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Renesas RKZ22BJKU#P6
- Part No.:
- RKZ22BJKU#P6
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ22BJKU#P6.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:84,000
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Product details
Overview
RKZ22BJKU#P6 from Renesas Electronics is a silicon planar Zener diode designed for surge absorption and voltage stabilization in low-power signal and supply rail protection circuits. It delivers a nominal Zener voltage of 22 V (21.54–22.47 V), 2 mW reverse leakage at VR = 17 V, 55 Ω dynamic resistance at IZ = 5 mA, and ESD capability of ±20 kV (HBM). It is used in compact consumer electronics power rails and I/O line clamping.
For engineers reviewing the RKZ22BJKU#P6 datasheet, RKZ22BJKU#P6 pinout, RKZ22BJKU#P6 application, or RKZ22BJKU#P6 equivalent, this page provides verified electrical specs, URP package dimensions, cathode/anode terminal roles, real-world use cases in USB interface protection and microcontroller reset circuitry, and two validated alternative Zener diodes with comparative guidance.
Technical Context
This device operates as a two-terminal voltage reference and transient suppressor, leveraging silicon planar junction technology for stable breakdown behavior under DC and short-duration surge conditions. Its design targets low-current regulation (IZ = 5 mA) and high-impedance clamping in space-constrained SMT layouts.
The RKZ22BJKU#P6 exhibits a negative temperature coefficient near 22 V (≈ –0.04 %/°C per Fig.2), enabling predictable drift in thermal environments up to 150°C junction temperature. Its ultra-small resin package (URP, JEITA SC-76A) supports high-density PCB assembly without compromising thermal derating - Pd drops linearly from 200 mW at 25°C to ~100 mW at 80°C per Fig.3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 21.54–22.47 V at IZ = 5 mA - defines precise clamping threshold for 22 V rail protection |
| Dynamic Resistance (rd) | 55 Ω max at IZ = 5 mA - ensures minimal voltage shift under load variation |
| Reverse Current (IR) | 2 μA max at VR = 17 V - guarantees low standby leakage in battery-backed circuits |
| ESD Capability | ±20 kV HBM (C = 150 pF, R = 330 Ω) - meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C on PCB - sets maximum continuous power handling before thermal shutdown |
| Junction Temperature (Tj) | –55 to +150°C - enables operation in automotive cabin and industrial control ambient conditions |
| Package | URP (SC-76A, PTSP0002ZA-A) - 1.7 × 2.5 × 0.8 mm footprint ideal for 0603-replacement layouts |
Pinout & Package
Ultra-small Resin Package (URP) - JEITA SC-76A outline, 0.8 mm profile, 1.7 mm × 2.5 mm body, 0.004 g mass. Cathode marked with bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated or protected node; carries reverse current during Zener conduction |
| 2 | Anode | Connected to ground or lower-potential reference; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Pb-free & Halogen-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC JS709C for green manufacturing |
| High ESD robustness | ±20 kV Human Body Model rating - eliminates need for external ESD diodes in cost-sensitive USB/UART interfaces |
| Taped packaging | 3,000 pcs/reel in P tape format - supports automated pick-and-place at >10,000 CPH throughput |
| Thermal stability | Derates linearly to 100 mW at 80°C ambient - enables reliable operation in sealed enclosures without forced cooling |
| Low-profile mounting | 0.8 mm max height - fits under shields and in stacked-board assemblies where Z-height is constrained |
Applications
| USB 2.0 Data Line Protection | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Clamps ESD transients on D+ and D− lines during hot-plug events in portable peripherals. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between data line and ground, conducting only during overvoltage. Use Value: Prevents latch-up or damage to USB PHY transceivers by limiting peak line voltage to ≤22.5 V during ±8 kV contact discharge. | Use Scenario: Provides clean, temperature-stable reset threshold for 3.3 V or 5 V microcontrollers. IC Role / Device Role / Timing Role: Zener-based reference in RC reset generator, setting precise VTH for POR detection. Use Value: Ensures deterministic reset assertion across –40°C to +85°C due to known γZ ≈ –0.04 %/°C and low rd. |
| Industrial Sensor Signal Conditioning | Low-Power IoT Node Power Rail Clamp |
Use Scenario: Protects analog front-end inputs of 4–20 mA loop receivers from field-induced surges. IC Role / Device Role / Timing Role: Low-leakage shunt regulator across input op-amp supply pins to absorb induced spikes. Use Value: Limits supply rail excursion to 22.5 V while drawing <2 μA at 17 V - preserves sensor accuracy and quiescent current budget. | Use Scenario: Guards 3.3 V LDO output against coupling from RF modules or switching regulators in battery-powered nodes. IC Role / Device Role / Timing Role: Standby-mode surge absorber tied between LDO output and ground. Use Value: Absorbs 100 W non-repetitive surges (t = 10 ms, Fig.4) without degradation, extending battery life via sub-μA leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C22 (ON Semiconductor) | DO-35 glass package (4.5 mm × 1.8 mm); 500 mW Pd; 20–24 V VZ range; 60 Ω rd | Requires through-hole or larger SMT pad layout; higher thermal mass but less suitable for ultra-dense boards | Select when higher surge power handling is required and board space permits larger footprint |
| MMSZ5247B (Diodes Inc.) | SOD-123 package (3.7 mm × 1.6 mm); 500 mW Pd; 20.8–23.3 V VZ; 30 Ω rd; ±30 kV HBM | Higher ESD rating and lower rd, but 0.1 mm taller (1.1 mm) and incompatible pinout | Choose for enhanced clamping precision and ESD margin where URP height constraint is relaxed |
Compared with BZX55C22 and MMSZ5247B, the RKZ22BJKU#P6 offers the smallest PCB footprint (1.7 × 2.5 mm) and lowest profile (0.8 mm), making it optimal for wearables and miniaturized IoT sensors - though with lower absolute surge power than the alternatives.
Availability
RKZ22BJKU#P6 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset generation, industrial sensor signal conditioning, and low-power IoT node power rail clamping requiring stable component supply and halogen-free compliance.
Supply support for RKZ22BJKU#P6 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 leader delivering microcontrollers, analog, power, and timing solutions for automotive, industrial, and enterprise systems.
The RKZ-KG Series is part of Renesas' discrete protection portfolio, engineered specifically for compact, high-reliability surge suppression and voltage stabilization in consumer and industrial edge devices.
FAQ
What is the Zener voltage tolerance of RKZ22BJKU#P6?
The RKZ22BJKU#P6 has a guaranteed Zener voltage range of 21.54 V to 22.47 V at IZ = 5 mA, representing ±2.1% tolerance about the nominal 22 V rating. This tight spread ensures consistent clamping performance across production lots without requiring binning or post-assembly calibration.
Does RKZ22BJKU#P6 support automated optical inspection (AOI) after reflow?
Yes, RKZ22BJKU#P6 features a laser-marked cathode indicator ("22•") on its URP package surface, fully compatible with standard AOI systems. The high-contrast marking and consistent 0.8 mm profile enable reliable solder-joint and placement verification in high-volume SMT lines.
Can RKZ22BJKU#P6 be used in place of a 22 V TVS diode?
No - RKZ22BJKU#P6 is a Zener diode optimized for low-current voltage regulation and ESD clamping, not high-energy transient suppression. Its 200 mW power rating and 100 W non-repetitive surge capability (Fig.4) suit ESD and minor line disturbances, but not lightning-induced surges. For TVS-grade protection, use dedicated unidirectional/bidirectional TVS arrays like PESD5V0S1BA.
What is the thermal resistance junction-to-ambient (RθJA) for RKZ22BJKU#P6?
Renesas does not publish an explicit RθJA value for RKZ22BJKU#P6. However, its power derating curve (Fig.3) shows 200 mW at 25°C dropping to ~100 mW at 80°C ambient, implying an effective RθJA of approximately 500°C/W on a standard FR-4 PCB with minimal copper area - consistent with other SC-76A packaged Zeners.
Is RKZ22BJKU#P6 qualified for automotive applications?
No - RKZ22BJKU#P6 is rated for "Standard" quality grade per Renesas classification and is intended for consumer, office, and industrial equipment. It is not AEC-Q200 qualified, lacks automotive-specific screening, and is not recommended for under-hood or safety-critical vehicle subsystems.
RKZ22BJKU#P6 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:
- -
RKZ22BJKU#P6 FAQ
1.How can I place an order for RKZ22BJKU#P6 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ22BJKU#P6 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 RKZ22BJKU#P6 reliable?
The price and inventory of RKZ22BJKU#P6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ22BJKU#P6 is usually 5 days.
3.What payment methods are accepted for RKZ22BJKU#P6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ22BJKU#P6 transactions.
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4.How is shipping managed for RKZ22BJKU#P6?
RKZ22BJKU#P6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ22BJKU#P6 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 RKZ22BJKU#P6?
For technical support, including RKZ22BJKU#P6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ22BJKU#P6 requirements.
6.How does Aetrix verify that RKZ22BJKU#P6 is sourced from the original manufacturer or authorized distributors?
All RKZ22BJKU#P6 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 RKZ22BJKU#P6 meets industry standards.
7.What is the process for return or replacement of RKZ22BJKU#P6?
All RKZ22BJKU#P6 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ22BJKU#P6, 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 RKZ22BJKU#P6 part is unused and in its original packaging.
Return procedure for RKZ22BJKU#P6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ22BJKU#P6 Tags
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MM5Z5V1ST1G
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