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Renesas HZS22-3LTA-E
- Part No.:
- HZS22-3LTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS22-3LTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
HZS22-3LTA-E from Renesas Electronics is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog and stabilized power supply circuits, with a nominal zener voltage of 22.3 V to 23.3 V, dynamic resistance of 20.0 Ω at 0.5 mA test current, and maximum power dissipation of 400 mW in the MHD package.
For engineers reviewing the HZS22-3LTA-E datasheet, HZS22-3LTA-E pinout, HZS22-3LTA-E application, or HZS22-3LTA-E equivalent, this device is selected for noise-sensitive reference designs where low zener impedance, tight voltage tolerance, and thermal stability across −55°C to +175°C storage range are critical.
Technical Context
The HZS22-3LTA-E operates as a two-terminal shunt regulator with DC-tested zener breakdown characteristics, optimized for low-noise performance-exhibiting approximately 1/3–1/10 the noise level of the legacy HZ series. Its junction temperature rating of 200°C supports high-reliability operation in thermally constrained environments.
Designed for 5 mm-pitch high-speed automatic insertion, the device uses a silicon planar structure with low leakage current (≤1 μA at VR = 18.0 V) and exhibits a negative zener voltage temperature coefficient in the 22 V range, confirmed by published γZ vs. VZ curves in the official datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.3 V (min) to 23.3 V (max) at IZ = 0.5 mA - defines stable regulation window for mid-range reference applications |
| Dynamic Resistance (rd) | 20.0 Ω max at IZ = 0.5 mA - ensures minimal output impedance for ripple rejection in feedback references |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal design limit for PCB trace width and copper pour requirements |
| Reverse Current (IR) | ≤1 μA at VR = 18.0 V - enables ultra-low standby leakage in battery-backed or energy-efficient systems |
| Junction Temperature (Tj) | 200°C max - allows operation in high-ambient industrial environments without derating below 125°C ambient |
| Storage Temperature | −55°C to +175°C - supports extended reliability qualification for automotive under-hood or industrial control modules |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), molded plastic case with axial leads, 2.0 mm diameter, 26.0 mm body length, 0.4 mm lead diameter, 2.4 mm lead spacing - compatible with standard 5 mm-pitch automated insertion equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Regulated Output Node | Connected to positive rail in shunt configuration; carries full load current when regulating |
| 2 (Anode) | Reference Ground Node | Connected to system ground or common return; establishes reference potential for VZ |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | 1/3–1/10 noise vs. HZ series - directly improves SNR in precision ADC references and sensor excitation circuits |
| Tight VZ tolerance | ±0.5 V over 22.3–23.3 V range - reduces calibration overhead in factory-trimmed instrumentation |
| Low zener impedance | 20.0 Ω max - maintains regulation accuracy under varying load currents up to 10 mA |
| High thermal robustness | Tj = 200°C and Tstg = −55°C to +175°C - supports uninterrupted operation in wide-temperature industrial PLCs |
| Automated assembly compatibility | MHD package with 5 mm pitch - eliminates manual placement cost in high-volume power supply manufacturing |
Applications
| Industrial Power Reference | Precision Sensor Excitation |
|---|---|
|
Use Scenario: Providing stable 22.5 V reference for isolated DC-DC converter feedback loops in programmable logic controllers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise error amplifier setpoint. Use Value: Low dynamic resistance (20.0 Ω) minimizes regulation error under transient load steps, improving output voltage stability. |
Use Scenario: Biasing bridge-type pressure sensors in HVAC differential pressure transmitters. IC Role / Device Role / Timing Role: Low-noise excitation source replacing op-amp-based references. Use Value: 1/10 noise vs. HZ series reduces RMS input-referred noise floor, enabling sub-0.1% FS measurement resolution. |
| Test Equipment Calibration | Medical Diagnostic Power Supply |
|
Use Scenario: Embedded reference in portable multimeter front-end for autoranging voltage measurement. IC Role / Device Role / Timing Role: Primary voltage standard for ADC gain calibration at 22 V range. Use Value: Tight VZ tolerance (±0.5 V) eliminates per-unit trimming, reducing BOM and test time. |
Use Scenario: Auxiliary bias rail stabilization in ultrasound imaging power modules. IC Role / Device Role / Timing Role: Secondary reference for analog front-end LDO enable threshold. Use Value: −55°C to +175°C storage rating ensures long-term parametric stability during sterilization cycles and field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4748A (ON Semiconductor) | Zener voltage 22 V ±5%, rd = 23 Ω, Pd = 1 W, DO-41 package | Higher power but larger footprint; higher noise than HZS22-3LTA-E | Select when >400 mW dissipation required; avoid in noise-critical signal chains |
| BZX85C22 (Vishay) | Zener voltage 22 V ±5%, rd = 25 Ω, Pd = 1.3 W, DO-41 package | Loose tolerance and higher impedance; no low-noise characterization | Acceptable for non-precision supplies; not suitable for metrology-grade references |
Compared with 1N4748A and BZX85C22, the HZS22-3LTA-E delivers superior noise performance and tighter VZ tolerance in a compact MHD package, making it optimal for space-constrained, low-noise industrial and test equipment where regulation fidelity outweighs raw power handling.
Availability
HZS22-3LTA-E is available at Aetrix Electronics and suitable for industrial power reference, precision sensor excitation, test equipment calibration, and medical diagnostic power supply applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for HZS22-3LTA-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 delivering microcontrollers, analog power, and connectivity solutions for industrial, automotive, and infrastructure markets.
The HZS-L Series belongs to Renesas' discrete Zener diode product line, designed specifically for low-noise, high-stability voltage reference applications in industrial automation and test instrumentation.
FAQ
What is the exact zener voltage range specified for HZS22-3LTA-E?
The HZS22-3LTA-E has a guaranteed zener voltage range of 22.3 V (minimum) to 23.3 V (maximum) when tested at IZ = 0.5 mA and Ta = 25°C. This 1.0 V span reflects the "3L" variant designation within the HZS-L family and is tighter than standard ±5% Zener tolerances found in generic parts like 1N4748A.
Does HZS22-3LTA-E support high-temperature operation beyond 125°C ambient?
Yes - while the absolute maximum junction temperature is 200°C, the HZS22-3LTA-E maintains specified electrical characteristics up to 125°C ambient, and its storage temperature rating of −55°C to +175°C confirms suitability for reflow soldering and extended thermal cycling in industrial control modules.
Is the MHD package of HZS22-3LTA-E compatible with automated pick-and-place equipment?
No - the MHD package is an axial-leaded through-hole device designed for high-speed automatic insertion (5 mm pitch), not surface-mount pick-and-place. It requires wave or selective soldering, not reflow. The JEITA code GRZZ0002ZC-A and Renesas documentation explicitly confirm through-hole mounting only.
How does the noise performance of HZS22-3LTA-E compare to standard Zener diodes?
HZS22-3LTA-E achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series, as stated in the official Renesas datasheet. This low-noise characteristic stems from its silicon planar construction and optimized doping profile, making it suitable for precision analog references where broadband noise directly impacts measurement resolution.
Can HZS22-3LTA-E be used as a direct replacement for HZS22-2L or HZS22-1L in existing designs?
Yes - all HZS22-xL variants share identical MHD packaging, pinout, and thermal ratings; only the zener voltage center point differs (22.3–23.3 V for -3L, 21.6–22.6 V for -2L, 20.9–21.9 V for -1L). Designers may substitute HZS22-3LTA-E where tighter upper-bound regulation is required, provided the circuit accommodates the higher nominal VZ.
HZS22-3LTA-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:
- -
HZS22-3LTA-E FAQ
1.How can I place an order for HZS22-3LTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS22-3LTA-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 HZS22-3LTA-E reliable?
The price and inventory of HZS22-3LTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS22-3LTA-E is usually 5 days.
3.What payment methods are accepted for HZS22-3LTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS22-3LTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS22-3LTA-E?
HZS22-3LTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS22-3LTA-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 HZS22-3LTA-E?
For technical support, including HZS22-3LTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS22-3LTA-E requirements.
6.How does Aetrix verify that HZS22-3LTA-E is sourced from the original manufacturer or authorized distributors?
All HZS22-3LTA-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 HZS22-3LTA-E meets industry standards.
7.What is the process for return or replacement of HZS22-3LTA-E?
All HZS22-3LTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS22-3LTA-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 HZS22-3LTA-E part is unused and in its original packaging.
Return procedure for HZS22-3LTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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