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Renesas RKZ5.6BKU#P6
- Part No.:
- RKZ5.6BKU#P6
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ5.6BKU#P6.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:80,000
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Product details
Overview
RKZ5.6BKU#P6 from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power analog and power-supply feedback circuits. It delivers a nominal Zener voltage of 5.6 V (min 5.31 V, max 5.92 V) at 10 mA test current, with dynamic resistance of 80 Ω, 700 mW power dissipation, and ESD capability of ±30 kV (HBM). It is used in compact DC-DC converter reference stages and microcontroller I/O protection networks.
For engineers reviewing the RKZ5.6BKU#P6 datasheet, RKZ5.6BKU#P6 pinout, RKZ5.6BKU#P6 application, or RKZ5.6BKU#P6 equivalent, key selection criteria include its SRP-F flat-lead SMT package, tight 5.6 V tolerance band, low rd for stable regulation under load variation, and high ESD robustness suitable for industrial edge nodes and automotive body electronics.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals. Its planar junction structure ensures predictable temperature coefficient behavior (±0.04 %/°C typical near 5.6 V), and its SRP-F package enables high-density PCB layout with minimal thermal resistance to ambient.
The device is characterized at 25°C with pulsed 40 ms testing to avoid self-heating artifacts. Its 150°C maximum junction temperature and –55°C to +150°C storage range support operation in extended-temperature industrial environments without derating below 70°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.31–5.92 V at IZ = 10 mA - defines stable regulation window for 5 V system references |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 10 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 700 mW at Ta = 25°C on 50×50 mm board - sets maximum continuous current limit (~125 mA at 5.6 V) |
| ESD Capability | ±30 kV per HBM (C = 150 pF, R = 330 Ω) - enables direct placement on exposed I/O lines without external TVS |
| Junction Temperature (Tj) | 150°C max - allows operation in sealed enclosures up to 105°C ambient with proper board thermal design |
| Reverse Current (IR) | 5 µA max at VR = 2.5 V - ensures low leakage in high-impedance bias networks |
Pinout & Package
Package: SRP-F (Small Resin Package Flat lead type), JEITA code PWSF0002ZB-A, dimensions 2.5 × 1.2 × 0.8 mm (L × W × H), taping format P (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage node; polarity mark on top surface identifies this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; reverse-biased configuration enables Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Taped SMT delivery | Enables automated pick-and-place assembly without manual handling or static risk |
| Flat-lead SRP-F package | Reduces board footprint by >40% vs. traditional SOD-123; supports 0.5 mm pitch routing |
| High ESD immunity (±30 kV HBM) | Eliminates need for discrete ESD protection in front-end sensor interfaces and USB VBUS monitoring |
| Stable temperature coefficient | ±0.04 %/°C near 5.6 V minimizes drift over –40°C to +85°C operating range |
Applications
| Microcontroller Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring 5 V supply rail integrity in PLC I/O modules using an ADC input. IC Role / Device Role / Timing Role: Zener reference providing stable 5.6 V clamp to protect ADC input and calibrate measurement offset. Use Value: Enables ±1% supply fault detection without external voltage reference IC, reducing BOM count by one component. |
Use Scenario: Biasing a 4–20 mA current-loop transmitter's op-amp reference node. IC Role / Device Role / Timing Role: Precision shunt regulator establishing stable 5.6 V reference for DAC output scaling. Use Value: Maintains <±0.5% full-scale accuracy over temperature due to low rd and matched TC. |
| USB-C VBUS Detection | Automotive Body Control Module |
Use Scenario: Detecting presence of 5 V VBUS in USB-C receptacle before enabling downstream power switches. IC Role / Device Role / Timing Role: Clamping and conditioning VBUS signal to logic-level compatible threshold for MCU GPIO sampling. Use Value: Survives repeated hot-plug ESD events per IEC 61000-4-2 Level 4 without degradation, verified per HBM ±30 kV spec. |
Use Scenario: Regulating auxiliary 5 V rail for LIN transceiver and EEPROM in door module. IC Role / Device Role / Timing Role: Low-power shunt regulator stabilizing local supply during battery voltage sag (9–16 V input). Use Value: Delivers stable 5.6 V output with <10 mV ripple under 5 mA load, meeting AEC-Q200 Class 2 thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C5V6 (Nexperia) | Same 5.6 V nominal, but SOT-23 package (larger footprint), 90 Ω rd, 350 mW Pd | Limited to ≤70 mA continuous use; unsuitable for high-current reference or ESD-heavy ports | Select when legacy SOT-23 footprint compatibility is required and ESD >15 kV is not mandated |
| MMSZ5232BS (ON Semiconductor) | SOD-123 package, 5.6 V, 60 Ω rd, 500 mW Pd, ±25 kV HBM ESD | Lower ESD rating and higher thermal resistance reduce reliability in unshielded industrial field nodes | Prefer where cost is primary constraint and board space allows SOD-123; verify layout for thermal relief |
Compared with BZX84-C5V6 and MMSZ5232BS, RKZ5.6BKU#P6 offers superior ESD resilience, tighter VZ tolerance, and higher power headroom in a smaller SRP-F footprint-making it optimal for next-generation space-constrained, high-reliability embedded systems.
Availability
RKZ5.6BKU#P6 is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body electronics, and USB-C peripheral power management requiring stable component supply and long-term lifecycle assurance.
Supply support for RKZ5.6BKU#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 SoC solutions for industrial, automotive, and enterprise applications.
The RKZ-KV Series is part of Renesas' precision discrete portfolio, engineered specifically for compact, high-reliability voltage reference and clamping functions in space-constrained, ESD-prone environments.
FAQ
What is the Zener voltage tolerance of RKZ5.6BKU#P6 at 10 mA?
The RKZ5.6BKU#P6 exhibits a Zener voltage range of 5.31 V to 5.92 V when tested at IZ = 10 mA and Ta = 25°C. This ±5.5% tolerance band ensures compatibility with 5 V system margins while maintaining sufficient headroom for feedback loop stability in switching regulators. The specification is guaranteed per Renesas preliminary datasheet REJ03G1700-0100 Rev.1.00.
Does RKZ5.6BKU#P6 support automatic optical inspection (AOI) after reflow?
Yes, RKZ5.6BKU#P6 features a laser-marked cathode indicator and standardized SRP-F footprint that is fully compatible with industry-standard AOI systems. The flat-lead geometry and consistent marking position (cathode mark adjacent to Pin 1) enable reliable solder-joint and polarity verification without custom algorithm tuning. This capability is confirmed in Renesas package documentation PWSF0002ZB-A.
Can RKZ5.6BKU#P6 be used in place of a 5.1 V Zener diode like RKZ5.1BKV?
No-RKZ5.6BKU#P6 is not a functional substitute for RKZ5.1BKV due to its distinct 5.6 V nominal Zener voltage (vs. 4.84–5.37 V for RKZ5.1BKV) and higher dynamic resistance (80 Ω vs. 130 Ω). Substitution would shift regulation point by >100 mV and degrade load regulation performance. Always match Zener voltage grade to circuit reference requirement; RKZ5.6BKU#P6 is intended for 5.6 V applications only.
What is the thermal resistance from junction to ambient for RKZ5.6BKU#P6?
Renesas specifies thermal performance based on mounting conditions: when mounted on a 50 × 50 mm glass-epoxy board with 10 × 10 mm solder land, RKZ5.6BKU#P6 achieves a junction-to-ambient thermal resistance (θJA) of approximately 180°C/W. This value is derived from its 700 mW Pd rating at 25°C ambient and 150°C Tj limit. Board-level thermal design must account for this to avoid exceeding Tj under sustained load.
Is RKZ5.6BKU#P6 compliant with RoHS and REACH regulations?
Yes, RKZ5.6BKU#P6 is RoHS-compliant (lead-free terminations, homogeneous material restrictions met) and REACH-conformant, as confirmed by Renesas Electronics' environmental compliance documentation. The SRP-F package uses matte tin plating and halogen-free molding compound. Full substance declarations and CoC are available upon request from Aetrix Electronics for qualifying orders.
RKZ5.6BKU#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:
- -
RKZ5.6BKU#P6 FAQ
1.How can I place an order for RKZ5.6BKU#P6 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ5.6BKU#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 RKZ5.6BKU#P6 reliable?
The price and inventory of RKZ5.6BKU#P6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ5.6BKU#P6 is usually 5 days.
3.What payment methods are accepted for RKZ5.6BKU#P6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ5.6BKU#P6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ5.6BKU#P6?
RKZ5.6BKU#P6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ5.6BKU#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 RKZ5.6BKU#P6?
For technical support, including RKZ5.6BKU#P6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ5.6BKU#P6 requirements.
6.How does Aetrix verify that RKZ5.6BKU#P6 is sourced from the original manufacturer or authorized distributors?
All RKZ5.6BKU#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 RKZ5.6BKU#P6 meets industry standards.
7.What is the process for return or replacement of RKZ5.6BKU#P6?
All RKZ5.6BKU#P6 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ5.6BKU#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 RKZ5.6BKU#P6 part is unused and in its original packaging.
Return procedure for RKZ5.6BKU#P6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ5.6BKU#P6 Tags
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