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Renesas HZK5ALL-JTR
- Part No.:
- HZK5ALL-JTR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK5ALL-JTR.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:17,829
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Product details
Overview
HZK5ALL-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 4.5 V (midpoint of 4.3–4.7 V range, Grade A), with 500 mW power dissipation, low dynamic resistance (≤100 Ω at 5 mA), and operates within –55°C to +175°C storage temperature range. It is used in office equipment and industrial control systems requiring precise low-voltage reference stability.
For engineers reviewing the HZK5ALL-JTR datasheet, HZK5ALL-JTR pinout, HZK5ALL-JTR application, or HZK5ALL-JTR equivalent, key selection criteria include its 4.3–4.7 V zener voltage tolerance (Grade A), 100 Ω max dynamic resistance at 5 mA, LLD surface-mount package footprint, and suitability for DC-stabilized biasing in analog sensor interfaces and microcontroller reset circuits.
Technical Context
The HZK5ALL-JTR functions as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents via controlled reverse-bias breakdown. Its silicon epitaxial planar construction ensures low leakage current (≤5 µA at 0.5 V) and predictable zener impedance behavior under DC test conditions.
It is rated for 500 mW power dissipation on PCB mounting, with junction temperature limited to 175°C and a zener voltage temperature coefficient of approximately –2.5 mV/°C (typical for ~4.5 V devices per Fig.2). No series resistor or external driver circuitry is required for basic voltage reference use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.3–4.7 V (Grade A, tested at 5 mA - defines stable regulation range for low-voltage references) |
| Power Dissipation (Pd) | 500 mW (maximum continuous DC power on PCB - sets thermal design margin for board-level layout) |
| Dynamic Resistance (rd) | ≤100 Ω (at 5 mA - determines output impedance and load regulation sensitivity) |
| Reverse Current (IR) | ≤5 µA (at VR = 0.5 V - ensures minimal standby leakage in battery-backed circuits) |
| Junction Temperature (Tj) | 175°C maximum - enables operation in high-ambient industrial environments without derating) |
| Package | LLD (leadless, surface-mount, 2-pin - supports automated high-density assembly with 1.4 mm diameter footprint) |
Pinout & Package
Package: LLD - leadless, cylindrical, glass-passivated silicon diode package with cathode band marking; dimensions: φ1.4 ± 0.1 mm × 3.5 mm height; mass: 0.027 g; JEDEC/JEITA unregistered; optimized for reflow soldering and space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode Band) | Zener Cathode | Connected to higher-potential node; reverse-bias terminal where regulated voltage appears referenced to anode |
| 2 (Anode) | Zener Anode | Connected to circuit ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω at 5 mA - minimizes output voltage shift under varying load current in precision references |
| Wide zener voltage spectrum | 1.9–38 V coverage across HZK family - enables single-supplier sourcing for multi-rail systems |
| LLD surface-mount package | φ1.4 mm footprint - reduces PCB area by >60% vs. DO-35, enabling high-density power management layouts |
| High-temperature operation | 175°C max junction temperature - supports use in under-hood automotive modules and industrial motor drives |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit ADC inputs in temperature and pressure transmitters operating at 5 V supply. IC Role / Device Role / Timing Role: Zener diode provides fixed 4.5 V reference to ADC VREF pin, compensating for supply ripple and drift. Use Value: Enables ±0.5 LSB linearity over –40°C to +85°C ambient due to tight 4.3–4.7 V tolerance and low tempco. | Use Scenario: Generating clean, noise-immune reset threshold for ARM Cortex-M0+ MCU in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt regulator holds reset line low until 4.5 V rail stabilizes post-power-up. Use Value: Eliminates need for dedicated reset IC; 5 µA max leakage ensures <1 µA standby current in sleep mode. |
| Low-Power Analog Front-End Biasing | DC-DC Converter Feedback Reference |
Use Scenario: Providing stable bias voltage to op-amp input stages in battery-powered gas detection modules. IC Role / Device Role / Timing Role: Zener diode supplies 4.5 V bias to rail-to-rail input amplifiers driving electrochemical sensors. Use Value: 100 Ω dynamic resistance ensures <1 mV output shift across 0–100 µA load variation, preserving sensor accuracy. | Use Scenario: Setting feedback voltage for adjustable buck converter regulating 3.3 V from 12 V input in network switch power supplies. IC Role / Device Role / Timing Role: Forms lower leg of resistive divider tied to TL431 reference input, fixing output setpoint. Use Value: Tight 4.3–4.7 V tolerance allows ±1.5% output voltage accuracy without trimming, reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4732A (ON Semiconductor) | 4.7 V nominal (4.46–4.94 V), 1 W rating, DO-41 package (5.2 mm length) | Higher power capability but larger footprint; less suitable for ultra-dense SMT layouts | Select when >500 mW dissipation or through-hole assembly is required |
| BZX55-C4V7 (Vishay) | 4.7 V nominal (4.4–5.0 V), 500 mW, DO-35 package (4.1 mm length) | Same power rating but axial leaded; requires manual or wave-solder process, not reflow-compatible | Select when legacy through-hole compatibility or higher surge robustness is prioritized over miniaturization |
Compared with 1N4732A and BZX55-C4V7, the HZK5ALL-JTR offers identical 500 mW rating and comparable voltage tolerance but uniquely integrates LLD's 1.4 mm diameter footprint-reducing PCB area by 75% versus DO-35 and enabling fully automated placement in compact IoT edge nodes.
Availability
HZK5ALL-JTR is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller reset circuits, and low-power analog front-end biasing requiring stable component supply and long-term obsolescence mitigation.
Supply support for HZK5ALL-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 system-on-chip solutions for industrial, automotive, and enterprise applications.
The HZK Series was developed specifically for cost-sensitive, high-reliability voltage reference and stabilization tasks in standard-grade equipment-including office automation, test instrumentation, and consumer electronics-emphasizing tight parametric control and surface-mount manufacturability.
FAQ
What is the exact zener voltage range specified for HZK5ALL-JTR?
The HZK5ALL-JTR is a Grade A device in the HZK5 series, with a guaranteed zener voltage range of 4.3 V to 4.7 V when tested at 5 mA DC current. This 0.4 V span reflects tight process control for applications demanding stable low-voltage references, such as sensor biasing and MCU reset thresholds. The midpoint value of 4.5 V is commonly used in design calculations for HZK5ALL-JTR.
Does HZK5ALL-JTR support reflow soldering, and what is its maximum soldering temperature profile?
Yes, the HZK5ALL-JTR uses the LLD package, which is qualified for standard Pb-free reflow soldering per J-STD-020. Its glass-passivated silicon die and epoxy-molded body withstand peak temperatures up to 260°C for ≤10 seconds. The HZK5ALL-JTR must be mounted with the cathode band oriented correctly per the PCB silkscreen to ensure proper reverse-bias operation.
What is the maximum reverse leakage current for HZK5ALL-JTR, and under what condition is it measured?
The maximum reverse leakage current for HZK5ALL-JTR is 5 µA, measured at a reverse voltage (VR) of 0.5 V and ambient temperature of 25°C. This low leakage supports energy-efficient designs, especially in battery-powered applications where standby current must remain below 1 µA - achievable when HZK5ALL-JTR is paired with appropriate series limiting resistors.
Can HZK5ALL-JTR be used in place of a 4.7 V Zener like 1N4732A in existing designs?
No - while both regulate near 4.7 V, HZK5ALL-JTR is Grade A (4.3–4.7 V) and 1N4732A is nominal 4.7 V (4.46–4.94 V); more critically, their packages differ fundamentally: HZK5ALL-JTR uses LLD (1.4 mm diameter SMT), whereas 1N4732A uses DO-41 (5.2 mm axial leads). Direct substitution would require PCB redesign. HZK5ALL-JTR is not a drop-in replacement for 1N4732A.
Is HZK5ALL-JTR compliant with RoHS and REACH regulations?
Yes, HZK5ALL-JTR complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed by Renesas Electronics' material declarations. The LLD package contains no lead in solderable terminations (Pb-free matte tin finish), and all homogeneous materials meet threshold limits for restricted substances. Full compliance documentation for HZK5ALL-JTR is available upon request from Aetrix Electronics.
HZK5ALL-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:
- -
HZK5ALL-JTR FAQ
1.How can I place an order for HZK5ALL-JTR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK5ALL-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 HZK5ALL-JTR reliable?
The price and inventory of HZK5ALL-JTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK5ALL-JTR is usually 5 days.
3.What payment methods are accepted for HZK5ALL-JTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK5ALL-JTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK5ALL-JTR?
HZK5ALL-JTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK5ALL-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 HZK5ALL-JTR?
For technical support, including HZK5ALL-JTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK5ALL-JTR requirements.
6.How does Aetrix verify that HZK5ALL-JTR is sourced from the original manufacturer or authorized distributors?
All HZK5ALL-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 HZK5ALL-JTR meets industry standards.
7.What is the process for return or replacement of HZK5ALL-JTR?
All HZK5ALL-JTR units undergo pre-shipment inspection (PSI). If there is an issue with HZK5ALL-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 HZK5ALL-JTR part is unused and in its original packaging.
Return procedure for HZK5ALL-JTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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