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Renesas HZ27-2JRE-E
- Part No.:
- HZ27-2JRE-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ27-2JRE-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:16,000
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Product details
Overview
HZ27-2JRE-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 27.2 V to 27.6 V at 0.5 mA test current, 24.0 Ω dynamic impedance, 400 mW power dissipation, and DO-35 glass package - used in reference supplies for ADCs, sensor signal conditioning, and low-drift instrumentation amplifiers.
For engineers reviewing the HZ27-2JRE-E datasheet, HZ27-2JRE-E pinout, HZ27-2JRE-E application, or HZ27-2JRE-E equivalent, key selection criteria include verified zener voltage tolerance (±0.4 V), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.04 %/°C typical), and DO-35 mechanical compatibility with through-hole PCB layouts.
Technical Context
This device operates as a two-terminal shunt regulator with DC-tested zener characteristics, specified at IZ = 0.5 mA and Ta = 25°C. Its low dynamic resistance (24.0 Ω) and tight VZ tolerance support stable biasing in noise-sensitive analog front-ends.
The HZ27-2JRE-E exhibits a negative temperature coefficient of −0.04 %/°C, confirmed across its operating range, and maintains junction temperature up to 175°C with storage capability from −55°C to +175°C - enabling use in industrial-grade power monitoring and calibration circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 27.2 V to 27.6 V at IZ = 0.5 mA - defines precise regulation point for reference design |
| Dynamic Resistance (rd) | 24.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact through-hole designs |
| Reverse Leakage (IR) | 1 μA max at VR = 20.2 V - guarantees low quiescent current in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C maximum - enables reliable operation in thermally constrained enclosures |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - provides predictable VZ drift for temperature-compensated references |
Pinout & Package
DO-35 glass axial package with orange body color and navy-blue cathode band; total mass 0.13 g; lead spacing 26.0 mm; diameter 2.0 mm; length 5.0–20.0 mm depending on lead trim.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; polarity must be observed for correct shunt regulation |
| 2 (Non-banded End) | Anode | Connected to ground or common reference; completes current path during reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Low Noise Performance | Diode noise level ≈ 1/3–1/10 that of standard HZ series - critical for audio preamps and precision data acquisition |
| Tight Zener Voltage Tolerance | ±0.4 V over 27.2–27.6 V range - reduces need for external trimming in factory-calibrated instruments |
| Low Dynamic Impedance | 24.0 Ω max - minimizes AC ripple coupling into reference rails under varying load conditions |
| High Thermal Stability | −0.04 %/°C tempco and 175°C Tj rating - maintains accuracy across industrial ambient ranges (−40°C to +85°C) |
| Robust Package | DO-35 glass envelope with 0.13 g mass - withstands wave-solder thermal profiles and supports manual rework |
Applications
| High-Precision Reference Supply | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 27.4 V reference for 24-bit delta-sigma ADCs in metrology-grade digital multimeters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing absolute scaling for analog-to-digital conversion. Use Value: Low 24.0 Ω dynamic resistance and ±0.4 V VZ tolerance ensure <0.01% full-scale error contribution from reference drift. |
Use Scenario: Biasing bridge-based pressure sensors in automotive manifold absolute pressure (MAP) modules. IC Role / Device Role / Timing Role: Stable excitation voltage source for Wheatstone bridge arms. Use Value: −0.04 %/°C temperature coefficient minimizes offset drift across −40°C to +125°C engine bay environments. |
| Low-Noise Instrumentation Amplifier | Calibration Standard Generator |
Use Scenario: Generating clean bias for op-amp input stages in medical ECG front-ends requiring sub-μV noise floors. IC Role / Device Role / Timing Role: Low-noise zener element in discrete reference buffer circuitry. Use Value: Diode noise reduced to 1/10 of legacy HZ series directly lowers system input-referred noise floor. |
Use Scenario: Serving as traceable voltage standard in handheld calibrators used for field verification of process transmitters. IC Role / Device Role / Timing Role: Primary voltage reference in portable, battery-powered calibration hardware. Use Value: 400 mW power rating allows operation from unregulated 30 V supply while maintaining long-term stability under thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5260BLT1G | Zener voltage 27 V ±5%, rd = 35 Ω, SOT-23 package, 200 mW Pd | Surface-mount only; higher dynamic impedance; lower power handling | Preferred for space-constrained PCBs where thermal margin permits reduced Pd |
| Vishay BZX55-C27 | Zener voltage 27 V ±5%, rd = 35 Ω, DO-35 package, 500 mW Pd, no low-noise specification | Higher noise floor; wider VZ tolerance; higher power but less precision | Acceptable for non-critical regulation where cost is prioritized over noise and tempco |
Compared with HZ27-2JRE-E, the MMBZ5260BLT1G offers SMT compatibility but sacrifices 30% higher dynamic impedance and 50% lower power rating, while the BZX55-C27 matches DO-35 form factor and higher Pd but lacks documented low-noise performance and tighter tempco control.
Availability
HZ27-2JRE-E is available at Aetrix Electronics and suitable for high-precision reference supplies, sensor excitation circuits, and calibration equipment requiring stable component supply with guaranteed long-term availability and traceable lot documentation.
Supply support for HZ27-2JRE-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 IoT applications.
The HZ-L Series was developed specifically for low-noise, high-stability voltage reference applications in test & measurement, medical instrumentation, and precision industrial sensing systems.
FAQ
What is the exact zener voltage range for HZ27-2JRE-E?
The HZ27-2JRE-E has a guaranteed zener voltage range of 27.2 V to 27.6 V when tested at IZ = 0.5 mA and Ta = 25°C. This 0.4 V window reflects tight binning for precision applications and is confirmed in Renesas document REJ03G0182-0300 Rev.3.00. The HZ27-2JRE-E does not exhibit wider tolerance under different test currents or temperatures unless explicitly characterized in the datasheet.
Is HZ27-2JRE-E suitable for surface-mount assembly?
No, the HZ27-2JRE-E uses a DO-35 glass axial package with 26.0 mm lead spacing and is designed exclusively for through-hole mounting. It cannot be placed using standard SMT pick-and-place equipment. For surface-mount alternatives, consider the ON Semiconductor MMBZ5260BLT1G - though it lacks the low-noise performance and tight tempco of the HZ27-2JRE-E.
What is the maximum reverse leakage current for HZ27-2JRE-E?
The HZ27-2JRE-E specifies a maximum reverse leakage current (IR) of 1 μA at VR = 20.2 V and Ta = 25°C. This low leakage supports high-impedance bias networks without introducing measurable error - a key requirement in precision reference designs where the HZ27-2JRE-E is commonly deployed.
Does HZ27-2JRE-E have a documented temperature coefficient?
Yes, the HZ27-2JRE-E has a documented zener voltage temperature coefficient (γZ) of −0.04 %/°C, as shown in Figure 2 of the Renesas datasheet REJ03G0182-0300. This value is typical and applies across the 25°C to 75°C range, enabling accurate prediction of VZ drift in thermal-aware reference designs using the HZ27-2JRE-E.
Can HZ27-2JRE-E replace older HZ27 series diodes directly?
The HZ27-2JRE-E is part of the upgraded HZ-L series and is not a direct drop-in replacement for legacy HZ27 variants due to its significantly lower noise (1/3–1/10), tighter VZ tolerance (±0.4 V vs. ±5%), and improved tempco. While physically compatible in DO-35 sockets, circuit-level validation is required to confirm benefit realization - especially in noise-critical paths where the HZ27-2JRE-E delivers measurable improvement.
HZ27-2JRE-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:
- -
HZ27-2JRE-E FAQ
1.How can I place an order for HZ27-2JRE-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ27-2JRE-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 HZ27-2JRE-E reliable?
The price and inventory of HZ27-2JRE-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ27-2JRE-E is usually 5 days.
3.What payment methods are accepted for HZ27-2JRE-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ27-2JRE-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ27-2JRE-E?
HZ27-2JRE-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ27-2JRE-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 HZ27-2JRE-E?
For technical support, including HZ27-2JRE-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ27-2JRE-E requirements.
6.How does Aetrix verify that HZ27-2JRE-E is sourced from the original manufacturer or authorized distributors?
All HZ27-2JRE-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 HZ27-2JRE-E meets industry standards.
7.What is the process for return or replacement of HZ27-2JRE-E?
All HZ27-2JRE-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ27-2JRE-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 HZ27-2JRE-E part is unused and in its original packaging.
Return procedure for HZ27-2JRE-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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