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Renesas HZK6ALTR-S-E
- Part No.:
- HZK6ALTR-S-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK6ALTR-S-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:13,571
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Product details
Overview
HZK6ALTR-S-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for voltage regulation and stabilization in low-power supply circuits, with a nominal zener voltage of 5.5 V (Grade B), 400 mW power dissipation, 80 Ω dynamic resistance at 0.5 mA, and operation up to 175°C junction temperature - used in precision reference and biasing applications within office equipment and industrial control systems.
For engineers reviewing the HZK6ALTR-S-E datasheet, HZK6ALTR-S-E pinout, HZK6ALTR-S-E application, or HZK6ALTR-S-E equivalent, key selection criteria include zener voltage tolerance (±0.5 V), low leakage current (≤1 µA at 2.0 V), thermal coefficient behavior (−2.0 mV/°C), LLD surface-mount package compatibility, and compliance with Renesas "Standard" quality grade for non-safety-critical electronics.
Technical Context
The HZK6ALTR-S-E operates as a two-terminal voltage reference device using controlled avalanche and zener breakdown mechanisms. Its electrical behavior is characterized by stable reverse-biased conduction above 5.5 V with minimal dynamic impedance (80 Ω) and low temperature drift (−2.0 mV/°C), enabling accurate DC level setting in analog signal chains and power rail monitoring.
Designed for surface-mount assembly on PCBs with glass-epoxy substrates, it relies on thermal conduction through its LLD package (1.4 mm diameter, 0.027 g mass) and requires derating above 25°C ambient per the defined Pd vs. Ta curve. It is not rated for automotive or safety-critical use and carries Renesas' "Standard" quality classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.5 V (Grade B, min 5.5 V / max 6.0 V at IZ = 0.5 mA) - defines stable regulation threshold for low-voltage reference design. |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating applies. |
| Dynamic Resistance (rd) | 80 Ω at IZ = 0.5 mA - determines output impedance and load regulation sensitivity in feedback paths. |
| Reverse Leakage Current (IR) | ≤1 µA at VR = 2.0 V - ensures minimal quiescent current draw in standby or high-impedance bias networks. |
| Junction Temperature (Tj) | 175°C - specifies absolute maximum operating temperature limit for reliability under sustained thermal stress. |
| Package Type | LLD (leadless, disc-shaped, 1.4 mm φ) - enables high-density SMT placement and automated pick-and-place compatibility. |
Pinout & Package
The HZK6ALTR-S-E is a two-terminal device in the LLD package: Terminal 1 is Cathode (marked with orange band), Terminal 2 is Anode. No internal circuitry or control logic exists - polarity must be observed during PCB layout to ensure reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side terminal under reverse bias | Connected to regulated voltage node; cathode band orientation must match silkscreen polarity marking. |
| 2 (Anode) | Low-side terminal under reverse bias | Typically tied to ground or common reference; establishes current path direction for zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 80 Ω at 0.5 mA enables tight voltage regulation under varying load conditions in feedback networks. |
| Wide zener voltage range (5.2–38 V) | Supports standardized voltage references across multiple HZK-L Series variants without redesigning board layout. |
| LLD surface-mount package | 1.4 mm diameter footprint allows dense placement in space-constrained consumer and industrial PCBs. |
| Low leakage current | ≤1 µA at 2.0 V minimizes error in high-impedance voltage divider or sensing circuits. |
Applications
| Office Equipment Power Rails | Industrial Sensor Biasing |
|---|---|
|
Use Scenario: Providing stable 5.5 V reference for microcontroller reset circuits and ADC reference inputs in multifunction printers. IC Role / Device Role / Timing Role: Zener diode functions as passive voltage clamp and precision DC reference source. Use Value: Ensures consistent reset threshold and analog measurement accuracy despite input rail fluctuations up to ±10%. |
Use Scenario: Establishing fixed bias point for bridge-type pressure sensor excitation in factory-floor transmitters. IC Role / Device Role / Timing Role: Acts as low-drift voltage reference for Wheatstone bridge excitation network. Use Value: Maintains sensor output linearity and repeatability over −25°C to +85°C ambient range due to known −2.0 mV/°C tempco. |
| Consumer Audio Signal Conditioning | Test Equipment Calibration Reference |
|
Use Scenario: Stabilizing op-amp bias rails in portable headphone amplifiers to suppress noise and distortion. IC Role / Device Role / Timing Role: Provides clean, low-noise DC offset for dual-supply amplifier stages. Use Value: Reduces 1/f noise contribution and improves THD+N performance by minimizing supply-induced modulation. |
Use Scenario: Serving as traceable secondary reference in handheld multimeter front-end voltage dividers. IC Role / Device Role / Timing Role: Functions as calibrated shunt reference for auto-ranging DC voltage measurement paths. Use Value: Delivers repeatable 5.5 V threshold with ≤0.5 V tolerance, supporting 3½-digit accuracy without active trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V6 (ON Semiconductor) | 5.6 V nominal, 500 mW Pd, DO-35 package (3.5 mm length), ±5% tolerance (vs. HZK6ALTR-S-E's ±0.5 V Grade B spec) | Higher power rating but larger through-hole footprint; less precise voltage tolerance limits use in high-accuracy references. | Select when higher dissipation is needed and PCB real estate allows DO-35 mounting; avoid where <±0.5 V regulation is required. |
| MMSZ5226B (Diodes Inc.) | 5.6 V nominal, SOD-123 package, 500 mW, ±5% tolerance, 100 Ω rd - slightly higher impedance and looser grading than HZK6ALTR-S-E. | Suitable for general-purpose clamping but not recommended for precision biasing where 80 Ω rd and tight VZ spread matter. | Prefer for cost-sensitive, non-critical applications; verify thermal performance on FR-4 vs. glass-epoxy boards per datasheet derating curves. |
Compared with BZX55C5V6 and MMSZ5226B, the HZK6ALTR-S-E offers tighter zener voltage control (±0.5 V), lower dynamic resistance (80 Ω), and a compact LLD package optimized for high-density SMT - making it preferable for precision, space-constrained, and thermally managed designs in Standard-grade equipment.
Availability
HZK6ALTR-S-E is available at Aetrix Electronics and suitable for office equipment power rails, industrial sensor biasing, consumer audio signal conditioning, and test equipment calibration reference requiring stable component supply, long-term obsolescence management, and RoHS-compliant sourcing.
Supply support for HZK6ALTR-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and consumer markets.
The HZK-L Series was developed by Renesas to deliver reliable, low-cost Zener voltage references for stabilized power supplies in Standard-grade applications - emphasizing manufacturability, thermal robustness, and compatibility with high-speed SMT assembly lines.
FAQ
What is the exact zener voltage specification for HZK6ALTR-S-E?
The HZK6ALTR-S-E is a Grade B device with a zener voltage range of 5.5 V to 6.0 V at 0.5 mA test current, centered nominally at 5.5 V. This specification is confirmed in the Renesas HZK-L Series datasheet Rev.3.00 (May 2003), page 2, and applies strictly to the HZK6ALTR-S-E variant under DC test conditions.
Does HZK6ALTR-S-E have a specified temperature coefficient?
Yes, the HZK6ALTR-S-E exhibits a zener voltage temperature coefficient of −2.0 mV/°C, as shown in Figure 2 of the official Renesas datasheet. This negative coefficient is typical for 5–6 V Zener devices and must be accounted for in applications operating across wide ambient ranges.
What does the "TR-S-E" suffix in HZK6ALTR-S-E indicate?
The "TR-S-E" suffix denotes tape-and-reel packaging (TR), standard-grade reliability (S), and lead-free/RoHS-compliant construction (E). This matches Renesas' standard part numbering convention for the HZK-L Series and confirms compliance with EU RoHS Directive requirements.
Can HZK6ALTR-S-E replace HZK6AL in existing designs?
Yes - HZK6ALTR-S-E is the RoHS-compliant, tape-and-reel packaged version of the legacy HZK6AL. Both share identical electrical characteristics, LLD package dimensions, and pinout. No PCB or schematic changes are required for drop-in replacement in new production runs.
Is HZK6ALTR-S-E qualified for automotive applications?
No. The HZK6ALTR-S-E carries Renesas' "Standard" quality grade, which excludes transportation equipment and safety-critical systems. It is not AEC-Q200 qualified and lacks the extended temperature range, qualification testing, and traceability required for automotive use.
HZK6ALTR-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:
- -
HZK6ALTR-S-E FAQ
1.How can I place an order for HZK6ALTR-S-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK6ALTR-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 HZK6ALTR-S-E reliable?
The price and inventory of HZK6ALTR-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 HZK6ALTR-S-E is usually 5 days.
3.What payment methods are accepted for HZK6ALTR-S-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK6ALTR-S-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK6ALTR-S-E?
HZK6ALTR-S-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK6ALTR-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 HZK6ALTR-S-E?
For technical support, including HZK6ALTR-S-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK6ALTR-S-E requirements.
6.How does Aetrix verify that HZK6ALTR-S-E is sourced from the original manufacturer or authorized distributors?
All HZK6ALTR-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 HZK6ALTR-S-E meets industry standards.
7.What is the process for return or replacement of HZK6ALTR-S-E?
All HZK6ALTR-S-E units undergo pre-shipment inspection (PSI). If there is an issue with HZK6ALTR-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 HZK6ALTR-S-E part is unused and in its original packaging.
Return procedure for HZK6ALTR-S-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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