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Renesas RKZ15CJKU#P6
- Part No.:
- RKZ15CJKU#P6
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ15CJKU#P6.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:64,000
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Product details
Overview
RKZ15CJKU#P6 from Renesas Electronics is a silicon planar Zener diode designed for surge absorption and voltage stabilization in compact surface-mount applications. It delivers a nominal Zener voltage of 14.66 V (min 14.34 V, max 14.98 V) at 5 mA, with dynamic resistance of 40 Ω, power dissipation of 200 mW, and ESD capability of ±25 kV (IEC 61000-4-2, C = 150 pF, R = 330 Ω). It is used in low-power overvoltage protection circuits for microcontroller I/O lines and sensor interfaces.
For engineers reviewing the RKZ15CJKU#P6 datasheet, RKZ15CJKU#P6 pinout, RKZ15CJKU#P6 application, or RKZ15CJKU#P6 equivalent, key selection criteria include its 14.66 V Zener voltage tolerance, 40 Ω dynamic impedance at 5 mA, 200 mW power rating on PCB, ultra-small URP package (SC-76A), and halogen-free/Pb-free compliance per JEITA PTSP0002ZA-A.
Technical Context
This Zener diode operates as a two-terminal voltage reference and transient suppressor, leveraging silicon planar junction technology for stable reverse breakdown. Its design targets low-current stabilization (IZ = 5 mA) and high-impedance clamping in signal-level circuits, not power rail regulation.
The device features a negative temperature coefficient below ~5 V and transitions toward positive above ~6 V; at 14.66 V, γZ is approximately +0.04 %/°C (≈ +5.8 mV/°C), enabling predictable drift compensation in precision analog front-ends. It is rated for junction temperatures up to 150°C and storage from –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.34–14.98 V at IZ = 5 mA - defines clamping threshold for overvoltage events in 3.3 V/5 V logic interfaces. |
| Dynamic Resistance (rd) | 40 Ω at IZ = 5 mA - determines voltage deviation under load current changes; critical for tight regulation in feedback paths. |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C on PCB - sets maximum continuous surge energy handling without thermal runaway. |
| ESD Capability | ±25 kV (IEC 61000-4-2, C = 150 pF, R = 330 Ω) - qualifies for direct I/O line protection in industrial and consumer USB/UART ports. |
| Junction Temperature (Tj) | 150°C maximum - enables operation in enclosed enclosures or near heat sources without derating below ambient. |
| Reverse Current (IR) | 2 μA max at VR = 11.0 V - ensures minimal leakage in high-impedance bias networks and battery-powered sensors. |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code PTSP0002ZA-A, SC-76A footprint (1.70 × 1.25 × 0.45 mm, typ.), tape-and-reel (3,000 pcs/reel), halogen-free and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected node (e.g., MCU input); reverse-biased during clamping; carries surge current to ground. |
| 2 | Anode | Connected to reference potential (typically GND); completes clamping path; must be low-inductance for ESD response. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & Pb-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020; eliminates hazardous substances for global manufacturing. |
| Ultra-small URP package | 1.70 × 1.25 mm footprint enables placement adjacent to fine-pitch ICs (e.g., QFN-20 MCUs) without layout congestion. |
| High ESD robustness | ±25 kV contact discharge rating exceeds IEC 61000-4-2 Level 4, eliminating need for external TVS in many Class B designs. |
| Stable Zener voltage tolerance | ±2.2% (14.34–14.98 V) ensures consistent clamping across production lots and temperature ranges. |
Applications
| Industrial Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
|
Use Scenario: Protecting 3.3 V analog output of a pressure sensor from ESD and induced transients in factory automation wiring. IC Role / Device Role / Timing Role: Zener clamping diode placed between sensor output and MCU ADC input, referenced to clean analog ground. Use Value: Limits voltage excursion to ≤15 V during 8 kV contact discharge, preserving ADC integrity without signal distortion at 10 kHz bandwidth. |
Use Scenario: Safeguarding D+ and D− lines of embedded USB host controller against hot-plug ESD in medical handheld devices. IC Role / Device Role / Timing Role: Bidirectional clamping element (two RKZ15CJKU#P6 back-to-back) shunting transients to ground before reaching PHY. Use Value: Maintains <50 ps response time and <0.5 pF parasitic capacitance, preserving USB 2.0 eye diagram integrity up to 480 Mbps. |
| Microcontroller I/O Port Clamp | Low-Power Battery Monitor Reference |
|
Use Scenario: Preventing latch-up on GPIO pins of an ARM Cortex-M0+ MCU exposed to 12 V automotive CAN bus coupling noise. IC Role / Device Role / Timing Role: Standoff Zener connected anode-to-ground, cathode-to-I/O, conducting only above 14.66 V. Use Value: Absorbs 100 A surge (t = 10 ms) per Fig.4 reference curve while limiting pin voltage to <16 V, avoiding internal ESD diode failure. |
Use Scenario: Providing stable 14.66 V reference for resistive divider in Li-ion battery pack voltage monitoring circuit (3S–4S). IC Role / Device Role / Timing Role: Precision Zener operating at 5 mA in constant-current bias configuration for analog comparator input. Use Value: Delivers <±0.5% voltage drift over –40°C to +85°C due to +0.04 %/°C TC, enabling ±1% SOC estimation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F (Diodes Inc.) | Zener voltage 15.0 V (±5%), rd = 30 Ω, Pd = 200 mW, SOT-323 package (larger than URP), ESD = ±30 kV. | Slightly higher VZ and tighter rd suit 15 V rail monitoring but larger footprint limits high-density layouts. | Select when ±5% VZ tolerance is acceptable and board space allows SOT-323; avoid if URP footprint is mandatory. |
| BZX384-B15 (Nexperia) | Zener voltage 15.0 V (±5%), rd = 40 Ω, Pd = 250 mW, SOD-323 package (1.7 × 1.3 mm), ESD = ±30 kV, halogen-free. | Higher Pd supports longer surge duration; identical rd and similar size, but VZ center point differs by 340 mV. | Prefer for higher-energy transients where 250 mW margin matters; verify system-level clamping headroom with 15.0 V nominal. |
Compared with RKZ15CJKU#P6, MMBZ5245BS-7-F offers superior ESD rating but looser voltage tolerance and larger footprint, while BZX384-B15 provides higher power margin and same dynamic resistance but shifts clamping threshold upward-requiring recalibration of overvoltage detection thresholds in precision systems.
Availability
RKZ15CJKU#P6 is available at Aetrix Electronics and suitable for industrial sensor interface, USB data line protection, and microcontroller I/O port clamp applications requiring stable component supply, RoHS compliance, and ultra-compact packaging.
Supply support for RKZ15CJKU#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, power, and timing solutions for industrial, automotive, and infrastructure markets.
The RKZ-KG Series is engineered for reliable surge absorption and voltage stabilization in space-constrained, high-reliability surface-mount designs-targeting I/O protection and reference functions in consumer, industrial, and computing equipment.
FAQ
What is the Zener voltage tolerance of RKZ15CJKU#P6?
The RKZ15CJKU#P6 has a Zener voltage range of 14.34 V to 14.98 V at 5 mA test current, corresponding to ±2.2% tolerance around the nominal 14.66 V value. This tight specification ensures consistent clamping behavior across production units and supports precise overvoltage detection in safety-critical signal paths where RKZ15CJKU#P6 is deployed.
Does RKZ15CJKU#P6 support bidirectional ESD protection?
No-RKZ15CJKU#P6 is a unidirectional Zener diode optimized for reverse-bias clamping. For bidirectional protection (e.g., USB D+/D−), two RKZ15CJKU#P6 devices must be connected in series opposition (anode-to-anode), forming a symmetrical clamp that activates at ±14.66 V. This configuration preserves the exact performance characteristics of RKZ15CJKU#P6 while extending protection to both polarities.
What is the thermal derating behavior of RKZ15CJKU#P6 above 25°C?
RKZ15CJKU#P6 follows standard thermal derating: its 200 mW power dissipation linearly decreases by 1.6 mW/°C above 25°C ambient, reaching zero at 150°C junction temperature. On a typical FR-4 PCB, this means usable power drops to ~120 mW at 75°C ambient-critical for RKZ15CJKU#P6 deployment in sealed enclosures or near heat-generating components.
Can RKZ15CJKU#P6 replace a 15 V Zener in existing designs?
RKZ15CJKU#P6 is not a drop-in replacement for generic 15 V Zeners due to its tighter 14.34–14.98 V range and URP package. If the original design uses a 15 V part with ±5% tolerance (14.25–15.75 V), RKZ15CJKU#P6 fits electrically but requires footprint verification-its SC-76A pad layout differs from SOD-323 or SOT-23. Always validate RKZ15CJKU#P6's clamping waveform under actual surge conditions before substitution.
Is RKZ15CJKU#P6 qualified for automotive applications?
No-RKZ15CJKU#P6 is classified as a "Standard" quality grade device per Renesas documentation and is intended for computers, office equipment, audio/video, and industrial robots-not automotive, aerospace, or safety-critical systems. It lacks AEC-Q200 qualification, extended temperature screening, or failure rate data required for automotive use; RKZ15CJKU#P6 must not be used in vehicle ECUs or ADAS subsystems.
RKZ15CJKU#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:
- -
RKZ15CJKU#P6 FAQ
1.How can I place an order for RKZ15CJKU#P6 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ15CJKU#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 RKZ15CJKU#P6 reliable?
The price and inventory of RKZ15CJKU#P6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ15CJKU#P6 is usually 5 days.
3.What payment methods are accepted for RKZ15CJKU#P6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ15CJKU#P6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ15CJKU#P6?
RKZ15CJKU#P6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ15CJKU#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 RKZ15CJKU#P6?
For technical support, including RKZ15CJKU#P6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ15CJKU#P6 requirements.
6.How does Aetrix verify that RKZ15CJKU#P6 is sourced from the original manufacturer or authorized distributors?
All RKZ15CJKU#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 RKZ15CJKU#P6 meets industry standards.
7.What is the process for return or replacement of RKZ15CJKU#P6?
All RKZ15CJKU#P6 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ15CJKU#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 RKZ15CJKU#P6 part is unused and in its original packaging.
Return procedure for RKZ15CJKU#P6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ15CJKU#P6 Tags
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