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Renesas HZ6A2LTA-E
- Part No.:
- HZ6A2LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6A2LTA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
HZ6A2LTA-E from Renesas Electronics 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, and maximum power dissipation of 400 mW in a DO-35 package. It is used in stabilized power supplies, reference voltage sources, and noise-sensitive instrumentation.
For engineers reviewing the HZ6A2LTA-E datasheet, HZ6A2LTA-E pinout, HZ6A2LTA-E application, or HZ6A2LTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (≈1/3–1/10 of standard HZ series), temperature coefficient (−0.04 %/°C typical), and DO-35 mechanical compatibility with through-hole PCB assembly.
Technical Context
The HZ6A2LTA-E employs a planar diffusion process to achieve low leakage current (≤1 μA at VR = 2.0 V) and stable zener impedance across operating temperature. Its junction temperature rating of 175°C supports operation in thermally demanding environments without derating below 100°C ambient.
This device operates under DC test conditions per JEITA standard, with zener voltage specified at IZ = 0.5 mA and reverse current limited to ≤1 μA at VR = 2.0 V. The −0.04 %/°C temperature coefficient ensures minimal drift over −55°C to +175°C storage range.
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 nominal regulation point for precision references. |
| Dynamic Resistance (rd) | 150 Ω max at IZ = 0.5 mA - enables low-output-impedance regulation critical for noise-sensitive analog stages. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact through-hole designs without forced cooling. |
| Reverse Current (IR) | ≤1 μA at VR = 2.0 V - ensures minimal standby leakage in battery-powered or high-impedance bias networks. |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - provides predictable, low-drift behavior in industrial temperature ranges. |
| Junction Temperature (Tj) | 175°C max - allows reliable operation in enclosed enclosures or near heat-generating components. |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial-lead, orange body with 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) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to avoid forward conduction. |
| 2 (Anode) | Reference ground return | Typically tied to system ground or negative rail; forms low-impedance return path for zener current. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener structure | Diode noise level ≈1/3–1/10 that of standard HZ series - directly improves SNR in precision ADC references and op-amp biasing. |
| Stable low-impedance regulation | rd = 150 Ω max at 0.5 mA - maintains 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 - enables standardized design reuse across multiple supply rails. |
| High thermal robustness | Tj = 175°C and Tstg = −55°C to +175°C - supports deployment in automotive under-hood or industrial control cabinets. |
Applications
| Industrial Sensor Signal Conditioning | Medical Instrumentation Reference |
|---|---|
Use Scenario: Low-drift voltage reference for bridge sensor amplifiers in pressure transducers and strain gauges. IC Role / Device Role / Timing Role: Zener diode providing stable 5.45 V reference for instrumentation amplifier bias and ADC reference input. Use Value: 150 Ω dynamic resistance and −0.04 %/°C tempco minimize offset drift and improve measurement repeatability over temperature. |
Use Scenario: Precision voltage clamp in ECG front-end analog signal chain to protect ADC inputs from overvoltage. IC Role / Device Role / Timing Role: Low-noise Zener clamping diode limiting common-mode swing while preserving signal integrity. Use Value: Ultra-low noise (1/10 HZ-series) prevents injection of switching artifacts into microvolt-level biopotential signals. |
| Programmable Logic Controller (PLC) I/O Module | Test & Measurement Equipment Power Rails |
Use Scenario: Isolated 5 V reference generation in 24 V DC input conditioning circuitry for digital input modules. IC Role / Device Role / Timing Role: Zener-based shunt regulator establishing clean local reference for optocoupler threshold detection. Use Value: 400 mW power rating and DO-35 mechanical reliability support long-term operation in industrial field environments. |
Use Scenario: Secondary voltage reference in benchtop multimeters and oscilloscope auxiliary supplies. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) Zener stabilizing calibration reference voltage against supply ripple. Use Value: Sub-μA reverse current ensures negligible loading on high-impedance DAC outputs or trimming potentiometers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A (ON Semiconductor) | Zener voltage 5.1 V ±5%, rd = 9 Ω, Pd = 1 W, DO-41 package | Higher power, lower impedance, but higher noise and looser tolerance than HZ6A2LTA-E | Select when higher current capability (>100 mA) and tighter rd are prioritized over noise and precision. |
| BZX55C5V1 (Vishay) | Zener voltage 5.1 V ±5%, rd = 600 Ω, Pd = 500 mW, DO-35 package | Same DO-35 footprint but significantly higher dynamic resistance and unverified low-noise performance | Acceptable for general-purpose regulation where noise and tempco are non-critical; not recommended for precision analog. |
Compared with 1N4733A and BZX55C5V1, the HZ6A2LTA-E delivers superior noise performance and tighter voltage tolerance in a DO-35 package, making it optimal for applications requiring stable, low-drift references rather than high-power shunting.
Availability
HZ6A2LTA-E is available at Aetrix Electronics and suitable for industrial sensor interfaces, medical instrumentation signal chains, and programmable logic controller (PLC) I/O modules requiring stable component supply and long-lifecycle support.
Supply support for HZ6A2LTA-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and advanced SoCs for industrial, automotive, and infrastructure markets.
The HZ-L Series was designed specifically for low-noise, precision voltage reference applications in test equipment, medical instruments, and industrial control systems where stability and signal integrity are critical.
FAQ
What is the exact zener voltage range for HZ6A2LTA-E?
The HZ6A2LTA-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 0.3 V tolerance window centers on a nominal 5.45 V regulation point, supporting precise voltage referencing in analog circuits without external trimming.
Does HZ6A2LTA-E meet RoHS requirements?
Yes, the HZ6A2LTA-E complies with the EU RoHS Directive and contains no restricted substances above allowable thresholds. Renesas Electronics confirms environmental compliance for this part in accordance with applicable regulations, including lead-free termination and halogen-free packaging materials.
Can HZ6A2LTA-E replace standard HZ-series Zeners directly?
No - the HZ6A2LTA-E belongs to the enhanced HZ-L series with significantly lower noise (≈1/3–1/10 of standard HZ) and tighter voltage tolerance. While pin-compatible in DO-35, its improved specs require verification of system-level noise floor and thermal stability before drop-in replacement in legacy HZ designs.
What is the maximum reverse current specification for HZ6A2LTA-E?
The HZ6A2LTA-E specifies a maximum reverse current (IR) of 1 μA at VR = 2.0 V and Ta = 25°C. This ultra-low leakage supports high-impedance bias networks and battery-operated applications where standby current must remain below 1 μA.
Is HZ6A2LTA-E qualified for automotive applications?
No - the HZ6A2LTA-E is rated as a "Standard" quality grade device per Renesas classification and is intended for computers, office equipment, communications gear, and industrial robots. It is not AEC-Q200 qualified and lacks the extended temperature screening or failure-rate validation required for automotive use.
HZ6A2LTA-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:
- -
HZ6A2LTA-E FAQ
1.How can I place an order for HZ6A2LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A2LTA-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 HZ6A2LTA-E reliable?
The price and inventory of HZ6A2LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A2LTA-E is usually 5 days.
3.What payment methods are accepted for HZ6A2LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A2LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6A2LTA-E?
HZ6A2LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A2LTA-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 HZ6A2LTA-E?
For technical support, including HZ6A2LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A2LTA-E requirements.
6.How does Aetrix verify that HZ6A2LTA-E is sourced from the original manufacturer or authorized distributors?
All HZ6A2LTA-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 HZ6A2LTA-E meets industry standards.
7.What is the process for return or replacement of HZ6A2LTA-E?
All HZ6A2LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A2LTA-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 HZ6A2LTA-E part is unused and in its original packaging.
Return procedure for HZ6A2LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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