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Renesas HZS36-2TA-E
- Part No.:
- HZS36-2TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS36-2TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:4,500
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Product details
Overview
HZS36-2TA-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, and low dynamic resistance of 140 Ω, commonly deployed in industrial power rail clamping and reference circuits.
For engineers reviewing the HZS36-2TA-E datasheet, HZS36-2TA-E pinout, HZS36-2TA-E application, or HZS36-2TA-E equivalent, this device serves as a discrete voltage reference with tight tolerance (±5% grade), low leakage, and thermal stability suitable for mid-voltage analog monitoring, overvoltage protection, and feedback loop referencing in DC-DC converters and linear regulators.
Technical Context
The HZS36-2TA-E operates as a two-terminal, reverse-biased semiconductor junction optimized for stable breakdown behavior under controlled DC current. Its zener voltage exhibits a positive temperature coefficient (~+0.07 %/°C at 36 V), enabling predictable drift compensation in temperature-sensitive references.
It uses a silicon planar construction with glass-passivated junctions, rated for junction temperatures up to 200°C and storage from −55°C to +175°C. The device is characterized at 2 mA zener test current, with reverse current limited to ≤1 µA at VR = 29.2 V, ensuring minimal standby power loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36.4–38.0 V at IZ = 2 mA - defines precise clamping threshold for 36 V nominal rails |
| Dynamic Resistance (rd) | 140 Ω max at IZ = 2 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Leakage (IR) | ≤1 µA at VR = 29.2 V - enables low-quiescent-current biasing in high-impedance reference networks |
| Junction Temperature (Tj) | 200°C max - allows reliable operation in high-ambient industrial environments (e.g., motor drives, PLCs) |
| Package Type | MHD (Mini-High-Density) - surface-mount compatible with 5 mm pitch automated insertion and standard reflow profiles |
Pinout & Package
Package: MHD (Mini-High-Density), epoxy-molded, axial-leaded package with cathode band marking; dimensions per JEITA code GRZZ0002ZC-A (L = 26.0 mm, φD = 2.0 mm, E = 2.4 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown Anode Connection | Connected to higher-potential node in reverse-bias configuration; carries regulated output current |
| 2 (Anode) | Reference Ground Node | Typically tied to system ground or feedback node; establishes reference potential for voltage stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener Impedance | 140 Ω max ensures <±10 mV output shift under ±0.1 mA load change in reference applications |
| Wide Zener Voltage Range | 36.4–38.0 V span supports compatibility with 36 V industrial bus standards and legacy 3.3 V/5 V LDO feedback scaling |
| High-Temperature Operation | 200°C junction rating enables use in enclosed enclosures or near heat-generating components without derating |
| Automated Insertion Compatibility | 5 mm pitch and MHD form factor allow direct integration into high-volume SMT assembly lines with no manual handling |
Applications
| Industrial Power Supply Clamping | DC-DC Converter Feedback Reference |
|---|---|
Use Scenario: Protection of 36 V input rails against transient overvoltage in programmable logic controllers and motor drive control boards. IC Role / Device Role / Timing Role: Discrete voltage clamp limiting peak rail excursions to safe levels for downstream regulators and microcontrollers. Use Value: Prevents latch-up or damage to 3.3 V/5 V logic by clamping surges above 38 V with sub-µA leakage below operating threshold. |
Use Scenario: Precision voltage reference for optocoupler-based isolated feedback in 36 V-output flyback converters. IC Role / Device Role / Timing Role: Stable zener node establishing accurate secondary-side regulation setpoint independent of primary-side variations. Use Value: Maintains ±2% output regulation across line/load/temperature due to low rd and predictable γZ. |
| Overvoltage Detection Circuit | Analog Sensor Signal Conditioning |
Use Scenario: Threshold detection in battery management systems monitoring 36 V LiFePO4 string voltage. IC Role / Device Role / Timing Role: Zener-based comparator input reference triggering shutdown when cell voltage exceeds 38.0 V. Use Value: Enables deterministic trip point with <100 ppm/°C drift, eliminating need for active op-amp reference circuitry. |
Use Scenario: Biasing and level-shifting for 4–20 mA transmitter outputs interfacing with 36 V-powered field instrumentation. IC Role / Device Role / Timing Role: Provides stable 36 V reference for current-loop compliance and sensor excitation. Use Value: Reduces calibration drift to <0.05%/°C via matched temperature coefficient with associated op-amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4738A (ON Semiconductor) | Zener voltage 22.0–24.2 V, Pd = 1 W, DO-41 package | Higher power but lower voltage; unsuitable for 36 V clamping without series stacking | Select only if higher power handling and lower voltage are required; not a direct functional substitute |
| BZX84-C36 (Diodes Inc.) | Zener voltage 34.2–37.8 V, Pd = 300 mW, SOT-23 package | Smaller footprint and lower power; tighter voltage tolerance but reduced thermal margin | Prefer for space-constrained PCBs where 300 mW suffices and reflow compatibility is critical |
Compared with 1N4738A and BZX84-C36, the HZS36-2TA-E delivers optimal balance of 36 V regulation accuracy, 400 mW dissipation headroom, and industrial-grade thermal robustness in an MHD package suited for automated manufacturing-making it uniquely appropriate for ruggedized 36 V power monitoring and clamping tasks.
Availability
HZS36-2TA-E is available at Aetrix Electronics and suitable for industrial power supply clamping, DC-DC converter feedback referencing, and overvoltage detection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZS36-2TA-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 was developed as a family of precision silicon planar Zener diodes targeting cost-effective, high-reliability voltage stabilization in industrial power systems and analog signal conditioning circuits.
FAQ
What is the exact zener voltage range specified for HZS36-2TA-E?
The HZS36-2TA-E has a guaranteed zener voltage range of 36.4 V to 38.0 V when tested at IZ = 2 mA and Ta = 25°C, corresponding to the "-2" grade within the HZS36 family per Renesas datasheet REJ03G0184-0500 Rev.5.00. This tolerance reflects ±5% deviation around the nominal 36 V rating, and the device maintains this specification across its qualified operating temperature range.
Does HZS36-2TA-E support surface-mount assembly or require through-hole mounting?
HZS36-2TA-E uses the MHD (Mini-High-Density) package, which is a radial-leaded, epoxy-molded form factor designed for high-speed automatic insertion on 5 mm pitch PCBs. While not a surface-mount device like SOT-23, it is fully compatible with wave soldering and selective reflow processes used in modern mixed-technology assembly lines-Renesas explicitly confirms suitability for 5 mm-pitch high-speed automatic insertion in the official datasheet.
What is the maximum allowable reverse current before breakdown for HZS36-2TA-E?
Per the Electrical Characteristics table on page 4 of the Renesas datasheet, the HZS36-2TA-E guarantees reverse current IR ≤ 1 µA when reverse voltage VR = 29.2 V at Ta = 25°C. This low leakage ensures minimal power loss and high impedance in pre-breakdown states, critical for precision reference and high-impedance sensing applications where bias current must be tightly controlled.
Can HZS36-2TA-E be used in automotive applications?
The HZS36-2TA-E is classified as a "Standard" quality grade device per Renesas' product grading system (Section 7 of the datasheet), intended for industrial, office, and communications equipment-not automotive or safety-critical systems. It lacks AEC-Q200 qualification and is not recommended for under-hood or chassis-control applications without additional validation and formal written consent from Renesas Electronics.
How does the temperature coefficient of HZS36-2TA-E affect its performance in wide-temperature environments?
The HZS36-2TA-E exhibits a positive zener voltage temperature coefficient of approximately +0.07 %/°C (or ~+25 mV/°C) near 36 V, as shown in Figure 2 of the datasheet. This means its regulated voltage increases linearly with ambient temperature-designers must account for this drift in closed-loop feedback or precision measurement circuits, especially over −40°C to +125°C industrial ranges, where total shift may exceed ±500 mV.
HZS36-2TA-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:
- -
HZS36-2TA-E FAQ
1.How can I place an order for HZS36-2TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS36-2TA-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 HZS36-2TA-E reliable?
The price and inventory of HZS36-2TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS36-2TA-E is usually 5 days.
3.What payment methods are accepted for HZS36-2TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS36-2TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS36-2TA-E?
HZS36-2TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS36-2TA-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 HZS36-2TA-E?
For technical support, including HZS36-2TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS36-2TA-E requirements.
6.How does Aetrix verify that HZS36-2TA-E is sourced from the original manufacturer or authorized distributors?
All HZS36-2TA-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 HZS36-2TA-E meets industry standards.
7.What is the process for return or replacement of HZS36-2TA-E?
All HZS36-2TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS36-2TA-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 HZS36-2TA-E part is unused and in its original packaging.
Return procedure for HZS36-2TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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