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Renesas HZU22B3TRF-E
- Part No.:
- HZU22B3TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU22B3TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
HZU22B3TRF-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 22.23 V to 23.17 V at 5 mA test current, 55 Ω dynamic resistance, and 200 mW power dissipation in an ultra-small URP surface-mount package.
For engineers reviewing the HZU22B3TRF-E datasheet, HZU22B3TRF-E pinout, HZU22B3TRF-E application, or HZU22B3TRF-E equivalent, this device serves as a compact, tape-and-reel–ready voltage reference for power supply regulation, overvoltage protection, and biasing in space-constrained industrial and consumer electronics.
Technical Context
The HZU22B3TRF-E operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load currents by conducting reverse-biased Zener breakdown. Its graded B3 tolerance (±4.3% Zener voltage spread) enables tighter system-level voltage calibration than standard-grade variants.
Thermal derating follows a linear 200 mW maximum at 25°C ambient, decreasing to zero at 150°C junction temperature, with storage rated from –55°C to +150°C. The device uses silicon planar construction for consistent breakdown characteristics and low leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.23 V to 23.17 V at IZ = 5 mA - defines stable regulation point for feedback networks 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 DC or pulsed power handling in PCB layout |
| Reverse Current (IR) | 2 μA max at VR = 17.0 V - ensures minimal standby leakage in high-impedance bias networks |
| Junction Temperature (Tj) | 150°C maximum - constrains thermal design margin for enclosed or high-ambient environments |
| Package | URP (SC-76A), 1.55 × 0.80 × 0.45 mm - enables 0201-class board area usage with automated SMT placement |
Pinout & Package
URP (Ultra Small Resin Package) is a 2-pin surface-mount package conforming to JEITA code PTSP0002ZA-A and industry-standard SC-76A footprint. It features a cathode-marked top-side marking and is optimized for high-density PCB assembly.
| 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 |
|---|---|
| Taped packaging (TRF) | 3,000 pcs/reel - supports high-speed pick-and-place assembly without manual handling or static risk |
| B3 grade Zener tolerance | ±4.3% voltage spread - reduces post-production calibration effort in precision reference designs |
| Low dynamic resistance | 55 Ω max - improves line and load regulation performance vs. general-purpose Zeners |
| Ultra-small URP footprint | 1.55 × 0.80 mm - saves >60% board area compared to SOD-323 while maintaining thermal reliability |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 22.5 V bias to Wheatstone bridge, rejecting supply ripple. Use Value: Enables <±0.5% full-scale accuracy despite ±10% input rail variation due to low rd and tight VZ tolerance. |
Use Scenario: Generating precise 22 V auxiliary rail for PD controller logic and gate drivers in compact USB-C adapters. IC Role / Device Role / Timing Role: Secondary Zener clamp regulating isolated auxiliary supply derived from flyback transformer winding. Use Value: Maintains stable logic supply under transient load steps without requiring LDO post-regulation, reducing BOM count. |
| Programmable Logic Controller I/O Protection | Medical Infusion Pump Voltage Monitor |
|
Use Scenario: Overvoltage clamping on 24 V digital input channels exposed to field wiring transients. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting input to safe MCU GPIO levels during ESD or inductive kick events. Use Value: Responds within nanoseconds to 1 kV/μs surges while dissipating ≤200 mW peak energy per event, avoiding latch-up. |
Use Scenario: Monitoring battery pack voltage in portable infusion pumps to trigger low-battery alerts at 22.0 V threshold. IC Role / Device Role / Timing Role: Precision comparator reference enabling accurate end-of-life detection with <0.1 V hysteresis. Use Value: B3-grade VZ stability ensures alert timing remains within ±2 minutes across –20°C to +70°C operating range. |
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-C22LT1G | 22 V nominal, ±5% tolerance, 90 Ω rd, SOT-23 package (2.9 × 1.3 mm) | Larger footprint; higher dynamic resistance degrades regulation under variable load | Preferred when existing SOT-23 layout prohibits URP rework but tighter VZ tolerance is noncritical |
| MMSZ5248B-TP | 22 V nominal, ±5% tolerance, 30 Ω rd, SOD-123 package (3.7 × 1.6 mm) | Lower rd improves regulation, but 2.3× larger area limits high-density designs | Chosen when lowest possible output impedance is prioritized over board space in medical or test equipment |
Compared with BZX84-C22LT1G and MMSZ5248B-TP, the HZU22B3TRF-E delivers superior voltage accuracy (B3 grade) and smallest PCB footprint among 22 V Zeners, making it optimal for miniaturized industrial controllers and portable diagnostics where both precision and size matter.
Availability
HZU22B3TRF-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power delivery reference, PLC I/O protection, and medical infusion pump voltage monitoring requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZU22B3TRF-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' precision discrete portfolio, engineered specifically for compact, high-stability voltage reference and protection functions in space-constrained, thermally demanding applications.
FAQ
What is the Zener voltage tolerance for HZU22B3TRF-E?
The HZU22B3TRF-E has a B3 grade Zener voltage specification of 22.23 V to 23.17 V at 5 mA test current, corresponding to a ±4.3% tolerance band around the nominal 22.6 V center point. This tighter grading enables improved system-level accuracy without external trimming, and is confirmed in the R07DS0423EJ1000 datasheet Table on Page 3.
Does HZU22B3TRF-E support automated SMT assembly?
Yes, the HZU22B3TRF-E is supplied in TRF taping format (3,000 pcs/reel) compatible with standard 8 mm carrier tape feeders. Its URP package (1.55 × 0.80 mm) meets IPC-7351B land pattern requirements for SC-76A, enabling reliable placement at speeds up to 25,000 cph on modern SMT lines without tombstoning or misalignment.
What is the maximum reverse leakage current for HZU22B3TRF-E?
The HZU22B3TRF-E specifies a maximum reverse current (IR) of 2 μA at VR = 17.0 V, measured at 25°C ambient. This low leakage ensures minimal error contribution in high-impedance reference dividers and extends battery life in always-on monitoring circuits, as verified in the Electrical Characteristics table on Page 3 of the R07DS0423EJ1000 datasheet.
Can HZU22B3TRF-E be used in place of a 22 V Zener with looser tolerance?
Yes, the HZU22B3TRF-E can replace generic 22 V Zeners such as 1N4745A or BZX55C22 in new designs where tighter voltage control and smaller footprint are needed. However, its B3-grade tolerance and 55 Ω dynamic resistance provide measurable improvements in regulation accuracy and load step response-benefits that require validation in the target circuit's operating conditions.
What is the thermal derating behavior of HZU22B3TRF-E above 25°C?
The HZU22B3TRF-E exhibits linear thermal derating: its 200 mW maximum power dissipation decreases by approximately 1.6 mW/°C above 25°C ambient, reaching zero at 150°C junction temperature. This relationship is defined in Fig.3 (Page 5) of the R07DS0423EJ1000 datasheet and must be applied when calculating safe operating area in enclosed or high-temperature environments.
HZU22B3TRF-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:
- -
HZU22B3TRF-E FAQ
1.How can I place an order for HZU22B3TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU22B3TRF-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 HZU22B3TRF-E reliable?
The price and inventory of HZU22B3TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU22B3TRF-E is usually 5 days.
3.What payment methods are accepted for HZU22B3TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU22B3TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU22B3TRF-E?
HZU22B3TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU22B3TRF-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 HZU22B3TRF-E?
For technical support, including HZU22B3TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU22B3TRF-E requirements.
6.How does Aetrix verify that HZU22B3TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU22B3TRF-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 HZU22B3TRF-E meets industry standards.
7.What is the process for return or replacement of HZU22B3TRF-E?
All HZU22B3TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU22B3TRF-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 HZU22B3TRF-E part is unused and in its original packaging.
Return procedure for HZU22B3TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU22B3TRF-E Tags
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