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Renesas HZS6A1TA-E
- Part No.:
- HZS6A1TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS6A1TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZS6A1TA-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 6.3 V (min) to 6.6 V (max), 400 mW power dissipation, and dynamic resistance of 2.0 Ω at 5 mA test current - deployed in industrial control logic rails and sensor biasing circuits.
For engineers reviewing the HZS6A1TA-E datasheet, HZS6A1TA-E pinout, HZS6A1TA-E application, or HZS6A1TA-E equivalent, this device serves as a discrete voltage reference in linear regulator feedback paths, overvoltage clamp networks, and analog signal conditioning stages where tight tolerance and low impedance are required.
Technical Context
The HZS6A1TA-E operates as a two-terminal, DC-biased voltage reference using silicon planar junction technology. Its zener breakdown mechanism delivers stable reverse conduction starting at 6.3–6.6 V with minimal temperature drift (γZ ≈ −0.02 %/°C near 6.5 V) and low leakage (<25 µA at 0.5 V below VZ).
It is rated for continuous operation up to 200°C junction temperature and supports automatic insertion via 5 mm pitch PCB layout. The device exhibits 2.0 Ω dynamic resistance at IZ = 5 mA, enabling fast transient response in regulation loops without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.3 V min to 6.6 V max at IZ = 5 mA - defines precise clamping threshold for 5 V–6 V rail monitoring and protection. |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports sustained regulation in compact SMD layouts without forced cooling. |
| Dynamic Resistance (rd) | 2.0 Ω at IZ = 5 mA - ensures minimal output voltage shift under load transients in feedback networks. |
| Reverse Leakage (IR) | ≤25 µA at VR = 0.5 V below VZ - guarantees negligible quiescent current draw in high-impedance bias circuits. |
| Junction Temperature (Tj) | 200°C maximum - enables reliable operation in thermally constrained industrial enclosures and motor drive PCBs. |
| Package Type | MHD (Mini-High-Density) - surface-mount package with 2.0 mm diameter, 26.0 mm lead length, optimized for high-speed auto-insertion. |
Pinout & Package
MHD package: axial-lead, glass-passivated silicon planar diode with cathode band marking; leads tinned for solderability; mass ≈ 0.084 g; JEITA code GRZZ0002ZC-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated output or error amplifier inverter input; carries full zener current during regulation. |
| 2 (Anode) | Low-side return path | Ground or common reference point; completes current loop and establishes VZ potential across terminals. |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 2.0 Ω at 5 mA enables <10 mV output shift under ±1 mA load step - critical for ADC reference stability. |
| Wide VZ grade range | A1 grade (6.3–6.6 V) provides tighter tolerance than standard B/C grades - reduces calibration overhead in production test. |
| High thermal robustness | 200°C max junction temperature allows use in proximity to power MOSFETs or transformers without derating. |
| Automated assembly compatibility | 5 mm pitch and MHD form factor support high-throughput placement on industrial control PCBs. |
Applications
| Industrial Sensor Biasing | Microcontroller Reset Clamping |
|---|---|
|
Use Scenario: Providing stable 6.3–6.6 V bias to bridge-type pressure sensors in factory-floor transmitters. IC Role / Device Role / Timing Role: Zener diode acting as passive voltage reference for Wheatstone bridge excitation. Use Value: Low dynamic resistance maintains excitation accuracy within ±0.5% despite 100 µA sensor current variation. |
Use Scenario: Clamping reset line voltage to prevent false MCU resets during brown-out conditions. IC Role / Device Role / Timing Role: Overvoltage limiter protecting reset IC input against supply surges above 6.6 V. Use Value: 400 mW power rating absorbs 100 ms transients up to 100 mA without failure. |
| Linear Regulator Feedback | Analog Signal Level Shifting |
|
Use Scenario: Setting output voltage of adjustable LDOs (e.g., TLV707) via resistor divider into error amplifier. IC Role / Device Role / Timing Role: Precision reference element defining regulation setpoint in feedback network. Use Value: Tight A1-grade VZ tolerance eliminates need for post-solder trimming in volume production. |
Use Scenario: Shifting ±2.5 V op-amp output to 0–5 V range for ADC input in data acquisition modules. IC Role / Device Role / Timing Role: Clamp diode establishing upper rail limit at 6.6 V to protect downstream converter input. Use Value: 25 µA max leakage avoids loading high-Z op-amp outputs and preserves signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C6V2 (ON Semiconductor) | VZ = 6.2 V ±5%, Pd = 500 mW, rd = 10 Ω - higher impedance, wider tolerance. | Suitable for non-critical clamping; less stable under varying load currents than HZS6A1TA-E. | Select when cost sensitivity outweighs regulation precision and thermal margin requirements. |
| MMBZ5233B (Diodes Inc.) | VZ = 6.0 V ±5%, SOT-23 package, Pd = 350 mW - smaller footprint but lower power and looser grading. | Preferred for space-constrained portable designs; not rated for 200°C operation. | Choose only if board area is primary constraint and ambient temperature remains <105°C. |
Compared with BZX55C6V2 and MMBZ5233B, the HZS6A1TA-E offers superior voltage stability (A1-grade 6.3–6.6 V), lower dynamic impedance (2.0 Ω), and extended thermal capability (200°C), making it optimal for industrial-grade power supervision and precision analog circuits where long-term drift and thermal resilience matter.
Availability
HZS6A1TA-E is available at Aetrix Electronics and suitable for industrial control systems, sensor signal conditioning, and microcontroller power management requiring stable component supply across multi-year production cycles.
Supply support for HZS6A1TA-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 Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZS Series was developed as a family of silicon planar Zener diodes targeting high-reliability voltage stabilization in industrial power supplies and analog front-ends - emphasizing low leakage, tight grading, and automated assembly readiness.
FAQ
What is the exact zener voltage range specified for HZS6A1TA-E?
The HZS6A1TA-E has a guaranteed zener voltage range of 6.3 V minimum to 6.6 V maximum at a test current of 5 mA, corresponding to the A1 grade within the HZS6 family. This tight tolerance supports precision regulation without post-production calibration and is confirmed in Renesas document REJ03G0184-0500 Rev.5.00.
Does HZS6A1TA-E support surface-mount or through-hole assembly?
HZS6A1TA-E uses the MHD package - an axial-leaded, through-hole component with 5 mm pitch spacing, explicitly designed for high-speed automatic insertion. It is not a surface-mount device; its 26.0 mm lead length and 2.0 mm body diameter comply with GRZZ0002ZC-A JEITA specifications for wave soldering and pick-and-place feeders.
What is the maximum allowable junction temperature for HZS6A1TA-E?
The absolute maximum junction temperature for HZS6A1TA-E is 200°C, as stated in the Absolute Maximum Ratings table of the official Renesas datasheet. This rating permits operation in thermally demanding environments such as motor drive boards or enclosed industrial controllers without thermal derating below 400 mW at 25°C ambient.
How does the dynamic resistance of HZS6A1TA-E affect its performance in regulation circuits?
HZS6A1TA-E exhibits 2.0 Ω dynamic resistance at 5 mA, meaning a 1 mA change in zener current results in only ~2 mV output shift. This low rd ensures minimal voltage variation under load transients - critical in feedback paths of adjustable regulators and reference buffers where stability and accuracy are design priorities.
Is HZS6A1TA-E compliant with RoHS and halogen-free standards?
Yes, HZS6A1TA-E complies with the EU RoHS Directive and is halogen-free, consistent with Renesas Electronics' environmental policy outlined in their product documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and meets JEDEC JS709 requirements for bromine and chlorine content.
HZS6A1TA-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:
- -
HZS6A1TA-E FAQ
1.How can I place an order for HZS6A1TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS6A1TA-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 HZS6A1TA-E reliable?
The price and inventory of HZS6A1TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6A1TA-E is usually 5 days.
3.What payment methods are accepted for HZS6A1TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6A1TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS6A1TA-E?
HZS6A1TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS6A1TA-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 HZS6A1TA-E?
For technical support, including HZS6A1TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6A1TA-E requirements.
6.How does Aetrix verify that HZS6A1TA-E is sourced from the original manufacturer or authorized distributors?
All HZS6A1TA-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 HZS6A1TA-E meets industry standards.
7.What is the process for return or replacement of HZS6A1TA-E?
All HZS6A1TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6A1TA-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 HZS6A1TA-E part is unused and in its original packaging.
Return procedure for HZS6A1TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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