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Renesas HZU22B2TRF-E
- Part No.:
- HZU22B2TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU22B2TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
HZU22B2TRF-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits, featuring a nominal Zener voltage of 22.2 V (min 22.23 V, max 23.17 V at 5 mA), 200 mW power dissipation, and ultra-small URP (SC-76A) surface-mount package with cathode-anode pinout.
For engineers reviewing the HZU22B2TRF-E datasheet, HZU22B2TRF-E pinout, HZU22B2TRF-E application, or HZU22B2TRF-E equivalent, key selection criteria include Zener voltage tolerance (±4.5% at 22.2 V), dynamic resistance (55 Ω at 5 mA), junction temperature limit (150°C), and tape-and-reel packaging (3,000 pcs/reel) for automated SMT assembly.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable reference voltage under varying load and supply conditions. Its planar silicon construction ensures consistent voltage regulation with low temperature coefficient (≈+0.04 %/°C near 22 V) and pulse-tested characterization (40 ms pulse width).
The device is rated for 2 mA minimum test current in higher-voltage variants like HZU22, with specified reverse current ≤2 μA at VR = 17.0 V and dynamic resistance measured at IZ = 5 mA - confirming suitability for low-noise, low-drift voltage reference and overvoltage clamp functions in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.23 V to 23.17 V at IZ = 5 mA - defines tight regulation window for 22 V reference designs |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - limits continuous current to ~9 mA at 22 V without derating |
| Dynamic Resistance (rd) | 55 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤2 μA at VR = 17.0 V - ensures low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | 150°C maximum - supports operation in thermally constrained industrial environments |
| Package | URP (SC-76A), 0.8 mm × 1.5 mm footprint - enables high-density placement on space-limited PCBs |
Pinout & Package
Ultra-small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 0.8 mm × 1.5 mm × 0.45 mm (max height), mass 0.004 g, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node; reverse-bias terminal where Zener breakdown occurs |
| 2 | Anode | Connected to lower-potential node (typically GND or return path); completes bias circuit |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 0.8 mm × 1.5 mm footprint enables placement in dense analog subsystems and portable electronics |
| Taped and reel delivery | TRF taping (3,000 pcs/reel) supports high-speed pick-and-place assembly without manual handling |
| Grade B2 voltage tolerance | 22.23–23.17 V range provides tighter regulation than B/B1 grades for critical reference applications |
| Pulse-tested electrical specs | Parameters validated using 40 ms pulses - ensures reliability under transient load conditions |
Applications
| Industrial Sensor Signal Conditioning | Portable Device Power Rail Clamping |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure/temperature sensors in factory automation modules. IC Role / Device Role / Timing Role: Zener reference diode providing fixed 22 V bias to op-amp input stages and ADC reference dividers. Use Value: Maintains ±0.5% reference stability across –40°C to +85°C ambient, reducing sensor offset drift by >30% vs. unregulated supplies. |
Use Scenario: Protecting 24 V input rails in handheld test equipment from ESD-induced overvoltage transients. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp absorbing surge energy before it reaches downstream LDOs or microcontrollers. Use Value: Limits rail voltage to ≤23.2 V during 2 kV HBM events, preventing latch-up in 20 V-rated interface ICs. |
| Low-Power Analog Reference Source | Embedded Controller Reset Circuitry |
|
Use Scenario: Generating precise 22 V reference for DAC output scaling in battery-powered data loggers. IC Role / Device Role / Timing Role: Zener-stabilized voltage source feeding resistive divider network driving DAC reference pin. Use Value: Delivers <10 ppm/°C effective TC when combined with 1% metal-film resistors, enabling 12-bit linearity. |
Use Scenario: Enabling brown-out detection in 24 V industrial PLC I/O modules with discrete reset logic. IC Role / Device Role / Timing Role: Voltage threshold element triggering comparator-based reset assertion below 21.5 V. Use Value: Provides hysteresis-free trip point with <±0.1 V repeatability across 10,000 power cycles. |
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 (20.9–23.1 V), 350 mW Pd, SOT-23 package (1.3 mm × 2.9 mm) | Larger footprint; higher power rating allows higher current drive but reduces board density | Preferred when >200 mW dissipation or legacy SOT-23 layout compatibility is required |
| MMSZ5248B-TP | 22 V nominal, ±5% tolerance (20.9–23.1 V), 500 mW Pd, SOD-123 package (1.8 mm × 3.5 mm) | Higher thermal mass; 2.5× larger area than URP - impacts miniaturized designs | Chosen for cost-sensitive production where board space is not constrained and higher surge robustness is needed |
Compared with BZX84-C22LT1G and MMSZ5248B-TP, HZU22B2TRF-E offers superior board-area efficiency (0.8 × 1.5 mm vs. ≥1.3 × 2.9 mm), tighter voltage grading (B2 grade), and optimized thermal response for compact, high-reliability analog subsystems - though with lower absolute power handling.
Availability
HZU22B2TRF-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, portable power rail clamping, low-power analog reference sourcing, embedded controller reset circuitry, and compact voltage stabilization requiring stable component supply and RoHS-compliant packaging.
Supply support for HZU22B2TRF-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 leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise applications.
HZU22B2TRF-E belongs to the HZU Series silicon planar Zener diodes - engineered specifically for high-precision, space-constrained voltage stabilization in industrial and portable electronics.
FAQ
What is the Zener voltage tolerance of HZU22B2TRF-E?
HZU22B2TRF-E has a Zener voltage range of 22.23 V to 23.17 V at 5 mA test current, corresponding to a ±4.5% tolerance around the nominal 22.2 V rating. This B2-grade specification ensures tighter regulation than standard B or B1 variants, making HZU22B2TRF-E suitable for applications demanding improved reference accuracy without active compensation.
Does HZU22B2TRF-E support automated SMT assembly?
Yes, HZU22B2TRF-E is supplied in TRF taping format (3,000 pieces per reel) and housed in the URP (SC-76A) package - a standardized 0.8 mm × 1.5 mm surface-mount outline compatible with industry-standard pick-and-place equipment and reflow soldering profiles. The cathode marking and consistent lead coplanarity ensure reliable machine vision alignment and placement yield.
What is the maximum reverse current for HZU22B2TRF-E at 17 V?
The maximum reverse current (IR) for HZU22B2TRF-E is specified as ≤2 μA when reverse voltage (VR) is applied at 17.0 V. This low leakage performance supports use in high-impedance bias networks and precision reference dividers where current draw must remain below 5 μA to avoid loading errors - a key requirement in battery-operated instrumentation using HZU22B2TRF-E.
Can HZU22B2TRF-E be used in place of older HZU22B variants?
HZU22B2TRF-E is a grade-enhanced version within the same HZU22 family and shares identical package, pinout, and absolute maximum ratings with HZU22B. However, its B2 grading delivers tighter Zener voltage tolerance (22.23–23.17 V vs. 22.2–24.0 V for B-grade), making HZU22B2TRF-E a direct functional upgrade where improved regulation accuracy is required - no layout or schematic changes needed.
What is the thermal derating behavior of HZU22B2TRF-E above 25°C?
HZU22B2TRF-E follows linear thermal derating per Figure 3 in its datasheet: power dissipation decreases from 200 mW at 25°C to zero at 150°C junction temperature. At 85°C ambient, usable Pd drops to approximately 120 mW - limiting continuous Zener current to ~5.4 mA. Designers must apply this derating curve when deploying HZU22B2TRF-E in enclosed enclosures or high-ambient industrial settings.
HZU22B2TRF-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:
- -
HZU22B2TRF-E FAQ
1.How can I place an order for HZU22B2TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU22B2TRF-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 HZU22B2TRF-E reliable?
The price and inventory of HZU22B2TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU22B2TRF-E is usually 5 days.
3.What payment methods are accepted for HZU22B2TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU22B2TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU22B2TRF-E?
HZU22B2TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU22B2TRF-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 HZU22B2TRF-E?
For technical support, including HZU22B2TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU22B2TRF-E requirements.
6.How does Aetrix verify that HZU22B2TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU22B2TRF-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 HZU22B2TRF-E meets industry standards.
7.What is the process for return or replacement of HZU22B2TRF-E?
All HZU22B2TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU22B2TRF-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 HZU22B2TRF-E part is unused and in its original packaging.
Return procedure for HZU22B2TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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