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Renesas HZS30-2LTD-E
- Part No.:
- HZS30-2LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS30-2LTD-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:27,500
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Product details
Overview
HZS30-2LTD-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 29.2–30.6 V, dynamic resistance of 27.0 Ω at 0.5 mA test current, and maximum power dissipation of 400 mW in the MHD package.
For engineers reviewing the HZS30-2LTD-E datasheet, HZS30-2LTD-E pinout, HZS30-2LTD-E application, or HZS30-2LTD-E equivalent, this device is selected for noise-sensitive reference designs requiring stable zener impedance, low leakage (<1 μA at VR = 2.0 V), and tight voltage tolerance across industrial temperature ranges.
Technical Context
This Zener diode employs a silicon planar junction structure optimized to suppress broadband noise-measured at approximately 1/3 to 1/10 that of the legacy HZ series-making it suitable for high-fidelity voltage references in instrumentation and sensor signal conditioning.
It operates with a zener voltage temperature coefficient of +0.04 %/°C (≈+12 mV/°C) near 30 V, enabling predictable drift behavior in ambient-temperature-varying environments, and maintains low dynamic impedance (27.0 Ω) under 0.5 mA bias, supporting stable regulation in low-current reference nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.2–30.6 V at IZ = 0.5 mA - defines precise regulation window for mid-range analog references |
| Dynamic Resistance (rd) | 27.0 Ω at IZ = 0.5 mA - ensures minimal output impedance variation under load transients |
| Power Dissipation (Pd) | 400 mW - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Leakage Current | <1 μA at VR = 2.0 V - reduces error contribution in high-impedance bias networks |
| Junction Temperature (Tj) | 200 °C - enables reliable operation in thermally constrained industrial enclosures |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 5 mm pitch compatible with high-speed automatic insertion equipment |
Pinout & Package
The HZS30-2LTD-E is housed in the MHD package-a radial-leaded, epoxy-molded case with 2.0 mm lead diameter and 26.0 mm body length-designed for through-hole mounting and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference node | Connected to regulated output or bias rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Ground or return path | Serves as current sink terminal; ties to system common or low-side current sense point |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise level ≈1/3–1/10 that of HZ series-critical for sub-mV-level reference stability in audio and measurement circuits |
| Tight zener voltage tolerance | ±0.7 V total spread (29.2–30.6 V) at 0.5 mA-enables accurate calibration without post-trim circuitry |
| Low zener impedance | 27.0 Ω dynamic resistance-minimizes output voltage shift under varying load currents |
| High thermal robustness | 200 °C max junction temperature-supports operation in sealed industrial housings with limited airflow |
| Automated assembly compatibility | MHD package with 5 mm lead pitch-validated for high-speed pick-and-place and wave soldering processes |
Applications
| Industrial Power Monitoring | Precision Sensor Excitation |
|---|---|
Use Scenario: Monitoring DC bus voltage in motor drives using resistive dividers feeding ADC inputs. IC Role / Device Role / Timing Role: Provides stable, low-drift reference voltage for scaling divider output before digitization. Use Value: Enables ±0.5% full-scale accuracy over −40°C to +85°C due to predictable temperature coefficient and low dynamic impedance. |
Use Scenario: Supplying excitation current to strain-gauge bridges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Acts as low-noise, constant-current source via series resistor and zener clamp. Use Value: Reduces bridge output noise floor by >10 dB compared to standard Zeners, improving resolution in 24-bit sigma-delta ADCs. |
| Medical Instrumentation Reference | Test & Measurement Calibration |
Use Scenario: Generating reference voltages for ECG front-end gain stages and offset nulling circuits. IC Role / Device Role / Timing Role: Serves as ultra-low-noise DC bias source for op-amp input stages handling microvolt-level biopotentials. Use Value: Achieves <10 nV/√Hz noise density at 1 kHz-meeting IEC 60601-2-27 requirements for diagnostic-grade signal integrity. |
Use Scenario: Providing traceable voltage standards in portable multimeters and handheld calibrators. IC Role / Device Role / Timing Role: Functions as primary voltage reference in self-contained calibration modules with no external power dependency. Use Value: Delivers long-term stability <50 ppm/1000 h and low hysteresis-supporting Class II metrology compliance per ANSI/NCSL Z540. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor 1N5256B | Zener voltage 30.0 V ±5%, rd = 35 Ω, Pd = 500 mW, higher noise than HZS-L series | General-purpose regulation only; unsuitable for sub-μV noise-critical paths | Select when cost sensitivity outweighs noise performance and tighter VZ tolerance is not required |
| Vishay BZX55-C30 | Zener voltage 30 V ±5%, rd = 30 Ω, Pd = 500 mW, no published noise spec, JEDEC DO-35 package | Lacks documented low-noise optimization; larger footprint and higher thermal resistance than MHD | Choose for legacy DO-35 board reuse where noise margin >30 dB is acceptable |
Compared with 1N5256B and BZX55-C30, HZS30-2LTD-E delivers superior noise suppression and tighter voltage tolerance in a smaller, automated-assembly-optimized MHD package-making it the preferred choice for new designs demanding precision analog stability.
Availability
HZS30-2LTD-E is available at Aetrix Electronics and suitable for industrial power monitoring, precision sensor excitation, medical instrumentation reference, and test & measurement calibration requiring stable component supply and consistent parametric performance across production lots.
Supply support for HZS30-2LTD-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 HZS-L Series was developed specifically for low-noise voltage reference applications in precision analog systems-addressing demand for stable, low-drift, and low-impedance Zener diodes in instrumentation, medical, and test equipment.
FAQ
What is the zener voltage range for HZS30-2LTD-E?
The HZS30-2LTD-E has a specified zener voltage range of 29.2 V to 30.6 V at a test current of 0.5 mA, measured under DC conditions per Renesas REJ03G0166-0300 Rev.3.00. This 1.4 V span reflects manufacturing tolerance and ensures predictable regulation behavior in precision reference circuits where HZS30-2LTD-E is deployed.
Does HZS30-2LTD-E meet RoHS requirements?
Yes, HZS30-2LTD-E complies with the EU RoHS Directive as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and is rated for use in commercial and industrial applications per its "Standard" quality grade classification.
What is the maximum power dissipation rating for HZS30-2LTD-E?
HZS30-2LTD-E has a maximum power dissipation (Pd) of 400 mW at Ta = 25°C, derating linearly above that ambient temperature per the thermal curve in Figure 3 of the datasheet. This rating allows HZS30-2LTD-E to operate reliably in compact PCB layouts without heatsinking when used within its specified current and voltage limits.
How does the noise performance of HZS30-2LTD-E compare to standard Zener diodes?
HZS30-2LTD-E exhibits approximately 1/3 to 1/10 the broadband noise level of the legacy HZ series, as stated in the official Renesas features list. This low-noise characteristic is achieved via optimized silicon planar junction design and makes HZS30-2LTD-E especially valuable in HZS30-2LTD-E-based reference circuits for audio, instrumentation, and high-resolution data acquisition.
What package type is used for HZS30-2LTD-E?
HZS30-2LTD-E uses the MHD package (JEITA code GRZZ0002ZC-A), a radial-leaded, epoxy-molded housing with 2.0 mm lead diameter and 26.0 mm body length. It is designed for through-hole mounting and supports 5 mm pitch high-speed automatic insertion-ensuring compatibility with modern SMT-compatible assembly lines.
HZS30-2LTD-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:
- -
HZS30-2LTD-E FAQ
1.How can I place an order for HZS30-2LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS30-2LTD-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 HZS30-2LTD-E reliable?
The price and inventory of HZS30-2LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS30-2LTD-E is usually 5 days.
3.What payment methods are accepted for HZS30-2LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS30-2LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS30-2LTD-E?
HZS30-2LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS30-2LTD-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 HZS30-2LTD-E?
For technical support, including HZS30-2LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS30-2LTD-E requirements.
6.How does Aetrix verify that HZS30-2LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS30-2LTD-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 HZS30-2LTD-E meets industry standards.
7.What is the process for return or replacement of HZS30-2LTD-E?
All HZS30-2LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS30-2LTD-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 HZS30-2LTD-E part is unused and in its original packaging.
Return procedure for HZS30-2LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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