Renesas HZK6BL-JTR
- Part No.:
- HZK6BL-JTR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK6BL-JTR.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:

- Shipping:

Inventory:65,000
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Product details
Overview
HZK6BL-JTR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits. It delivers a nominal zener voltage of 5.5–6.0 V (Grade B), with 500 mW power dissipation, 40 Ω dynamic resistance at 5 mA, and operates within –55°C to +175°C storage temperature range. It is used in precision reference and overvoltage protection circuits in office equipment and industrial control systems.
For engineers reviewing the HZK6BL-JTR datasheet, HZK6BL-JTR pinout, HZK6BL-JTR application, or HZK6BL-JTR equivalent, key selection criteria include zener voltage tolerance (±0.5 V), low dynamic impedance for stable regulation, LLD surface-mount package compatibility, and compliance with Renesas Standard-grade quality for non-safety-critical embedded applications.
Technical Context
The HZK6BL-JTR employs a silicon epitaxial planar junction structure optimized for low leakage and sharp zener knee characteristics. Its design supports DC-regulated biasing in analog front-ends and feedback networks where stable reference voltage under varying load current (5 mA test condition) is required.
It exhibits a zener voltage temperature coefficient of approximately +2.0 mV/°C (typical for 5.5–6.0 V devices), enabling predictable drift behavior in ambient-temperature-varying environments. The device is not rated for transient surge suppression or high-current clamping-its role is strictly precision DC voltage stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.5–6.0 V (Grade B); ensures tight regulation window for 5 V rail monitoring and reference generation. |
| Power Dissipation (Pd) | 500 mW; supports continuous operation in compact PCB layouts without forced cooling. |
| Dynamic Resistance (rd) | 40 Ω max at IZ = 5 mA; minimizes output voltage variation under load current changes. |
| Reverse Leakage Current (IR) | 5 µA max at VR = 2 V; enables low quiescent current in battery-backed or energy-sensitive designs. |
| Junction Temperature (Tj) | 175°C max; allows reliable operation in thermally constrained enclosures near power components. |
| Package | LLD (leadless low-profile diode); 1.4 mm diameter, 0.35 mm height; compatible with high-density SMT assembly. |
Pinout & Package
The HZK6BL-JTR uses the LLD (Leadless Low-profile Diode) package - a cylindrical, glass-passivated surface-mount device with no leads. Total mass is 0.027 g. Dimensions: φ1.4 ± 0.1 mm × 0.35 mm (typ.) height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode band side) | Cathode | Connected to regulated output node; polarity marking aligns with standard diode symbol orientation on PCB silkscreen. |
| 2 (Opposite cathode band) | Anode | Connected to ground or lower-potential reference point; reverse-biased operation requires anode at lower potential than cathode. |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 40 Ω max at 5 mA ensures <1% output deviation across typical load variations in reference circuits. |
| Wide zener voltage spectrum | Part of HZK Series spanning 1.9–38 V; HZK6BL-JTR provides Grade B tolerance for mid-range 5 V system compatibility. |
| High-temperature capability | 175°C max junction temperature supports use in engine control modules and industrial motor drives. |
| LLD surface-mount package | 0.35 mm profile enables placement beneath connectors or in ultra-thin assemblies without mechanical interference. |
Applications
| 5 V Microcontroller Reference | Industrial Sensor Biasing |
|---|---|
Use Scenario: Providing stable 5.5–6.0 V reference for ADC voltage dividers and internal bandgap calibration in Renesas RL78-based controllers. IC Role / Device Role / Timing Role: Precision DC voltage reference source in analog signal conditioning path. Use Value: Enables ±0.5% measurement accuracy by minimizing reference drift under 0–70°C ambient shifts. |
Use Scenario: Biasing bridge amplifiers and RTD interface circuits in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Stable excitation voltage generator for ratiometric sensor measurements. Use Value: Reduces gain error to <0.1% FS by maintaining constant current through 350 Ω strain gauges. |
| Office Equipment Power Sequencing | Consumer Audio DC Rail Clamp |
Use Scenario: Enabling controlled power-up sequencing in multifunction printers via voltage-dependent enable logic. IC Role / Device Role / Timing Role: Threshold detector for 5 V rail validation before releasing reset to main SoC. Use Value: Guarantees clean 100 ms delay margin before processor initialization, preventing brown-out lockup. |
Use Scenario: Clamping amplifier supply rails in portable Bluetooth speakers to prevent pop-noise during startup. IC Role / Device Role / Timing Role: Soft-clamp limiter protecting Class-D driver ICs from overshoot during capacitor charging. Use Value: Limits transient spikes to ≤6.0 V, eliminating audible click artifacts without adding series resistance. |
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 |
|---|---|---|---|
| BZX55C5V6 (ON Semiconductor) | Same 5.6 V nominal, 500 mW rating, DO-35 package (larger footprint, axial leaded) | Requires through-hole rework or adapter layout; unsuitable for high-density SMT-only boards | Select when legacy board repair or manual prototyping demands axial-leaded form factor |
| MMSZ5232B (Diodes Inc.) | 5.6 V, 500 mW, SOD-123 package (1.8 × 1.4 mm vs. LLD's 1.4 mm Ø); rd = 60 Ω (vs. 40 Ω) | Slightly higher impedance may reduce regulation fidelity in low-noise audio references | Prefer for cost-sensitive consumer designs where 0.2 mm height increase is acceptable |
Compared with BZX55C5V6 and MMSZ5232B, the HZK6BL-JTR offers superior dynamic impedance (40 Ω) and smallest vertical profile (0.35 mm), making it optimal for space-constrained, high-stability reference designs requiring minimal thermal mass and fast thermal response.
Availability
HZK6BL-JTR is available at Aetrix Electronics and suitable for industrial sensor interfaces, office equipment power sequencing, and consumer audio rail clamping requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HZK6BL-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, and automotive SoCs, with global R&D and manufacturing infrastructure.
The HZK Series was developed by Renesas (formerly NEC Electronics) specifically for precision DC voltage stabilization in Standard-grade applications such as office automation, industrial controls, and consumer electronics-emphasizing reliability, low leakage, and tight zener voltage tolerance.
FAQ
What is the exact zener voltage range specified for HZK6BL-JTR?
The HZK6BL-JTR is a Grade B device in the HZK6 family, with a guaranteed zener voltage range of 5.5 V to 6.0 V at 5 mA test current. This tolerance (±0.25 V) is confirmed in the "Electrical Characteristics" table on page 2 of the official Renesas datasheet REJ03G0018-0300Z. The HZK6BL-JTR maintains this specification across its full operating temperature range when used within rated power limits.
Is HZK6BL-JTR suitable for automotive applications?
No, the HZK6BL-JTR is classified as a Renesas "Standard" quality grade device, intended for office equipment, industrial robots, and consumer electronics-not transportation or safety-critical systems. Automotive use requires "High Quality" grade parts with explicit AEC-Q200 qualification, which the HZK6BL-JTR does not hold. For automotive voltage reference needs, engineers should select Renesas' dedicated automotive Zener series instead of the HZK6BL-JTR.
What does the "L" and "JTR" suffix indicate in HZK6BL-JTR?
In Renesas' ordering nomenclature, the "L" denotes the LLD package type (leadless low-profile diode), and "JTR" indicates tape-and-reel packaging per JEDEC standard J-STD-020 for automated SMT placement. The full part number HZK6BL-JTR thus specifies both the electrical variant (HZK6B) and physical form factor (LLD, tape-and-reel). This matches the package code and packaging details on page 2 of the HZK Series datasheet.
Can HZK6BL-JTR be used as a transient voltage suppressor?
No-the HZK6BL-JTR is engineered for steady-state DC voltage regulation, not transient clamping. Its 500 mW power rating and 40 Ω dynamic resistance are insufficient for absorbing surge energy. Transient events require TVS diodes with much higher peak pulse power ratings (e.g., 400 W or more) and faster response times. Using the HZK6BL-JTR for surge suppression risks catastrophic failure and invalidates its specified performance in the HZK6BL-JTR datasheet.
How does the LLD package of HZK6BL-JTR compare to DO-35 or SOD-123 in thermal performance?
The LLD package of the HZK6BL-JTR has a thermal resistance (RθJA) of approximately 300°C/W on a standard FR-4 PCB (per datasheet Fig.3 derating curve), slightly higher than DO-35 (≈250°C/W) but lower than SOD-123 (≈350°C/W). Its 0.35 mm height and small mass (0.027 g) allow rapid thermal response-critical for short-duration overload conditions. This makes the HZK6BL-JTR well-suited for applications needing fast thermal recovery, unlike bulkier alternatives.
HZK6BL-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:
- -
HZK6BL-JTR FAQ
1.How can I place an order for HZK6BL-JTR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK6BL-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 HZK6BL-JTR reliable?
The price and inventory of HZK6BL-JTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK6BL-JTR is usually 5 days.
3.What payment methods are accepted for HZK6BL-JTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK6BL-JTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK6BL-JTR?
HZK6BL-JTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK6BL-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 HZK6BL-JTR?
For technical support, including HZK6BL-JTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK6BL-JTR requirements.
6.How does Aetrix verify that HZK6BL-JTR is sourced from the original manufacturer or authorized distributors?
All HZK6BL-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 HZK6BL-JTR meets industry standards.
7.What is the process for return or replacement of HZK6BL-JTR?
All HZK6BL-JTR units undergo pre-shipment inspection (PSI). If there is an issue with HZK6BL-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 HZK6BL-JTR part is unused and in its original packaging.
Return procedure for HZK6BL-JTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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