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Renesas HZ36-1LTD-E
- Part No.:
- HZ36-1LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36-1LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZ36-1LTD-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 34.2–35.7 V, 400 mW power dissipation, 33.0 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass package with navy-blue cathode band. It serves in high-stability power supply feedback paths and sensor biasing where low noise and tight voltage tolerance are critical.
For engineers reviewing the HZ36-1LTD-E datasheet, HZ36-1LTD-E pinout, HZ36-1LTD-E application, or HZ36-1LTD-E equivalent, key selection criteria include zener voltage tolerance (±2.2%), temperature coefficient (−0.04 %/°C typical), low leakage (<1 μA at VR = 28.2 V), and compatibility with standard through-hole PCB assembly processes using DO-35 footprint.
Technical Context
This device operates as a two-terminal voltage reference, relying on controlled avalanche breakdown in its silicon junction to maintain stable reverse-bias voltage under varying load and temperature conditions. Its low noise level-approximately 1/3–1/10 that of the legacy HZ series-is achieved via optimized planar diffusion and passivation processes.
The HZ36-1LTD-E exhibits a negative temperature coefficient of −0.04 %/°C (≈−14 mV/°C) near 35 V, enabling predictable drift compensation in reference designs. Absolute maximum ratings specify 400 mW power dissipation at 25°C ambient, derating linearly to zero at 175°C junction temperature, with storage range spanning −55°C to +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.2–35.7 V at IZ = 0.5 mA - defines stable regulation point for feedback networks requiring ±2.2% tolerance |
| Dynamic Impedance (rd) | 33.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under small-signal load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with adequate copper area |
| Reverse Leakage (IR) | <1 μA at VR = 28.2 V - prevents significant error current in high-impedance reference nodes |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - enables predictable thermal drift modeling for compensated references |
| Junction Temperature (Tj) | 175°C max - allows reliable operation in industrial environments with localized heating |
Pinout & Package
Package: DO-35 glass axial-leaded package (RENESAS code GRZZ0002ZB-A, JEITA SC-40), orange body with navy-blue cathode band; total mass ≈ 0.13 g; lead spacing 26.0 mm min.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-voltage reference node | Connected to regulated output or op-amp inverting input; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Ground or return path | Biased at lower potential; forms current path with series resistor to set operating point |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise reduced to ~1/3–1/10 of HZ-series baseline - critical for audio preamps and precision ADC references |
| Stable low-impedance regulation | 33.0 Ω dynamic resistance at 0.5 mA - minimizes AC ripple coupling into sensitive analog stages |
| Wide zener voltage range support | Part of HZ-L family covering 5.2–38 V - enables single-supplier sourcing across multiple reference voltages |
| Robust thermal performance | 175°C max junction temperature - supports use in sealed enclosures or near heat-generating components |
| Standardized DO-35 footprint | Compatible with legacy through-hole tooling and IPC-7351A axial land patterns - no retooling required |
Applications
| Industrial Power Supply Feedback | High-Voltage Sensor Biasing |
|---|---|
Use Scenario: Regulating output of isolated DC-DC converters in PLC power modules where EMI immunity and long-term stability are mandatory. IC Role / Device Role / Timing Role: Zener reference in TL431-based shunt regulator feedback loop, setting precise 35 V output threshold. Use Value: Tight 34.2–35.7 V tolerance and low 33 Ω impedance ensure <±0.5% output drift over 10-year field life under thermal cycling. |
Use Scenario: Providing stable bias voltage to piezoresistive pressure sensors in hydraulic control systems operating up to 125°C ambient. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) voltage reference for Wheatstone bridge excitation, minimizing offset drift. Use Value: −0.04 %/°C tempco and 175°C Tj rating enable accurate bridge calibration across full industrial temperature range. |
| Audio Equipment Reference | Test & Measurement Calibration |
Use Scenario: Generating ultra-low-noise reference for microphone preamplifier gain stages in broadcast-grade audio interfaces. IC Role / Device Role / Timing Role: Low-noise Zener source feeding discrete JFET buffer, replacing noisy IC references. Use Value: Noise reduction to ~1/10 of standard HZ diodes directly lowers system SNR floor by ≥6 dB in 20 Hz–20 kHz band. |
Use Scenario: Serving as traceable voltage standard in handheld multimeter internal calibration circuitry. IC Role / Device Role / Timing Role: Primary reference element in auto-ranging divider network, stabilized by constant-current source. Use Value: 400 mW power rating and DO-35 mechanical robustness support repeated thermal cycling during factory calibration without parameter shift. |
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 MMBZ5265BLT1G | 36 V nominal, SOD-123 surface-mount package, 100 Ω rd, 200 mW Pd | Requires PCB redesign for SMT; higher impedance limits high-frequency stability | Choose when board space is constrained and thermal budget permits lower power handling |
| Vishay BZX84-C36 | 36 V nominal, SOT-23 package, 90 Ω rd, 300 mW Pd, ±5% tolerance | Looser voltage tolerance and higher noise than HZ36-1LTD-E; not suited for precision analog | Acceptable only for non-critical voltage clamping where cost outweighs accuracy requirements |
Compared with MMBZ5265BLT1G and BZX84-C36, the HZ36-1LTD-E delivers superior low-noise performance, tighter voltage tolerance, and higher power margin in a proven through-hole package-making it preferred for industrial instrumentation and audio reference designs where long-term stability is non-negotiable.
Availability
HZ36-1LTD-E is available at Aetrix Electronics and suitable for industrial power supplies, high-voltage sensor interfaces, audio reference circuits, and portable test equipment requiring stable component supply with consistent parametric performance across production lots.
Supply support for HZ36-1LTD-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 HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in industrial and test equipment-emphasizing precision, thermal predictability, and long-term reliability over cost-driven general-purpose use.
FAQ
What is the zener voltage tolerance of HZ36-1LTD-E?
The HZ36-1LTD-E has a specified zener voltage range of 34.2 V to 35.7 V at 0.5 mA test current, corresponding to a ±2.2% tolerance about the nominal 35 V point. This tight tolerance is confirmed in the Renesas REJ03G0182-0300 datasheet, Page 3, and reflects process-controlled diffusion for precision reference use-not statistical binning.
Does HZ36-1LTD-E support high-temperature operation?
Yes, the HZ36-1LTD-E is rated for junction temperatures up to 175°C and storage temperatures from −55°C to +175°C. Its DO-35 glass package and silicon planar construction enable reliable operation in industrial environments such as motor drive control boards and outdoor telecom power units where ambient temperatures exceed 85°C.
How does the noise performance of HZ36-1LTD-E compare to standard Zener diodes?
The HZ36-1LTD-E achieves approximately 1/3–1/10 the noise level of the legacy HZ series due to optimized planar junction design and passivation. This is explicitly stated in the "Features" section of the Renesas datasheet (Page 1) and validated by low dynamic impedance (33.0 Ω) and tight voltage regulation-critical for audio and precision measurement applications.
Is HZ36-1LTD-E RoHS compliant?
Yes, HZ36-1LTD-E complies with the EU RoHS Directive as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and is suitable for use in consumer and industrial electronics sold in regulated markets.
What is the recommended test current for measuring HZ36-1LTD-E's zener voltage?
The zener voltage of HZ36-1LTD-E is specified at a test current of 0.5 mA, as documented in the Electrical Characteristics table (Page 2 of REJ03G0182-0300). Operating at this current ensures measurement within the device's optimal regulation region while maintaining low self-heating-critical for repeatable lab verification and production testing of HZ36-1LTD-E.
HZ36-1LTD-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:
- -
HZ36-1LTD-E FAQ
1.How can I place an order for HZ36-1LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36-1LTD-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 HZ36-1LTD-E reliable?
The price and inventory of HZ36-1LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36-1LTD-E is usually 5 days.
3.What payment methods are accepted for HZ36-1LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36-1LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36-1LTD-E?
HZ36-1LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36-1LTD-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 HZ36-1LTD-E?
For technical support, including HZ36-1LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36-1LTD-E requirements.
6.How does Aetrix verify that HZ36-1LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ36-1LTD-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 HZ36-1LTD-E meets industry standards.
7.What is the process for return or replacement of HZ36-1LTD-E?
All HZ36-1LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ36-1LTD-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 HZ36-1LTD-E part is unused and in its original packaging.
Return procedure for HZ36-1LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ36-1LTD-E Tags
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