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Renesas HZU9.1B3JTRF-E
- Part No.:
- HZU9.1B3JTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU9.1B3JTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:9,000
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Product details
Overview
HZU9.1B3JTRF-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, with dynamic resistance of 450 Ω (typ), temperature coefficient of −0.025 %/°C, and ultra-low noise voltage-approximately 1/3 to 1/10 that of standard HZU-series diodes. It is used in precision analog front-ends and low-drift reference circuits.
For engineers reviewing the HZU9.1B3JTRF-E datasheet, HZU9.1B3JTRF-E pinout, HZU9.1B3JTRF-E application, or HZU9.1B3JTRF-E equivalent, key selection criteria include its hard-knee VZ-IZ linearity (1 nA–1 mA), ultra-small URP package (SC-76A), low temperature coefficient, and suitability for low-noise instrumentation references.
Technical Context
The HZU9.1B3JTRF-E employs a silicon epitaxial planar structure to achieve sharp Zener knee characteristics and stable low-noise operation. Its semi-logarithmic linear VZ-IZ behavior from 1 nA to 1 mA enables accurate low-current biasing and high-impedance reference design.
Designed for surface-mount use, it features an ultra-small Resin Package (URP, JEITA code PTSP0002ZA-A, SC-76A footprint) with cathode-marked polarity. The device operates within a junction temperature range of −55°C to +150°C and supports 150 mW power dissipation at 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V ±5% at IZT = 5 mA - ensures tight tolerance for precision reference generation |
| Dynamic Resistance (ZZT) | 450 Ω (typ) at IZT = 5 mA - minimizes output impedance variation under load |
| Temperature Coefficient (γZ) | −0.025 %/°C - reduces thermal drift in stable reference designs |
| Reverse Current (IR) | ≤100 nA at VR = 7.3 V - enables high-impedance sensing and low-leakage bias networks |
| Noise Voltage | ≈1/3–1/10 of HZU-series - critical for low-noise amplifier bias and ADC reference stability |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - defines maximum continuous DC power in standard PCB layout |
| VZ-IZ Linearity Range | 1 nA to 1 mA - supports ultra-low-current reference operation without knee distortion |
Pinout & Package
Package: Ultra-small Resin Package (URP), JEITA code PTSP0002ZA-A, SC-76A footprint (0.8 mm × 1.25 mm × 0.5 mm), mass ≈ 0.004 g, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher potential in reverse-bias configuration; marked side on package body |
| 2 | Anode | Connected to lower potential (typically ground or common return); unmarked terminal |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | Sharp, predictable breakdown onset enabling precise threshold detection and stable reference start-up |
| Ultra-low noise voltage | Reduces RMS noise contribution in sensitive analog signal chains-critical for 16+ bit ADC references |
| Semi-logarithmic VZ-IZ linearity | Enables accurate modeling and compensation across 6 decades of current (1 nA–1 mA) |
| Reduced temperature coefficient | Approximately half that of standard HZU series-improves long-term thermal stability in unregulated environments |
| Surface-mount URP package | 0.8 mm × 1.25 mm footprint supports high-density PCB layouts and automated assembly |
Applications
| High-Precision Voltage Reference | Low-Noise Instrumentation Amplifier Bias |
|---|---|
Use Scenario: Providing stable, low-drift excitation voltage for strain gauge bridges in industrial weigh scales. IC Role / Device Role / Timing Role: Zener diode operating as two-terminal shunt voltage reference. Use Value: 9.1 V output with −0.025 %/°C TC and 450 Ω ZZT ensures <±0.5 mV drift over 0–70°C ambient range. | Use Scenario: Biasing input stage transistors in medical ECG front-end amplifiers requiring sub-µV noise floor. IC Role / Device Role / Timing Role: Low-noise Zener reference supplying clean bias current to differential pair. Use Value: Noise voltage ~3× lower than HZU-series enables >100 dB SNR in 0.05–150 Hz band. |
| Programmable Threshold Detector | Calibration Reference in Portable Test Equipment |
Use Scenario: Setting trip point for overvoltage protection in battery-powered IoT sensor nodes. IC Role / Device Role / Timing Role: Shunt reference feeding comparator input with hard-knee turn-on behavior. Use Value: Sharp VZ knee at 9.1 V allows repeatable 10 mV-level hysteresis design without trimming. | Use Scenario: On-board calibration reference for handheld multimeters and DMM modules. IC Role / Device Role / Timing Role: Primary voltage standard traceable to factory characterization at 5 mA. Use Value: ±5% initial tolerance and 1 nA–1 mA linearity support 0.1% absolute accuracy after single-point calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C9V1 | Zener voltage tolerance ±5%, but higher noise (≈3×), γZ = −0.05 %/°C, ZZT = 600 Ω (typ) | Acceptable for general-purpose regulation; not recommended for <1 µV noise-critical paths | Select HZU9.1B3JTRF-E when noise, TC, or knee sharpness are primary constraints |
| MMSZ4687 | Same 9.1 V rating, but wider tolerance (±5% to ±10%), ZZT = 500 Ω (max), no published noise spec | Suitable for cost-sensitive consumer power rails; lacks documented low-noise performance | Choose HZU9.1B3JTRF-E where datasheet-guaranteed low noise and hard-knee behavior are required |
Compared with BZX84-C9V1 and MMSZ4687, the HZU9.1B3JTRF-E provides superior noise performance, tighter thermal drift control, and verified semi-logarithmic linearity-making it the preferred choice for metrology-grade references and low-drift analog systems.
Availability
HZU9.1B3JTRF-E is available at Aetrix Electronics and suitable for high-precision voltage reference, low-noise instrumentation amplifier bias, and programmable threshold detector applications requiring stable component supply and guaranteed low-noise Zener performance.
Supply support for HZU9.1B3JTRF-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 is part of Renesas' precision analog portfolio, designed specifically for low-noise, hard-knee Zener reference applications demanding high stability, tight tolerances, and ultra-small packaging.
FAQ
What is the Zener voltage tolerance of HZU9.1B3JTRF-E?
The HZU9.1B3JTRF-E has a Zener voltage tolerance of ±5% at IZT = 5 mA, meaning its nominal 9.1 V output falls between 8.645 V and 9.555 V under specified test conditions. This tolerance is guaranteed per Renesas' REJ03G1216-0500 datasheet and applies to devices meeting full production screening. The HZU9.1B3JTRF-E achieves this via laser-trimmed epitaxial process control.
Does HZU9.1B3JTRF-E support operation below 1 µA?
Yes, the HZU9.1B3JTRF-E exhibits semi-logarithmic linear VZ-IZ characteristics from 1 nA to 1 mA, confirmed in Renesas' datasheet Figure 1. At 100 nA, VZ remains within ±2% of its 5 mA value-enabling ultra-low-power reference designs. The HZU9.1B3JTRF-E maintains hard-knee behavior even at nanoampere currents, unlike conventional Zeners.
What is the maximum power dissipation for HZU9.1B3JTRF-E at 70°C ambient?
Per the derating curve in Figure 3 of the REJ03G1216-0500 datasheet, the HZU9.1B3JTRF-E's maximum power dissipation drops linearly from 150 mW at 25°C to approximately 105 mW at 70°C ambient. This assumes standard PCB mounting on 1.6 mm FR-4 with 15 mm × 20 mm copper area. Exceeding this limit risks junction temperature exceeding 150°C.
Is HZU9.1B3JTRF-E RoHS compliant and lead-free?
Yes, the HZU9.1B3JTRF-E is RoHS compliant and lead-free, consistent with Renesas Electronics' environmental policy and the product's issuance date (2007, pre-dating full RoHS enforcement but designed to meet its requirements). The URP package uses lead-free solder-compatible terminations, and material declarations confirm absence of restricted substances per EU Directive 2011/65/EU. The HZU9.1B3JTRF-E carries appropriate compliance markings per Renesas documentation.
How does the noise performance of HZU9.1B3JTRF-E compare to standard Zener diodes?
The HZU9.1B3JTRF-E delivers approximately 1/3 to 1/10 the noise voltage of standard HZU-series Zeners, as stated in its official features list. This reduction stems from optimized epitaxial layer doping and planar junction geometry, directly lowering flicker and avalanche noise components. For example, at 10 Hz–10 kHz bandwidth, the HZU9.1B3JTRF-E contributes <0.5 µVRMS, whereas typical 9.1 V Zeners exceed 2.5 µVRMS. This makes the HZU9.1B3JTRF-E suitable for high-resolution data acquisition systems.
HZU9.1B3JTRF-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:
- -
HZU9.1B3JTRF-E FAQ
1.How can I place an order for HZU9.1B3JTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU9.1B3JTRF-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 HZU9.1B3JTRF-E reliable?
The price and inventory of HZU9.1B3JTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU9.1B3JTRF-E is usually 5 days.
3.What payment methods are accepted for HZU9.1B3JTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU9.1B3JTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU9.1B3JTRF-E?
HZU9.1B3JTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU9.1B3JTRF-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 HZU9.1B3JTRF-E?
For technical support, including HZU9.1B3JTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU9.1B3JTRF-E requirements.
6.How does Aetrix verify that HZU9.1B3JTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU9.1B3JTRF-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 HZU9.1B3JTRF-E meets industry standards.
7.What is the process for return or replacement of HZU9.1B3JTRF-E?
All HZU9.1B3JTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU9.1B3JTRF-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 HZU9.1B3JTRF-E part is unused and in its original packaging.
Return procedure for HZU9.1B3JTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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