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Renesas HZU8.2B2JTRF
- Part No.:
- HZU8.2B2JTRF
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU8.2B2JTRF.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:105,000
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Product details
Overview
HZU8.2B2JTRF from Renesas Electronics is a silicon planar Zener diode designed for 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 V, 5 Ω dynamic resistance at 5 mA test current, and 200 mW power dissipation in the ultra-small URP surface-mount package.
For engineers reviewing the HZU8.2B2JTRF datasheet, HZU8.2B2JTRF pinout, HZU8.2B2JTRF application, or HZU8.2B2JTRF equivalent, this device serves as a precision shunt regulator in compact DC-DC feedback networks, sensor biasing, and overvoltage protection where tight voltage tolerance, low dynamic impedance, and thermal stability across –55°C to +150°C are required.
Technical Context
The HZU8.2B2JTRF operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its specified Zener breakdown threshold. Its silicon planar construction ensures repeatable breakdown characteristics and low temperature coefficient near zero crossing (~0 mV/°C at ~8.2 V).
It is rated for 200 mW maximum power dissipation at 25°C ambient, derating linearly to zero at 150°C junction temperature. The device uses pulse testing (40 ms width) for electrical characterization and is qualified for storage between –55°C and +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.28 V to 8.64 V at IZ = 5 mA - defines precise regulation point for feedback or reference use |
| Dynamic Resistance (rd) | 5 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage Current (IR) | 2 μA max at VR = 5 V - guarantees low quiescent current in standby or high-impedance bias networks |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - supports operation in space-constrained PCB layouts without forced cooling |
| Junction Temperature (Tj) | –55°C to +150°C - enables deployment in industrial and automotive under-hood environments |
| Package | URP (SC-76A / JEITA PTSP0002ZA-A) - 0.8 mm × 0.8 mm × 0.45 mm footprint ideal for high-density SMT assembly |
Pinout & Package
URP (Ultra Small Resin Package) is a 2-pin surface-mount package with cathode-marked top-side marking and gull-wing lead configuration. Dimensions: 0.8 mm × 0.8 mm body, 0.45 mm height, 0.65 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 0.8 mm × 0.8 mm footprint enables placement in tight spaces on portable and IoT PCBs |
| Taped and reel packaging (TRF) | 3,000 pcs/reel format supports automated SMT pick-and-place without manual handling |
| Low dynamic resistance | 5 Ω typical at 5 mA ensures stable regulation even with varying load currents |
| Grade B2 tolerance | ±2.2% Zener voltage spread (8.28–8.64 V) allows tighter system-level voltage margining |
| High-temperature operation | Rated up to +150°C junction temperature supports use in thermally demanding enclosures |
Applications
| Power Supply Feedback Reference | Sensor Biasing Network |
|---|---|
|
Use Scenario: Provides stable 8.2 V reference in secondary-side feedback loop of isolated flyback converters. IC Role / Device Role / Timing Role: Shunt voltage reference for optocoupler-driven error amplifier input. Use Value: Enables ±1% output regulation accuracy despite input line and load variations due to low rd and tight VZ tolerance. |
Use Scenario: Supplies precise bias voltage to analog-output pressure or temperature sensors. IC Role / Device Role / Timing Role: Low-drift voltage source for sensor excitation and ADC reference scaling. Use Value: Reduces measurement offset drift to <±0.5% over –40°C to +85°C via near-zero γZ at 8.2 V. |
| Overvoltage Clamp Protection | Microcontroller Reset Circuit |
|
Use Scenario: Clamps transient surges on 5 V or 3.3 V rails to prevent downstream IC damage. IC Role / Device Role / Timing Role: Fast-acting shunt limiter triggered above safe rail threshold. Use Value: Absorbs >100 mW surge energy within 40 ms pulses without degradation, per absolute max rating. |
Use Scenario: Generates clean reset signal when main supply drops below 7.5 V during brownout. IC Role / Device Role / Timing Role: Threshold detector feeding RC-delayed Schmitt trigger input. Use Value: Delivers predictable 8.2 V turn-on with sub-μA leakage, minimizing false resets in battery-powered systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2LT1G | 8.2 V ±5%, 300 mW Pd, SOT-23 package (1.3 mm × 1.3 mm) | Larger footprint; higher power rating but looser voltage tolerance | Select when board layout allows larger package and higher surge energy absorption is needed |
| MMSZ4689T1G | 8.2 V ±5%, 500 mW Pd, SOD-123 package (1.8 mm × 1.4 mm) | Higher power, wider tolerance, different thermal profile and mounting geometry | Prefer for cost-sensitive designs where tighter VZ tolerance is not critical and thermal mass matters |
Compared with BZX84-C8V2LT1G and MMSZ4689T1G, the HZU8.2B2JTRF offers superior voltage accuracy (±2.2% vs. ±5%), smaller URP footprint (0.64 mm² vs. ≥1.69 mm²), and optimized thermal response for compact, high-stability references-making it preferred where space and regulation precision are constrained.
Availability
HZU8.2B2JTRF is available at Aetrix Electronics and suitable for power supply feedback references, sensor biasing networks, overvoltage clamp protection, and microcontroller reset circuits requiring stable component supply with consistent Zener voltage grading and tape-and-reel delivery.
Supply support for HZU8.2B2JTRF 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 manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and advanced SoCs for industrial, automotive, and infrastructure markets.
The HZU Series belongs to Renesas' silicon planar Zener diode product line, engineered specifically for high-precision, low-power voltage stabilization in space-constrained surface-mount applications.
FAQ
What is the Zener voltage tolerance for HZU8.2B2JTRF?
The HZU8.2B2JTRF has a Zener voltage range of 8.28 V to 8.64 V at 5 mA test current, corresponding to Grade B2 tolerance (±2.2%). This tighter specification than standard ±5% Zeners improves system-level voltage accuracy in feedback and reference applications without external trimming.
Is HZU8.2B2JTRF suitable for high-temperature environments?
Yes, HZU8.2B2JTRF is rated for junction temperatures from –55°C to +150°C and storage temperatures over the same range. Its silicon planar construction and URP package enable reliable operation in industrial control cabinets and automotive under-dash modules where ambient temperatures exceed 100°C.
What does the "TRF" suffix indicate in HZU8.2B2JTRF?
The "TRF" suffix denotes tape-and-reel packaging with 3,000 units per reel, using the STSP0002ZA-A carrier tape format. This configuration is optimized for high-speed SMT placement equipment and eliminates manual handling, supporting consistent automated assembly of HZU8.2B2JTRF into production PCBs.
How does the dynamic resistance of HZU8.2B2JTRF affect regulation performance?
HZU8.2B2JTRF specifies dynamic resistance ≤5 Ω at 5 mA, meaning output voltage changes by ≤25 mV for a 5 mA load step. This low rd ensures minimal regulation error in feedback loops and bias networks where current draw varies, directly improving system accuracy and stability.
Can HZU8.2B2JTRF replace older Zener diodes like 1N4738A in existing designs?
HZU8.2B2JTRF is not a direct drop-in replacement for 1N4738A due to its URP (0.8 mm × 0.8 mm) package versus DO-41 (4.5 mm × 2.5 mm). While both regulate at ~8.2 V, the HZU8.2B2JTRF requires PCB redesign for SMT pads and offers tighter tolerance and lower rd, making it suitable only for new compact designs-not legacy through-hole layouts.
HZU8.2B2JTRF 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:
- -
HZU8.2B2JTRF FAQ
1.How can I place an order for HZU8.2B2JTRF through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU8.2B2JTRF 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 HZU8.2B2JTRF reliable?
The price and inventory of HZU8.2B2JTRF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU8.2B2JTRF is usually 5 days.
3.What payment methods are accepted for HZU8.2B2JTRF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU8.2B2JTRF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU8.2B2JTRF?
HZU8.2B2JTRF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU8.2B2JTRF 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 HZU8.2B2JTRF?
For technical support, including HZU8.2B2JTRF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU8.2B2JTRF requirements.
6.How does Aetrix verify that HZU8.2B2JTRF is sourced from the original manufacturer or authorized distributors?
All HZU8.2B2JTRF 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 HZU8.2B2JTRF meets industry standards.
7.What is the process for return or replacement of HZU8.2B2JTRF?
All HZU8.2B2JTRF units undergo pre-shipment inspection (PSI). If there is an issue with HZU8.2B2JTRF, 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 HZU8.2B2JTRF part is unused and in its original packaging.
Return procedure for HZU8.2B2JTRF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU8.2B2JTRF Tags
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MM5Z5V1ST1G
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