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Renesas HZK36-3-90TR
- Part No.:
- HZK36-3-90TR
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZK36-3-90TR.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:77,500
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Product details
Overview
HZK36-3-90TR from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies. It delivers a nominal zener voltage of 36 V (min 34.2 V, max 38.0 V) at 2 mA test current, with dynamic resistance of 140 Ω, maximum power dissipation of 500 mW, and operates within –55°C to +175°C storage temperature range. It is used in industrial power supply feedback loops requiring stable reference voltage.
For engineers reviewing the HZK36-3-90TR datasheet, HZK36-3-90TR pinout, HZK36-3-90TR application, or HZK36-3-90TR equivalent, key selection criteria include verified zener voltage tolerance (±5.6% at 36 V), low leakage (<1 µA at 27 V), thermal coefficient behavior (≈+0.07 %/°C), LLD surface-mount package compatibility, and compliance with Renesas Standard-grade quality classification for industrial equipment.
Technical Context
The HZK36-3-90TR employs a silicon epitaxial planar junction structure optimized for low dynamic impedance and stable breakdown characteristics under DC bias. Its zener voltage is specified at 2 mA, with reverse current limited to ≤1 µA at VR = 27 V - ensuring minimal quiescent error in reference circuits.
Thermal performance is defined by a junction temperature limit of 175°C and a zener voltage temperature coefficient of approximately +0.07 %/°C near 36 V, indicating positive drift with temperature - critical for compensating other circuit elements in closed-loop regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.2 V to 38.0 V at IZ = 2 mA - defines stable regulation window for feedback node design |
| Dynamic Resistance (rd) | 140 Ω max at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 500 mW max at Ta = 25°C - sets thermal derating boundary for PCB layout and copper area |
| Reverse Current (IR) | ≤1 µA at VR = 27 V - ensures negligible error current in high-impedance reference paths |
| Junction Temperature (Tj) | 175°C max - constrains maximum allowable power under ambient thermal conditions |
| Package | LLD (leadless, surface-mount) - enables high-density placement and automated assembly |
Pinout & Package
LLD package: 2-terminal surface-mount device with cathode band marking; no internal leads or exposed die pad. Dimensions per JEITA standard: 1.4 ± 0.1 mm diameter, 3.5 mm height, mass ≈ 0.027 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Breakdown terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation |
| 2 (Anode) | Reference terminal | Typically grounded or tied to lower potential; forms reference path for feedback divider |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 140 Ω max ensures tight regulation under varying load currents in feedback networks |
| Wide zener voltage range | 34.2–38.0 V supports precise mid-range voltage references without external trimming |
| High power rating | 500 mW allows use in higher-current shunt regulator topologies without derating |
| Stable temperature coefficient | +0.07 %/°C enables predictable drift compensation in industrial temperature ranges |
| LLD surface-mount package | Compact 1.4 mm diameter footprint supports dense PCB layouts and reflow-compatible assembly |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated DC-DC converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener reference element setting upper threshold of TL431-like feedback network. Use Value: Tight 36 V tolerance and low rd minimize output variation across line/load/temperature. |
Use Scenario: Clamping transient surges on 24 V rail in factory automation I/O modules. IC Role / Device Role / Timing Role: Shunt protection device limiting voltage excursion during ESD or inductive kick events. Use Value: 500 mW rating and fast response enable single-device clamping without series resistor overhead. |
| Programmable Reference Source | Temperature-Compensated Bias Generator |
Use Scenario: Providing stable reference for analog-to-digital converter (ADC) input scaling circuits. IC Role / Device Role / Timing Role: Precision voltage source establishing known full-scale input range. Use Value: Low leakage (<1 µA) prevents loading errors in high-impedance divider networks. |
Use Scenario: Generating bias current for op-amp input stages in wide-temperature-range instrumentation. IC Role / Device Role / Timing Role: Zener-based current source with predictable thermal drift. Use Value: +0.07 %/°C coefficient allows matching with complementary transistor β drift for net-zero TC design. |
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) | Zener voltage 22 V (not 36 V); 1 W rating; DO-41 through-hole package | Not suitable for 36 V reference; requires PCB layout change and thermal redesign | Select only if system voltage level and packaging constraints align with 22 V and through-hole assembly |
| BZX84-C36 (Diodes Inc.) | Zener voltage 36 V ±5%; 300 mW rating; SOT-23 package; rd = 150 Ω typical | Lower power rating limits continuous shunt duty; smaller SOT-23 footprint reduces thermal mass | Acceptable for low-power reference use where 300 mW suffices and SOT-23 board space is prioritized |
Compared with HZK36-3-90TR, the BZX84-C36 offers identical nominal voltage but reduced power handling and higher dynamic resistance, while the 1N4738A provides higher power but mismatched voltage and incompatible packaging - making HZK36-3-90TR optimal for 36 V, 500 mW, LLD-mounted industrial reference designs.
Availability
HZK36-3-90TR is available at Aetrix Electronics and suitable for industrial power supplies, overvoltage protection circuits, and programmable reference sources requiring stable component supply and long-term manufacturability.
Supply support for HZK36-3-90TR 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 manufacturer headquartered in Tokyo, Japan, specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and consumer markets.
The HZK Series is part of Renesas' legacy discrete portfolio, engineered specifically for stable voltage reference and regulation in industrial-grade power conversion systems - emphasizing low leakage, repeatable zener characteristics, and robust thermal performance.
FAQ
What is the exact zener voltage range for HZK36-3-90TR?
The HZK36-3-90TR has a guaranteed zener voltage range of 34.2 V to 38.0 V when tested at IZ = 2 mA and Ta = 25°C. This ±5.6% tolerance reflects the "HZK36" grade designation in the Renesas datasheet Rev.3.00, and applies directly to the HZK36-3-90TR variant as confirmed by its marking code (Light Blue/White/Pink) and LLD packaging.
Is HZK36-3-90TR RoHS compliant?
Yes, HZK36-3-90TR complies with the EU RoHS Directive as a Renesas Standard-grade product manufactured after 2003. The device contains no lead in solderable terminations and meets all restricted substance thresholds per Renesas environmental policy documentation referenced in the datasheet notice section.
What does the "-3-90TR" suffix indicate in HZK36-3-90TR?
The "-3-90TR" suffix denotes tape-and-reel packaging (TR), with "3" indicating the specific reel size (3,000 pcs/reel) and "90" referencing the orientation and carrier specification per Renesas internal ordering conventions. This matches the LLD package and confirms surface-mount compatibility for automated pick-and-place systems.
Can HZK36-3-90TR replace HZK36 without modification?
Yes - HZK36-3-90TR is a direct packaging variant of the base HZK36 device, sharing identical electrical specifications, thermal ratings, and pinout. The "-3-90TR" suffix adds only tape-and-reel logistics; no circuit or layout changes are required when substituting HZK36-3-90TR for bulk or alternate packaged HZK36 units.
What is the maximum reverse current specification for HZK36-3-90TR?
The maximum reverse current for HZK36-3-90TR is 1 µA at VR = 27 V and Ta = 25°C, as specified in the Electrical Characteristics table on page 3 of the Renesas HZK Series datasheet Rev.3.00. This low leakage ensures minimal error contribution in high-impedance reference divider networks used with the HZK36-3-90TR.
HZK36-3-90TR 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:
- -
HZK36-3-90TR FAQ
1.How can I place an order for HZK36-3-90TR through Aetrix?
Please submit a Request for Quotation (RFQ) for HZK36-3-90TR 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 HZK36-3-90TR reliable?
The price and inventory of HZK36-3-90TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZK36-3-90TR is usually 5 days.
3.What payment methods are accepted for HZK36-3-90TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZK36-3-90TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZK36-3-90TR?
HZK36-3-90TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZK36-3-90TR 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 HZK36-3-90TR?
For technical support, including HZK36-3-90TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZK36-3-90TR requirements.
6.How does Aetrix verify that HZK36-3-90TR is sourced from the original manufacturer or authorized distributors?
All HZK36-3-90TR 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 HZK36-3-90TR meets industry standards.
7.What is the process for return or replacement of HZK36-3-90TR?
All HZK36-3-90TR units undergo pre-shipment inspection (PSI). If there is an issue with HZK36-3-90TR, 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 HZK36-3-90TR part is unused and in its original packaging.
Return procedure for HZK36-3-90TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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