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Renesas HZS36-3LTD-E
- Part No.:
- HZS36-3LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS36-3LTD-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:12,500
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Product details
Overview
HZS36-3LTD-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 36.4–38.0 V at 0.5 mA test current, 300 Ω dynamic impedance, 400 mW power dissipation, and −55 to +175 °C storage temperature range. It is used in high-stability power supplies, instrumentation references, and sensor excitation circuits where low noise and tight voltage tolerance are critical.
For engineers reviewing the HZS36-3LTD-E datasheet, HZS36-3LTD-E pinout, HZS36-3LTD-E application, or HZS36-3LTD-E equivalent, key selection criteria include zener voltage tolerance (±0.8 V), low noise performance relative to legacy HZ series, thermal coefficient behavior near 36 V, and compatibility with 5 mm-pitch automated insertion processes.
Technical Context
This device operates as a two-terminal voltage reference using silicon planar junction technology, with zener breakdown engineered for stable regulation under DC bias at IZ = 0.5 mA. Its low leakage current (<1 μA at VR = 2.0 V) and controlled temperature coefficient (≈+0.06 %/°C typical at 36 V) support stable operation across industrial ambient ranges.
The HZS36-3LTD-E exhibits reduced diode noise-approximately 1/3 to 1/10 that of the older HZ series-due to optimized junction geometry and process control. Its MHD package (JEITA GRZZ0002ZC-A) supports mechanical reliability in wave-soldered and reflowed PCB assemblies while maintaining thermal resistance suitable for 400 mW continuous dissipation at Ta ≤ 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4–38.0 V at IZ = 0.5 mA - defines regulated output voltage window for reference design |
| Dynamic Impedance (rd) | 300 Ω max at IZ = 0.5 mA - determines load regulation sensitivity and AC ripple rejection |
| Power Dissipation (Pd) | 400 mW - sets maximum steady-state thermal limit on PCB without heatsinking |
| Junction Temperature (Tj) | 200 °C - enables operation in high-ambient industrial environments with appropriate derating |
| Reverse Leakage (IR) | ≤1 μA at VR = 2.0 V - ensures minimal error current in high-impedance reference nodes |
| Storage Temperature | −55 to +175 °C - supports extended environmental qualification for industrial-grade deployment |
Pinout & Package
Package: MHD (JEITA GRZZ0002ZC-A), axial lead, glass-passivated silicon planar construction, 2.0 mm diameter × 26.0 mm body length, 5 mm pitch compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node; reverse-biased terminal during regulation |
| 2 (Non-banded End) | Anode | Connected to lower potential (typically ground or return); completes bias path |
Key Features
| Feature | Design Value |
|---|---|
| Noise Performance | ≈1/3–1/10 lower than HZ-series diodes - directly improves SNR in precision ADC references and low-level signal chains |
| Zener Voltage Range | 5.2–38 V across HZS-L family - enables single-supplier sourcing for multi-rail systems requiring matched low-noise references |
| Low Dynamic Impedance | 60–300 Ω depending on VZ - minimizes output voltage shift under varying load current in shunt regulator topologies |
| Automated Insertion Compatibility | 5 mm pitch - supports high-throughput placement in industrial PCB assembly lines without manual handling |
| Thermal Stability | +0.06 %/°C tempco at ~36 V - enables predictable drift compensation in wide-temperature-range instrumentation |
Applications
| Industrial Power Supply Reference | Precision Sensor Excitation |
|---|---|
Use Scenario: Stable 36 V reference for feedback loop in isolated DC-DC converters delivering ±15 V and ±24 V rails. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed regulation point for optocoupler-based error amplification. Use Value: Low dynamic impedance (300 Ω) maintains <±0.5% output regulation across 10–100 mA load transients. |
Use Scenario: Excitation source for strain-gauge Wheatstone bridges in load-cell interfaces operating at 35–37 V. IC Role / Device Role / Timing Role: Low-noise voltage source minimizing Johnson-Nyquist noise contribution to bridge output. Use Value: Diode noise reduction vs. HZ series improves effective resolution by ≥1.5 ENOB in 24-bit sigma-delta measurements. |
| Test Equipment Voltage Standard | Medical Diagnostic Signal Conditioning |
Use Scenario: Calibration reference in portable multimeters and benchtop DMMs requiring traceable 36.5 V standard. IC Role / Device Role / Timing Role: Primary voltage standard in self-calibration circuitry, monitored via precision DAC and comparator. Use Value: Tight VZ tolerance (±0.8 V) and low tempco enable <±50 ppm/°C system-level accuracy without active compensation. |
Use Scenario: Bias supply for photodiode transimpedance amplifiers in pulse oximetry front-ends. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) reference ensuring minimal offset drift in high-gain, high-Z input stages. Use Value: Sub-μA leakage prevents >10 nA error current that would otherwise dominate dark-current measurement uncertainty. |
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 |
|---|---|---|---|
| 1N4749A (ON Semiconductor) | Zener voltage 24 V, 1 W rating, 20 Ω rd, higher noise than HZS-L series | Higher power, lower voltage - suited for general-purpose 24 V regulation, not low-noise 36 V reference | Select only if 24 V and higher Pd are required; not a functional substitute for HZS36-3LTD-E's noise or voltage specs |
| BZX85C36 (Vishay) | 36 V nominal, 1.3 W, 100 Ω rd, no published noise spec, TO-204AA package | Larger TO-204AA package, higher power but unverified low-noise performance | Acceptable for non-critical 36 V references; avoid where diode noise contributes measurably to system noise floor |
Compared with 1N4749A and BZX85C36, the HZS36-3LTD-E delivers uniquely low noise and tighter VZ tolerance at 36 V in a compact MHD package, making it the preferred choice for metrology-grade references where spectral purity and long-term stability outweigh raw power handling.
Availability
HZS36-3LTD-E is available at Aetrix Electronics and suitable for industrial power supplies, precision instrumentation, test equipment calibration, and medical signal conditioning requiring stable component supply with full traceability and lifecycle management.
Supply support for HZS36-3LTD-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 infrastructure markets.
The HZS-L series belongs to Renesas' discrete analog portfolio, designed specifically for low-noise, high-stability voltage reference applications in test and measurement, industrial automation, and precision analog signal chains.
FAQ
What is the exact zener voltage range specified for HZS36-3LTD-E?
The HZS36-3LTD-E has a guaranteed zener voltage range of 36.4 V to 38.0 V when tested at IZ = 0.5 mA and Ta = 25 °C. This 1.6 V span reflects process-controlled tight tolerance for use in applications demanding stable reference points without post-calibration trimming. The HZS36-3LTD-E achieves this specification through Renesas' silicon planar junction fabrication and screening.
Does HZS36-3LTD-E support automated PCB assembly?
Yes, the HZS36-3LTD-E uses the MHD package (JEITA GRZZ0002ZC-A) with standardized 5 mm lead pitch, explicitly qualified for high-speed automatic insertion per the datasheet. Its axial lead geometry and 2.0 mm body diameter ensure reliable feeding, placement, and solder joint formation in wave and selective soldering processes. The HZS36-3LTD-E is routinely deployed in volume industrial PCB manufacturing.
How does the noise performance of HZS36-3LTD-E compare to standard Zener diodes?
The HZS36-3LTD-E delivers approximately 1/3 to 1/10 the diode noise of legacy HZ-series Zeners due to optimized planar junction design and process refinement. This reduction directly lowers broadband voltage noise in reference nodes-critical for high-resolution data acquisition and low-drift analog front-ends. The HZS36-3LTD-E's noise advantage is documented in Renesas' REJ03G0166-0300 characterization data.
What is the maximum allowable power dissipation for HZS36-3LTD-E at 70°C ambient?
Per Figure 3 in the HZS-L Series datasheet (REJ03G0166-0300 Rev.3.00), the HZS36-3LTD-E's power dissipation must be derated linearly above 50 °C ambient. At 70 °C, its maximum allowable Pd is 320 mW-calculated from the 400 mW rating at 25 °C and 20 °C rise beyond the 50 °C inflection point (−4 mW/°C slope). Exceeding this risks junction overheating and accelerated parametric drift in the HZS36-3LTD-E.
Is HZS36-3LTD-E suitable for medical diagnostic equipment?
The HZS36-3LTD-E is rated as "Standard" quality grade per Renesas' classification and approved for use in medical equipment *not* intended for life support, surgical implantation, or healthcare intervention. It is appropriate for signal conditioning, sensor biasing, and non-critical power rails in diagnostic imaging subsystems and patient monitoring peripherals-provided final system validation confirms compliance with IEC 60601-1 and relevant regional safety standards. The HZS36-3LTD-E itself is not certified for "Specific"-grade applications.
HZS36-3LTD-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:
- -
HZS36-3LTD-E FAQ
1.How can I place an order for HZS36-3LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS36-3LTD-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 HZS36-3LTD-E reliable?
The price and inventory of HZS36-3LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS36-3LTD-E is usually 5 days.
3.What payment methods are accepted for HZS36-3LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS36-3LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS36-3LTD-E?
HZS36-3LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS36-3LTD-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 HZS36-3LTD-E?
For technical support, including HZS36-3LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS36-3LTD-E requirements.
6.How does Aetrix verify that HZS36-3LTD-E is sourced from the original manufacturer or authorized distributors?
All HZS36-3LTD-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 HZS36-3LTD-E meets industry standards.
7.What is the process for return or replacement of HZS36-3LTD-E?
All HZS36-3LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS36-3LTD-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 HZS36-3LTD-E part is unused and in its original packaging.
Return procedure for HZS36-3LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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