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Renesas HZK16-1UR
- Part No.:
- HZK16-1UR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK16-1UR.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:70,000
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Product details
Overview
HZK16-1UR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation in stabilized power supplies, with a nominal zener voltage of 16 V (min 15.3 V, max 17.1 V), dynamic resistance of 45 Ω at 5 mA, maximum power dissipation of 500 mW, and LLD surface-mount package. It operates within –55°C to +175°C storage range and supports precision reference applications in industrial and consumer power circuits.
For engineers reviewing the HZK16-1UR datasheet, HZK16-1UR pinout, HZK16-1UR application, or HZK16-1UR equivalent, key selection criteria include zener voltage tolerance (±5.6% at 16 V), low leakage current (≤1 µA at VR = 12 V), thermal coefficient behavior (≈+8.5 mV/°C), and compatibility with high-density PCB assembly using the LLD package.
Technical Context
The HZK16-1UR employs a silicon epitaxial planar junction structure optimized for stable reverse-breakdown operation under DC bias. Its zener voltage is specified at 5 mA test current, with dynamic resistance measured at the same condition to ensure predictable regulation performance across load variations.
Designed for surface-mount use in compact power rails, the device exhibits a positive temperature coefficient (~+8.5 mV/°C) typical of mid-voltage Zener diodes, enabling predictable drift compensation in reference designs. The LLD package supports automated placement and reflow soldering without derating below 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulation window for stable 16 V reference output |
| Dynamic Resistance (rd) | 45 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Maximum Power Dissipation (Pd) | 500 mW at Ta = 25°C - sets upper limit for continuous DC power handling on standard PCB |
| Reverse Current (IR) | ≤1 µA at VR = 12 V - ensures minimal quiescent leakage in standby or low-power modes |
| Junction Temperature (Tj) | 175°C max - enables operation in thermally demanding environments such as enclosed power supplies |
| Package | LLD - ultra-compact surface-mount outline (1.4 mm Ø, 0.35 mm height) for high-density layout |
Pinout & Package
LLD package: cylindrical glass-body surface-mount diode with axial lead configuration flattened for tape-and-reel handling; cathode identified by band marking; terminals are non-polarized but functionally asymmetric (cathode/anode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node in reverse-bias regulation; carries full zener current during conduction |
| 2 (Non-banded End) | Anode | Connected to lower potential (typically ground or return path); completes bias circuit for breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 45 Ω max ensures tight voltage regulation under varying load currents in feedback references |
| Wide zener voltage spectrum | 16 V nominal point fits mid-range supply stabilization needs where 12 V or 24 V options are unsuitable |
| High power density | 500 mW in LLD package allows robust regulation without heatsinking in space-constrained PCBs |
| Stable temperature coefficient | +8.5 mV/°C enables predictable drift modeling for compensated reference designs |
Applications
| Industrial Power Supply Reference | Consumer Audio DC Rail Stabilization |
|---|---|
Use Scenario: Precision voltage reference in isolated flyback auxiliary winding feedback networks for AC/DC adapters. IC Role / Device Role / Timing Role: Zener diode providing stable 16 V clamp for optocoupler bias and TL431 reference divider scaling. Use Value: Tight 15.3–17.1 V tolerance minimizes output voltage drift across line/load/temperature in Class II power supplies. |
Use Scenario: Local rail stabilization for analog audio amplifier biasing stages in compact home theater receivers. IC Role / Device Role / Timing Role: Shunt regulator maintaining clean ±15 V analog supply rails against digital noise coupling. Use Value: 45 Ω dynamic resistance suppresses ripple-induced modulation distortion in preamp gain blocks. |
| Automotive Body Control Module (BCM) Sensor Bias | Programmable Logic Controller (PLC) Input Protection |
Use Scenario: Providing regulated excitation voltage for resistive temperature sensors (RTDs) in engine bay BCMs. IC Role / Device Role / Timing Role: Zener-based reference source for ratiometric ADC measurement front-end with 12 V system input. Use Value: 175°C max junction temperature rating supports direct mounting near heat-generating MCU or power FETs. |
Use Scenario: Overvoltage clamping on 24 V digital input channels in industrial PLC backplanes. IC Role / Device Role / Timing Role: Fast-acting shunt limiter protecting FPGA I/O banks from transient surges on field wiring. Use Value: Sub-1 µA leakage at 12 V ensures no false triggering during low-state detection in dry-contact interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C16 (ON Semiconductor) | Same 16 V nominal, ±5% tolerance (15.2–16.8 V), 500 mW, DO-35 package - larger footprint, higher thermal resistance | Requires PCB real estate adjustment; less suitable for ultra-dense layouts than LLD | Select when legacy through-hole compatibility or higher surge immunity is prioritized over size |
| MMSZ4687 (Vishay) | 16 V nominal, ±5% tolerance, 500 mW, SOD-123 package - 1.8× larger body, 0.9 mm height vs. LLD's 0.35 mm | Compatible with standard SMT pick-and-place but increases board area by ~300% | Choose when existing SOD-123 footprint reuse is required and height clearance permits |
Compared with BZX55C16 and MMSZ4687, the HZK16-1UR delivers identical regulation performance in a significantly smaller LLD package-enabling higher component density and improved thermal response in modern compact power designs-while maintaining full compatibility with reflow assembly processes.
Availability
HZK16-1UR is available at Aetrix Electronics and suitable for industrial power supply reference, consumer audio DC rail stabilization, and automotive body control module sensor bias requiring stable component supply and long-term manufacturability.
Supply support for HZK16-1UR 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 leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and consumer systems.
The HZK Series was developed by Renesas Electronics as a family of precision silicon Zener diodes targeting cost-sensitive, high-reliability voltage reference and stabilization functions in mass-produced power conversion and sensing applications.
FAQ
What is the exact zener voltage range for HZK16-1UR at 5 mA test current?
The HZK16-1UR has a guaranteed zener voltage range of 15.3 V to 17.1 V when tested at IZ = 5 mA and Ta = 25°C. This ±5.6% tolerance reflects the device's grade-specific specification per the HZK Series datasheet Rev.3.00, and applies directly to the HZK16-1UR variant without interpolation or extrapolation.
Does HZK16-1UR support reflow soldering, and what is its maximum peak temperature rating?
Yes, the HZK16-1UR in LLD package is qualified for standard lead-free reflow soldering profiles. Its glass-body construction withstands peak temperatures up to 260°C for ≤10 seconds, consistent with IPC/JEDEC J-STD-020 requirements. The HZK16-1UR must be mounted with the banded end (cathode) oriented per PCB silkscreen to maintain correct polarity after reflow.
What is the reverse leakage current specification for HZK16-1UR at 12 V applied reverse voltage?
The HZK16-1UR specifies a maximum reverse leakage current of 1 µA when VR = 12 V and Ta = 25°C. This value is confirmed in the "Electrical Characteristics" table on page 3 of the HZK Series datasheet Rev.3.00 and is critical for low-power standby circuits where HZK16-1UR serves as a precision clamp.
Is HZK16-1UR rated for automotive applications, and what quality grade does it carry?
The HZK16-1UR is classified as a "Standard" quality grade device per Renesas Electronics' product grading system, intended for industrial, consumer, and office equipment-not automotive safety-critical systems. Its datasheet explicitly excludes transportation equipment use without prior written consent, confirming HZK16-1UR is not AEC-Q200 qualified.
How does the temperature coefficient of HZK16-1UR affect its regulation accuracy over –40°C to +125°C?
The HZK16-1UR exhibits a typical zener voltage temperature coefficient of +8.5 mV/°C, meaning its regulated voltage increases linearly with temperature. Over –40°C to +125°C, this results in approximately ±1.4 V total drift relative to 25°C baseline-requiring external compensation if sub-1% stability is needed. This behavior is documented in Figure 2 of the HZK Series datasheet Rev.3.00 for the HZK16-1UR.
HZK16-1UR 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:
- -
HZK16-1UR FAQ
1.How can I place an order for HZK16-1UR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK16-1UR 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 HZK16-1UR reliable?
The price and inventory of HZK16-1UR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK16-1UR is usually 5 days.
3.What payment methods are accepted for HZK16-1UR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK16-1UR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK16-1UR?
HZK16-1UR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK16-1UR 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 HZK16-1UR?
For technical support, including HZK16-1UR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK16-1UR requirements.
6.How does Aetrix verify that HZK16-1UR is sourced from the original manufacturer or authorized distributors?
All HZK16-1UR 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 HZK16-1UR meets industry standards.
7.What is the process for return or replacement of HZK16-1UR?
All HZK16-1UR units undergo pre-shipment inspection (PSI). If there is an issue with HZK16-1UR, 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 HZK16-1UR part is unused and in its original packaging.
Return procedure for HZK16-1UR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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