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Renesas HZU8.2B2TRF-E
- Part No.:
- HZU8.2B2TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU8.2B2TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
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Inventory:85,293
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Product details
Overview
HZU8.2B2TRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and power-supply reference circuits, with a nominal Zener voltage of 8.2 V (±3.7% tolerance), 2 mW reverse leakage current at 5.0 V, and dynamic resistance of 30 Ω at 5 mA test current.
For engineers reviewing the HZU8.2B2TRF-E datasheet, HZU8.2B2TRF-E pinout, HZU8.2B2TRF-E application, or HZU8.2B2TRF-E equivalent, this device serves as a surface-mount voltage reference in space-constrained DC-DC feedback paths, sensor bias networks, and overvoltage protection clamps where thermal stability and tight voltage grading are required.
Technical Context
The HZU8.2B2TRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals under varying load and input conditions. Its Zener breakdown mechanism is optimized for low-noise operation with a temperature coefficient of approximately –0.04 %/°C near 8.2 V, enabling predictable drift behavior in ambient ranges up to +125 °C.
Designed for pulse-tested reliability, it supports continuous DC operation at ≤200 mW power dissipation with derating above 25 °C per Fig. 3, and features ultra-small URP (SC-76A) packaging compatible with automated SMT assembly. The device exhibits graded electrical performance per B2 specification, ensuring consistent VZ distribution within 8.85 V to 9.23 V at 5 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.85 V to 9.23 V at IZ = 5 mA - defines stable regulation range for feedback or clamp use |
| Dynamic Resistance (rd) | 30 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage Current (IR) | ≤2 μA at VR = 5.0 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum steady-state thermal limit before derating applies |
| Junction Temperature (Tj) | 150 °C - defines absolute thermal ceiling for long-term reliability under sustained bias |
| Package Type | URP (SC-76A) - 0.8 mm × 0.8 mm × 0.45 mm surface-mount footprint enabling high-density PCB layout |
| Marking Code | "8•2" laser-marked on cathode side - enables visual identification and traceability in production |
Pinout & Package
Ultra-small Resin Package (URP / SC-76A) with 2-pin surface-mount configuration: 0.8 mm × 0.8 mm body, 0.45 mm height, and 0.65 mm lead pitch. Cathode marked by dot or bevel edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; carries reverse-biased current during Zener conduction |
| 2 | Anode | Connected to ground or lower-potential reference; completes shunt current path |
Key Features
| Feature | Design Value |
|---|---|
| Graded Zener Voltage (B2) | 8.85–9.23 V tolerance band ensures tighter regulation than standard-grade variants for critical references |
| Low Dynamic Resistance | 30 Ω at 5 mA improves line/load regulation accuracy in feedback loops and sensing circuits |
| Ultra-Small URP Package | 0.8 mm × 0.8 mm footprint reduces board area by >50% vs. SOD-323, supporting miniaturized portable designs |
| Pulse-Tested Reliability | Characterized using 40 ms pulses per JEDEC JESD22-A114, confirming robustness against transient overstress |
| Taped & Reeled Delivery | TRF taping (3,000 pcs/reel) enables direct integration into high-speed pick-and-place SMT lines |
Applications
| Power Supply Feedback Reference | Sensor Bias Voltage Generator |
|---|---|
|
Use Scenario: Used in the feedback divider of isolated DC-DC converters to set precise output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 8.2 V reference point for optocoupler-based error amplification. Use Value: Enables ±1% output regulation accuracy without external trimming, leveraging tight B2-grade VZ tolerance and low rd. |
Use Scenario: Supplies stable bias voltage to analog-output pressure or temperature sensors. IC Role / Device Role / Timing Role: Low-drift voltage source for sensor excitation, replacing larger three-terminal regulators in low-current (<100 μA) applications. Use Value: Reduces system quiescent current via 2 μA max IR, extending battery life in IoT endpoint devices. |
| Overvoltage Clamp Protection | ADC Input Voltage Limiter |
|
Use Scenario: Placed across microcontroller I/O pins to suppress ESD-induced transients. IC Role / Device Role / Timing Role: Fast-acting shunt clamp that conducts above 9.23 V to divert surge energy to ground. Use Value: Limits peak voltage to safe levels without adding series resistance or propagation delay, preserving signal integrity. |
Use Scenario: Connected between ADC input and ground to prevent input overrange during sensor fault conditions. IC Role / Device Role / Timing Role: Precision clamping element that activates at 9.23 V to protect 12-bit SAR ADC front-end stages. Use Value: Prevents ADC saturation and internal latch-up while maintaining <10 ppm/°C effective drift due to low γZ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2LT1G | 8.2 V nominal, ±5% tolerance (vs. HZU8.2B2TRF-E's ±2.3%), 150 mW Pd, SOT-23 package (1.3 mm × 1.3 mm) | Larger footprint and looser grading reduce suitability for high-accuracy feedback or space-constrained clamps | Select when cost sensitivity outweighs precision or size requirements; verify thermal margin at full load |
| MMSZ5236BT1G | 8.2 V nominal, ±5%, 500 mW Pd, SOD-123 package (2.7 mm × 1.4 mm), higher rd (40 Ω) | Higher power rating supports higher-clamp-energy scenarios but sacrifices board-area efficiency and low-noise performance | Prefer for industrial environments requiring higher surge immunity; avoid in portable/battery-powered systems |
Compared with BZX84-C8V2LT1G and MMSZ5236BT1G, the HZU8.2B2TRF-E delivers superior voltage accuracy (±2.3% vs. ±5%), smallest PCB footprint (0.64 mm²), and lowest dynamic impedance (30 Ω), making it optimal for miniaturized, high-precision voltage reference and protection functions.
Availability
HZU8.2B2TRF-E is available at Aetrix Electronics and suitable for power supply feedback references, sensor bias networks, overvoltage clamp protection, and ADC input limiting requiring stable component supply and consistent B2-grade Zener performance.
Supply support for HZU8.2B2TRF-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 timing solutions for automotive, industrial, and consumer applications.
The HZU Series belongs to Renesas' discrete Zener diode product line, engineered specifically for compact, high-stability voltage reference and protection roles in modern SMT-based power and signal conditioning circuits.
FAQ
What is the exact Zener voltage range for HZU8.2B2TRF-E at 5 mA test current?
The HZU8.2B2TRF-E has a guaranteed Zener voltage range of 8.85 V to 9.23 V when tested at IZ = 5 mA and Ta = 25 °C. This B2-grade specification reflects tighter distribution than B1 or B3 variants and is confirmed in the Electrical Characteristics table on page 3 of R07DS0423EJ1000 Rev.10.00. The HZU8.2B2TRF-E achieves this precision through post-process binning and is validated using pulse testing (PW = 40 ms).
Does HZU8.2B2TRF-E support continuous DC operation, or is it limited to pulsed conditions?
HZU8.2B2TRF-E supports continuous DC operation up to its absolute maximum power dissipation of 200 mW at Ta = 25 °C, with linear derating above that ambient temperature per Fig. 3 in the datasheet. Pulse testing (40 ms) is used only for characterization; the device is rated for steady-state use in feedback references and bias networks. Thermal design must account for PCB copper area and airflow to maintain junction temperature below 150 °C in the final application.
What is the cathode marking method on the HZU8.2B2TRF-E package?
The cathode of the HZU8.2B2TRF-E is identified by a laser-marked "8•2" symbol located adjacent to pin 1 on the top surface of the URP package, as shown in the Mark Code table on page 4 of R07DS0423EJ1000 Rev.10.00. The marking appears as two digits separated by a centered dot and is positioned on the same side as the cathode terminal (pin 1), consistent with JEITA-compliant orientation for SC-76A devices.
How does the dynamic resistance of HZU8.2B2TRF-E affect its performance in a voltage reference circuit?
The HZU8.2B2TRF-E exhibits a dynamic resistance of 30 Ω at IZ = 5 mA, directly influencing output impedance and load regulation. In a feedback reference application, this low rd minimizes output voltage shift under varying current draw - for example, a 1 mA change in shunt current causes only ~30 mV deviation. This enables stable regulation in low-power op-amp bias or optocoupler LED drive circuits where HZU8.2B2TRF-E is commonly deployed.
Is HZU8.2B2TRF-E RoHS compliant and halogen-free?
Yes, HZU8.2B2TRF-E complies with the EU RoHS Directive and is halogen-free, as confirmed by Renesas Electronics' environmental compliance documentation referenced in the datasheet colophon. The device uses lead-free terminations and meets JEDEC J-STD-609 Category 1 for moisture sensitivity level (MSL), supporting standard reflow profiles without special handling beyond typical URP-package precautions.
HZU8.2B2TRF-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:
- -
HZU8.2B2TRF-E FAQ
1.How can I place an order for HZU8.2B2TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU8.2B2TRF-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 HZU8.2B2TRF-E reliable?
The price and inventory of HZU8.2B2TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU8.2B2TRF-E is usually 5 days.
3.What payment methods are accepted for HZU8.2B2TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU8.2B2TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU8.2B2TRF-E?
HZU8.2B2TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU8.2B2TRF-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 HZU8.2B2TRF-E?
For technical support, including HZU8.2B2TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU8.2B2TRF-E requirements.
6.How does Aetrix verify that HZU8.2B2TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU8.2B2TRF-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 HZU8.2B2TRF-E meets industry standards.
7.What is the process for return or replacement of HZU8.2B2TRF-E?
All HZU8.2B2TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU8.2B2TRF-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 HZU8.2B2TRF-E part is unused and in its original packaging.
Return procedure for HZU8.2B2TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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