use, distinct from broader-tolerance variants like HZ6A1L (5.2–5.5 V) or HZ6A3L (5.4–5.7 V).
Does HZ6A2J-E require a minimum zener current to maintain regulation?
Yes, the HZ6A2J-E requires a minimum zener current of 0.5 mA to achieve its specified dynamic resistance and voltage tolerance. Operation below this current may result in increased rd, elevated noise, and deviation from the rated VZ; datasheet characterization is performed exclusively at IZ = 0.5 mA.
Is HZ6A2J-E compatible with lead-free reflow soldering processes?
Yes, the HZ6A2J-E's DO-35 glass package and internal construction are qualified for standard lead-free reflow profiles (per J-STD-20), including peak temperatures up to 260°C for 10 seconds. The device's maximum junction temperature rating of 175°C provides sufficient margin for compliant thermal cycling.
How does the noise performance of HZ6A2J-E compare to standard zener diodes?
The HZ6A2J-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series zeners due to proprietary silicon planar processing and junction optimization. This reduction is verified in low-frequency (<10 kHz) and broadband measurements, making HZ6A2J-E suitable for audio preamplifiers and high-resolution data converters where reference noise dominates system SNR.
Can HZ6A2J-E be used in series or parallel configurations for higher voltage or current capability?
No - the HZ6A2J-E is not characterized or recommended for series or parallel operation. Variations in zener voltage tolerance and temperature coefficient between units cause current imbalance and thermal runaway risks. For higher voltage needs, select an appropriate single-device variant from the HZ-L family (e.g., HZ12B2L for ~12.7 V); for higher current, use an active regulator stage driven by HZ6A2J-E.
HZ6A2J-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:
- -
HZ6A2J-E FAQ
1.How can I place an order for HZ6A2J-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A2J-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 HZ6A2J-E reliable?
The price and inventory of HZ6A2J-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A2J-E is usually 5 days.
3.What payment methods are accepted for HZ6A2J-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A2J-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6A2J-E?
HZ6A2J-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A2J-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 HZ6A2J-E?
For technical support, including HZ6A2J-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A2J-E requirements.
6.How does Aetrix verify that HZ6A2J-E is sourced from the original manufacturer or authorized distributors?
All HZ6A2J-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 HZ6A2J-E meets industry standards.
7.What is the process for return or replacement of HZ6A2J-E?
All HZ6A2J-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A2J-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 HZ6A2J-E part is unused and in its original packaging.
Return procedure for HZ6A2J-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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