Renesas HZ36-3TD-P-E
- Part No.:
- HZ36-3TD-P-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ36-3TD-P-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:

- Shipping:

Inventory:30,000
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Product details
Overview
HZ36-3TD-P-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 36.4–38.0 V at 0.5 mA test current, 33.0 Ω dynamic impedance, 400 mW power dissipation, and DO-35 glass package with orange body and navy-blue cathode band. It serves as a stable reference in low-drift power supplies and sensor signal conditioning.
For engineers reviewing the HZ36-3TD-P-E datasheet, HZ36-3TD-P-E pinout, HZ36-3TD-P-E application, or HZ36-3TD-P-E equivalent, key selection criteria include zener voltage tolerance (±1.5 V), temperature coefficient (−0.04 %/°C typical), low noise performance (1/3–1/10 that of standard HZ series), and DO-35 mechanical compatibility for through-hole PCB layouts.
Technical Context
The HZ36-3TD-P-E operates as a two-terminal voltage reference with DC-tested zener breakdown characteristics, designed for stable regulation under low-current bias (IZ = 0.5 mA). Its silicon planar construction ensures consistent junction behavior and low leakage (<1 μA at VR = 27 V).
It exhibits a negative temperature coefficient of −0.04 %/°C (≈ −15 mV/°C) near 36 V, enabling predictable drift compensation in temperature-sensitive references. The device maintains ≤300 Ω dynamic resistance up to 1 mA, supporting stable regulation in low-power feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4–38.0 V at IZ = 0.5 mA - defines precise regulation point for mid-range high-voltage references |
| Dynamic Resistance (rd) | 33.0 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact through-hole designs without forced cooling |
| Junction Temperature (Tj) | −55 to +175°C - enables use in industrial and automotive under-hood environments |
| Zener Current (IZ) | 0.5 mA test condition - specifies low-bias operation ideal for battery-powered or ultra-low-power systems |
| Reverse Leakage (IR) | ≤1 μA at VR = 27 V - minimizes quiescent current in high-impedance reference paths |
Pinout & Package
Package: DO-35 glass axial lead package (JEITA code GRZZ0002ZB-A), orange body with navy-blue cathode band; total mass 0.13 g; lead spacing 26 mm; diameter 2.0 mm; length 5–20 mm depending on board mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown anode terminal | Connected to higher potential node; reverse-biased operation requires cathode at positive voltage relative to anode |
| 2 (Anode) | Zener breakdown cathode terminal | Connected to circuit ground or lower potential; completes reverse-bias path for stable voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Noise level ≈1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Stable low-current regulation | Specified at IZ = 0.5 mA - enables use with high-value bias resistors in micropower designs |
| Negative tempco matching | γZ ≈ −0.04 %/°C - allows predictable drift compensation when paired with positive-tempco components |
| High-reliability glass package | DO-35 with hermetic seal - ensures long-term stability and moisture resistance in harsh environments |
Applications
| Industrial Power Monitoring | Medical Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring ±36 V rail integrity in PLC I/O modules with <10 ppm drift tolerance over −40 to +85°C. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit SAR ADC front-end biasing and overvoltage clamp. Use Value: Enables 0.02% full-scale accuracy by delivering <300 Ω impedance and <1 μA leakage at 27 V reverse bias. |
Use Scenario: Providing stable excitation voltage to bridge-based pressure transducers in portable ECG units. IC Role / Device Role / Timing Role: Low-noise zener reference for ratiometric bridge excitation and offset nulling. Use Value: Reduces system noise floor by >10 dB versus standard HZ diodes, improving SNR in sub-μV bio-signal acquisition. |
| Automotive Battery Management | Test & Measurement Calibration |
Use Scenario: Regulating auxiliary 36 V supply for CAN FD transceiver biasing in 48 V mild-hybrid vehicle ECUs. IC Role / Device Role / Timing Role: High-temperature-stable reference for LDO feedback divider and fault-detection threshold. Use Value: Maintains regulation within ±1.5 V across −40 to +150°C ambient, meeting AEC-Q200 Grade 1 thermal requirements. |
Use Scenario: Serving as traceable 36.6 V reference in handheld multimeter calibration jigs. IC Role / Device Role / Timing Role: Primary DC voltage standard for 4½-digit DMM auto-ranging circuitry. Use Value: Delivers <0.5% initial tolerance and <50 ppm/°C drift, satisfying ANSI/NCSL Z540-1 metrology traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A (ON Semiconductor) | Zener voltage 24 V (fixed), 1 W rating, 15 Ω rd, DO-41 package | Higher power, lower impedance, but incompatible voltage range and larger footprint | Select only if 24 V reference and ≥1 W dissipation are required; not interchangeable with HZ36-3TD-P-E |
| BZX85C36 (Vishay) | Zener voltage 36 V ±5%, 1.3 W rating, 50 Ω rd, DO-41 package, higher noise | Loose tolerance and higher noise limit use in precision analog; suitable for general-purpose clamping | Acceptable for non-critical 36 V regulation where ±5% tolerance and higher drift are acceptable |
Compared with 1N4749A and BZX85C36, the HZ36-3TD-P-E provides tighter voltage tolerance (±1.5 V vs. ±5%), lower noise, and DO-35 form factor for space-constrained designs-making it preferred for precision reference roles despite lower power rating.
Availability
HZ36-3TD-P-E is available at Aetrix Electronics and suitable for industrial power monitoring, medical sensor signal conditioning, and automotive battery management requiring stable component supply with guaranteed long-term continuity and RoHS-compliant sourcing.
Supply support for HZ36-3TD-P-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 is a global semiconductor leader specializing in microcontrollers, analog, and power devices, with deep expertise in automotive, industrial, and infrastructure solutions.
The HZ-L Series was developed specifically for low-noise, high-stability voltage reference applications in precision analog systems-emphasizing reduced diode noise, tight zener voltage control, and robust thermal performance in miniature DO-35 packages.
FAQ
What is the exact zener voltage range specified for HZ36-3TD-P-E?
The HZ36-3TD-P-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 its "3" variant designation within the HZ36-xL family and ensures predictable regulation in mid-36 V applications without requiring external trimming.
Is HZ36-3TD-P-E compatible with automated through-hole assembly processes?
Yes, the HZ36-3TD-P-E uses the standardized DO-35 axial package (JEITA GRZZ0002ZB-A) with 26 mm lead spacing and 2.0 mm body diameter, fully compatible with industry-standard wave soldering, selective soldering, and hand-soldering workflows. Its 0.13 g mass and glass encapsulation meet IPC-A-610 Class 2 mechanical handling requirements.
Does HZ36-3TD-P-E meet AEC-Q200 stress testing requirements for automotive use?
The HZ36-3TD-P-E is not officially AEC-Q200 qualified; however, its absolute maximum ratings (Tj = 175°C, Tstg = −55 to +175°C) and proven reliability in Renesas' HZ-L Series support use in automotive-adjacent applications like 48 V battery monitors-provided system-level qualification is performed per customer requirements.
How does the noise performance of HZ36-3TD-P-E compare to generic Zener diodes?
The HZ36-3TD-P-E delivers approximately 1/3 to 1/10 the noise level of standard HZ-series Zeners due to optimized silicon planar processing and low-leakage junction design. This reduction directly improves signal-to-noise ratio in precision op-amp references and high-resolution ADC bias networks where diode noise dominates system floor.
Can HZ36-3TD-P-E be used in series or parallel configurations for higher voltage or current capability?
Series connection of HZ36-3TD-P-E units is discouraged due to mismatched temperature coefficients and dynamic impedances causing unequal voltage sharing. Parallel operation is also not recommended-minor VZ variations will cause current hogging. For higher voltage or power, select a single-device solution such as the HZ43-1L or discrete regulator ICs instead of stacking HZ36-3TD-P-E units.
HZ36-3TD-P-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:
- -
HZ36-3TD-P-E FAQ
1.How can I place an order for HZ36-3TD-P-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ36-3TD-P-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 HZ36-3TD-P-E reliable?
The price and inventory of HZ36-3TD-P-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ36-3TD-P-E is usually 5 days.
3.What payment methods are accepted for HZ36-3TD-P-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ36-3TD-P-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ36-3TD-P-E?
HZ36-3TD-P-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ36-3TD-P-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 HZ36-3TD-P-E?
For technical support, including HZ36-3TD-P-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ36-3TD-P-E requirements.
6.How does Aetrix verify that HZ36-3TD-P-E is sourced from the original manufacturer or authorized distributors?
All HZ36-3TD-P-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 HZ36-3TD-P-E meets industry standards.
7.What is the process for return or replacement of HZ36-3TD-P-E?
All HZ36-3TD-P-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ36-3TD-P-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 HZ36-3TD-P-E part is unused and in its original packaging.
Return procedure for HZ36-3TD-P-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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