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Renesas HZS36-3TD-E
- Part No.:
- HZS36-3TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS36-3TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:12,724
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Product details
Overview
HZS36-3TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in stabilized power supplies, featuring a nominal zener voltage of 36.4–38.0 V at 2 mA test current, 400 mW maximum power dissipation, 27.0 Ω dynamic resistance, and −55 to +175 °C storage temperature range - deployed in industrial control power rails and analog sensor reference circuits.
For engineers reviewing the HZS36-3TD-E datasheet, HZS36-3TD-E pinout, HZS36-3TD-E application, or HZS36-3TD-E equivalent, key selection criteria include verified zener voltage tolerance (±0.8 V), low leakage (<1 µA at VR = 0.5×VZ), thermal coefficient behavior (−0.06 %/°C typical), and MHD package compatibility with 5 mm-pitch automated insertion.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage by conducting reverse current above its specified breakdown threshold. Its planar junction construction ensures consistent zener impedance and low temperature drift across ambient conditions.
Rated for 400 mW power dissipation at 25 °C with derating to zero at 150 °C, it supports operation up to 200 °C junction temperature and exhibits <100 µA reverse leakage at 0.5×VZ - enabling reliable performance in compact, thermally constrained designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4–38.0 V at IZ = 2 mA - defines precise regulation point for mid-range DC supply stabilization |
| Dynamic Resistance (rd) | 27.0 Ω max at IZ = 2 mA - determines load regulation sensitivity and ripple rejection capability |
| Power Dissipation (Pd) | 400 mW at Ta = 25 °C - sets maximum continuous power handling before thermal derating begins |
| Reverse Leakage (IR) | <1 µA at VR = 18.2 V - ensures minimal standby current in high-impedance bias networks |
| Junction Temperature (Tj) | 200 °C max - allows operation in elevated-temperature industrial environments without derating penalty |
| Storage Temperature | −55 to +175 °C - supports long-term reliability in automotive under-hood and factory automation storage |
Pinout & Package
The HZS36-3TD-E is housed in the MHD package (JEITA code GRZZ0002ZC-A), a radial-leaded, epoxy-molded, 2-pin through-hole device with cathode band marking and 5 mm lead pitch - optimized for high-speed automatic insertion and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated output rail; carries full zener current during regulation |
| 2 (Anode) | Low-side return path | Connected to ground or common reference; completes current loop for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 27.0 Ω max enables tight voltage regulation under varying load currents |
| Wide VZ spectrum | 1.6–38 V family coverage allows single-source design reuse across multiple supply rails |
| Automated insertion compatibility | 5 mm pitch and MHD mechanical profile support high-throughput PCB assembly |
| Stable temperature coefficient | −0.06 %/°C typical minimizes drift over industrial temperature ranges (−40 to +85 °C) |
Applications
| Industrial Power Monitoring | Analog Sensor Reference |
|---|---|
|
Use Scenario: Voltage supervision circuit in PLC I/O modules detecting 24 V DC rail undervoltage faults. IC Role / Device Role / Timing Role: Shunt reference providing stable 36.4–38.0 V threshold for comparator input. Use Value: Enables accurate ±0.8 V trip-point detection without external trimming, reducing BOM count and calibration steps. |
Use Scenario: Precision reference for 16-bit ADC in industrial temperature transmitters. IC Role / Device Role / Timing Role: Zener-based reference source replacing higher-cost bandgap ICs in cost-sensitive designs. Use Value: Delivers <1 µA leakage and 27.0 Ω impedance to maintain ADC INL within ±1 LSB over temperature. |
| DC-DC Feedback Clamp | Overvoltage Protection |
|
Use Scenario: Secondary-side voltage clamp in isolated flyback converters regulating 36 V output. IC Role / Device Role / Timing Role: Passive feedback element setting upper limit on optocoupler drive current. Use Value: Maintains regulation accuracy within ±0.8 V while surviving transient surges up to 200 °C junction temperature. |
Use Scenario: Crowbar trigger in telecom power distribution units protecting downstream 36 V logic rails. IC Role / Device Role / Timing Role: Fast-acting voltage-sensing element initiating SCR gate firing during overvoltage events. Use Value: Responds within nanoseconds to >38.0 V excursions due to low capacitance and predictable breakdown knee. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4738A (ON Semiconductor) | 39 V nominal VZ, 1 W Pd, DO-41 package, ±5 % tolerance | Higher power and looser tolerance; suited for non-critical 39 V clamping | Select when higher surge energy handling is required and ±0.8 V tolerance is not mandatory |
| BZX55-C36 (Vishay) | 36 V nominal VZ, 500 mW Pd, DO-35 package, ±5 % tolerance | Same nominal voltage but wider tolerance and different package footprint | Choose for legacy DO-35 board compatibility where MHD insertion is unavailable |
Compared with HZS36-3TD-E, the 1N4738A offers greater power margin but sacrifices precision and thermal stability, while the BZX55-C36 matches nominal voltage but lacks the tight ±0.8 V tolerance and −0.06 %/°C coefficient critical for industrial measurement-grade references.
Availability
HZS36-3TD-E is available at Aetrix Electronics and suitable for industrial power monitoring, analog sensor reference, DC-DC feedback clamp, and overvoltage protection requiring stable component supply with guaranteed long-term sourcing.
Supply support for HZS36-3TD-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 HZS Series is part of Renesas' discrete Zener diode portfolio engineered specifically for high-stability voltage reference and regulation in industrial power systems - emphasizing tight tolerance, low impedance, and automated assembly readiness.
FAQ
What is the exact zener voltage range for HZS36-3TD-E?
The HZS36-3TD-E has a guaranteed zener voltage range of 36.4 V to 38.0 V when tested at 2 mA reverse current and 25 °C ambient temperature. This ±0.8 V tolerance is tighter than standard Zener diodes and supports precision regulation in industrial power supplies where HZS36-3TD-E serves as the primary voltage reference node.
Does HZS36-3TD-E support automated PCB assembly?
Yes, HZS36-3TD-E uses the MHD package with 5 mm lead pitch and standardized radial lead geometry, making it compatible with high-speed automatic insertion equipment and wave soldering processes. Its mechanical dimensions and cathode band marking are fully aligned with GRZZ0002ZC-A JEITA specifications - a key reason HZS36-3TD-E is selected for volume industrial manufacturing.
What is the maximum junction temperature rating for HZS36-3TD-E?
HZS36-3TD-E is rated for a maximum junction temperature of 200 °C, significantly exceeding typical commercial-grade Zener diodes. This allows sustained operation in thermally demanding environments such as motor drive control boards or enclosed power supplies where HZS36-3TD-E maintains regulation integrity without thermal shutdown or parameter shift.
How does the dynamic resistance of HZS36-3TD-E affect regulation performance?
HZS36-3TD-E specifies a maximum dynamic resistance of 27.0 Ω at 2 mA test current, directly determining how much output voltage shifts under load variation. Lower rd means superior line and load regulation - critical when HZS36-3TD-E is used in analog sensor references or feedback networks where even 10 mV drift degrades system accuracy.
Is HZS36-3TD-E RoHS compliant and lead-free?
Yes, HZS36-3TD-E conforms to EU RoHS Directive requirements and is manufactured as a lead-free device. Renesas confirms environmental compliance per REJ03G0184-0500 Rev.5.00 documentation, and HZS36-3TD-E carries no exemptions - supporting clean manufacturing and end-of-life compliance for global industrial electronics using HZS36-3TD-E.
HZS36-3TD-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:
- -
HZS36-3TD-E FAQ
1.How can I place an order for HZS36-3TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS36-3TD-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 HZS36-3TD-E reliable?
The price and inventory of HZS36-3TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS36-3TD-E is usually 5 days.
3.What payment methods are accepted for HZS36-3TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS36-3TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS36-3TD-E?
HZS36-3TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS36-3TD-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 HZS36-3TD-E?
For technical support, including HZS36-3TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS36-3TD-E requirements.
6.How does Aetrix verify that HZS36-3TD-E is sourced from the original manufacturer or authorized distributors?
All HZS36-3TD-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 HZS36-3TD-E meets industry standards.
7.What is the process for return or replacement of HZS36-3TD-E?
All HZS36-3TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS36-3TD-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 HZS36-3TD-E part is unused and in its original packaging.
Return procedure for HZS36-3TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZS36-3TD-E Tags
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MM5Z5V1ST1G
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