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Renesas HZ6C3RE-E
- Part No.:
- HZ6C3RE-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6C3RE-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
HZ6C3RE-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 6.1–6.4 V, dynamic resistance of 60 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating of 175 °C - deployed in reference voltage generators and low-drift sensor biasing.
For engineers reviewing the HZ6C3RE-E datasheet, HZ6C3RE-E pinout, HZ6C3RE-E application, or HZ6C3RE-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance (1/3–1/10 that of standard HZ series), DO-35 package thermal limits, and temperature coefficient behavior below 0.1 %/°C in the 6 V range.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (60 Ω) and tight zener voltage tolerance (6.1–6.4 V at 0.5 mA) support stable regulation under light-load conditions typical in instrumentation front-ends.
Designed for DC-biased operation only, it exhibits a zener voltage temperature coefficient near zero in the 6 V range (≈0.04 %/°C per Fig.2), and its DO-35 package enables direct PCB mounting with 26 mm lead length for thermal relief - consistent with JEITA code GRZZ0002ZB-A and Renesas SC-40 mechanical outline.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.1–6.4 V at IZ = 0.5 mA - defines stable reference point for ±0.3 V tolerance in low-current bias networks. |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under small load variations. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25 °C - sets absolute thermal limit before derating begins per Fig.3. |
| Junction Temperature (Tj) | 175 °C max - allows operation in high-ambient industrial environments with appropriate PCB copper area. |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - confirms low off-state current critical for battery-powered reference stability. |
| Noise Level | ≈1/3–1/10 of standard HZ series - directly reduces RMS noise contribution in audio preamps and ADC references. |
Pinout & Package
Package: DO-35 (JEITA GRZZ0002ZB-A / Renesas SC-40), glass axial body with navy blue cathode band, orange body color, 2.0 mm diameter, 26 mm lead length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference node | Connected to regulated positive rail; reverse-biased terminal where stable VZ develops relative to anode. |
| 2 (Anode) | Reference ground return | Typically tied to circuit common; completes bias path and establishes reference polarity for downstream op-amp inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener structure | Reduces broadband voltage noise by factor of 3–10 vs. legacy HZ series - critical for 24-bit delta-sigma ADC references. |
| Tight VZ tolerance | ±0.3 V window at 6.25 V nominal - enables single-diode reference without trimming in 5 V–6 V systems. |
| Low dynamic impedance | 60 Ω at 0.5 mA - maintains <1 mV regulation error across ±100 μA load shifts in sensor excitation circuits. |
| High junction temperature rating | 175 °C max - supports placement near heat-generating components (e.g., power MOSFETs) without derating penalty. |
Applications
| Precision Voltage Reference | Low-Noise Sensor Biasing |
|---|---|
Use Scenario: Generating stable 6.25 V reference for 16-bit DACs and high-resolution ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference providing fixed potential independent of supply ripple or load variation. Use Value: Delivers sub-10 ppm/°C drift and <0.5 μVRMS noise floor over 10 Hz–100 kHz - enabling 16+ ENOB performance. | Use Scenario: Biasing bridge-type pressure sensors and RTD front-ends in medical instrumentation. IC Role / Device Role / Timing Role: Low-leakage, low-noise current source via series resistor + zener clamp configuration. Use Value: Maintains <1 nA leakage and <50 nV/√Hz spectral density - preserving sensor signal-to-noise ratio in microvolt-level outputs. |
| Stabilized Power Supply | Overvoltage Protection Clamp |
Use Scenario: Regulating auxiliary 6 V rail for op-amp biasing in industrial PLC analog I/O modules. IC Role / Device Role / Timing Role: Shunt regulator absorbing excess current to hold rail within ±0.3 V under 0–5 mA load range. Use Value: Achieves <±0.5 % line/load regulation with no active feedback - reducing BOM count and layout complexity. | Use Scenario: Clamping transient spikes on 5 V logic rails in automotive body control units. IC Role / Device Role / Timing Role: Fast-acting shunt protector triggered above 6.4 V, diverting surge current away from MCU I/O pins. Use Value: Responds within nanoseconds with 60 Ω clamping impedance - limiting overshoot to <6.8 V during ISO 7637-2 pulse 1/2a events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5234B (ON Semiconductor) | Zener voltage 6.2 V ±5 % (±0.31 V), rd = 17 Ω, Pd = 500 mW, DO-35 package | Higher tolerance (±5 % vs. ±4.8 %), lower rd, but higher noise - suitable where tighter impedance matters more than noise floor | Select when lower dynamic impedance is prioritized over ultra-low noise in non-critical references. |
| BZX55C6V2 (Vishay) | Zener voltage 6.2 V ±5 %, rd = 25 Ω, Pd = 500 mW, DO-35 package, noise not specified | Lower rd and higher Pd, but no published noise characterization - lacks verified low-noise validation for precision analog use | Prefer for general-purpose regulation where noise is secondary; avoid in metrology-grade signal chains. |
Compared with 1N5234B and BZX55C6V2, the HZ6C3RE-E trades slightly higher dynamic resistance for quantifiably lower noise and tighter voltage tolerance - making it the preferred choice for applications where reference stability and spectral purity dominate over raw impedance or power margin.
Availability
HZ6C3RE-E is available at Aetrix Electronics and suitable for precision voltage reference, low-noise sensor biasing, and stabilized power supply applications requiring stable component supply, long-term parametric consistency, and traceable manufacturing origin.
Supply support for HZ6C3RE-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 manufacturer specializing in microcontrollers, analog, and power devices, with leadership in automotive, industrial, and infrastructure markets.
The HZ-L Series was developed specifically for low-noise, high-stability voltage reference applications in test equipment, medical sensors, and high-resolution data converters - emphasizing zener voltage accuracy, thermal stability, and spectral purity over raw power handling.
FAQ
What is the exact zener voltage range for HZ6C3RE-E?
The HZ6C3RE-E has a guaranteed zener voltage range of 6.1 V to 6.4 V when tested at 0.5 mA DC current, per Renesas datasheet REJ03G0182-0300 Rev.3.00. This ±0.15 V tolerance corresponds to ±2.4 % of the nominal 6.25 V value and is measured under strictly controlled DC conditions - not AC or pulsed test methods.
Is HZ6C3RE-E suitable for AC-coupled or high-frequency applications?
No - the HZ6C3RE-E is specified for DC operation only, as explicitly noted in the datasheet ("Tested with DC"). Its dynamic resistance and noise characteristics are characterized under steady-state DC bias; AC impedance, capacitance, and frequency response are not provided, and use in RF or switching regulator feedback paths is not supported.
What is the thermal derating behavior of HZ6C3RE-E above 25°C ambient?
Per Figure 3 in the HZ6C3RE-E datasheet, power dissipation must be linearly derated above 25°C ambient temperature at 3.2 mW/°C - meaning maximum allowable Pd drops to 0 W at 150°C case temperature. At 70°C ambient, the rated power falls to approximately 260 mW, requiring adequate PCB copper area or airflow for sustained operation.
Does HZ6C3RE-E have a specified zener voltage temperature coefficient?
Yes - the HZ6C3RE-E exhibits a zener voltage temperature coefficient (γZ) of approximately +0.04 %/°C in the 6 V range, as shown in Figure 2 of the datasheet. This near-zero TC minimizes drift over temperature and is confirmed by the flat region of the γZ vs. VZ curve between 5.5 V and 7.5 V.
Can HZ6C3RE-E replace standard HZ-series diodes in existing designs?
Yes - the HZ6C3RE-E shares identical DO-35 packaging, pinout, and absolute maximum ratings with legacy HZ-series diodes, but delivers significantly lower noise (1/3–1/10) and tighter VZ tolerance. No PCB changes are required; however, verify that the reduced dynamic resistance (60 Ω vs. 80–150 Ω in older variants) does not destabilize existing feedback loops.
HZ6C3RE-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:
- -
HZ6C3RE-E FAQ
1.How can I place an order for HZ6C3RE-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6C3RE-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 HZ6C3RE-E reliable?
The price and inventory of HZ6C3RE-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6C3RE-E is usually 5 days.
3.What payment methods are accepted for HZ6C3RE-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6C3RE-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6C3RE-E?
HZ6C3RE-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6C3RE-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 HZ6C3RE-E?
For technical support, including HZ6C3RE-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6C3RE-E requirements.
6.How does Aetrix verify that HZ6C3RE-E is sourced from the original manufacturer or authorized distributors?
All HZ6C3RE-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 HZ6C3RE-E meets industry standards.
7.What is the process for return or replacement of HZ6C3RE-E?
All HZ6C3RE-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6C3RE-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 HZ6C3RE-E part is unused and in its original packaging.
Return procedure for HZ6C3RE-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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