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Renesas RKZ8.2BKU#P6
- Part No.:
- RKZ8.2BKU#P6
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ8.2BKU#P6.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:60,000
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Product details
Overview
RKZ8.2BKU#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 8.2 V with ±5% tolerance (7.76–8.64 V), 700 mW power dissipation, 30 Ω dynamic resistance at 2 mA test current, and ESD capability of ±30 kV (HBM). It is used in overvoltage protection and reference voltage generation for DC-DC converters and sensor signal conditioning.
For engineers reviewing the RKZ8.2BKU#P6 datasheet, RKZ8.2BKU#P6 pinout, RKZ8.2BKU#P6 application, or RKZ8.2BKU#P6 equivalent, this device serves as a compact, surface-mount voltage reference with verified thermal stability up to 150°C junction temperature, SRP-F package compatibility, and production-ready taping (3,000 pcs/reel).
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its 8.2 V nominal zener voltage falls within the optimal range for low-drift reference applications, with a temperature coefficient near zero crossing per the series' γZ vs. VZ curve (Fig.2).
The SRP-F flat-lead package enables high-density PCB layout while supporting 700 mW power dissipation on standard 50×50 mm glass-epoxy board with 10×10 mm solder land. Junction temperature is rated to 150°C, and storage range spans –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.76–8.64 V at IZ = 2 mA - defines regulated output voltage window for feedback loop design |
| Dynamic Resistance (rd) | 30 Ω max at IZ = 2 mA - determines load regulation sensitivity and ripple rejection capability |
| Power Dissipation (Pd) | 700 mW at Ta = 25°C - sets maximum continuous power handling on standard FR-4 PCB |
| Junction Temperature (Tj) | 150°C max - enables operation in industrial ambient environments without derating below 85°C |
| ESD Capability | ±30 kV HBM (C = 150 pF, R = 330 Ω) - provides robustness against handling and board-level electrostatic discharge |
| Package | SRP-F (JEITA code PWSF0002ZB-A) - 2-pin surface-mount flat-lead package, footprint 2.5 × 1.2 mm |
Pinout & Package
SRP-F is a 2-terminal surface-mount package with cathode-marked top-side laser marking. The device has no internal circuitry beyond the Zener junction; terminal roles are strictly anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-bias voltage applied here relative to anode |
| 2 | Anode | Connected to ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (3,000 pcs/reel) | Enables automated SMT placement without manual handling or orientation errors |
| SRP-F flat-lead package | Reduces PCB area by >40% vs. traditional SOD-123; supports 0.5 mm pitch assembly |
| Low dynamic resistance (30 Ω) | Minimizes output voltage shift under ±1 mA load variation in reference circuits |
| High ESD immunity (±30 kV HBM) | Eliminates need for external ESD protection in consumer-grade power supply designs |
Applications
| DC-DC Converter Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Used in the feedback divider network of a 12 V buck converter to regulate output voltage precisely. IC Role / Device Role / Timing Role: Zener diode provides stable 8.2 V reference point for error amplifier comparison. Use Value: Enables ±1% output regulation accuracy despite input voltage and load transients. |
Use Scenario: Placed across a 9 V rail to prevent downstream IC damage during surge events. IC Role / Device Role / Timing Role: Acts as shunt clamp, conducting excess current when rail exceeds 8.64 V. Use Value: Limits transient overvoltage to safe levels without requiring active control circuitry. |
| Sensor Signal Conditioning | Microcontroller Reference Voltage |
Use Scenario: Supplies bias voltage to a thermistor-based temperature sensing circuit operating from a 10 V supply. IC Role / Device Role / Timing Role: Provides stable 8.2 V excitation voltage independent of supply ripple. Use Value: Reduces measurement drift caused by supply variation, improving sensor linearity by 0.2% FS. |
Use Scenario: Feeds ADC reference input of an 8-bit MCU in battery-powered IoT node. IC Role / Device Role / Timing Role: Serves as external precision reference replacing internal bandgap (2.5 V). Use Value: Increases ADC effective resolution from 8-bit to ~9.5-bit equivalent via higher reference voltage headroom. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C8V2LT1G | Higher dynamic resistance (40 Ω), SOT-23 package (larger footprint), 350 mW Pd | Less suitable for high-precision feedback where low rd is critical; better for general-purpose clamping | Select if SOT-23 is already standardized in BOM and 8.2 V tolerance ±5% is acceptable |
| MMSZ4687T1G | Same 8.2 V nominal, but tighter tolerance (±2%), higher rd (50 Ω), SOD-123 package | Preferred where tighter initial tolerance matters more than dynamic impedance or thermal performance | Choose when absolute calibration accuracy outweighs load regulation and thermal drift requirements |
Compared with RKZ8.2BKU#P6, BZX84-C8V2LT1G offers broader availability but sacrifices power handling and dynamic impedance; MMSZ4687T1G improves initial tolerance at the cost of higher rd and reduced thermal robustness-making RKZ8.2BKU#P6 optimal for industrial feedback loops demanding stability across temperature and load.
Availability
RKZ8.2BKU#P6 is available at Aetrix Electronics and suitable for DC-DC converter feedback, overvoltage protection, and sensor excitation applications requiring stable component supply, consistent parametric performance, and RoHS-compliant surface-mount packaging.
Supply support for RKZ8.2BKU#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 specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The RKZ-KV Series was developed specifically for compact, high-reliability voltage reference and regulation in space-constrained power management systems-emphasizing thermal stability, ESD resilience, and SMT manufacturability.
FAQ
What is the zener voltage tolerance for RKZ8.2BKU#P6?
The RKZ8.2BKU#P6 has a zener voltage range of 7.76 V to 8.64 V at 2 mA test current, corresponding to ±5% tolerance around the nominal 8.2 V rating. This tolerance is guaranteed per the Electrical Characteristics table in REJ03G1700-0100 Rev.1.00 and applies under standard 25°C ambient conditions.
Does RKZ8.2BKU#P6 support high-temperature operation?
Yes, RKZ8.2BKU#P6 is rated for junction temperatures up to 150°C and storage temperatures from –55°C to +150°C. Its SRP-F package and silicon planar construction ensure stable zener voltage behavior across this full industrial temperature range, with minimal drift due to its near-zero temperature coefficient near 8.2 V.
What is the package type and dimensions of RKZ8.2BKU#P6?
RKZ8.2BKU#P6 uses the SRP-F package (JEITA code PWSF0002ZB-A), a 2-pin flat-lead surface-mount device measuring 2.5 mm × 1.2 mm × 0.6 mm (L × W × H). Pin 1 is cathode-marked; the package is optimized for high-density PCB layouts and automated assembly.
How does the dynamic resistance of RKZ8.2BKU#P6 affect circuit performance?
The RKZ8.2BKU#P6 exhibits a maximum dynamic resistance of 30 Ω at 2 mA, directly impacting load regulation: a ±1 mA change in zener current causes only ±30 mV output shift. This low rd makes RKZ8.2BKU#P6 especially suitable for precision reference and feedback applications where voltage stability under varying current is critical.
Is RKZ8.2BKU#P6 compatible with lead-free reflow processes?
Yes, RKZ8.2BKU#P6 is RoHS-compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C. Its SRP-F package and internal construction meet J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly without pre-baking under typical factory conditions.
RKZ8.2BKU#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:
- -
RKZ8.2BKU#P6 FAQ
1.How can I place an order for RKZ8.2BKU#P6 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ8.2BKU#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 RKZ8.2BKU#P6 reliable?
The price and inventory of RKZ8.2BKU#P6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ8.2BKU#P6 is usually 5 days.
3.What payment methods are accepted for RKZ8.2BKU#P6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ8.2BKU#P6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ8.2BKU#P6?
RKZ8.2BKU#P6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ8.2BKU#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 RKZ8.2BKU#P6?
For technical support, including RKZ8.2BKU#P6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ8.2BKU#P6 requirements.
6.How does Aetrix verify that RKZ8.2BKU#P6 is sourced from the original manufacturer or authorized distributors?
All RKZ8.2BKU#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 RKZ8.2BKU#P6 meets industry standards.
7.What is the process for return or replacement of RKZ8.2BKU#P6?
All RKZ8.2BKU#P6 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ8.2BKU#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 RKZ8.2BKU#P6 part is unused and in its original packaging.
Return procedure for RKZ8.2BKU#P6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ8.2BKU#P6 Tags
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MM5Z5V1ST1G
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