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Renesas HZ36-3LTD-E
- Part No.:
- HZ36-3LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36-3LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
HZ36-3LTD-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, 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 HZ36-3LTD-E datasheet, HZ36-3LTD-E pinout, HZ36-3LTD-E application, or HZ36-3LTD-E equivalent, key selection criteria include zener voltage tolerance (±1.4 V), temperature coefficient (−0.04 %/°C typical at ~36 V), low leakage (<1 μA at VR = 28.2 V), and compatibility with through-hole PCB assembly in industrial instrumentation and telecom power modules.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low-noise performance stems from optimized doping profile and passivation, achieving diode noise ~1/3–1/10 that of legacy HZ-series parts. The zener voltage exhibits negative temperature coefficient behavior across its operating range.
Rated for 400 mW DC power dissipation at 25°C ambient, thermal derating follows a linear curve to zero at 175°C junction temperature. The DO-35 package supports axial lead mounting with 2.0 mm body diameter and 26 mm overall length, enabling reliable heat conduction via PCB copper pour or air convection in non-sealed enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4–38.0 V at IZ = 0.5 mA - defines stable regulation point for feedback networks requiring ±1.4 V tolerance |
| Dynamic Impedance (rd) | 33.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under load transients in reference circuits |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact layouts with adequate board-level thermal management |
| Reverse Leakage (IR) | <1 μA at VR = 28.2 V - prevents significant error current in high-impedance bias networks |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - enables predictable drift compensation in temperature-sensitive measurement front-ends |
| Junction Temperature (Tj) | −55 to +175°C - allows deployment in extended-temperature industrial environments without derating penalties |
Pinout & Package
Package: DO-35 glass axial-leaded package (Renesas code GRZZ0002ZB-A, JEITA SC-40), 2.0 mm diameter × 26 mm length, orange body with navy-blue cathode band, mass 0.13 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side terminal of reverse-biased junction | Connected to regulated output node; polarity must be observed to maintain zener conduction |
| 2 (Anode) | Low-side terminal of reverse-biased junction | Tied to ground or lower-potential rail; forms return path for zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise performance | Diode noise reduced to ~1/3–1/10 of standard HZ series - improves SNR in precision ADC references and low-level signal conditioning |
| Stable low-impedance regulation | 33.0 Ω dynamic resistance at 0.5 mA - minimizes output voltage variation under varying load conditions |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V - enables single-supplier sourcing across multiple reference voltage tiers |
| Robust thermal capability | 175°C maximum junction temperature - supports operation in high-ambient environments such as motor drives and base station power supplies |
| DO-35 mechanical reliability | Hermetically sealed glass package with axial leads - provides long-term stability and moisture resistance in uncoated PCB assemblies |
Applications
| Industrial Power Monitoring | Telecom DC-DC Reference |
|---|---|
|
Use Scenario: Real-time voltage supervision in programmable logic controller (PLC) power rails. IC Role / Device Role / Timing Role: Zener reference for comparator threshold generation in overvoltage/undervoltage detection circuitry. Use Value: Tight 36.4–38.0 V tolerance and low 33.0 Ω impedance ensure accurate trip-point setting despite supply ripple and temperature drift. |
Use Scenario: Output voltage feedback in isolated 48 V telecom DC-DC converters. IC Role / Device Role / Timing Role: Primary-side zener clamp defining secondary-side regulation setpoint via optocoupler feedback loop. Use Value: Low 1 μA leakage preserves feedback accuracy across wide temperature ranges, reducing calibration burden in field-deployed units. |
| Test Equipment Bias Supply | Automotive Sensor Excitation |
|
Use Scenario: Stable excitation source for bridge-based strain gauges in benchtop calibration systems. IC Role / Device Role / Timing Role: Low-noise voltage reference for constant-current source driving Wheatstone bridge arms. Use Value: Ultra-low noise floor directly translates to sub-microvolt RMS noise in bridge output, enabling <16-bit effective resolution. |
Use Scenario: Reference voltage for pressure sensor signal conditioning in engine control units (ECUs). IC Role / Device Role / Timing Role: Zener-stabilized bias for analog front-end amplifiers interfacing piezoresistive sensors. Use Value: −0.04 %/°C temperature coefficient aligns closely with sensor drift profiles, minimizing system-level compensation complexity. |
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 |
|---|---|---|---|
| ON Semiconductor MMBZ5267BLT1G | Zener voltage 36 V ±5%, 200 mW rating, SOD-123 surface-mount package | Lacks ultra-low-noise optimization; suitable only for non-critical regulation where size trumps noise performance | Select when board space is constrained and noise below 100 kHz is not required |
| Vishay BZX84-C36 | Zener voltage 36 V ±5%, 300 mW rating, SOT-23 package, higher dynamic impedance (~50 Ω) | Higher rd increases output sensitivity to load changes; not recommended for precision feedback loops | Prefer for cost-sensitive consumer applications where ±5% tolerance and moderate stability suffice |
Compared with HZ36-3LTD-E, MMBZ5267BLT1G offers smaller footprint but sacrifices 2× higher noise and 45% lower power handling, while BZX84-C36 trades off 52% higher dynamic impedance and looser voltage tolerance-making HZ36-3LTD-E the sole choice for low-noise, high-stability analog reference designs.
Availability
HZ36-3LTD-E is available at Aetrix Electronics and suitable for industrial power monitoring, telecom DC-DC reference, and test equipment bias supply requiring stable component supply with full traceability and lifecycle continuity.
Supply support for HZ36-3LTD-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 global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and infrastructure markets.
HZ36-3LTD-E belongs to the HZ-L Series of low-noise silicon planar Zener diodes, engineered specifically for high-precision voltage reference and stabilization in analog signal chains and power management subsystems.
FAQ
What is the exact zener voltage range specified for HZ36-3LTD-E?
The HZ36-3LTD-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 ±1.4 V tolerance reflects tight process control for use in applications demanding stable reference points without post-manufacturing trimming. The HZ36-3LTD-E datasheet (REJ03G0182-0300 Rev.3.00) confirms this specification on page 3 under Electrical Characteristics.
Does HZ36-3LTD-E support high-temperature operation?
Yes, HZ36-3LTD-E is rated for junction temperatures from −55°C to +175°C and storage temperatures spanning the same range. Its DO-35 package enables reliable thermal conduction in industrial environments, and derating curves show usable power dissipation up to 125°C ambient before reaching thermal limits. The HZ36-3LTD-E maintains regulation integrity across this full range when properly mounted on thermally adequate PCB copper.
How does the noise performance of HZ36-3LTD-E compare to standard Zener diodes?
HZ36-3LTD-E delivers diode noise approximately 1/3 to 1/10 that of legacy HZ-series Zeners due to proprietary planar diffusion and passivation techniques. This reduction is critical in low-level analog circuits such as precision ADC references and sensor excitation sources, where broadband noise directly impacts effective resolution. The HZ36-3LTD-E datasheet explicitly cites this advantage in its Features section on page 1.
What is the maximum reverse leakage current for HZ36-3LTD-E?
The maximum reverse leakage current for HZ36-3LTD-E is 1 μA when measured at VR = 28.2 V and Ta = 25°C. This low leakage ensures minimal error current in high-impedance reference divider networks and preserves accuracy in battery-powered or energy-harvesting systems where quiescent current matters. The value is documented in the Electrical Characteristics table on page 3 of the HZ36-3LTD-E datasheet.
Is HZ36-3LTD-E RoHS compliant and lead-free?
Yes, HZ36-3LTD-E complies with the EU RoHS Directive and is lead-free. Renesas Electronics confirms environmental compliance for all HZ-L Series devices in accordance with applicable regulations, including restriction of hazardous substances. Customers should verify latest status via Renesas' official product change notifications or material declarations, as referenced in the HZ36-3LTD-E datasheet's environmental notice on page 5.
HZ36-3LTD-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:
- -
HZ36-3LTD-E FAQ
1.How can I place an order for HZ36-3LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36-3LTD-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 HZ36-3LTD-E reliable?
The price and inventory of HZ36-3LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36-3LTD-E is usually 5 days.
3.What payment methods are accepted for HZ36-3LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36-3LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36-3LTD-E?
HZ36-3LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36-3LTD-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 HZ36-3LTD-E?
For technical support, including HZ36-3LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36-3LTD-E requirements.
6.How does Aetrix verify that HZ36-3LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ36-3LTD-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 HZ36-3LTD-E meets industry standards.
7.What is the process for return or replacement of HZ36-3LTD-E?
All HZ36-3LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ36-3LTD-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 HZ36-3LTD-E part is unused and in its original packaging.
Return procedure for HZ36-3LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ36-3LTD-E Tags
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