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Renesas HZ5HC3-E
- Part No.:
- HZ5HC3-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ5HC3-E.pdf
- Description:
- DIODE ZENER FOR STABIL POWER
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
HZ5HC3-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 5.4 V to 5.7 V, 400 mW power dissipation, and dynamic resistance as low as 60 Ω at 0.5 mA test current - deployed in reference voltage sources and sensor signal conditioning stages.
For engineers reviewing the HZ5HC3-E datasheet, HZ5HC3-E pinout, HZ5HC3-E application, or HZ5HC3-E equivalent, this device is selected for stable low-noise biasing where zener impedance, temperature coefficient (−0.02 %/°C typical), and leakage current (<1 μA at VR = 2.0 V) are critical selection criteria.
Technical Context
The HZ5HC3-E operates as a two-terminal voltage reference with DC-tested zener breakdown, optimized for low-noise performance via reduced junction noise - approximately 1/3–1/10 lower than standard HZ-series diodes. Its planar construction ensures consistent parameter distribution across the HZ-L family.
It exhibits a negative temperature coefficient near 5.6 V (−0.02 %/°C), low reverse leakage (<1 μA), and zener impedance of 60 Ω at IZ = 0.5 mA - enabling high-accuracy regulation in low-power analog front-ends without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.4 V min / 5.7 V max at IZ = 0.5 mA - defines tight regulation window for 5.6 V nominal reference design |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | <1 μA max at VR = 2.0 V - preserves accuracy in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C max - enables reliable operation in industrial ambient environments up to 125°C with derating |
| Temperature Coefficient (γZ) | −0.02 %/°C typical at ~5.6 V - minimizes drift in precision voltage references over temperature |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, 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 breakdown terminal | Connected to higher potential node; reverse-biased operation requires cathode at positive potential relative to anode |
| 2 (Anode) | Reference ground terminal | Serves as circuit common; establishes stable reference point for feedback or biasing networks |
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 |
| Stable low-impedance regulation | rd = 60 Ω max at 0.5 mA - reduces sensitivity to supply/load variations in active filter biasing |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2 V to 38 V - allows standardized sourcing across multiple reference voltage tiers |
| High thermal reliability | Tj = 175°C and Tstg = −55°C to +175°C - supports deployment in automotive under-hood and industrial control modules |
Applications
| Instrumentation Reference | ADC/DAC Biasing |
|---|---|
Use Scenario: High-resolution digital multimeter front-end requiring sub-0.1% voltage reference stability over temperature. IC Role / Device Role / Timing Role: Primary 5.6 V reference source for 24-bit sigma-delta ADC input stage. Use Value: Low dynamic resistance (60 Ω) and low temperature coefficient (−0.02 %/°C) minimize gain error and offset drift. |
Use Scenario: Precision DAC output buffer bias network in medical imaging signal chain. IC Role / Device Role / Timing Role: Low-noise zener providing clean bias for op-amp input common-mode voltage. Use Value: Reduced junction noise improves effective number of bits (ENOB) by ≥0.5 bits versus standard HZ diodes. |
| Sensor Signal Conditioning | Industrial Power Monitor |
Use Scenario: Bridge sensor excitation in strain-gauge-based load cell interface. IC Role / Device Role / Timing Role: Stable excitation voltage reference for ratiometric measurement architecture. Use Value: Tight VZ tolerance (±0.3 V) and low leakage (<1 μA) prevent zero-point drift in microvolt-level outputs. |
Use Scenario: Input voltage scaling network in DIN-rail mounted power quality analyzer. IC Role / Device Role / Timing Role: Zener-clamped divider reference for isolated ADC input protection. Use Value: 400 mW Pd rating enables robust transient suppression without derating at 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5232B (ON Semiconductor) | VZ = 5.1 V ±5%, rd = 17 Ω, Pd = 500 mW, noise not specified | Higher power rating but no documented low-noise optimization; wider VZ tolerance | Select when absolute minimum cost and higher power margin outweigh low-noise requirement |
| BZX55-C5V6 (Vishay) | VZ = 5.6 V ±5%, rd = 40 Ω, Pd = 500 mW, noise performance unspecified | Lower dynamic resistance but lacks published noise reduction data; broader parametric spread | Prefer for general-purpose regulation where noise is secondary to impedance and availability |
Compared with the HZ5HC3-E, the 1N5232B offers higher power margin but no verified low-noise advantage, while the BZX55-C5V6 delivers lower rd yet lacks documented noise reduction - making HZ5HC3-E uniquely suited for SNR-critical analog references.
Availability
HZ5HC3-E is available at Aetrix Electronics and suitable for instrumentation reference, ADC/DAC biasing, and sensor signal conditioning requiring stable component supply with traceable lot history and long-term lifecycle support.
Supply support for HZ5HC3-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 for industrial, automotive, and infrastructure applications.
The HZ-L Series is part of Renesas' precision analog portfolio, designed specifically for low-noise voltage reference applications where zener impedance, temperature stability, and junction noise define system-level accuracy.
FAQ
What is the exact zener voltage range for HZ5HC3-E?
The HZ5HC3-E has a guaranteed zener voltage range of 5.4 V minimum to 5.7 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V span reflects tight binning within the HZ-L family's 5.2–38 V range and supports precision 5.6 V reference designs without post-calibration trimming.
Does HZ5HC3-E have a documented low-noise specification?
Yes - the HZ5HC3-E datasheet explicitly states its noise level is approximately 1/3 to 1/10 lower than standard HZ-series Zener diodes. This is achieved through optimized planar junction design and process control, making it suitable for high-SNR applications like precision ADC references and sensor excitation.
What is the maximum reverse leakage current for HZ5HC3-E?
The HZ5HC3-E specifies a maximum reverse leakage current (IR) of 1 μA at VR = 2.0 V and Ta = 25°C. This low leakage ensures minimal error in high-impedance bias networks and preserves accuracy in battery-powered or ultra-low-power analog circuits.
Is HZ5HC3-E compatible with DO-35 socket footprints?
Yes - the HZ5HC3-E uses the standard DO-35 glass axial package (JEITA code GRZZ0002ZB-A) with 2.0 mm diameter and 26.0 mm length. Its cathode band position and lead spacing match industry-standard DO-35 sockets and automated placement equipment.
What is the zener impedance and how is it measured for HZ5HC3-E?
The HZ5HC3-E has a maximum dynamic resistance (zener impedance) of 60 Ω, measured at IZ = 0.5 mA using DC test conditions. This value reflects small-signal AC impedance around the operating point and directly impacts regulation stability under varying load currents in reference circuits.
HZ5HC3-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:
- -
HZ5HC3-E FAQ
1.How can I place an order for HZ5HC3-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ5HC3-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 HZ5HC3-E reliable?
The price and inventory of HZ5HC3-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ5HC3-E is usually 5 days.
3.What payment methods are accepted for HZ5HC3-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ5HC3-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ5HC3-E?
HZ5HC3-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ5HC3-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 HZ5HC3-E?
For technical support, including HZ5HC3-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ5HC3-E requirements.
6.How does Aetrix verify that HZ5HC3-E is sourced from the original manufacturer or authorized distributors?
All HZ5HC3-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 HZ5HC3-E meets industry standards.
7.What is the process for return or replacement of HZ5HC3-E?
All HZ5HC3-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ5HC3-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 HZ5HC3-E part is unused and in its original packaging.
Return procedure for HZ5HC3-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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