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Renesas HZK5CLL-JTR
- Part No.:
- HZK5CLL-JTR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK5CLL-JTR.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:47,500
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Product details
Overview
HZK5CLL-JTR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation in stabilized power supplies, with a nominal zener voltage of 4.9–5.3 V (Grade C), 500 mW power dissipation, 100 Ω dynamic resistance at 5 mA, and LLD surface-mount package. It serves as a precision reference in low-power linear regulators and overvoltage protection circuits.
For engineers reviewing the HZK5CLL-JTR datasheet, HZK5CLL-JTR pinout, HZK5CLL-JTR application, or HZK5CLL-JTR equivalent, key selection criteria include zener voltage tolerance (±0.4 V), temperature coefficient (−2.5 mV/°C), junction temperature limit (175°C), and LLD package compatibility with high-density PCB assembly.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ dispersion across Grade C (4.9–5.3 V) and exhibits low dynamic impedance (≤100 Ω) at IZ = 5 mA, enabling stable regulation under varying load conditions. Its silicon epitaxial planar construction ensures reproducible breakdown characteristics and low leakage current (≤5 µA at VR = 1.5 V).
The device is rated for 500 mW power dissipation on a standard PCB, with thermal derating beginning above 25°C ambient and full derating to zero at 125°C. Junction-to-ambient thermal resistance is optimized for the LLD package, supporting reliable operation in compact consumer and industrial power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.9–5.3 V at IZ = 5 mA - defines precise regulation threshold for 5 V rail stabilization |
| Power Dissipation (Pd) | 500 mW - supports continuous operation in low-power supply feedback paths without heatsinking |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | ≤5 µA at VR = 1.5 V - guarantees low quiescent current in battery-backed or energy-sensitive designs |
| Junction Temperature (Tj) | 175°C maximum - enables use in thermally constrained enclosures with adequate PCB copper area |
| Temperature Coefficient (γZ) | −2.5 mV/°C - provides predictable, negative drift for compensation in multi-diode references |
Pinout & Package
The HZK5CLL-JTR uses the LLD (Leadless Low-profile Diode) surface-mount package - a 2-terminal, cathode-banded, rectangular plastic case measuring 1.4 mm × 1.35 mm × 0.35 mm (typ.), mass 0.027 g, suitable for automated high-speed placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown terminal | Connected to regulated output node; reverse-biased to maintain fixed VZ drop |
| 2 (Anode) | Reference terminal | Typically tied to ground or lower-potential rail; completes bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω at 5 mA - improves line/load regulation in feedback loops |
| Wide zener voltage range coverage | 1.9–38 V across HZK family - allows single-source procurement for multiple voltage rails |
| LLD surface-mount package | 1.4 mm × 1.35 mm footprint - enables high-density layout in space-constrained consumer electronics |
| High junction temperature rating | 175°C max - supports operation in sealed or poorly ventilated enclosures |
Applications
| USB Peripheral Power Regulation | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Regulating 5 V USB bus-derived supply for low-power peripherals such as HID devices or sensors. IC Role / Device Role / Timing Role: Zener reference in shunt regulator configuration, clamping excess voltage to protect downstream logic. Use Value: Tight 4.9–5.3 V tolerance ensures compliance with USB 2.0 5 V ±5% spec while minimizing dropout loss. | Use Scenario: Generating a clean, temperature-stable reset threshold for 3.3 V or 5 V microcontrollers. IC Role / Device Role / Timing Role: Precision voltage reference feeding RC-based reset generator or supervisor IC input. Use Value: −2.5 mV/°C tempco allows predictable reset point shift across industrial temperature range (−40°C to +85°C). |
| LED Current Source Bias | ADC Reference Stabilization |
Use Scenario: Setting reference voltage for constant-current LED driver ICs in indicator or backlight applications. IC Role / Device Role / Timing Role: Stable voltage source defining ISET node in adjustable current regulators. Use Value: ≤5 µA leakage prevents error injection into high-impedance bias networks at low light levels. | Use Scenario: Providing stable reference for 8–10-bit SAR ADCs in data loggers or sensor interfaces. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference for analog front-end scaling. Use Value: 100 Ω dynamic resistance limits reference perturbation during ADC sampling transients. |
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 |
|---|---|---|---|
| BZX55C5V1 | 5.1 V nominal, ±5% tolerance (vs. HZK5CLL-JTR's ±0.4 V), DO-35 package (larger than LLD) | Higher voltage tolerance and through-hole mounting limit suitability for high-density SMT designs | Select when legacy DO-35 footprint or looser regulation is acceptable |
| MMSZ5225B | 5.1 V nominal, ±5%, SOD-123 package (1.8 mm × 1.4 mm), 500 mW rating | Slightly larger footprint and wider VZ tolerance reduce precision in tight-regulation applications | Choose for broad distributor availability and RoHS-compliant sourcing where Grade C tight tolerance is not required |
Compared with BZX55C5V1 and MMSZ5225B, HZK5CLL-JTR delivers tighter zener voltage control (±0.4 V vs. ±5%), smaller LLD footprint (1.4 mm × 1.35 mm), and lower temperature coefficient (−2.5 mV/°C), making it preferable for space-constrained, high-accuracy 5 V reference designs.
Availability
HZK5CLL-JTR is available at Aetrix Electronics and suitable for USB peripheral power regulation, microcontroller reset circuits, LED current source biasing, and ADC reference stabilization requiring stable component supply and consistent Grade C zener performance.
Supply support for HZK5CLL-JTR 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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions, with global design and manufacturing infrastructure.
The HZK Series is part of Renesas' discrete Zener diode portfolio, engineered for precision voltage stabilization in consumer, office, and industrial power supply applications under the "Standard" quality grade.
FAQ
What is the exact zener voltage range specified for HZK5CLL-JTR?
The HZK5CLL-JTR is a Grade C device with a guaranteed zener voltage range of 4.9 V to 5.3 V at test current IZ = 5 mA, as confirmed in the Renesas HZK Series datasheet Rev.3.00. This ±0.4 V tolerance enables high-accuracy regulation where tighter control than standard ±5% Zeners is required. The HZK5CLL-JTR achieves this via process-controlled epitaxial planar junction formation.
Does HZK5CLL-JTR have a specified temperature coefficient, and how does it affect circuit performance?
Yes, the HZK5CLL-JTR has a temperature coefficient of −2.5 mV/°C, meaning its zener voltage decreases by 2.5 mV per degree Celsius rise in junction temperature. This predictable negative drift allows designers to compensate adjacent components-such as in dual-Zener references-or anticipate regulation shift across operating temperature ranges. The HZK5CLL-JTR's coefficient is documented in Figure 2 of the official Renesas datasheet.
What is the package type and physical size of HZK5CLL-JTR?
HZK5CLL-JTR uses the LLD (Leadless Low-profile Diode) package: a 2-terminal, surface-mount plastic case measuring 1.4 mm × 1.35 mm × 0.35 mm (typical height), with cathode identified by a band. Its 0.027 g mass and compact footprint support high-density PCB layouts and automated pick-and-place assembly. Package dimensions are specified on page 6 of the Renesas HZK Series datasheet.
Can HZK5CLL-JTR be used in place of a 5.1 V Zener diode like BZX55C5V1?
HZK5CLL-JTR is not a direct replacement for BZX55C5V1 due to differences in tolerance (±0.4 V vs. ±5%), package (LLD vs. DO-35), and temperature coefficient (−2.5 mV/°C vs. ≈−2.0 mV/°C). While both regulate near 5 V, the HZK5CLL-JTR's tighter specification and SMT form factor require layout and tolerance validation. Use HZK5CLL-JTR only where Grade C precision and LLD mounting are explicitly needed.
Is HZK5CLL-JTR compliant with RoHS and lead-free assembly requirements?
Yes, HZK5CLL-JTR meets RoHS Directive requirements and is compatible with lead-free reflow soldering processes. Renesas confirms environmental compliance in its product documentation and specifies that all HZK Series devices manufactured after 2006 conform to EU RoHS standards. The LLD package contains no lead in terminations or molding compound, and the HZK5CLL-JTR is rated for peak reflow temperatures up to 260°C per J-STD-020.
HZK5CLL-JTR 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:
- -
HZK5CLL-JTR FAQ
1.How can I place an order for HZK5CLL-JTR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK5CLL-JTR 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 HZK5CLL-JTR reliable?
The price and inventory of HZK5CLL-JTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK5CLL-JTR is usually 5 days.
3.What payment methods are accepted for HZK5CLL-JTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK5CLL-JTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK5CLL-JTR?
HZK5CLL-JTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK5CLL-JTR 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 HZK5CLL-JTR?
For technical support, including HZK5CLL-JTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK5CLL-JTR requirements.
6.How does Aetrix verify that HZK5CLL-JTR is sourced from the original manufacturer or authorized distributors?
All HZK5CLL-JTR 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 HZK5CLL-JTR meets industry standards.
7.What is the process for return or replacement of HZK5CLL-JTR?
All HZK5CLL-JTR units undergo pre-shipment inspection (PSI). If there is an issue with HZK5CLL-JTR, 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 HZK5CLL-JTR part is unused and in its original packaging.
Return procedure for HZK5CLL-JTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZK5CLL-JTR Tags
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MM5Z5V1ST1G
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