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Renesas RKZ10B2KJ#R1
- Part No.:
- RKZ10B2KJ#R1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ10B2KJ#R1.pdf
- Description:
- DIODE ZENER 10V
- Quantity:
- Payment:
- Shipping:
Inventory:16,000
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Product details
Overview
RKZ10B2KJ#R1 from Renesas Electronics is a silicon planar Zener diode designed for surge absorption and voltage stabilization in low-power signal-line protection circuits, featuring a nominal Zener voltage of 9.77–10.21 V at 5 mA, 2 mW reverse leakage current at 7.0 V, and 30 Ω dynamic resistance at 5 mA test condition.
For engineers reviewing the RKZ10B2KJ#R1 datasheet, RKZ10B2KJ#R1 pinout, RKZ10B2KJ#R1 application, or RKZ10B2KJ#R1 equivalent, this device serves as a compact, surface-mount ESD-protected voltage reference and transient suppressor in space-constrained consumer and industrial control interfaces requiring stable clamping under ±30 kV HBM ESD stress.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to regulate or clamp voltage across sensitive inputs. Its 150 mW power dissipation rating (at Ta = 25°C on PCB) and 150°C maximum junction temperature support continuous operation in ambient temperatures up to 85°C with derating.
The device exhibits a negative temperature coefficient near 10 V (≈−0.04 %/°C per Fig.2), enabling predictable drift behavior in precision reference paths. Its ultra-small Flat Lead Package (UFP, JEITA code PWSF0002ZA-A, SC-79 compatible) ensures minimal board footprint and compatibility with standard SMT reflow profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.77–10.21 V at IZ = 5 mA - defines precise clamping threshold for overvoltage protection |
| Reverse Leakage Current (IR) | ≤2 μA at VR = 7.0 V - ensures minimal standby power loss in high-impedance sensing nodes |
| Dynamic Resistance (rd) | 30 Ω at IZ = 5 mA - determines voltage regulation stiffness under varying load/transient conditions |
| ESD Capability | ±30 kV per HBM (C = 150 pF, R = 330 Ω) - provides robust electrostatic discharge immunity without external TVS staging |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C on PCB - sets maximum steady-state energy handling in compact layouts |
| Junction Temperature (Tj) | −55 to +150°C - supports operation in extended industrial environments with thermal margin |
Pinout & Package
Package: Ultra Small Flat Lead (UFP), JEITA code PWSF0002ZA-A, SC-79 outline, mass ≈ 0.0016 g. Dimensions: 1.10 mm × 0.70 mm × 0.35 mm (L × W × H), lead pitch 0.60 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output or protected node; reverse-bias anode connection point for clamping action |
| 2 | Anode | Typically grounded or tied to lower-potential rail; completes conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount UFP package | 0.70 mm width enables placement in <1.0 mm pitch signal routing zones on dense PCBs |
| Emboss taping reel packaging | Supports high-speed automated pick-and-place assembly without manual handling or orientation errors |
| Stable Zener voltage tolerance | ±2.3% at 10 V enables accurate clamping without post-production calibration |
| High ESD robustness | ±30 kV HBM rating eliminates need for discrete ESD diodes in many USB, I²C, and GPIO protection designs |
Applications
| USB 2.0 Data Line Protection | I²C Bus Level Translation |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD events and cable-induced transients in portable peripherals. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between connector and PHY IC input pins. Use Value: Prevents latch-up or damage to 3.3 V tolerant USB transceivers while maintaining signal integrity up to 480 Mbps. |
Use Scenario: Stabilizing pull-up voltage on open-drain I²C SDA/SCL lines interfacing mixed-voltage masters and slaves. IC Role / Device Role / Timing Role: Precision Zener reference replacing resistor-based pull-ups to fix logic-high level at 10 V for level-shifting isolators. Use Value: Eliminates bus contention and timing skew caused by resistor divider droop under capacitive loading. |
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reset Circuit |
Use Scenario: Clamping analog sensor outputs (e.g., 0–10 V pressure transducers) before ADC input stages. IC Role / Device Role / Timing Role: Overvoltage limiter limiting excursion beyond 10.21 V to prevent ADC saturation or front-end op-amp rail-rail clipping. Use Value: Maintains measurement linearity and avoids system reset due to transient-induced ADC overflow. |
Use Scenario: Generating a clean, temperature-stable reset threshold for 3.3 V microcontrollers using a simple RC-Zener network. IC Role / Device Role / Timing Role: Voltage reference element setting precise 10 V trigger point for external reset supervisor ICs. Use Value: Reduces false resets caused by supply ripple or thermal drift compared to resistor-divider references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C10 | 10 V ±5%, 300 mW Pd, SOD-523 package, 90 Ω rd | Higher power rating but larger footprint and higher dynamic impedance | Select when higher surge energy handling is required and board area permits larger package |
| MMSZ5240B | 10 V ±5%, 500 mW Pd, SOD-123 package, 17 Ω rd, no specified HBM rating | Lower rd improves regulation but lacks documented ESD robustness | Select when tighter voltage regulation dominates over ESD immunity in controlled lab environments |
Compared with BZX584-C10 and MMSZ5240B, RKZ10B2KJ#R1 offers superior ESD immunity (±30 kV) in the smallest footprint (UFP/SC-79), making it optimal for miniaturized, field-deployed electronics where both size and ruggedness are critical.
Availability
RKZ10B2KJ#R1 is available at Aetrix Electronics and suitable for USB interface protection, I²C level translation, industrial sensor conditioning, and microcontroller reset circuitry requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for RKZ10B2KJ#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The RKZ-KJ Series is part of Renesas' discrete protection portfolio, engineered specifically for compact, high-reliability surge absorption and voltage stabilization in space-constrained consumer and industrial electronics.
FAQ
What is the Zener voltage tolerance of RKZ10B2KJ#R1 at 5 mA?
The RKZ10B2KJ#R1 has a guaranteed Zener voltage range of 9.77 V to 10.21 V at a test current of 5 mA, corresponding to a ±2.3% tolerance about the nominal 10 V value. This tight tolerance enables reliable clamping without additional trimming components in RKZ10B2KJ#R1-based protection circuits.
Does RKZ10B2KJ#R1 meet industry-standard ESD requirements?
Yes, RKZ10B2KJ#R1 is rated for ±30 kV human-body-model (HBM) ESD per JESD22-A114, tested with C = 150 pF and R = 330 Ω in both forward and reverse directions. This exceeds IEC 61000-4-2 Level 4 (±8 kV contact) and makes RKZ10B2KJ#R1 suitable for direct interface protection in unshielded consumer ports.
What is the thermal derating behavior of RKZ10B2KJ#R1 above 25°C ambient?
RKZ10B2KJ#R1 has a linear power derating curve beginning at 25°C ambient, reducing maximum allowable dissipation by approximately 1.2 mW/°C above that point, reaching zero at ~150°C. This behavior is defined in Fig.3 of the datasheet and must be applied when RKZ10B2KJ#R1 operates in enclosed enclosures or near heat sources.
Can RKZ10B2KJ#R1 be used in bidirectional ESD protection configurations?
No - RKZ10B2KJ#R1 is a unidirectional Zener diode with cathode-anode polarity. For bidirectional protection, two RKZ10B2KJ#R1 devices must be connected in series opposition (anode-to-anode), or a dedicated bidirectional TVS like the RClamp0524P should be selected instead of RKZ10B2KJ#R1.
What is the package marking for RKZ10B2KJ#R1?
The laser mark on RKZ10B2KJ#R1 is "10•", as shown in the Mark Code table on page 3 of the datasheet. This distinguishes it from other members of the RKZ-KJ family and confirms correct identification during visual inspection and automated optical recognition in RKZ10B2KJ#R1 assembly processes.
RKZ10B2KJ#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:
- -
RKZ10B2KJ#R1 FAQ
1.How can I place an order for RKZ10B2KJ#R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ10B2KJ#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 RKZ10B2KJ#R1 reliable?
The price and inventory of RKZ10B2KJ#R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ10B2KJ#R1 is usually 5 days.
3.What payment methods are accepted for RKZ10B2KJ#R1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ10B2KJ#R1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ10B2KJ#R1?
RKZ10B2KJ#R1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ10B2KJ#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 RKZ10B2KJ#R1?
For technical support, including RKZ10B2KJ#R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ10B2KJ#R1 requirements.
6.How does Aetrix verify that RKZ10B2KJ#R1 is sourced from the original manufacturer or authorized distributors?
All RKZ10B2KJ#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 RKZ10B2KJ#R1 meets industry standards.
7.What is the process for return or replacement of RKZ10B2KJ#R1?
All RKZ10B2KJ#R1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ10B2KJ#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 RKZ10B2KJ#R1 part is unused and in its original packaging.
Return procedure for RKZ10B2KJ#R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ10B2KJ#R1 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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