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Renesas HZ4C3JTA-E
- Part No.:
- HZ4C3JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ4C3JTA-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZ4C3JTA-E from Renesas is a silicon planar Zener diode optimized 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), 400 mW power dissipation, 60 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package with orange body and navy-blue cathode band. It serves in stabilized reference supplies for instrumentation amplifiers and sensor signal conditioning.
For engineers reviewing the HZ4C3JTA-E datasheet, HZ4C3JTA-E pinout, HZ4C3JTA-E application, or HZ4C3JTA-E equivalent, key selection criteria include its low-noise performance (1/3–1/10 that of standard HZ series), tight zener voltage tolerance, temperature coefficient behavior near zero crossing (~0.02 %/°C at 6.4 V), and suitability for low-current (<1 mA) precision biasing where leakage and impedance stability are critical.
Technical Context
The HZ4C3JTA-E operates as a two-terminal shunt voltage reference using silicon planar junction technology, with zener breakdown mechanism dominant in its 6.4 V range. Its low noise stems from optimized doping profile and passivation, and it exhibits a near-zero temperature coefficient point around 6.2–6.5 V - confirmed by Figure 2 in REJ03G0182-0300.
Electrical behavior is characterized under DC conditions per datasheet Note 1: reverse current IR ≤ 1 μA at VR = 2.0 V, dynamic resistance rd = 60 Ω measured at IZ = 0.5 mA, and maximum junction temperature of 175 °C enables operation in thermally constrained PCB layouts.
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 stable reference point for low-drift bias networks |
| Power Dissipation (Pd) | 400 mW at Ta = 25 °C - supports continuous operation in compact through-hole designs without forced cooling |
| Dynamic Resistance (rd) | 60 Ω at IZ = 0.5 mA - ensures minimal output voltage variation under small-signal load transients |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - preserves accuracy in high-impedance reference legs and battery-powered sensors |
| Junction Temperature (Tj) | 175 °C maximum - allows reliable function in industrial ambient environments up to 125 °C with derating |
| Temperature Coefficient (γZ) | ≈0.02 %/°C near 6.4 V - minimizes thermal drift in unregulated or lightly compensated circuits |
Pinout & Package
Package: DO-35 glass axial package (RENESAS code GRZZ0002ZB-A, JEITA code SC-40), orange body with navy-blue cathode band; mass ≈ 0.13 g; dimensions L = 26.0 mm, φD = 2.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated positive rail; polarity must be observed to avoid forward conduction and reference collapse |
| 2 (non-banded end) | Anode | Typically grounded or connected to lowest system potential; establishes reference node for feedback loops |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener operation | Noise level ~1/3–1/10 that of standard HZ series - directly improves SNR in audio preamps and ADC reference buffers |
| Tight zener voltage tolerance | ±0.15 V window at 6.4 V - reduces calibration burden in factory-trimmed instrumentation modules |
| Low dynamic impedance | 60 Ω at 0.5 mA - maintains regulation stability even with varying source impedance in discrete regulator topologies |
| Wide operating temperature range | −55 °C to +175 °C storage; 175 °C max junction - supports deployment in automotive engine control and industrial motor drives |
Applications
| Instrumentation Amplifier Biasing | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable DC bias to FET-input op-amp stages in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing common-mode input level for differential front-end amplification. Use Value: Low 60 Ω rd and sub-1 μA leakage prevent gain error and offset drift across temperature and supply variations. | Use Scenario: Supplying excitation voltage to resistive bridge sensors (e.g., strain gauges, pressure transducers) in HVAC controllers. IC Role / Device Role / Timing Role: Precision voltage reference for ratiometric measurement systems where ADC reference and sensor excitation share same source. Use Value: Near-zero γZ at 6.4 V eliminates correlated thermal error between excitation and reference rails. |
| Low-Power Reference Supply | ADC/DAC Voltage Reference |
Use Scenario: Generating 6.4 V reference for ultra-low-power microcontrollers in battery-operated IoT edge nodes. IC Role / Device Role / Timing Role: Standalone shunt regulator feeding internal LDO or bandgap reference circuitry. Use Value: 400 mW Pd and 175 °C Tj allow safe operation at 0.2–0.5 mA quiescent current with no heatsinking required. | Use Scenario: Serving as external reference for 12-bit SAR ADCs in medical diagnostic equipment requiring <0.5 LSB drift over 0–70 °C. IC Role / Device Role / Timing Role: Primary voltage reference determining full-scale conversion accuracy and linearity. Use Value: Confirmed low-noise performance and tight VZ tolerance directly limit integral nonlinearity (INL) and differential nonlinearity (DNL) errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 | Zener voltage 6.2 V ±5 % (6.0–6.4 V); rd = 70 Ω at 5 mA; 300 mW Pd; SOT-23 package | Higher test current (5 mA vs. 0.5 mA) increases power demand; surface-mount only; higher noise than HZ-L series | Prefer when board space is constrained and 5 mA bias is acceptable; not recommended for ultra-low-current or low-noise analog stages |
| 1N4735A | Zener voltage 6.2 V ±5 %; rd = 7 Ω at 41 mA; 1 W Pd; DO-41 package | Requires >10× higher bias current; larger thermal mass; no low-noise specification; wider VZ tolerance | Select only for high-current, non-critical references where cost and availability outweigh noise and precision requirements |
Compared with BZX84-C6V2 and 1N4735A, the HZ4C3JTA-E delivers superior low-noise performance and tighter low-current regulation at 0.5 mA, making it uniquely suitable for precision analog signal chains where bias current budget and voltage stability are simultaneously constrained.
Availability
HZ4C3JTA-E is available at Aetrix Electronics and suitable for instrumentation amplifier biasing, sensor signal conditioning, and low-power reference supply applications requiring stable component supply, long-term obsolescence management, and traceable lot-level compliance documentation.
Supply support for HZ4C3JTA-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 leader delivering microcontrollers, analog power, and connectivity solutions for automotive, industrial, and enterprise systems.
The HZ-L Series is part of Renesas' precision analog portfolio, engineered specifically for low-noise, low-leakage voltage reference applications in high-fidelity measurement and sensor interface circuits.
FAQ
What is the exact zener voltage range specified for HZ4C3JTA-E?
The HZ4C3JTA-E has a guaranteed zener voltage range of 6.1 V minimum to 6.4 V maximum, tested at IZ = 0.5 mA and Ta = 25 °C per REJ03G0182-0300 Rev.3.00. This 0.3 V window reflects tight process control for precision reference use, and the value is confirmed in the "HZ6C3L" row of the Electrical Characteristics table on page 2.
Does HZ4C3JTA-E have a documented temperature coefficient, and what is its value?
Yes, the HZ4C3JTA-E exhibits a temperature coefficient of approximately +0.02 %/°C near its 6.4 V operating point, as shown in Figure 2 ("Temperature Coefficient vs. Zener Voltage") on page 4 of REJ03G0182-0300. This near-zero crossing makes it especially valuable for applications requiring minimal thermal drift without active compensation.
What is the maximum reverse leakage current for HZ4C3JTA-E, and under what condition is it specified?
The maximum reverse leakage current for HZ4C3JTA-E is 1 μA, specified at VR = 2.0 V and Ta = 25 °C (page 2, Electrical Characteristics table). This low leakage supports high-impedance reference networks and extends battery life in always-on sensing nodes where bias current must remain below 1 μA.
Is HZ4C3JTA-E suitable for surface-mount assembly, or is it through-hole only?
HZ4C3JTA-E is a DO-35 glass axial package device with 26.0 mm length and 2.0 mm diameter, designed exclusively for through-hole mounting. It is not compatible with SMT reflow or pick-and-place processes. The package code GRZZ0002ZB-A and JEITA designation SC-40 confirm its axial leaded form factor per page 5 of the datasheet.
How does the noise performance of HZ4C3JTA-E compare to standard Zener diodes?
HZ4C3JTA-E achieves approximately 1/3 to 1/10 the noise level of conventional HZ-series Zeners, as stated in the Features section on page 1 of REJ03G0182-0300. This reduction results from proprietary planar junction processing and passivation, enabling use in high-SNR analog paths such as microphone preamplifiers and precision ADC references where broadband noise must be minimized.
HZ4C3JTA-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:
- -
HZ4C3JTA-E FAQ
1.How can I place an order for HZ4C3JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ4C3JTA-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 HZ4C3JTA-E reliable?
The price and inventory of HZ4C3JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ4C3JTA-E is usually 5 days.
3.What payment methods are accepted for HZ4C3JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ4C3JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ4C3JTA-E?
HZ4C3JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ4C3JTA-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 HZ4C3JTA-E?
For technical support, including HZ4C3JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ4C3JTA-E requirements.
6.How does Aetrix verify that HZ4C3JTA-E is sourced from the original manufacturer or authorized distributors?
All HZ4C3JTA-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 HZ4C3JTA-E meets industry standards.
7.What is the process for return or replacement of HZ4C3JTA-E?
All HZ4C3JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ4C3JTA-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 HZ4C3JTA-E part is unused and in its original packaging.
Return procedure for HZ4C3JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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