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Renesas RKZ22BKV#P1
- Part No.:
- RKZ22BKV#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ22BKV#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:72,000
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Product details
Overview
RKZ22BKV#P1 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 22 V (20.88–23.17 V), 5 mA test current, 55 Ω dynamic resistance, 700 mW power dissipation, and SRP-F surface-mount package - used in voltage clamp and reference applications for industrial sensor signal conditioning.
For engineers reviewing the RKZ22BKV#P1 datasheet, RKZ22BKV#P1 pinout, RKZ22BKV#P1 application, or RKZ22BKV#P1 equivalent, this part serves as a stable, tape-and-reel packaged Zener solution with verified ESD robustness (±30 kV per IEC 61000-4-2), temperature-stable regulation, and compact footprint for space-constrained PCBs.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its Zener voltage exhibits a positive temperature coefficient above ~5.6 V, confirmed at +0.055 %/°C for RKZ22BKV#P1, enabling predictable drift compensation in bias networks.
It is rated for 150 °C maximum junction temperature and derates linearly to zero power at 150 °C ambient when mounted on a standard 50 × 50 mm glass-epoxy board with 10 × 10 mm solder land - supporting reliable operation in extended-temperature industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.88–23.17 V at IZ = 5 mA - defines tight regulation window for ±5% tolerance reference design |
| Dynamic Resistance (rd) | 55 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 700 mW at Ta = 25 °C - sets maximum continuous DC power handling on standard PCB |
| Reverse Current (IR) | 2 µA max at VR = 17 V - ensures low leakage in high-impedance bias networks |
| ESD Capability | ±30 kV (HBM, C = 150 pF, R = 330 Ω) - provides robustness against handling and system-level electrostatic discharge |
| Junction Temperature (Tj) | 150 °C max - enables operation in hot industrial enclosures without thermal shutdown |
| Package | SRP-F (Flat lead, 2.5 × 1.2 × 0.9 mm) - supports automated SMT placement and high-density routing |
Pinout & Package
SRP-F package: 2-pin surface-mount flat-lead plastic case with cathode marking. Dimensions: 2.5 mm (L) × 1.2 mm (W) × 0.9 mm (H); terminal pitch 1.6 mm; weight 0.0084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity must be observed for correct clamping direction |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-biased conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (3,000 pcs/reel) | Enables direct integration into high-speed SMT pick-and-place lines without manual handling |
| Small Resin Package Flat lead (SRP-F) | Reduces board area by >40% vs. DO-35; eliminates lead-forming and supports 0.5 mm trace clearance |
| Low dynamic resistance (55 Ω) | Minimizes output voltage shift under varying load currents - critical for stable ADC reference rails |
| High ESD immunity (±30 kV) | Eliminates need for external TVS protection in low-energy interface circuits and sensor front-ends |
| Stable Zener voltage over temperature | Temperature coefficient of +0.055 %/°C allows predictable drift modeling in calibration algorithms |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Voltage Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure transducers operating in factory-floor environments with ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 22 V bias to bridge sensor circuitry, replacing bulkier three-terminal regulators. Use Value: Maintains <±1% output stability across –40 to +85 °C due to predictable TC and low rd, reducing calibration drift in field-deployed instrumentation. |
Use Scenario: Generating a precise analog reference for 12-bit SAR ADCs in programmable logic controllers where supply rails vary between 20–26 VDC. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing stable 22 V reference node upstream of voltage dividers feeding ADC inputs. Use Value: Delivers <2 mV ripple under 100 µA load variation, enabling sub-LSB measurement accuracy without LDO post-regulation. |
| Overvoltage Clamp for RS-485 Transceivers | Power Supply Rail Protection in Embedded Gate Drivers |
|
Use Scenario: Protecting differential bus lines of isolated RS-485 nodes against transient surges in building automation systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between A/B lines and ground, leveraging symmetric ESD rating. Use Value: Clamps transients to <25 V peak within 1 ns response time while surviving repeated ±30 kV ESD events - validated per IEC 61000-4-2. |
Use Scenario: Limiting gate-source voltage of 600 V IGBT drivers during bootstrap charging in motor control inverters. IC Role / Device Role / Timing Role: Shunt limiter across driver IC's VGS input, activated only during overvoltage fault conditions. Use Value: Absorbs 700 mW surge energy without degradation, preventing gate oxide rupture while maintaining <100 ns response to fast-rising spikes. |
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-C22LT1G | 22 V ±5%, 350 mW Pd, SOT-23 package, rd = 50 Ω | Lower power rating limits use in sustained 5 mA bias; smaller footprint but higher thermal resistance | Select when board space is constrained and average power <350 mW; verify thermal margin on FR-4 |
| MMSZ5248B-TP | 22 V ±5%, 500 mW Pd, SOD-123 package, rd = 60 Ω, ESD = ±30 kV | Same ESD rating but 200 mW lower Pd; slightly higher rd increases load regulation error | Choose for cost-sensitive designs where 500 mW suffices and legacy SOD-123 footprint is required |
Compared with BZX84-C22LT1G and MMSZ5248B-TP, RKZ22BKV#P1 offers 40% higher power headroom and identical ESD robustness in a thermally optimized SRP-F package - making it preferred for continuous 5 mA biasing in industrial control modules.
Availability
RKZ22BKV#P1 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller voltage reference, overvoltage clamp for RS-485 transceivers, and power supply rail protection in embedded gate drivers requiring stable component supply and long-term obsolescence management.
Supply support for RKZ22BKV#P1 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 industrial, automotive, and infrastructure markets.
RKZ22BKV#P1 belongs to the RKZ-KV Series of silicon planar Zener diodes engineered specifically for compact, high-reliability voltage regulation in surface-mount industrial electronics - emphasizing thermal stability, ESD resilience, and tape-and-reel manufacturability.
FAQ
What is the Zener voltage tolerance of RKZ22BKV#P1?
The RKZ22BKV#P1 has a Zener voltage range of 20.88 V to 23.17 V at IZ = 5 mA, corresponding to a ±5% tolerance band. This specification is guaranteed under standard test conditions (Ta = 25 °C, pulse width = 40 ms) and reflects the device's tight process control for reference-grade stability.
Does RKZ22BKV#P1 support bidirectional ESD protection?
Yes, RKZ22BKV#P1 is rated for ±30 kV ESD per IEC 61000-4-2 (C = 150 pF, R = 330 Ω) in both forward and reverse directions. Its symmetrical junction structure enables effective clamping of transients on either polarity - commonly applied across differential bus lines like RS-485 A/B.
What is the thermal derating behavior of RKZ22BKV#P1?
RKZ22BKV#P1 derates linearly from 700 mW at 25 °C ambient to 0 mW at 150 °C ambient when mounted on a 50 × 50 mm glass-epoxy PCB with 10 × 10 mm copper land. At 85 °C ambient, its usable power drops to approximately 490 mW - critical for thermal design in enclosed industrial enclosures.
Can RKZ22BKV#P1 replace a 1N4747A in existing designs?
RKZ22BKV#P1 is not a direct drop-in replacement for 1N4747A due to differing packages (SRP-F vs. DO-41) and thermal characteristics. While both regulate near 22 V, RKZ22BKV#P1 requires PCB redesign for SMT assembly and delivers superior ESD immunity (±30 kV vs. ~1 kV) and lower rd (55 Ω vs. ~75 Ω).
What does the "B" in RKZ22BKV#P1 signify?
The "B" in RKZ22BKV#P1 denotes ±5% Zener voltage tolerance, consistent with Renesas' RKZ-KV Series nomenclature. It is distinct from "A" (±2%) and "C" (±10%) variants - confirming RKZ22BKV#P1's suitability for general-purpose regulation where moderate precision suffices.
RKZ22BKV#P1 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:
- -
RKZ22BKV#P1 FAQ
1.How can I place an order for RKZ22BKV#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ22BKV#P1 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 RKZ22BKV#P1 reliable?
The price and inventory of RKZ22BKV#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ22BKV#P1 is usually 5 days.
3.What payment methods are accepted for RKZ22BKV#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ22BKV#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ22BKV#P1?
RKZ22BKV#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ22BKV#P1 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 RKZ22BKV#P1?
For technical support, including RKZ22BKV#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ22BKV#P1 requirements.
6.How does Aetrix verify that RKZ22BKV#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ22BKV#P1 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 RKZ22BKV#P1 meets industry standards.
7.What is the process for return or replacement of RKZ22BKV#P1?
All RKZ22BKV#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ22BKV#P1, 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 RKZ22BKV#P1 part is unused and in its original packaging.
Return procedure for RKZ22BKV#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ22BKV#P1 Tags
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MM5Z5V1ST1G
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