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Renesas HZU36BTRF-E
- Part No.:
- HZU36BTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU36BTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:33,000
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Product details
Overview
HZU36BTRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits, with a nominal Zener voltage of 36 V (min 34.0 V, max 38.0 V at 2 mA), 200 mW power dissipation, and 90 Ω dynamic resistance at 2 mA test current.
For engineers reviewing the HZU36BTRF-E datasheet, HZU36BTRF-E pinout, HZU36BTRF-E application, or HZU36BTRF-E equivalent, this device serves as a surface-mount voltage reference in power supply feedback loops, sensor biasing networks, and overvoltage protection clamping stages where tight tolerance and thermal stability are required.
Technical Context
The HZU36BTRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage across its cathode-anode terminals under reverse-biased conditions. Its Zener breakdown mechanism provides predictable voltage regulation with a temperature coefficient of approximately –0.06 %/°C near 36 V, confirmed by Figure 2 of the datasheet.
It is rated for junction temperatures up to 150 °C and storage between –55 °C and +150 °C, with absolute maximum ratings defined for pulsed operation (40 ms pulse width). The device exhibits 2 μA maximum reverse leakage at VR = 27 V, ensuring low standby current in precision bias applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 34.0 V to 38.0 V at IZ = 2 mA - defines stable regulation range for feedback or reference use |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - limits continuous DC power handling in compact PCB layouts |
| Dynamic Resistance (rd) | 90 Ω at IZ = 2 mA - determines output impedance and load regulation sensitivity |
| Reverse Leakage (IR) | ≤2 μA at VR = 27 V - ensures minimal error current in high-impedance reference nodes |
| Junction Temperature (Tj) | 150 °C maximum - sets thermal derating boundary for reliability in enclosed environments |
| Package Type | URP (Ultra small Resin Package, SC-76A) - 0.8 mm × 1.5 mm footprint for space-constrained SMT designs |
Pinout & Package
URP (Ultra small Resin Package, JEITA code SC-76A) is a 2-pin surface-mount package with 0.8 mm × 1.5 mm body size and 0.004 g typical mass. Cathode is marked with a visible band on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to circuit ground or lower-potential rail; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | SC-76A footprint (0.8 mm × 1.5 mm) enables high-density placement in portable and IoT sensor modules |
| Taped and reel delivery | TRF taping (3,000 pcs/reel) supports automated SMT assembly without manual handling or static risk |
| Grade B Zener tolerance | ±5.6% total voltage spread (34.0–38.0 V) - suitable for non-critical stabilization where cost and size dominate |
| Pulse-tested characterization | All electrical specs validated using 40 ms pulses - ensures repeatability and avoids thermal runaway during testing |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 36 V bias to strain gauge bridges. Use Value: Maintains measurement linearity by holding bridge voltage within ±0.5% despite 10–30 V supply variation. |
Use Scenario: Generating a stable reference for ADC internal calibration in battery-powered edge nodes. IC Role / Device Role / Timing Role: Low-current Zener source feeding voltage divider into MCU's VREF+ pin. Use Value: Enables 12-bit ADC accuracy (±1 LSB) with <2 μA quiescent draw from coin-cell supply. |
| DC-DC Converter Feedback Clamp | Overvoltage Protection Limiter |
|
Use Scenario: Clamping optocoupler LED current in isolated flyback feedback loop. IC Role / Device Role / Timing Role: Zener clamp limiting TL431 cathode voltage to prevent saturation. Use Value: Prevents feedback loop instability by capping reference node at 36 V ±1.5 V across temperature. |
Use Scenario: Protecting 3.3 V logic inputs from accidental 24 V field wiring faults. IC Role / Device Role / Timing Role: High-voltage shunt limiter placed before series current-limiting resistor. Use Value: Clamps transient to ≤38 V while dissipating <200 mW, avoiding IC latch-up or ESD diode failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36LT1G | 36 V nominal, ±5% tolerance, SOT-23 package (2.9 mm × 1.3 mm), 350 mW Pd | Larger footprint and higher power rating; less suitable for ultra-dense layouts | Preferred when higher surge energy absorption or legacy SOT-23 board compatibility is required |
| MMSZ5245B-TP | 36 V nominal, ±5% tolerance, SOD-123 package (3.7 mm × 1.6 mm), 500 mW Pd | Double the power rating and 4.6× larger area; requires PCB real estate trade-off | Chosen for industrial power supplies needing margin above 200 mW continuous dissipation |
Compared with BZX84-C36LT1G and MMSZ5245B-TP, the HZU36BTRF-E offers the smallest PCB footprint (0.8 mm × 1.5 mm) and lowest assembly profile among 36 V Zeners, making it optimal for miniaturized sensor transmitters and wearable electronics where board space is constrained.
Availability
HZU36BTRF-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, low-power microcontroller reference design, and DC-DC converter feedback clamp applications requiring stable component supply and consistent tape-and-reel delivery.
Supply support for HZU36BTRF-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 manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZU Series belongs to Renesas' discrete Zener diode product line, engineered for compact, reliable voltage stabilization in space- and cost-sensitive consumer and industrial electronics.
FAQ
What is the Zener voltage tolerance of HZU36BTRF-E?
The HZU36BTRF-E has a Zener voltage range of 34.0 V to 38.0 V at 2 mA test current, corresponding to Grade B tolerance per the datasheet. This ±5.6% spread is verified under pulsed conditions (40 ms) and applies specifically to the HZU36BTRF-E variant, not broader HZU family members with B1/B2/B3 grading.
Is HZU36BTRF-E suitable for continuous DC operation?
Yes, the HZU36BTRF-E is rated for continuous DC operation up to 200 mW at 25 °C ambient, with derating per Figure 3 in the datasheet. At 70 °C ambient, its usable power drops to ~130 mW. It must be mounted on standard FR-4 PCB with adequate copper area to meet thermal requirements.
What does "TRF" signify in HZU36BTRF-E?
"TRF" indicates tape-and-reel packaging with 3,000 units per reel and STSP0002ZA-A carrier tape format. This designation confirms factory-standard SMT-ready delivery for automated placement, consistent with Renesas' ordering information table for the HZU Series.
Does HZU36BTRF-E have a specified temperature coefficient?
Yes - Figure 2 of the datasheet shows the Zener voltage temperature coefficient γZ for the HZU36BTRF-E is approximately –0.06 %/°C (or –21.6 mV/°C) near 36 V. This negative coefficient is inherent to its silicon planar Zener structure and must be accounted for in precision reference designs operating across –40 °C to +85 °C.
Can HZU36BTRF-E replace older HZU36B variants?
Yes - HZU36BTRF-E is the tape-and-reel packaged version of the HZU36B grade device, sharing identical electrical characteristics, URP package dimensions, and marking (36•). The "-E" suffix denotes RoHS-compliant lead-free finish, fully compatible with reflow profiles used for HZU36B.
HZU36BTRF-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:
- -
HZU36BTRF-E FAQ
1.How can I place an order for HZU36BTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU36BTRF-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 HZU36BTRF-E reliable?
The price and inventory of HZU36BTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU36BTRF-E is usually 5 days.
3.What payment methods are accepted for HZU36BTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU36BTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU36BTRF-E?
HZU36BTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU36BTRF-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 HZU36BTRF-E?
For technical support, including HZU36BTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU36BTRF-E requirements.
6.How does Aetrix verify that HZU36BTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU36BTRF-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 HZU36BTRF-E meets industry standards.
7.What is the process for return or replacement of HZU36BTRF-E?
All HZU36BTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU36BTRF-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 HZU36BTRF-E part is unused and in its original packaging.
Return procedure for HZU36BTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU36BTRF-E Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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BZT52C3V6LP-7
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