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Renesas HZ6A2L-JRE
- Part No.:
- HZ6A2L-JRE
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6A2L-JRE.pdf
- Description:
- DIODE ZENER
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Inventory:56,000
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Product details
Overview
HZ6A2L-JRE from Renesas is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, with a nominal zener voltage of 5.45 V (min 5.3 V, max 5.6 V), 400 mW power dissipation, 80 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package. It serves in low-drift bandgap reference buffers and noise-sensitive instrumentation power rails.
For engineers reviewing the HZ6A2L-JRE datasheet, HZ6A2L-JRE pinout, HZ6A2L-JRE application, or HZ6A2L-JRE equivalent, key selection criteria include zener voltage tolerance (±3.5% at 5.45 V), temperature coefficient (−0.04 %/°C typical), low leakage (<1 μA at 2.0 V), and suitability for low-noise DC biasing in op-amp references and sensor signal conditioning.
Technical Context
The HZ6A2L-JRE employs a silicon planar junction structure with controlled doping to achieve reduced thermal noise and stable zener breakdown characteristics. Its low dynamic resistance (80 Ω) and tight voltage tolerance stem from process-trimmed diffusion and post-fabrication screening across the HZ-L series.
This device operates exclusively in reverse-bias zener mode with DC test conditions specified; it is not rated for surge or transient suppression. The −0.04 %/°C temperature coefficient enables predictable drift compensation in multi-stage reference designs where adjacent components share thermal coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.3–5.6 V at IZ = 0.5 mA - defines stable regulation point for low-power analog references |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output impedance variation under load changes |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - prevents parasitic current paths in high-impedance feedback networks |
| Temp. Coefficient (γZ) | −0.04 %/°C typical - enables predictable voltage drift for calibration-critical applications |
| Junction Temp. (Tj) | 175°C max - allows reliable operation in industrial ambient environments up to 125°C with derating |
Pinout & Package
Package: DO-35 glass axial lead package (JEITA code GRZZ0002ZB-A), orange body with navy blue cathode band. Total mass: 0.13 g. Dimensions: φD = 2.0 mm, E = 4.2 mm, L = 26.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown anode connection | Connected to regulated positive rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Zener breakdown cathode connection | Typically tied to ground or common reference node; establishes reverse-bias condition |
Key Features
| Feature | Design Value |
|---|---|
| Noise level | ≈1/3–1/10 lower than standard HZ series - directly improves SNR in audio preamps and ADC reference stages |
| Zener impedance | 80 Ω max at 0.5 mA - maintains regulation accuracy under varying load currents in discrete regulator topologies |
| Voltage range coverage | 5.2–38 V across HZ-L family - enables single-supplier sourcing for multi-rail systems requiring matched tempcos |
| Leakage performance | <1 μA at 2.0 V reverse - preserves bias stability in FET-input op-amp circuits and high-Z sensor interfaces |
Applications
| High-Precision Reference Buffer | Low-Noise Instrumentation Amplifier Bias |
|---|---|
Use Scenario: Stabilizing the reference input of a 24-bit delta-sigma ADC in a portable multimeter design operating from a single 9 V battery. IC Role / Device Role / Timing Role: Zener diode providing low-drift, low-noise voltage reference for ADC internal reference buffer stage. Use Value: 80 Ω dynamic resistance and −0.04 %/°C tempco minimize code-width variation across 0–50°C ambient range. | Use Scenario: Setting bias points for JFET-input op-amps in a medical EEG front-end amplifier requiring sub-μV input-referred noise. IC Role / Device Role / Timing Role: Low-noise zener diode establishing stable DC operating points for gain-setting resistors and active filter nodes. Use Value: 1/10 noise level vs. legacy HZ series reduces integrated noise contribution below 10 nV/√Hz in 0.1–100 Hz band. |
| Thermocouple Cold-Junction Compensation | Calibration Standard Voltage Source |
Use Scenario: Generating a stable 5.45 V reference for cold-junction compensation circuitry in a Class A thermocouple measurement module. IC Role / Device Role / Timing Role: Precision zener diode acting as primary voltage reference for RTD-based ambient temperature sensing. Use Value: Tight 5.3–5.6 V tolerance and predictable −0.04 %/°C drift enable <±0.1°C system-level accuracy after linearization. | Use Scenario: Serving as traceable voltage source in handheld field calibrators used for verifying 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Primary zener reference element in a portable, battery-operated calibration instrument requiring long-term stability. Use Value: 400 mW power rating allows operation at 0.5 mA with margin for aging-induced voltage shift over 5-year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V1LT1G | Zener voltage 5.1 V ±5%, rd = 60 Ω, Pd = 300 mW, SOT-23 package | Higher voltage tolerance and lower power rating limit use in high-stability reference chains | Select when board space is constrained and ±5% regulation is acceptable |
| 1N5231B | Zener voltage 5.1 V ±5%, rd = 17 Ω, Pd = 500 mW, DO-35 package, higher noise | Lower dynamic impedance but 3× higher noise degrades SNR in audio/sensor paths | Select only for cost-sensitive non-critical biasing where noise is not dominant |
Compared with BZX84-C5V1LT1G and 1N5231B, the HZ6A2L-JRE delivers tighter voltage tolerance (±3.5% vs. ±5%), lower noise (1/10 vs. 1N5231B), and matched DO-35 form factor-making it optimal for metrology-grade analog subsystems where drift and spectral purity are prioritized over raw impedance or cost.
Availability
HZ6A2L-JRE is available at Aetrix Electronics and suitable for high-precision reference buffers, low-noise instrumentation amplifier biasing, and thermocouple cold-junction compensation requiring stable component supply and long-term parametric consistency.
Supply support for HZ6A2L-JRE 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 manufacturer specializing in microcontrollers, analog mixed-signal devices, and power management ICs for industrial, automotive, and infrastructure applications.
The HZ-L Series was designed specifically for low-noise, low-drift voltage reference applications in precision analog signal chains-emphasizing zener voltage stability, minimized thermal noise, and consistent dynamic impedance across temperature.
FAQ
What is the exact zener voltage range for HZ6A2L-JRE at 0.5 mA test current?
The HZ6A2L-JRE has a guaranteed zener voltage range of 5.3 V to 5.6 V when measured at IZ = 0.5 mA and Ta = 25°C. This ±3.5% tolerance reflects factory binning for precision reference use. The nominal value is 5.45 V, and the HZ6A2L-JRE datasheet specifies no deviation beyond these limits under DC test conditions.
Is HZ6A2L-JRE suitable for surface-mount assembly?
No, the HZ6A2L-JRE uses a DO-35 axial glass package with leads intended for through-hole mounting. It is not compatible with reflow or wave soldering processes designed for SMT components. The JEITA package code GRZZ0002ZB-A and Renesas documentation confirm its DO-35 mechanical form factor, and no SMT variant of HZ6A2L-JRE exists in the HZ-L family.
How does the noise performance of HZ6A2L-JRE compare to standard Zener diodes?
The HZ6A2L-JRE exhibits approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners due to optimized planar junction processing and low-leakage design. This reduction is verified in Renesas' characterization data and directly benefits low-frequency applications such as sensor excitation and high-resolution ADC references where broadband noise impacts effective resolution. The HZ6A2L-JRE achieves this without sacrificing voltage stability or power handling.
What is the maximum allowable reverse current before exceeding HZ6A2L-JRE's power rating?
At Ta = 25°C, the HZ6A2L-JRE's 400 mW power dissipation limit corresponds to a maximum reverse current of ≈74 mA when regulating at 5.45 V (P = V × I → I = 400 mW / 5.45 V). However, the datasheet specifies test conditions up to 0.5 mA for parameter characterization, and sustained operation above 10 mA requires thermal derating per Figure 3 in the HZ6A2L-JRE datasheet to maintain Tj ≤ 175°C.
Does HZ6A2L-JRE have a specified zener voltage temperature coefficient?
Yes, the HZ6A2L-JRE has a typical zener voltage temperature coefficient (γZ) of −0.04 %/°C, as shown in Figure 2 of the official Renesas datasheet REJ03G0182-0300. This negative coefficient is consistent across the 5.2–6.4 V subgroup of the HZ-L series and enables predictable drift modeling in reference designs. The HZ6A2L-JRE's coefficient is tighter and more linear than standard Zeners in the same voltage range.
HZ6A2L-JRE 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:
- -
HZ6A2L-JRE FAQ
1.How can I place an order for HZ6A2L-JRE through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6A2L-JRE 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-JRE reliable?
The price and inventory of HZ6A2L-JRE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6A2L-JRE is usually 5 days.
3.What payment methods are accepted for HZ6A2L-JRE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6A2L-JRE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6A2L-JRE?
HZ6A2L-JRE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6A2L-JRE 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-JRE?
For technical support, including HZ6A2L-JRE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6A2L-JRE requirements.
6.How does Aetrix verify that HZ6A2L-JRE is sourced from the original manufacturer or authorized distributors?
All HZ6A2L-JRE 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-JRE meets industry standards.
7.What is the process for return or replacement of HZ6A2L-JRE?
All HZ6A2L-JRE units undergo pre-shipment inspection (PSI). If there is an issue with HZ6A2L-JRE, 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-JRE part is unused and in its original packaging.
Return procedure for HZ6A2L-JRE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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