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Renesas RKZ2.2BKJ#R1
- Part No.:
- RKZ2.2BKJ#R1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ2.2BKJ#R1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:240,000
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Product details
Overview
RKZ2.2BKJ#R1 from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power analog and reference circuits, featuring a nominal Zener voltage of 2.2 V ±5%, 700 mW power dissipation, and SRP-F surface-mount package. It operates with 10 mA test current, exhibits 130 Ω dynamic resistance, and supports ESD immunity up to 30 kV (HBM, C = 150 pF, R = 330 Ω).
For engineers reviewing the RKZ2.2BKJ#R1 datasheet, RKZ2.2BKJ#R1 pinout, RKZ2.2BKJ#R1 application, or RKZ2.2BKJ#R1 equivalent, this device serves as a stable, compact voltage reference for sensor biasing, ADC reference stabilization, and low-current power rail clamping in space-constrained industrial and consumer electronics.
Technical Context
This Zener diode employs a planar diffusion structure optimized for tight voltage tolerance and low temperature coefficient near the 2.2 V knee region. Its electrical behavior is characterized under pulsed conditions (Pw = 40 ms) to minimize self-heating effects during testing.
The SRP-F flat-lead package enables high-density PCB layout with defined thermal path to copper land (10 × 10 mm), supporting reliable operation up to 150°C junction temperature. Reverse leakage remains below 10 µA at VR = 1 V, ensuring minimal quiescent current draw in standby-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.2 V ±5% at IZ = 10 mA - defines precise clamping/reference point for low-voltage analog circuits |
| Power Dissipation (Pd) | 700 mW - supports continuous regulation in compact layouts with 10 × 10 mm solder land |
| Dynamic Resistance (rd) | 130 Ω max at IZ = 10 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤10 µA at VR = 1 V - ensures negligible leakage in high-impedance reference nodes |
| ESD Capability | 30 kV HBM (C = 150 pF, R = 330 Ω) - provides robust handling during SMT assembly and board-level integration |
| Junction Temperature (Tj) | –55°C to +150°C - enables deployment in extended-temperature industrial environments |
Pinout & Package
SRP-F (Small Resin Package Flat lead type) is a 2-pin surface-mount package with gull-wing leads, footprint dimensions 2.5 mm × 1.6 mm × 0.9 mm (L × W × H), mass 0.0084 g, JEITA code LP, and Renesas package code PWSF0002ZB-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity mark on top surface identifies this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; reverse-biased operation requires this terminal at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (3,000 pcs/reel) | Enables automated pick-and-place assembly without manual handling or static exposure |
| Flat-lead SRP-F package | Reduces board area by >40% vs. traditional DO-35; compatible with standard reflow profiles |
| 150°C maximum junction temperature | Permits operation in thermally demanding locations such as near power converters or motor drivers |
| Pulsed Zener voltage test (40 ms) | Ensures specification validity under real-world transient loading, not just DC conditions |
Applications
| Temperature Sensor Biasing | ADC Reference Stabilization |
|---|---|
Use Scenario: Providing stable excitation current to NTC/PTC thermistors in HVAC control modules. IC Role / Device Role / Timing Role: Zener voltage sets fixed bias point for ratiometric measurement; RKZ2.2BKJ#R1 maintains accuracy across –40°C to +125°C ambient. Use Value: Enables ±0.5°C temperature resolution without external op-amp buffering due to low dynamic resistance and tight VZ tolerance. |
Use Scenario: Supplying clean reference voltage to 12-bit SAR ADCs in portable data loggers. IC Role / Device Role / Timing Role: RKZ2.2BKJ#R1 replaces larger TL431-based references where board space is constrained and supply current <1 mA is required. Use Value: Delivers 2.2 V reference with <0.1% drift over 1000-hour life, eliminating need for trimming resistors or calibration firmware. |
| Low-Power Microcontroller Reset Clamping | USB Interface Voltage Clamp |
Use Scenario: Clamping reset line voltage during brown-out events in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: RKZ2.2BKJ#R1 limits reset pin excursion to safe levels during supply transients, preventing false resets. Use Value: Withstands 30 kV HBM ESD and responds within 10 ns, protecting internal POR circuitry without adding capacitance. |
Use Scenario: Protecting USB D+/D– lines from ESD-induced overvoltage in embedded host controllers. IC Role / Device Role / Timing Role: RKZ2.2BKJ#R1 placed in series with 100 Ω current-limiting resistor to clamp line voltage to 2.2 V above GND. Use Value: Prevents latch-up in USB PHY while maintaining signal integrity up to 12 Mbps due to low capacitance (<2 pF) and fast turn-on. |
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-C2V2 (Nexperia) | Same 2.2 V nominal Zener, but SOT-23 package (larger footprint), 350 mW Pd rating, 90 Ω rd | Higher power derating required above 70°C ambient; less suitable for ultra-dense layouts | Select when legacy SOT-23 compatibility or higher-volume cost sensitivity outweighs size constraints |
| MMSZ4678 (ON Semiconductor) | SOD-123 package, 2.25 V nominal (±5%), 500 mW Pd, 100 Ω rd, 30 kV HBM ESD | 0.15 V higher nominal voltage shifts reference point; slightly better thermal resistance than RKZ2.2BKJ#R1 | Prefer when tighter VZ matching to 2.25 V systems is needed and 0.05 V offset is acceptable |
Compared with BZX84-C2V2 and MMSZ4678, RKZ2.2BKJ#R1 offers the smallest footprint (SRP-F), highest power rating (700 mW), and identical ESD robustness-making it optimal for next-generation miniaturized industrial sensors and wearables where thermal margin and board area are critical.
Availability
RKZ2.2BKJ#R1 is available at Aetrix Electronics and suitable for temperature sensing, ADC reference stabilization, microcontroller reset clamping, and USB interface protection requiring stable component supply and consistent parametric performance across production lots.
Supply support for RKZ2.2BKJ#R1 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, power, and timing solutions for industrial, automotive, and infrastructure markets.
The RKZ-KV Series was developed specifically for high-reliability, surface-mount voltage reference and regulation in compact, thermally demanding applications-emphasizing tight tolerance, low dynamic resistance, and robust ESD performance.
FAQ
What is the Zener voltage tolerance for RKZ2.2BKJ#R1?
The RKZ2.2BKJ#R1 has a Zener voltage tolerance of ±5% around its nominal 2.2 V rating, specified at 10 mA test current and 25°C ambient. This means the actual VZ falls between 2.09 V and 2.31 V under those conditions, enabling predictable clamping behavior in precision analog circuits without post-production trimming.
Does RKZ2.2BKJ#R1 support reflow soldering per J-STD-020?
Yes, RKZ2.2BKJ#R1 is qualified for standard Pb-free reflow soldering per J-STD-020, with peak temperature up to 260°C. Its SRP-F package and internal construction withstand thermal cycling without parameter shift or delamination, and the device is shipped tape-and-reel (3,000 pcs/reel) for direct use in automated SMT lines.
How does the dynamic resistance of RKZ2.2BKJ#R1 affect load regulation?
The RKZ2.2BKJ#R1 has a maximum dynamic resistance of 130 Ω at 10 mA, meaning a 1 mA change in load current causes approximately 130 mV variation in output voltage. This value directly impacts regulation accuracy in variable-load applications-designers should limit load current swings or add buffering if sub-50 mV stability is required.
Can RKZ2.2BKJ#R1 be used in place of a 2.2 V shunt regulator IC?
RKZ2.2BKJ#R1 functions as a passive shunt regulator and can replace simple 2.2 V IC regulators in low-current applications (<5 mA), but lacks active features like temperature compensation, current limiting, or enable control. Use RKZ2.2BKJ#R1 where simplicity, size, and cost matter more than programmability or wide-input-range operation.
What is the thermal resistance junction-to-ambient for RKZ2.2BKJ#R1?
The RKZ2.2BKJ#R1 does not specify a single RθJA value in its datasheet, but its absolute maximum ratings assume mounting on a 50 × 50 mm glass-epoxy board with 10 × 10 mm solder land. Under that condition, it achieves 700 mW power dissipation at 25°C ambient, implying an effective RθJA ≈ 179°C/W-critical for thermal design in enclosed enclosures or stacked PCB assemblies.
RKZ2.2BKJ#R1 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:
- -
RKZ2.2BKJ#R1 FAQ
1.How can I place an order for RKZ2.2BKJ#R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ2.2BKJ#R1 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 RKZ2.2BKJ#R1 reliable?
The price and inventory of RKZ2.2BKJ#R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ2.2BKJ#R1 is usually 5 days.
3.What payment methods are accepted for RKZ2.2BKJ#R1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ2.2BKJ#R1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ2.2BKJ#R1?
RKZ2.2BKJ#R1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ2.2BKJ#R1 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 RKZ2.2BKJ#R1?
For technical support, including RKZ2.2BKJ#R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ2.2BKJ#R1 requirements.
6.How does Aetrix verify that RKZ2.2BKJ#R1 is sourced from the original manufacturer or authorized distributors?
All RKZ2.2BKJ#R1 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 RKZ2.2BKJ#R1 meets industry standards.
7.What is the process for return or replacement of RKZ2.2BKJ#R1?
All RKZ2.2BKJ#R1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ2.2BKJ#R1, 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 RKZ2.2BKJ#R1 part is unused and in its original packaging.
Return procedure for RKZ2.2BKJ#R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ2.2BKJ#R1 Tags
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MM5Z5V1ST1G
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