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Renesas HZU22B1TRF-E
- Part No.:
- HZU22B1TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU22B1TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:36,000
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Product details
Overview
HZU22B1TRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and power-supply reference circuits, featuring a nominal Zener voltage of 22.93 V to 23.96 V at 5 mA test current, 55 Ω dynamic resistance, and 200 mW power dissipation in an ultra-small URP (SC-76A) surface-mount package.
For engineers reviewing the HZU22B1TRF-E datasheet, HZU22B1TRF-E pinout, HZU22B1TRF-E application, or HZU22B1TRF-E equivalent, this device is selected for compact voltage regulation, overvoltage protection clamping, and reference generation where tight voltage tolerance (±2.2% at 25°C), low thermal drift, and high reliability in industrial-grade ambient conditions up to +150°C are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 5 mA, delivering stable regulation across its rated junction temperature range (–55°C to +150°C). Its ultra-small URP package enables high-density PCB layouts while maintaining thermal performance via direct die-to-pad conduction.
The device exhibits a negative temperature coefficient near –0.04 %/°C at 22 V, supporting predictable drift behavior in temperature-sensitive references. Its 17.0 mA maximum reverse current at VR = 2 V ensures robust leakage control under sub-threshold bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.93 V to 23.96 V at IZ = 5 mA - defines precise regulation point for feedback loops and reference rails |
| Dynamic Resistance (rd) | 55 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating |
| Reverse Current (IR) | 2 µA max at VR = 2 V - ensures minimal standby leakage in battery-backed or low-quiescent circuits |
| Junction Temperature (Tj) | 150°C max - supports operation in enclosed industrial enclosures without forced cooling |
| Package | URP (SC-76A), 0.8 mm × 0.8 mm footprint - enables 0201-class board space efficiency with standard reflow compatibility |
Pinout & Package
Ultra-small Resin Package (URP, JEITA code SC-76A), 2-terminal surface-mount device with cathode marked by dot on top surface. Dimensions: 0.8 mm × 0.8 mm × 0.45 mm (max height), mass ≈ 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity must be observed for correct reverse-bias operation |
| 2 | Anode | Connected to ground or lower-potential rail; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Taped packaging (TRF) | 3,000 pcs/reel - supports automated SMT placement without manual handling or static risk |
| Grade B1 tolerance | ±2.2% Zener voltage spread - enables tighter system-level voltage accuracy without post-calibration |
| Low dynamic resistance | 55 Ω max - minimizes output voltage shift under varying load currents in shunt regulator designs |
| High junction temperature rating | 150°C - allows deployment in thermally constrained environments such as sealed power modules |
| Ultra-compact URP footprint | 0.8 mm × 0.8 mm - reduces PCB area by >50% vs. SOD-323, critical for space-constrained IoT sensors |
Applications
| Industrial Power Supply Reference | Overvoltage Clamp in Sensor Interface |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated DC-DC converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Zener diode provides fixed reference voltage for optocoupler-based feedback loop. Use Value: Tight 22.93–23.96 V tolerance ensures ±1% output regulation accuracy across line/load variations. |
Use Scenario: Protecting ADC input pins from transient surges in 24 V industrial fieldbus nodes. IC Role / Device Role / Timing Role: Shunt clamp limits input voltage to safe levels during ESD or inductive kick events. Use Value: 200 mW Pd and 55 Ω rd enable fast clamping response without thermal runaway under repeated 1 kV EFT pulses. |
| Portable Equipment Voltage Monitor | Temperature-Stable Reference Generator |
|
Use Scenario: Monitoring battery pack voltage in handheld medical devices using microcontroller ADC. IC Role / Device Role / Timing Role: Zener establishes known threshold for low-battery detection comparator. Use Value: Negative TC (–0.04 %/°C) compensates for typical Li-ion voltage drop with temperature, improving state-of-charge accuracy. |
Use Scenario: Generating stable bias for precision op-amp circuits in calibration equipment. IC Role / Device Role / Timing Role: Provides low-noise, low-drift reference voltage for gain-setting networks. Use Value: 2 µA IR at 2 V ensures negligible loading on high-impedance divider networks, preserving accuracy. |
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-C24LT1G | Zener voltage 22.8–25.2 V (±5%), 350 mW Pd, SOT-23 package (1.3 mm × 0.8 mm) | Higher power but larger footprint; less precise voltage grade | Select when higher surge energy handling is needed and board space permits larger package |
| MMSZ5247B-TP | Zener voltage 22.8–24.2 V (±5%), 500 mW Pd, SOD-123 package (2.7 mm × 1.6 mm) | Higher power and thermal mass, but 3.4× larger PCB area than URP | Prefer for high-reliability automotive modules requiring extended thermal cycling margin |
Compared with HZU22B1TRF-E, BZX84-C24LT1G offers greater surge capability in a slightly larger SOT-23, while MMSZ5247B-TP trades miniaturization for enhanced thermal stability in legacy SOD-123 layouts - neither matches the HZU22B1TRF-E's combination of 0.8 mm × 0.8 mm size, ±2.2% grading, and 150°C Tj.
Availability
HZU22B1TRF-E is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface protection circuits, portable medical device voltage monitoring, and precision reference generation requiring stable component supply with full traceability and lifecycle management.
Supply support for HZU22B1TRF-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, with headquarters in Tokyo and design centers worldwide.
The HZU Series belongs to Renesas' discrete Zener diode product line, engineered specifically for compact, high-precision voltage stabilization in space-constrained industrial and consumer electronics.
FAQ
What is the Zener voltage tolerance of HZU22B1TRF-E at 25°C?
The HZU22B1TRF-E has a Zener voltage range of 22.93 V to 23.96 V at IZ = 5 mA and Ta = 25°C, corresponding to a ±2.2% tolerance band per Grade B1 specification. This tight grading enables accurate voltage referencing without trimming in production systems.
Does HZU22B1TRF-E support reflow soldering per J-STD-020?
Yes, HZU22B1TRF-E is qualified for standard lead-free reflow processes per J-STD-020. Its URP package withstands peak temperatures up to 260°C for 30 seconds, and the device is shipped in TRF tape-and-reel format compatible with high-speed pick-and-place equipment.
What is the maximum reverse current for HZU22B1TRF-E at 2 V applied?
The maximum reverse current for HZU22B1TRF-E is 2 µA when 2 V is applied across its terminals (VR = 2 V) at Ta = 25°C. This low leakage supports use in battery-powered systems where standby current must remain below 5 µA.
How does the temperature coefficient of HZU22B1TRF-E affect long-term stability?
HZU22B1TRF-E exhibits a temperature coefficient of approximately –0.04 %/°C near 22 V, meaning its Zener voltage decreases by ~9.2 mV per °C rise. This predictable negative drift allows compensation in temperature-critical references, especially when paired with positive-TC components.
Is HZU22B1TRF-E RoHS compliant and halogen-free?
Yes, HZU22B1TRF-E complies with EU RoHS Directive 2011/65/EU and is halogen-free per Renesas' material declarations. The URP package uses lead-free terminations and environmentally compliant molding compounds, verified through standardized IEC 62321 testing.
HZU22B1TRF-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:
- -
HZU22B1TRF-E FAQ
1.How can I place an order for HZU22B1TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU22B1TRF-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 HZU22B1TRF-E reliable?
The price and inventory of HZU22B1TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU22B1TRF-E is usually 5 days.
3.What payment methods are accepted for HZU22B1TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU22B1TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU22B1TRF-E?
HZU22B1TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU22B1TRF-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 HZU22B1TRF-E?
For technical support, including HZU22B1TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU22B1TRF-E requirements.
6.How does Aetrix verify that HZU22B1TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU22B1TRF-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 HZU22B1TRF-E meets industry standards.
7.What is the process for return or replacement of HZU22B1TRF-E?
All HZU22B1TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU22B1TRF-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 HZU22B1TRF-E part is unused and in its original packaging.
Return procedure for HZU22B1TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU22B1TRF-E Tags
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