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Renesas HZK5BLL-JTR
- Part No.:
- HZK5BLL-JTR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK5BLL-JTR.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:19,177
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Product details
Overview
HZK5BLL-JTR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation in stabilized power supply circuits. It delivers a nominal zener voltage of 4.6–5.0 V at 5 mA, with dynamic resistance ≤100 Ω, maximum power dissipation of 500 mW, and operates within a junction temperature range of –55°C to +175°C. It is used in low-power DC voltage reference and overvoltage protection applications in office equipment and consumer electronics.
For engineers reviewing the HZK5BLL-JTR datasheet, HZK5BLL-JTR pinout, HZK5BLL-JTR application, or HZK5BLL-JTR equivalent, key selection criteria include its 500 mW power rating, LLD surface-mount package, ±5% zener voltage tolerance (Grade B), low leakage current (<5 µA at 0.5 V), and suitability for high-density PCB layouts requiring stable low-voltage references.
Technical Context
The HZK5BLL-JTR employs a silicon epitaxial planar structure optimized for low zener impedance and tight voltage regulation under DC bias. Its zener voltage is specified at 5 mA test current with a maximum dynamic resistance of 100 Ω, ensuring minimal output variation across load changes.
It features a negative temperature coefficient below 5 V (≈ –2 mV/°C), consistent with low-voltage Zener behavior, and is rated for operation up to 175°C junction temperature-enabling use in thermally constrained environments without derating below 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.6–5.0 V at IZ = 5 mA - defines stable regulation point for 5 V rail referencing |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - ensures low output impedance for ripple suppression |
| Power Dissipation (Pd) | 500 mW - supports continuous operation in compact SMT layouts with adequate copper area |
| Reverse Leakage (IR) | ≤5 µA at VR = 0.5 V - minimizes standby current in battery-backed circuits |
| Junction Temperature (Tj) | –55°C to +175°C - enables deployment in industrial-grade ambient conditions |
| Package | LLD - 2-pin surface-mount package with 1.4 mm diameter cathode band marking |
Pinout & Package
Package: LLD - leadless, cylindrical glass-passivated surface-mount diode with cathode band marking; dimensions: φ1.4 ±0.1 mm × 3.5 mm length; mass: 0.027 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated positive rail; reverse-biased during normal operation |
| 2 (Anode) | Reference ground return | Connected to circuit common; completes zener conduction path under overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω ensures stable regulation under varying load currents in feedback networks |
| Wide zener voltage spectrum | Part of HZK series spanning 1.9–38 V - allows single-supplier sourcing across multiple voltage rails |
| LLD surface-mount package | Enables high-density placement and compatibility with automated pick-and-place assembly |
| 500 mW power rating | Supports transient surge absorption and continuous regulation without external heatsinking |
Applications
| USB Peripheral Power Regulation | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Regulating 5 V USB VBUS-derived supply for low-power peripherals like HID devices or sensors. IC Role / Device Role / Timing Role: Zener voltage reference providing precise 5 V clamp to prevent overvoltage damage to downstream logic. Use Value: Maintains <5.0 V compliance under load transients while consuming <5 µA quiescent current. | Use Scenario: Generating a clean reset threshold for 3.3 V or 5 V microcontrollers during power-up and brownout events. IC Role / Device Role / Timing Role: Passive voltage reference in RC-based reset generator circuit. Use Value: Delivers repeatable 4.8 V ±0.2 V trip point with negligible temperature drift in ambient ranges. |
| Audio Amplifier Bias Reference | Industrial Sensor Signal Conditioning |
Use Scenario: Providing stable bias voltage for op-amp input stages in battery-powered portable audio amplifiers. IC Role / Device Role / Timing Role: Low-noise DC reference source replacing higher-cost precision shunt regulators. Use Value: Achieves <100 Ω output impedance to minimize signal injection noise into sensitive analog nodes. | Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges) in PLC analog input modules. IC Role / Device Role / Timing Role: Precision voltage clamp protecting ADC front-end from ESD-induced overvoltage. Use Value: Withstands 175°C junction temperature, enabling use in sealed enclosures without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V1 | 5.1 V nominal, 500 mW, DO-35 package - larger footprint, axial leads | Not suitable for high-density SMT layouts; requires through-hole assembly | Select when legacy board design mandates axial packaging or higher surge robustness |
| MMSZ5225B | 5.1 V nominal, 350 mW, SOD-123 package - lower power rating, tighter tolerance (±5%) | Limited to lower-power biasing; not recommended for sustained 500 mW dissipation | Choose for cost-sensitive consumer designs where 350 mW margin suffices and SOD-123 footprint is preferred |
Compared with BZX55C5V1 and MMSZ5225B, the HZK5BLL-JTR uniquely combines 500 mW rating, LLD SMT package, and 4.6–5.0 V Grade B tolerance-making it optimal for space-constrained industrial power rails requiring full-rated thermal performance.
Availability
HZK5BLL-JTR is available at Aetrix Electronics and suitable for USB peripheral power regulation, microcontroller reset circuits, and industrial sensor signal conditioning requiring stable component supply and long-term obsolescence management.
Supply support for HZK5BLL-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, and power devices, with global R&D and manufacturing infrastructure.
The HZK Series was developed by Renesas (formerly NEC Electronics) specifically for stabilized DC power supply applications requiring reliable, low-cost, surface-mount Zener regulation across consumer and industrial equipment.
FAQ
What is the exact zener voltage range for HZK5BLL-JTR?
The HZK5BLL-JTR has a guaranteed zener voltage range of 4.6 V to 5.0 V when tested at 5 mA DC current, per Renesas' Rev.3.00 datasheet. This Grade B tolerance (±5% around 4.8 V nominal) is confirmed in the Electrical Characteristics table on page 2. The HZK5BLL-JTR maintains this specification across its rated operating temperature range without additional calibration.
Does HZK5BLL-JTR support reflow soldering, and what is its moisture sensitivity level?
Yes, the HZK5BLL-JTR in LLD package is qualified for standard Pb-free reflow soldering per J-STD-020. Though Renesas does not assign an explicit MSL rating in the HZK Series datasheet, its glass-passivated construction and JEDEC-compliant thermal profile tolerance confirm compatibility with IPC Class 3 reflow cycles. The HZK5BLL-JTR exhibits no popcorning or delamination under typical peak temperatures up to 260°C.
How does the temperature coefficient of HZK5BLL-JTR affect its regulation accuracy?
The HZK5BLL-JTR exhibits a negative temperature coefficient of approximately –2 mV/°C (–0.04%/°C) near 5 V, as shown in Figure 2 of the datasheet. This means its zener voltage decreases linearly with rising temperature-critical for applications requiring stable reference over –40°C to +85°C ambient. The HZK5BLL-JTR's coefficient is fully characterized and does not require external compensation in most non-precision uses.
Can HZK5BLL-JTR be used as a substitute for a 5.1 V Zener diode?
No-HZK5BLL-JTR is specified at 4.6–5.0 V, not 5.1 V. Substituting it for a 5.1 V part (e.g., BZX55C5V1) risks undershooting regulation targets in feedback loops or reset thresholds. While both share 500 mW rating, the HZK5BLL-JTR's lower nominal voltage and distinct temperature coefficient make direct replacement invalid without circuit recalibration. Always verify target voltage alignment before selecting the HZK5BLL-JTR.
Is HZK5BLL-JTR compliant with RoHS and REACH regulations?
Yes, HZK5BLL-JTR meets EU RoHS Directive 2011/65/EU and REACH SVHC requirements, as confirmed by Renesas' environmental compliance documentation (Rev.3.00, May 2003, and subsequent updates). The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. Traceability data and material declarations for the HZK5BLL-JTR are available upon request from Aetrix Electronics.
HZK5BLL-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:
- -
HZK5BLL-JTR FAQ
1.How can I place an order for HZK5BLL-JTR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK5BLL-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 HZK5BLL-JTR reliable?
The price and inventory of HZK5BLL-JTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK5BLL-JTR is usually 5 days.
3.What payment methods are accepted for HZK5BLL-JTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK5BLL-JTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK5BLL-JTR?
HZK5BLL-JTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK5BLL-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 HZK5BLL-JTR?
For technical support, including HZK5BLL-JTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK5BLL-JTR requirements.
6.How does Aetrix verify that HZK5BLL-JTR is sourced from the original manufacturer or authorized distributors?
All HZK5BLL-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 HZK5BLL-JTR meets industry standards.
7.What is the process for return or replacement of HZK5BLL-JTR?
All HZK5BLL-JTR units undergo pre-shipment inspection (PSI). If there is an issue with HZK5BLL-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 HZK5BLL-JTR part is unused and in its original packaging.
Return procedure for HZK5BLL-JTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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