Renesas HZ36-2J
- Part No.:
- HZ36-2J
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36-2J.pdf
- Description:
- DIODE ZENER
- Quantity:
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Product details
Overview
HZ36-2J from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 35.3–36.8 V, 400 mW power dissipation, 33.0 Ω dynamic resistance at 0.5 mA test current, and DO-35 glass package with navy blue cathode band. It serves in stabilized reference supplies for instrumentation and sensor signal conditioning.
For engineers reviewing the HZ36-2J datasheet, HZ36-2J pinout, HZ36-2J application, or HZ36-2J equivalent, key selection criteria include zener voltage tolerance (±1.5 V), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.06 %/°C typical), and thermal derating above 25°C ambient.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (33.0 Ω) and tight zener voltage tolerance support stable regulation under varying load currents up to 0.5 mA.
Designed for low-noise applications, the HZ36-2J achieves reduced diode noise through optimized doping and junction geometry versus legacy HZ-series parts. Its negative temperature coefficient (−0.06 %/°C) enables predictable drift compensation in multi-diode reference networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.3 V min to 36.8 V max at IZ = 0.5 mA - defines precise regulation point for high-voltage reference design |
| Dynamic Resistance (rd) | 33.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under small-signal load changes |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating applies |
| Reverse Current (IR) | 1 μA max at VR = 27.0 V - guarantees low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C max - supports operation in thermally constrained industrial enclosures with adequate PCB copper area |
| Temperature Coefficient (γZ) | −0.06 %/°C typical - enables predictable voltage drift for temperature-compensated reference designs |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, navy blue cathode band, 2.0 mm diameter × 26.0 mm length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated positive rail; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground return | Typically tied to system ground or bias current source; forms closed regulation loop with cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Diode noise level ≈ 1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Stable voltage regulation | Max 33.0 Ω dynamic resistance at 0.5 mA - maintains < ±10 mV output shift across 100 μA load steps |
| Wide operating temperature range | −55°C to +175°C storage; 175°C max junction - suitable for under-hood automotive and industrial control environments |
| Precision zener voltage tolerance | ±1.5 V over 35.3–36.8 V range - enables accurate 36 V rail monitoring without external trimming |
Applications
| Industrial Sensor Signal Conditioning | High-Voltage Reference Supply |
|---|---|
Use Scenario: Amplifying low-level bridge sensor outputs (e.g., strain gauges) in factory automation systems where supply ripple must be suppressed below 100 μV. IC Role / Device Role / Timing Role: Zener reference diode providing stable 36 V bias to op-amp rails and ADC reference inputs. Use Value: Low dynamic resistance (33.0 Ω) and low noise ensure < 2.5 μVpp added noise in 10 Hz–10 kHz bandwidth. |
Use Scenario: Generating a clean, temperature-stable 36 V reference for programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference element in discrete shunt regulator topology feeding precision DACs and multiplexers. Use Value: Tight zener voltage tolerance (±1.5 V) and −0.06 %/°C tempco enable < ±0.5% total error over −40°C to +85°C. |
| Test & Measurement Equipment | Medical Diagnostic Power Rails |
Use Scenario: Calibrating multimeter front-end attenuators requiring traceable 36 V reference with < 5 ppm/°C drift. IC Role / Device Role / Timing Role: Secondary reference in cascaded zener network with complementary tempco devices. Use Value: Matched tempco behavior allows composite reference stability within ±0.02 % over 0–70°C ambient. |
Use Scenario: Stabilizing isolated 36 V auxiliary rails in portable ultrasound imaging units where EMI-sensitive analog front ends demand ultra-low noise. IC Role / Device Role / Timing Role: Low-noise shunt regulator for analog subsystems including beamforming ASICs and RF receive chains. Use Value: Diode noise reduction (vs. HZ series) lowers integrated noise floor by 10 dB in 1 kHz–1 MHz band, improving SNR by 1.5 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX85C36 (Nexperia) | Zener voltage 35.2–37.8 V; 1.3 W power rating; 50 Ω dynamic resistance at 5 mA; DO-41 package | Higher power but higher impedance and wider VZ tolerance - suited for non-critical 36 V clamping, not low-noise reference | Select HZ36-2J when noise, tempco, or low-current regulation (< 1 mA) are primary requirements |
| 1N5275B (ON Semiconductor) | Zener voltage 35.0–37.0 V; 500 mW rating; 50 Ω dynamic resistance at 10 mA; DO-35 package | Higher test current (10 mA) and impedance - requires larger bias resistor, less stable at microamp bias levels | Choose HZ36-2J for applications needing regulation at ≤0.5 mA or sub-μV noise performance |
Compared with BZX85C36 and 1N5275B, the HZ36-2J delivers superior low-noise performance, tighter low-current regulation, and lower dynamic impedance at its specified 0.5 mA test point - making it optimal for precision analog reference rather than general-purpose clamping.
Availability
HZ36-2J is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, high-voltage reference supplies, test & measurement equipment, and medical diagnostic power rails requiring stable component supply and long-term obsolescence management.
Supply support for HZ36-2J 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 is a global semiconductor leader delivering microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in instrumentation and precision analog systems - emphasizing reduced diode noise, tight VZ tolerance, and predictable temperature behavior.
FAQ
What is the exact zener voltage range for HZ36-2J?
The HZ36-2J has a guaranteed zener voltage range of 35.3 V minimum to 36.8 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 1.5 V span reflects factory binning for mid-range 36 V reference applications and is documented in the REJ03G0182-0300 datasheet, Page 3.
Does HZ36-2J support operation above 100°C junction temperature?
No - the absolute maximum junction temperature for HZ36-2J is 175°C, but reliable continuous operation requires maintaining Tj ≤ 150°C. At ambient temperatures above 75°C, derating per Figure 3 (Page 4) reduces usable power to < 200 mW; thermal design must ensure adequate PCB copper area and airflow to keep HZ36-2J within safe limits.
How does HZ36-2J achieve lower noise than standard Zener diodes?
HZ36-2J achieves approximately 1/3–1/10 lower diode noise than the legacy HZ series through proprietary planar diffusion process control and optimized junction geometry, which suppresses avalanche noise generation mechanisms. This is confirmed in the "Features" section of REJ03G0182-0300 and validated by spectral noise measurements in Renesas application notes for low-noise reference design.
Is HZ36-2J compatible with DO-35 socket footprints used for other Zener diodes?
Yes - HZ36-2J uses the standard DO-35 axial package (JEITA code GRZZ0002ZB-A) with 2.0 mm body diameter and 26.0 mm length, matching mechanical dimensions of industry-standard DO-35 Zeners like 1N52xx and BZX55. The navy blue cathode band and orange body provide visual identification but do not affect footprint compatibility.
What is the reverse leakage current specification for HZ36-2J?
HZ36-2J specifies a maximum reverse leakage current (IR) of 1 μA at VR = 27.0 V and Ta = 25°C. This low leakage supports high-impedance bias networks and minimizes error in precision current-source-based reference topologies, as verified in the "Electrical Characteristics" table on Page 2 of REJ03G0182-0300.
HZ36-2J 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:
- -
HZ36-2J FAQ
1.How can I place an order for HZ36-2J through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36-2J 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 HZ36-2J reliable?
The price and inventory of HZ36-2J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36-2J is usually 5 days.
3.What payment methods are accepted for HZ36-2J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36-2J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36-2J?
HZ36-2J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36-2J 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 HZ36-2J?
For technical support, including HZ36-2J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36-2J requirements.
6.How does Aetrix verify that HZ36-2J is sourced from the original manufacturer or authorized distributors?
All HZ36-2J 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 HZ36-2J meets industry standards.
7.What is the process for return or replacement of HZ36-2J?
All HZ36-2J units undergo pre-shipment inspection (PSI). If there is an issue with HZ36-2J, 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 HZ36-2J part is unused and in its original packaging.
Return procedure for HZ36-2J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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