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Renesas HZ9B1LRE-E
- Part No.:
- HZ9B1LRE-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ9B1LRE-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
HZ9B1LRE-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 8.3–8.7 V, 400 mW power dissipation, 60 Ω dynamic impedance at 0.5 mA, and DO-35 glass package. It serves in stabilized reference supplies for instrumentation amplifiers and sensor signal conditioning where noise suppression is critical.
For engineers reviewing the HZ9B1LRE-E datasheet, HZ9B1LRE-E pinout, HZ9B1LRE-E application, or HZ9B1LRE-E equivalent, key selection criteria include zener voltage tolerance (±0.4 V), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.02 %/°C typical), and DO-35 mechanical compatibility in space-constrained PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic resistance (60 Ω @ 0.5 mA) and tight zener voltage tolerance support stable regulation under varying load currents up to 40 mA.
The HZ9B1LRE-E exhibits a negative temperature coefficient of −0.02 %/°C, minimizing drift across −55°C to +175°C operating range. Its DO-35 glass package ensures hermetic sealing and thermal stability suitable for industrial-grade analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 8.3–8.7 V at 0.5 mA: defines precise DC reference level for feedback loops in LDOs or ADC references. |
| Power Dissipation | 400 mW max: supports continuous operation at 8.5 V / 47 mA without derating below 25°C ambient. |
| Dynamic Resistance | 60 Ω max at 0.5 mA: ensures minimal output voltage variation under load transients in precision bias networks. |
| Reverse Leakage | 1 μA max at 2.0 V: prevents parasitic current paths in high-impedance sensor interfaces. |
| Junction Temp | 175°C max: enables reliable operation in enclosed industrial enclosures with limited airflow. |
| Temp Coefficient | −0.02 %/°C typical: reduces reference drift to < ±1.7 mV/°C over full voltage range. |
Pinout & Package
Package: DO-35 glass axial lead package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band, 2.0 mm diameter × 26.0 mm length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference node | Connected to regulated output or feedback point; polarity must be observed to avoid forward conduction. |
| 2 (Anode) | Reference ground return | Completes bias path; low-inductance connection required to minimize noise coupling in sensitive analog stages. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise reduced to 1/3–1/10 of standard HZ series, enabling sub-μV RMS noise in 10 Hz–10 kHz bandwidths. |
| Tight voltage tolerance | ±0.4 V window at 25°C ensures predictable reference accuracy without post-calibration in production test. |
| Hermetic DO-35 packaging | Sealed glass body prevents moisture ingress and parameter shift over 10+ year field life in humid environments. |
| High thermal stability | 175°C junction rating allows use in engine control modules or power supply hot zones without derating. |
Applications
| Instrumentation Amplifier Reference | Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable bias voltage to op-amp input stages in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Two-terminal voltage reference establishing common-mode level for differential input pairs. Use Value: 60 Ω dynamic resistance minimizes gain error drift under varying sensor bridge excitation currents. | Use Scenario: Regulating excitation voltage for RTD or strain gauge bridges in industrial process transmitters. IC Role / Device Role / Timing Role: Low-drift DC reference source maintaining bridge balance accuracy across temperature cycles. Use Value: −0.02 %/°C tempco limits reference-induced offset error to < ±0.17 mV over −40°C to +85°C. |
| LDO Feedback Divider | Analog-to-Digital Converter Reference |
Use Scenario: Setting output voltage of adjustable low-dropout regulators in medical imaging subsystems. IC Role / Device Role / Timing Role: Precision shunt reference replacing resistive divider to improve line/load regulation. Use Value: 400 mW rating supports 10 mA reference current while maintaining < 0.5 % output voltage error. | Use Scenario: Supplying reference voltage to 16-bit SAR ADCs in test equipment requiring < 0.01 % INL. IC Role / Device Role / Timing Role: Low-noise analog reference source defining full-scale conversion threshold. Use Value: Ultra-low noise floor preserves effective number of bits (ENOB) by preventing quantization uncertainty from reference jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Zener voltage 5.1 V, 1 W rating, 7 Ω rd, DO-41 package | Higher power but wider voltage tolerance (±5 %) and no low-noise optimization | Select when higher current capability is needed and noise is secondary to cost. |
| BZX55C8V2 | Zener voltage 8.2 V, 500 mW, 15 Ω rd, DO-35 package | Lower dynamic resistance but higher leakage (5 μA) and unverified low-noise performance | Prefer for general-purpose regulation where ultra-low noise is not required. |
Compared with 1N4733A and BZX55C8V2, the HZ9B1LRE-E delivers superior noise performance and tighter voltage tolerance in the same DO-35 footprint, making it optimal for metrology-grade references where spectral purity and long-term stability outweigh raw power handling.
Availability
HZ9B1LRE-E is available at Aetrix Electronics and suitable for instrumentation amplifier reference, sensor signal conditioning, and LDO feedback divider applications requiring stable component supply, consistent parametric performance across production lots, and long-term obsolescence management.
Supply support for HZ9B1LRE-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 mixed-signal devices, and power management ICs for industrial, automotive, and infrastructure markets.
The HZ-L Series was developed specifically for low-noise voltage reference applications in high-precision analog systems, targeting instrumentation, test equipment, and sensor interface circuits where conventional Zeners introduce unacceptable signal corruption.
FAQ
What is the exact zener voltage range for HZ9B1LRE-E at 0.5 mA test current?
The HZ9B1LRE-E has a guaranteed zener voltage range of 8.3 V minimum to 8.7 V maximum when measured at 0.5 mA DC test current per the Renesas REJ03G0182-0300 datasheet. This 0.4 V tolerance window ensures predictable reference accuracy in production designs without trimming or calibration.
Does HZ9B1LRE-E have a specified noise voltage specification?
Yes - the HZ9B1LRE-E datasheet states its noise level is approximately 1/3 to 1/10 that of the standard HZ series Zener diodes. While an absolute microvolt value isn't published, this comparative metric confirms its suitability for low-noise applications such as precision ADC references and instrumentation amplifier biasing where spectral purity is critical.
What is the maximum reverse leakage current for HZ9B1LRE-E at 2.0 V?
The maximum reverse leakage current for HZ9B1LRE-E is 1 μA at VR = 2.0 V and Ta = 25°C, as specified in the Electrical Characteristics table on page 2 of the REJ03G0182-0300 datasheet. This low leakage supports high-impedance circuit nodes without introducing significant error current.
Is HZ9B1LRE-E compatible with automated optical inspection (AOI) systems during PCB assembly?
Yes - the HZ9B1LRE-E uses a standard DO-35 axial glass package with visible navy blue cathode band and consistent orange body coloring, enabling reliable detection by AOI systems. Its JEITA package code GRZZ0002ZB-A and Renesas SC-40 footprint ensure compatibility with industry-standard vision-guided placement and inspection workflows.
What is the thermal resistance junction-to-ambient for HZ9B1LRE-E in free air?
The thermal resistance junction-to-ambient (RθJA) for HZ9B1LRE-E is not explicitly stated in the datasheet, but its DO-35 package and 400 mW power rating imply a typical RθJA of ~350°C/W in free air. Derating begins above 25°C ambient per the Fig.3 power dissipation curve, reaching zero dissipation at 150°C ambient.
HZ9B1LRE-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:
- -
HZ9B1LRE-E FAQ
1.How can I place an order for HZ9B1LRE-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ9B1LRE-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 HZ9B1LRE-E reliable?
The price and inventory of HZ9B1LRE-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ9B1LRE-E is usually 5 days.
3.What payment methods are accepted for HZ9B1LRE-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ9B1LRE-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ9B1LRE-E?
HZ9B1LRE-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ9B1LRE-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 HZ9B1LRE-E?
For technical support, including HZ9B1LRE-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ9B1LRE-E requirements.
6.How does Aetrix verify that HZ9B1LRE-E is sourced from the original manufacturer or authorized distributors?
All HZ9B1LRE-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 HZ9B1LRE-E meets industry standards.
7.What is the process for return or replacement of HZ9B1LRE-E?
All HZ9B1LRE-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ9B1LRE-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 HZ9B1LRE-E part is unused and in its original packaging.
Return procedure for HZ9B1LRE-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ9B1LRE-E Tags
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