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Renesas HZK6ATR-S-E
- Part No.:
- HZK6ATR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK6ATR-S-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
HZK6ATR-S-E 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 5.2–5.7 V at 5 mA, with dynamic resistance of 40 Ω max, power dissipation up to 500 mW, and operates within –55°C to +175°C storage temperature range. It is used in precision reference circuits for industrial sensors and analog front-ends.
For engineers reviewing the HZK6ATR-S-E datasheet, HZK6ATR-S-E pinout, HZK6ATR-S-E application, or HZK6ATR-S-E equivalent, key selection criteria include zener voltage tolerance (±0.5 V), low leakage current (≤5 µA at VR = 2 V), thermal coefficient (–2 mV/°C typical), surface-mount LLD package compatibility, and junction temperature rating (175°C).
Technical Context
The HZK6ATR-S-E employs a planar epitaxial structure to achieve stable zener breakdown with low dynamic impedance and minimal temperature drift. Its design targets DC voltage reference applications where tight regulation and long-term stability under moderate power stress are required.
It operates exclusively in reverse-bias zener mode with no forward conduction specification provided. The device is rated for 500 mW dissipation on PCB mounting and exhibits a negative temperature coefficient of –2 mV/°C near its 5.5 V nominal point, confirmed in Figure 2 of the official datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.2–5.7 V at IZ = 5 mA - defines stable regulation window for low-noise analog references |
| Dynamic Resistance (rd) | ≤40 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage Current (IR) | ≤5 µA at VR = 2 V - guarantees low quiescent power loss in standby operation |
| Power Dissipation (Pd) | 500 mW at Ta = 25°C - supports continuous operation in compact SMT layouts with adequate copper area |
| Junction Temperature (Tj) | 175°C maximum - enables use in thermally demanding industrial environments without derating |
| Zener Temp. Coefficient (γZ) | –2 mV/°C typical at VZ ≈ 5.5 V - allows predictable drift compensation in temperature-critical references |
Pinout & Package
The HZK6ATR-S-E is housed in an LLD (Leadless Low-profile Diode) surface-mount package per JEITA standards, measuring 1.4 mm diameter × 3.5 mm length with cathode band marking. Mass is 0.027 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-bias terminal | Connected to higher potential node; carries regulated output current during zener conduction |
| 2 (Anode) | Reference/ground terminal | Biased at lower potential; serves as circuit ground reference point for voltage stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 40 Ω max at 5 mA - improves line/load regulation in feedback loops |
| Wide zener voltage spectrum | 1.9–38 V across HZK family - enables single-source procurement for multi-rail designs |
| LLD surface-mount package | 1.4 mm × 3.5 mm footprint - supports high-density PCB layout and automated placement |
| High junction temperature rating | 175°C - eliminates need for thermal derating in enclosed industrial enclosures |
Applications
| Industrial Sensor Reference | Power Supply Feedback Node |
|---|---|
Use Scenario: Precision voltage reference for 4–20 mA current loop transmitters in factory automation systems. IC Role / Device Role / Timing Role: Zener diode providing stable 5.5 V reference for op-amp biasing and ADC reference scaling. Use Value: Maintains ±0.5% output accuracy over –40°C to +85°C ambient due to low tempco and tight VZ tolerance. |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for industrial PLC power modules. IC Role / Device Role / Timing Role: Zener clamping element in optocoupler feedback path to regulate output voltage. Use Value: Enables stable 5.5 V threshold detection with ≤40 Ω dynamic resistance, minimizing feedback delay and ripple sensitivity. |
| Analog Front-End Biasing | Overvoltage Protection Clamp |
Use Scenario: Bias voltage generation for instrumentation amplifiers in medical diagnostic signal conditioning boards. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) zener reference establishing common-mode voltage for differential inputs. Use Value: Prevents input stage saturation by delivering stable 5.5 V with negligible current draw from sensitive analog nodes. |
Use Scenario: Input rail clamp in battery-powered IoT sensor nodes exposed to ESD and transient surges. IC Role / Device Role / Timing Role: Fast-acting shunt protection device limiting voltage spikes to ≤5.7 V before damage occurs. Use Value: Absorbs 500 mW surge energy without degradation, leveraging robust 175°C junction rating for reliability. |
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) | 5.6 V nominal, ±5% tolerance (vs. HZK6ATR-S-E's ±0.5 V), 100 Ω rd, DO-35 package | Higher tolerance and impedance limit use in precision references; through-hole only | Select when cost priority outweighs regulation accuracy and SMT compatibility |
| BZX55C5V6 (Vishay) | 5.6 V nominal, ±5% tolerance, 40 Ω rd, DO-35; RoHS-compliant but no LLD SMT variant | Lacks LLD footprint and tighter grading - unsuitable for high-density PCBs requiring automated assembly | Choose only if legacy through-hole design must be maintained and ±5% VZ is acceptable |
Compared with 1N4732A and BZX55C5V6, the HZK6ATR-S-E offers superior voltage accuracy (±0.5 V vs. ±5%), identical dynamic resistance to BZX55C5V6 but in a space-saving LLD package, and is optimized for modern SMT production lines requiring tight-tolerance references.
Availability
HZK6ATR-S-E is available at Aetrix Electronics and suitable for industrial sensor reference, power supply feedback node, and analog front-end biasing applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for HZK6ATR-S-E 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 infrastructure markets.
The HZK Series was developed by Renesas Electronics specifically for stabilized DC power supply applications requiring precise, low-drift voltage references in compact surface-mount form factors.
FAQ
What is the exact zener voltage range specified for HZK6ATR-S-E?
The HZK6ATR-S-E has a guaranteed zener voltage range of 5.2 V to 5.7 V when tested at IZ = 5 mA and Ta = 25°C, corresponding to Grade A in the HZK6 family. This 0.5 V tolerance enables high-accuracy regulation in analog reference circuits without external trimming.
Is HZK6ATR-S-E compatible with reflow soldering processes?
Yes, the HZK6ATR-S-E uses an LLD package qualified for standard lead-free reflow profiles. Its glass-passivated silicon die and epoxy-molded body withstand peak temperatures up to 260°C for 10 seconds, meeting IPC/JEDEC J-STD-020 requirements for surface-mount assembly.
Does HZK6ATR-S-E have a specified forward voltage drop?
No, the official Renesas datasheet for HZK6ATR-S-E does not specify forward voltage characteristics. The device is characterized and intended solely for reverse-bias zener operation; forward conduction parameters are neither measured nor guaranteed.
What is the thermal resistance from junction to ambient for HZK6ATR-S-E?
The datasheet does not publish a numerical θJA value for HZK6ATR-S-E. However, Figure 3 shows power derating curves for the LLD package on a 15 × 20 × 1.6 mm glass-epoxy PCB, indicating 500 mW is fully usable up to 50°C ambient, then linearly derated to zero at 150°C.
Can HZK6ATR-S-E replace HZK6B or HZK6C in existing designs?
Yes, HZK6ATR-S-E is the modern ordering designation for the HZK6A grade device. It matches the electrical specs (5.2–5.7 V, 40 Ω rd) and LLD package of the original HZK6A, and supersedes legacy markings like HZK6A with updated traceability and RoHS compliance.
HZK6ATR-S-E 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:
- -
HZK6ATR-S-E FAQ
1.How can I place an order for HZK6ATR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK6ATR-S-E 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 HZK6ATR-S-E reliable?
The price and inventory of HZK6ATR-S-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK6ATR-S-E is usually 5 days.
3.What payment methods are accepted for HZK6ATR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK6ATR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK6ATR-S-E?
HZK6ATR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK6ATR-S-E 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 HZK6ATR-S-E?
For technical support, including HZK6ATR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK6ATR-S-E requirements.
6.How does Aetrix verify that HZK6ATR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK6ATR-S-E 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 HZK6ATR-S-E meets industry standards.
7.What is the process for return or replacement of HZK6ATR-S-E?
All HZK6ATR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK6ATR-S-E, 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 HZK6ATR-S-E part is unused and in its original packaging.
Return procedure for HZK6ATR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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