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Renesas HZ4C3J-E
- Part No.:
- HZ4C3J-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ4C3J-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:10,705
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Product details
Overview
HZ4C3J-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 6.4 V (min 6.1 V, max 6.4 V), dynamic resistance of 60 Ω at 0.5 mA test current, 400 mW power dissipation, and DO-35 glass package with navy blue cathode band. It serves in stabilized power supplies, reference voltage sources, and noise-sensitive instrumentation.
For engineers reviewing the HZ4C3J-E datasheet, HZ4C3J-E pinout, HZ4C3J-E application, or HZ4C3J-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 behavior, junction temperature limit (175°C), and DO-35 mechanical compatibility in space-constrained PCB layouts.
Technical Context
The HZ4C3J-E operates as a two-terminal shunt regulator with DC-tested zener characteristics, optimized for low dynamic impedance (60 Ω) and minimal voltage drift over temperature. Its silicon planar construction ensures stable breakdown behavior and reduced flicker noise versus diffused-junction alternatives.
Designed for operation at IZ = 0.5 mA, it delivers tight VZ control (6.1–6.4 V) with reverse leakage ≤1 μA at VR = 2.0 V and maintains thermal stability across −55°C to +175°C storage range and 175°C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.1 V min to 6.4 V max at IZ = 0.5 mA - defines precise regulation point for low-drift references |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output impedance under varying load conditions |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact through-hole designs without forced cooling |
| Reverse Leakage Current (IR) | ≤1 μA at VR = 2.0 V - guarantees negligible standby current in battery-powered or high-impedance bias networks |
| Junction Temperature (Tj) | 175°C maximum - enables reliable operation in industrial and automotive under-hood environments |
| Package | DO-35 glass axial - provides hermetic sealing, thermal stability, and compatibility with legacy through-hole assembly processes |
Pinout & Package
DO-35 glass package with axial leads: cathode identified by navy blue band; anode and cathode terminals are non-polarized in function but polarity-critical for correct biasing. Body color is orange.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; must be held at higher potential than anode during conduction |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Diode noise level ≈1/3–1/10 that of standard HZ series - critical for audio preamps and sensor front-ends |
| Zener voltage tolerance | ±0.3 V at 6.25 V nominal - enables tighter system-level voltage margining without trimming |
| Low zener impedance | 60 Ω dynamic resistance - minimizes output voltage variation under load transients |
| Wide operating temperature range | −55°C to +175°C storage, 175°C max junction - supports deployment in extended-temperature industrial systems |
Applications
| High-Precision Reference Source | Low-Noise Audio Biasing |
|---|---|
Use Scenario: Generating stable 6.25 V reference for 16-bit ADCs and DACs in data acquisition systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-drift, low-noise excitation for converter analog sections. Use Value: 60 Ω dynamic resistance and <1 μA leakage ensure reference accuracy remains within ±0.05% over temperature and time. |
Use Scenario: Biasing JFET input stages in microphone preamplifiers where supply ripple and device noise directly impact SNR. IC Role / Device Role / Timing Role: Low-noise zener element establishing clean DC operating point for ultra-low-noise amplification. Use Value: Noise reduction to 1/3–1/10 of standard HZ series preserves signal integrity in sub-100 nV/√Hz analog chains. |
| Stabilized Power Supply Feedback | Temperature-Compensated Sensor Excitation |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters requiring accurate 6.25 V threshold for regulation loop stability. IC Role / Device Role / Timing Role: Precision shunt element in optocoupler feedback network defining output voltage setpoint. Use Value: Tight VZ tolerance (±0.3 V) and low rd reduce output regulation error to <±1.5% across line/load/temperature. |
Use Scenario: Providing stable excitation voltage to RTD or thermistor bridges in industrial temperature transmitters. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage source compensating for sensor self-heating and ambient drift. Use Value: 175°C junction rating and −55°C to +175°C storage range support operation in harsh process environments without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | VZ = 6.2 V ±5%, rd = 7 Ω typical (at 20 mA), Pd = 1 W, DO-41 package | Higher test current (20 mA vs. 0.5 mA), larger package, higher power - suited for higher-current regulation, not low-noise biasing | Select only when higher power handling and looser VZ tolerance are acceptable; not suitable for low-IZ or noise-critical roles. |
| BZX55C6V2 | VZ = 6.2 V ±5%, rd = 100 Ω max (at 5 mA), Pd = 500 mW, DO-35 package | Higher dynamic resistance, wider VZ tolerance, no low-noise specification - general-purpose use only | Acceptable for cost-sensitive, non-critical regulation; avoid where noise or tight VZ control is required. |
Compared with 1N4735A and BZX55C6V2, the HZ4C3J-E offers superior low-noise performance and tighter VZ tolerance at microampere-level operating currents, making it uniquely suitable for precision analog reference and low-power biasing - not a drop-in replacement due to differing test conditions and noise specifications.
Availability
HZ4C3J-E is available at Aetrix Electronics and suitable for stabilized power supply design, precision voltage reference generation, and low-noise analog biasing requiring stable component supply across industrial, test & measurement, and medical instrumentation programs.
Supply support for HZ4C3J-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 Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and timing solutions for industrial, automotive, and infrastructure markets.
The HZ-L Series, including HZ4C3J-E, was developed specifically for low-noise voltage regulation in high-fidelity analog systems and precision instrumentation where conventional Zener diodes introduce unacceptable signal degradation.
FAQ
What is the exact zener voltage range for HZ4C3J-E?
The HZ4C3J-E has a guaranteed zener voltage range of 6.1 V minimum to 6.4 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V span reflects its tight tolerance grade within the HZ-L family and is confirmed in the Renesas REJ03G0182-0300 datasheet on page 2.
Is HZ4C3J-E suitable for low-noise applications?
Yes, the HZ4C3J-E is explicitly designed for low-noise applications: its noise level is approximately 1/3 to 1/10 that of the standard HZ series, as stated in the "Features" section of the official Renesas datasheet. This makes HZ4C3J-E appropriate for audio preamplifier biasing, sensor excitation, and precision reference circuits where noise floor matters.
What package type does HZ4C3J-E use, and how is polarity marked?
HZ4C3J-E uses the DO-35 glass axial package with navy blue cathode band marking, per Renesas package documentation. The banded end is the cathode; the opposite lead is the anode. Body color is orange, and the JEITA code is GRZZ0002ZB-A - all verified in the "Package Dimensions" section on page 5 of REJ03G0182-0300.
What is the maximum power dissipation and thermal limit for HZ4C3J-E?
HZ4C3J-E has a maximum power dissipation of 400 mW at Ta = 25°C and a maximum junction temperature of 175°C. Its thermal derating curve (Figure 3, page 4) shows linear reduction to zero dissipation at ~150°C ambient, enabling robust operation in high-temperature industrial enclosures when properly mounted.
Does HZ4C3J-E have a specified temperature coefficient?
Yes - while the datasheet does not list a single γZ value for HZ4C3J-E, Figure 2 (page 4) plots temperature coefficient versus zener voltage for the HZ-L Series, showing γZ ≈ −0.02 %/°C near 6.25 V. This low, predictable drift supports stable reference performance across −55°C to +125°C operating ranges without external compensation.
HZ4C3J-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
HZ4C3J-E FAQ
1.How can I place an order for HZ4C3J-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ4C3J-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 HZ4C3J-E reliable?
The price and inventory of HZ4C3J-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ4C3J-E is usually 5 days.
3.What payment methods are accepted for HZ4C3J-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ4C3J-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ4C3J-E?
HZ4C3J-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ4C3J-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 HZ4C3J-E?
For technical support, including HZ4C3J-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ4C3J-E requirements.
6.How does Aetrix verify that HZ4C3J-E is sourced from the original manufacturer or authorized distributors?
All HZ4C3J-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 HZ4C3J-E meets industry standards.
7.What is the process for return or replacement of HZ4C3J-E?
All HZ4C3J-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ4C3J-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 HZ4C3J-E part is unused and in its original packaging.
Return procedure for HZ4C3J-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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