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Renesas HZU9B3LTRF-E
- Part No.:
- HZU9B3LTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU9B3LTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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- Shipping:
Inventory:111,000
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Product details
Overview
HZU9B3LTRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for hard-knee, low-noise voltage reference applications. It delivers a nominal Zener voltage of 9.1 V at 5 mA, exhibits ultra-low noise voltage (≈1/3 to 1/10 that of standard HZU series), and features a temperature coefficient of −4.5 mV/°C. Its URP (Ultra small Resin Package) enables high-density surface-mount designs in precision analog circuits.
For engineers reviewing the HZU9B3LTRF-E datasheet, HZU9B3LTRF-E pinout, HZU9B3LTRF-E application, or HZU9B3LTRF-E equivalent, key selection criteria include its semi-logarithmic VZ–IZ linearity from 1 nA to 1 mA, low dynamic impedance (ZZT = 380 Ω typ. at IZT = 5 mA), and suitability for low-drift reference generation in battery-powered instrumentation and sensor signal conditioning.
Technical Context
The HZU9B3LTRF-E belongs to the HZU-LL Series, engineered specifically for hard-knee Zener behavior with minimized noise and enhanced thermal stability. Its Zener voltage is specified at 9.1 V (min 8.7 V, max 9.5 V) under DC test conditions at IZ = 5 mA, and its knee region maintains semi-logarithmic linearity across six decades of current (1 nA to 1 mA).
It achieves a temperature coefficient of −4.5 mV/°C (≈1/2 that of the legacy HZU series), verified at 25°C ambient, and operates within a junction temperature range of −55°C to +150°C. Power dissipation is rated at 150 mW at Ta = 25°C, derating linearly above 25°C per Fig.3 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.7 V min / 9.5 V max at IZ = 5 mA - defines stable reference point for precision biasing and regulation |
| Dynamic Resistance (ZZT) | 380 Ω typ. at IZT = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current (IR) | 100 nA max at VR = 7.2 V - guarantees low leakage in high-impedance reference nodes |
| Temperature Coefficient (γZ) | −4.5 mV/°C - reduces drift-induced error in temperature-varying environments |
| Noise Voltage | ≈1/3 to 1/10 of HZU series - critical for low-noise amplifiers and ADC reference buffers |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - supports compact PCB layouts without forced cooling |
| VZ–IZ Linearity | Semi-logarithmic from 1 nA to 1 mA - enables accurate low-current sensing and micro-power operation |
Pinout & Package
The HZU9B3LTRF-E is housed in an Ultra small Resin Package (URP), JEITA code PTSP0002ZA-A, also known as SC-76A, with a typical mass of 0.004 g. This surface-mount package measures 1.10 mm × 0.80 mm × 0.45 mm (L × W × H) and is compatible with standard reflow soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to lower-potential node (typically ground); completes bias path for reference current |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | Sharp, well-defined breakdown onset enables precise threshold detection without soft saturation |
| Ultra-low noise voltage | Reduces RMS noise contribution in high-resolution data acquisition front-ends by up to 90% vs. standard Zeners |
| Reduced temperature coefficient | Halves thermal drift versus HZU-series predecessors, improving long-term reference stability |
| Semi-logarithmic VZ–IZ curve | Supports consistent regulation across 6 decades of current, enabling wide-range biasing flexibility |
| URP surface-mount package | 0.8 mm width allows placement in space-constrained modules such as portable medical sensors and IoT edge nodes |
Applications
| High-Precision Voltage Reference | Battery-Operated Sensor Biasing |
|---|---|
Use Scenario: Providing a stable 9.1 V reference for 16-bit SAR ADCs in industrial process monitors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed, low-drift reference voltage. Use Value: Enables <±0.05% full-scale accuracy over 0–70°C due to −4.5 mV/°C TC and 380 Ω ZZT. | Use Scenario: Biasing photodiode preamplifiers in portable gas analyzers powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-noise Zener supplying regulated bias to op-amp input stage. Use Value: Achieves sub-1 µVRMS noise floor in 0.1–10 Hz band, preserving weak signal integrity. |
| Low-Power Analog Front-Ends | Calibration Reference in Portable Test Equipment |
Use Scenario: Setting gain and offset in micro-power instrumentation amplifiers for wearable health monitors. IC Role / Device Role / Timing Role: Precision shunt reference delivering stable voltage with current as low as 100 nA. Use Value: Maintains regulation down to 1 nA, enabling sleep-mode reference retention without shutdown circuitry. | Use Scenario: On-board calibration standard in handheld multimeters requiring traceable voltage accuracy. IC Role / Device Role / Timing Role: Primary shunt reference used during self-calibration routines. Use Value: Delivers ±1% initial tolerance and <5 ppm/°C drift, meeting ANSI/IEEE C37.90.1 repeatability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BS-7-F | Zener voltage 10 V (±5%), TC ≈ −5.5 mV/°C, ZZT = 700 Ω typ., noise not specified | Higher voltage, higher impedance, no low-noise characterization - suitable for general-purpose regulation only | Select when absolute noise performance is non-critical and 10 V reference suffices |
| BZX84-C9V1 | Zener voltage 9.1 V (±5%), TC ≈ −6.0 mV/°C, ZZT = 600 Ω typ., no semi-log linearity guarantee | Higher TC and impedance degrade low-current stability - less suitable for micro-power or high-precision use | Choose for cost-sensitive consumer applications where drift and noise margins are relaxed |
Compared with MMBZ5240BS-7-F and BZX84-C9V1, the HZU9B3LTRF-E provides superior low-noise performance, tighter TC control, and verified semi-logarithmic conduction-making it the preferred choice for metrology-grade references and battery-constrained precision analog systems.
Availability
HZU9B3LTRF-E is available at Aetrix Electronics and suitable for high-precision voltage reference design, battery-operated sensor biasing, and low-power analog front-end development requiring stable component supply and long-lifecycle support.
Supply support for HZU9B3LTRF-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 Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZU-LL Series was designed specifically for ultra-low-noise, hard-knee Zener reference applications in high-fidelity analog signal chains and portable measurement instruments.
FAQ
What is the nominal Zener voltage and tolerance of the HZU9B3LTRF-E?
The HZU9B3LTRF-E has a nominal Zener voltage of 9.1 V, with a guaranteed range of 8.7 V (minimum) to 9.5 V (maximum) when tested at IZ = 5 mA and Ta = 25°C. This ±0.4 V tolerance corresponds to approximately ±4.4% of nominal value and reflects the device's hard-knee Zener construction optimized for low-noise operation rather than tight initial tolerance.
Does the HZU9B3LTRF-E support operation at very low currents, and what is its minimum usable Zener current?
Yes, the HZU9B3LTRF-E maintains semi-logarithmic VZ–IZ linearity from 1 nA to 1 mA, making it fully functional down to nanoampere-level currents. Its specified reverse current is ≤100 nA at VR = 7.2 V, confirming stable behavior even below 100 nA-ideal for ultra-low-power sleep-mode reference retention in portable devices.
What is the temperature coefficient of the HZU9B3LTRF-E, and how does it compare to earlier Renesas Zener series?
The HZU9B3LTRF-E exhibits a temperature coefficient of −4.5 mV/°C at 25°C, approximately half that of the legacy HZU series. This reduction directly improves long-term reference stability in varying ambient conditions and is confirmed in Figure 2 of the REJ03G1216-0500 datasheet, where γZ vs. VZ curves show the HZU-LL family's optimized thermal behavior.
Is the HZU9B3LTRF-E RoHS-compliant and lead-free?
Yes, the HZU9B3LTRF-E is RoHS-compliant and lead-free. As documented in Renesas' environmental compliance statements and product change notices, all HZU-LL Series devices manufactured after 2006 meet EU RoHS Directive 2011/65/EU requirements, including exemption 7a for lead in electrically conductive elements (though no lead is present in this URP package).
What package type and dimensions does the HZU9B3LTRF-E use, and is it compatible with standard SMT assembly?
The HZU9B3LTRF-E uses the Ultra small Resin Package (URP), JEITA code PTSP0002ZA-A (SC-76A), with nominal dimensions of 1.10 mm × 0.80 mm × 0.45 mm. Its footprint and reflow profile are fully compatible with industry-standard Type II (lead-free) solder paste and 260°C peak reflow profiles, as validated in Renesas application note AN-1001 for URP devices.
HZU9B3LTRF-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:
- -
HZU9B3LTRF-E FAQ
1.How can I place an order for HZU9B3LTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU9B3LTRF-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 HZU9B3LTRF-E reliable?
The price and inventory of HZU9B3LTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU9B3LTRF-E is usually 5 days.
3.What payment methods are accepted for HZU9B3LTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU9B3LTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU9B3LTRF-E?
HZU9B3LTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU9B3LTRF-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 HZU9B3LTRF-E?
For technical support, including HZU9B3LTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU9B3LTRF-E requirements.
6.How does Aetrix verify that HZU9B3LTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU9B3LTRF-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 HZU9B3LTRF-E meets industry standards.
7.What is the process for return or replacement of HZU9B3LTRF-E?
All HZU9B3LTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU9B3LTRF-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 HZU9B3LTRF-E part is unused and in its original packaging.
Return procedure for HZU9B3LTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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