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Renesas HZU16B3TRF-E
- Part No.:
- HZU16B3TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU16B3TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:48,000
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Product details
Overview
HZU16B3TRF-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 16.35 V to 17.09 V at 5 mA, 40 mW dynamic resistance, and 200 mW maximum power dissipation in an ultra-small URP surface-mount package.
For engineers reviewing the HZU16B3TRF-E datasheet, HZU16B3TRF-E pinout, HZU16B3TRF-E application, or HZU16B3TRF-E equivalent, this device serves as a compact, tape-and-reel–ready voltage reference for space-constrained DC-DC feedback loops, sensor biasing, and overvoltage protection where ±3% tolerance and low temperature coefficient (−0.02 %/°C typical) are critical.
Technical Context
The HZU16B3TRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals under reverse-biased conditions. Its Zener breakdown mechanism delivers predictable regulation at IZ = 5 mA, with a specified dynamic resistance of ≤40 Ω ensuring minimal voltage deviation under load transients.
Designed for ambient temperatures from –55 °C to +150 °C, it features a junction temperature limit of 150 °C and thermal derating per Fig.3 - power dissipation drops linearly from 200 mW at 25 °C to zero at 150 °C - enabling reliable operation in industrial-grade embedded systems without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.35 V to 17.09 V at IZ = 5 mA - defines stable regulation point for feedback or reference use |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous DC power handling before thermal shutdown |
| Dynamic Resistance (rd) | ≤40 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤2 μA at VR = 12.0 V - ensures low leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 150 °C maximum - defines upper thermal operating limit for reliability in sealed enclosures |
| Package | URP (SC-76A), 0.8 mm × 1.5 mm footprint - enables 0402-class PCB area usage with solderable terminations |
| Temperature Coefficient (γZ) | −0.02 %/°C typical near 16 V - minimizes drift over industrial temperature range (−40 to +85 °C) |
Pinout & Package
Ultra-small Resin Package (URP), JEITA code SC-76A, dimensions 0.8 mm × 1.5 mm × 0.45 mm (max height), mass 0.004 g, tape-and-reel packaged (TRF: 3,000 pcs/reel).
| 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 current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 0.8 mm × 1.5 mm footprint - reduces PCB real estate by >50% vs. SOD-323 in same Zener class |
| Tape-and-reel delivery (TRF) | 3,000 pcs per reel - supports automated SMT placement without manual handling or static risk |
| Grade B3 tolerance | ±2.2% Zener voltage spread (16.35–17.09 V) - enables tighter system-level voltage margin control |
| Low dynamic resistance | ≤40 Ω at 5 mA - improves line/load regulation to <15 mV for ±10% input variation |
| High junction temperature rating | 150 °C max - allows operation in thermally dense power modules without derating penalties |
Applications
| Industrial Sensor Signal Conditioning | DC-DC Converter Feedback Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 16.5 V bias to Wheatstone bridge, replacing bulkier TL431-based solutions. Use Value: Enables sub-0.1% full-scale error over −25 to +70 °C due to low γZ and tight VZ tolerance. |
Use Scenario: Setting output voltage in isolated flyback converters for industrial HMIs with 24 V input. IC Role / Device Role / Timing Role: Primary-side Zener clamp defining optocoupler LED current threshold for secondary-side regulation. Use Value: Delivers stable 16.7 V reference with ≤40 Ω rd, reducing output voltage drift to ±0.8% across line/load changes. |
| Overvoltage Protection Clamp | Microcontroller Reset Circuit Bias |
|
Use Scenario: Protecting 16 V-rated CAN transceivers from transient surges in automotive body-control modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting bus voltage to 17.1 V peak during ISO 7637-2 pulse 1/2a events. Use Value: Responds within nanoseconds with 200 mW Pd sustaining 100 ms surge energy without degradation. |
Use Scenario: Generating precise reset threshold for 3.3 V microcontrollers powered from 16 V auxiliary rails in motor drives. IC Role / Device Role / Timing Role: Voltage divider top element feeding comparator input; sets 16.5 V detection threshold before brownout. Use Value: Maintains ±0.3 V accuracy over temperature due to matched γZ and low rd, eliminating external trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | 16 V nominal, ±5% tolerance, 300 mW Pd, SOT-23 package (2.9 mm × 1.3 mm) | Larger footprint; higher power but looser VZ tolerance increases system calibration burden | Select when higher surge energy handling is required and board space permits larger package |
| MMSZ5245B-TP | 16 V nominal, ±5% tolerance, 500 mW Pd, SOD-123 package (3.7 mm × 1.6 mm) | 3× larger PCB area; higher Pd enables passive overvoltage clamping without heatsinking | Prefer for cost-sensitive consumer designs where size constraints are relaxed and 500 mW headroom is needed |
Compared with BZX84-C16LT1G and MMSZ5245B-TP, the HZU16B3TRF-E offers superior voltage accuracy (±2.2% vs. ±5%), smallest PCB footprint (0.8 × 1.5 mm), and optimized thermal performance for high-density industrial layouts - making it ideal where precision, miniaturization, and thermal stability are jointly prioritized.
Availability
HZU16B3TRF-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, DC-DC converter feedback references, overvoltage protection clamps, and microcontroller reset circuit bias requiring stable component supply with guaranteed long-term continuity.
Supply support for HZU16B3TRF-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 industrial, automotive, and infrastructure markets.
The HZU Series belongs to Renesas' precision discrete portfolio, engineered specifically for compact, high-stability voltage reference and protection functions in space-constrained industrial electronics.
FAQ
What is the Zener voltage tolerance for HZU16B3TRF-E?
The HZU16B3TRF-E has a Zener voltage range of 16.35 V to 17.09 V at IZ = 5 mA, corresponding to Grade B3 tolerance (±2.2% around nominal 16.7 V). This tighter specification than standard ±5% Zeners reduces system calibration effort and improves closed-loop accuracy in feedback applications.
Does HZU16B3TRF-E require a series current-limiting resistor in operation?
Yes, HZU16B3TRF-E must be used with an external series resistor to limit reverse current to within its 200 mW power rating and prevent thermal runaway. For example, at 24 V input and 16.7 V output, a minimum 360 Ω resistor ensures IZ ≤ 20 mA and Pd ≤ 200 mW under worst-case conditions.
What is the thermal derating behavior of HZU16B3TRF-E above 25 °C?
HZU16B3TRF-E follows linear thermal derating per Fig.3 in the datasheet: power dissipation decreases from 200 mW at 25 °C to 0 mW at 150 °C. At 85 °C ambient, maximum allowable Pd is approximately 120 mW - requiring design verification of junction temperature using θJA ≈ 625 °C/W for URP package on standard FR-4.
Can HZU16B3TRF-E be used in place of a TL431-based shunt regulator?
HZU16B3TRF-E serves as a passive two-terminal alternative to active shunt regulators like the TL431, offering simpler implementation and lower quiescent current. However, it lacks adjustable output and temperature-compensated reference; use only where fixed 16.7 V regulation with ±2.2% tolerance meets system requirements.
Is HZU16B3TRF-E RoHS compliant and halogen-free?
Yes, HZU16B3TRF-E complies with EU RoHS Directive 2011/65/EU and is halogen-free per JESD209-4 standards, as confirmed in Renesas' official product change notices and material declarations. Full compliance documentation is available upon request from Aetrix Electronics.
HZU16B3TRF-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:
- -
HZU16B3TRF-E FAQ
1.How can I place an order for HZU16B3TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU16B3TRF-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 HZU16B3TRF-E reliable?
The price and inventory of HZU16B3TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU16B3TRF-E is usually 5 days.
3.What payment methods are accepted for HZU16B3TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU16B3TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU16B3TRF-E?
HZU16B3TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU16B3TRF-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 HZU16B3TRF-E?
For technical support, including HZU16B3TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU16B3TRF-E requirements.
6.How does Aetrix verify that HZU16B3TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU16B3TRF-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 HZU16B3TRF-E meets industry standards.
7.What is the process for return or replacement of HZU16B3TRF-E?
All HZU16B3TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU16B3TRF-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 HZU16B3TRF-E part is unused and in its original packaging.
Return procedure for HZU16B3TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU16B3TRF-E Tags
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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