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Renesas HZ6A2L-E
- Part No.:
- HZ6A2L-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
HZ6A2L-E.pdf
- Description:
- DIODE ZENER 6.2V 400MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:19,887
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Product details
Overview
HZ6A2L-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 5.45 V (min 5.3 V / max 5.6 V), dynamic resistance of 150 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in reference voltage generators and low-drift sensor signal conditioning.
For engineers reviewing the HZ6A2L-E datasheet, HZ6A2L-E pinout, HZ6A2L-E application, or HZ6A2L-E equivalent, key selection criteria include zener voltage tolerance (±0.15 V), low-noise performance versus standard HZ series, DO-35 package thermal derating above 25°C, and compatibility with DC-biased stabilization circuits requiring <1 μA reverse leakage.
Technical Context
The HZ6A2L-E operates as a two-terminal shunt regulator with fixed breakdown voltage defined under DC test conditions at IZ = 0.5 mA. Its low-noise design achieves approximately 1/3–1/10 the noise level of legacy HZ-series diodes, enabled by optimized silicon planar junction fabrication and controlled doping profiles.
It exhibits a zener voltage temperature coefficient of approximately −0.04 %/°C (−2.2 mV/°C) near 5.5 V, confirmed by Figure 2 in REJ03G0182-0300, and supports stable operation across −55°C to +175°C storage range with 400 mW power dissipation limited to 25°C ambient per Figure 3.
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 references. |
| Dynamic Resistance (rd) | 150 Ω max at IZ = 0.5 mA - ensures minimal output impedance variation under load transients. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal design baseline; derates linearly above 25°C per Fig.3. |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - enables ultra-low quiescent current biasing in high-impedance nodes. |
| Junction Temperature (Tj) | 175°C max - allows operation in thermally constrained industrial environments without thermal shutdown. |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - axial leaded glass-body package with orange body and navy-blue cathode band. |
Pinout & Package
DO-35 glass axial-leaded package: cylindrical glass body (φD ≈ 2.0 mm, L ≈ 26.0 mm), orange body color, navy-blue cathode band marking. Mass: 0.13 g (typ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated voltage node; reverse-biased during normal operation. |
| 2 (Anode) | Reference ground terminal | Typically tied to circuit common; establishes reference potential for VZ measurement. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | 1/3–1/10 noise vs. standard HZ series - critical for audio preamps and precision ADC references. |
| Tight VZ tolerance | ±0.15 V at 5.45 V - reduces calibration overhead in factory-trimmed instrumentation. |
| Low dynamic impedance | 150 Ω max at 0.5 mA - maintains regulation accuracy under varying load currents. |
| High thermal stability | 175°C max junction temperature - supports use in engine control modules and industrial PLCs. |
Applications
| High-Precision Reference Voltage | Low-Noise Audio Biasing |
|---|---|
Use Scenario: Generating stable 5.45 V reference for 16-bit SAR ADCs in medical data acquisition systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-drift, low-noise excitation to ADC voltage reference input. Use Value: Enables <0.01% full-scale error drift over temperature due to −0.04 %/°C tempco and 150 Ω rd. | Use Scenario: Biasing JFET-input op-amps in phono preamplifier stages where supply ripple must be suppressed below 1 μV. IC Role / Device Role / Timing Role: Low-noise DC voltage clamp establishing quiet bias point for gain-setting networks. Use Value: Delivers 1/10 noise of standard Zeners, directly lowering system integrated noise floor by >10 dB. |
| Sensor Signal Conditioning | Industrial Power Monitor Calibration |
Use Scenario: Stabilizing excitation voltage for platinum RTD bridges in process temperature transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant bridge current despite 12–24 V supply variation. Use Value: Limits excitation drift to <5 ppm/°C, enabling Class A RTD accuracy per IEC 60751. | Use Scenario: Calibrating isolated DC-DC converter feedback dividers in DIN-rail power monitors. IC Role / Device Role / Timing Role: Factory-trimmed reference source used during end-of-line calibration to set ±0.1% output tolerance. Use Value: Tight 5.45 V ±0.15 V window eliminates need for post-calibration trimming resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5226B (ON Semiconductor) | 5.1 V nominal, ±5% tolerance (±0.255 V), rd = 17 Ω @ 20 mA - higher test current, wider VZ spread | Designed for general-purpose regulation; not characterized for low-noise operation | Select only if noise immunity is non-critical and tighter VZ tolerance is unnecessary |
| BZX55-C5V6 (Vishay) | 5.6 V nominal, ±5% tolerance (±0.28 V), rd = 40 Ω @ 5 mA - lower rd but higher IZ test condition | Optimized for cost-sensitive consumer power supplies, not low-noise analog circuits | Preferable for high-current shunt regulation but unsuitable for sub-μA bias or audio-grade noise specs |
Compared with 1N5226B and BZX55-C5V6, the HZ6A2L-E delivers superior voltage precision (±0.15 V vs. ±0.255 V/±0.28 V), verified low-noise performance, and tighter thermal coefficient - making it the sole choice for metrology-grade references where noise and drift dominate error budgets.
Availability
HZ6A2L-E is available at Aetrix Electronics and suitable for high-precision reference voltage generation, low-noise audio biasing, and sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for HZ6A2L-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 leader delivering microcontrollers, analog power, and timing solutions for automotive, industrial, and infrastructure markets.
The HZ-L Series was engineered specifically for low-noise, high-stability voltage reference applications in analog signal chains - targeting instrumentation, medical devices, and precision measurement equipment where conventional Zeners introduce unacceptable noise or drift.
FAQ
What is the exact zener voltage range specified for HZ6A2L-E?
The HZ6A2L-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, yielding a nominal value of 5.45 V with ±0.15 V tolerance. This specification is explicitly listed in Table "Electrical Characteristics" on page 2 of REJ03G0182-0300 Rev.3.00 and applies solely to the HZ6A2L-E variant within the HZ-L family.
Does HZ6A2L-E support operation above 100°C ambient temperature?
Yes, the HZ6A2L-E is rated for storage from −55°C to +175°C and junction temperature up to 175°C. Its power dissipation derates linearly above 25°C ambient per Figure 3 on page 4 of REJ03G0182-0300; at 100°C ambient, usable Pd drops to ~240 mW. Thermal design must ensure Tj ≤ 175°C, requiring appropriate PCB copper area or airflow for the DO-35 package.
How does the noise performance of HZ6A2L-E compare to standard Zener diodes?
The HZ6A2L-E achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series, as stated in the "Features" section on page 1 of REJ03G0182-0300. This low-noise characteristic results from proprietary silicon planar junction processing and is validated for use in precision analog circuits - unlike generic Zeners such as 1N5226B, which lack published noise specifications.
What is the reverse leakage current specification for HZ6A2L-E?
The HZ6A2L-E specifies a maximum reverse leakage current (IR) of 1 μA at VR = 2.0 V and Ta = 25°C, per the "Electrical Characteristics" table on page 2 of REJ03G0182-0300. This ultra-low leakage enables high-impedance bias networks and minimizes error in precision current sources where leakage would otherwise dominate offset.
Is HZ6A2L-E supplied in tape-and-reel or bulk packaging?
The HZ6A2L-E is supplied in bulk packaging per the "Ordering Information" on page 1 of REJ03G0182-0300, consistent with standard DO-35 axial-leaded components. Renesas does not list tape-and-reel (TR) or ammo pack options for this variant; Aetrix Electronics offers bulk tubes compatible with manual or semi-automated placement workflows.
HZ6A2L-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- HZ-L
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2.42%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-35
HZ6A2L-E FAQ
1.How can I place an order for HZ6A2L-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A2L-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 HZ6A2L-E reliable?
The price and inventory of HZ6A2L-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A2L-E is usually 5 days.
3.What payment methods are accepted for HZ6A2L-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A2L-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6A2L-E?
HZ6A2L-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A2L-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 HZ6A2L-E?
For technical support, including HZ6A2L-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A2L-E requirements.
6.How does Aetrix verify that HZ6A2L-E is sourced from the original manufacturer or authorized distributors?
All HZ6A2L-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 HZ6A2L-E meets industry standards.
7.What is the process for return or replacement of HZ6A2L-E?
All HZ6A2L-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A2L-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 HZ6A2L-E part is unused and in its original packaging.
Return procedure for HZ6A2L-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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