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Renesas RKZ24B2KG#P1
- Part No.:
- RKZ24B2KG#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ24B2KG#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:51,000
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Product details
Overview
RKZ24B2KG#P1 from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization and transient surge absorption in low-power signal and bias circuits. It delivers a nominal Zener voltage of 24.25 V (min 23.72 V, max 24.78 V) at 5 mA, with dynamic resistance of 60 Ω, reverse current ≤2 μA at 19.0 V, and ESD capability of ±15 kV (IEC 61000-4-2). It is used in voltage reference circuits for sensor signal conditioning and microcontroller I/O protection.
For engineers reviewing the RKZ24B2KG#P1 datasheet, RKZ24B2KG#P1 pinout, RKZ24B2KG#P1 application, or RKZ24B2KG#P1 equivalent, key selection criteria include Zener voltage tolerance, low dynamic impedance for regulation stability, ultra-small URP package footprint for high-density PCBs, and verified ±15 kV HBM ESD robustness in compact consumer and industrial electronics.
Technical Context
This device operates as a two-terminal, cathode-anode configured Zener diode with sharp reverse breakdown characteristics optimized for stable DC voltage clamping and low-noise reference generation. Its planar junction construction ensures consistent parameter distribution and thermal stability up to 150°C junction temperature.
The RKZ24B2KG#P1 is rated for 200 mW power dissipation on PCB, exhibits a negative temperature coefficient near 24 V (≈−0.04 %/°C per Fig.2), and supports non-repetitive surge reverse power handling up to ~1.2 W for 10 ms pulses (per Fig.4 reference curve).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 23.72–24.78 V at IZ = 5 mA - defines precise clamping threshold for overvoltage protection and reference accuracy |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load current changes |
| Reverse Current (IR) | ≤2 μA at VR = 19.0 V - guarantees low leakage in standby or high-impedance bias networks |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C on PCB - sets maximum continuous DC power handling in standard layout |
| ESD Capability | ±15 kV per IEC 61000-4-2 (HBM) - provides robust immunity against human-body model electrostatic discharge events |
| Junction Temperature (Tj) | −55 to +150°C - enables reliable operation in extended industrial ambient environments |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 1.25 × 0.80 × 0.45 mm (L × W × H), tape-and-reel packaging (3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node during reverse-bias operation; carries Zener current when clamping |
| 2 | Anode | Connected to lower-potential node (typically GND or reference); completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, Pb-free construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level (MSL) requirements |
| Ultra-small URP package | Enables placement in <1.0 mm² board area - critical for space-constrained wearables and IoT sensor nodes |
| Taped delivery | Supports automated SMT assembly with 3,000-unit reels and industry-standard carrier tape pitch |
| Stable Zener voltage tolerance | ±2.2% total variation (23.72–24.78 V) ensures predictable clamping without post-production trimming |
Applications
| Voltage Reference for Analog Sensors | Microcontroller I/O Protection |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., pressure, load cell) in battery-powered condition monitoring modules. IC Role / Device Role / Timing Role: Two-terminal Zener reference source replacing larger TL431-based circuits. Use Value: Delivers 24.25 V ±2.2% with 60 Ω dynamic impedance, minimizing sensor output drift across temperature and supply variation. |
Use Scenario: Clamping ESD transients on UART, I²C, or GPIO lines of ARM Cortex-M microcontrollers in industrial gateways. IC Role / Device Role / Timing Role: Passive bidirectional surge absorber placed directly at connector entry points. Use Value: Withstands ±15 kV HBM ESD strikes while limiting line voltage to ≤24.8 V, preventing MCU input latch-up or damage. |
| Low-Power Bias Supply Regulation | Overvoltage Detection Threshold |
Use Scenario: Generating a clean 24 V bias rail for op-amps and ADC drivers in portable test equipment powered by Li-ion batteries. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage across parallel load despite input ripple or aging. Use Value: 200 mW rating and 60 Ω rd allow regulation within ±0.12 V over 1–5 mA load range, reducing need for active LDOs. |
Use Scenario: Setting trip point for discrete comparator-based overvoltage lockout in 24 V DC power supplies for factory automation controllers. IC Role / Device Role / Timing Role: Precision Zener element defining exact 24.25 V detection threshold before shutdown activation. Use Value: Tight 2.2% VZ tolerance eliminates calibration step and improves system-level OVP repeatability to ±0.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24LT1G | Zener voltage 22.8–25.6 V (±5%), rd = 90 Ω, Pd = 300 mW, SOT-23 package (larger footprint) | Higher power rating but looser voltage tolerance and higher dynamic impedance | Preferred where board space allows and tighter regulation is not required |
| MMSZ5248B-TP | Zener voltage 23.5–24.9 V (±5%), rd = 70 Ω, Pd = 500 mW, SOD-123 package (2.5×1.3 mm) | Higher power and same voltage range, but 3× larger footprint than URP | Chosen when thermal margin is critical and PCB real estate is available |
Compared with BZX84-C24LT1G and MMSZ5248B-TP, the RKZ24B2KG#P1 offers superior voltage accuracy (±2.2% vs. ±5%), lower dynamic resistance (60 Ω vs. ≥70 Ω), and the smallest available footprint (1.25×0.80 mm), making it optimal for miniaturized, high-precision voltage reference and clamping functions where space and regulation stability are constrained.
Availability
RKZ24B2KG#P1 is available at Aetrix Electronics and suitable for voltage reference design, ESD protection circuits, and low-power bias regulation requiring stable component supply, full traceability, and RoHS-compliant sourcing.
Supply support for RKZ24B2KG#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 SoC solutions for automotive, industrial, and enterprise applications.
The RKZ-KG Series is part of Renesas' discrete protection portfolio, engineered specifically for compact, high-reliability voltage stabilization and surge suppression in space-constrained consumer, industrial, and IoT edge devices.
FAQ
What is the Zener voltage tolerance of RKZ24B2KG#P1?
The RKZ24B2KG#P1 has a guaranteed Zener voltage range of 23.72 V to 24.78 V at 5 mA test current, corresponding to a ±2.2% tolerance about the nominal 24.25 V value. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the REJ03G1512-0300 datasheet and enables precise clamping without external calibration. The RKZ24B2KG#P1 achieves this via process-controlled planar junction fabrication.
Does RKZ24B2KG#P1 support automated SMT assembly?
Yes, RKZ24B2KG#P1 is supplied in tape-and-reel format (3,000 pcs/reel) with carrier tape conforming to EIA-481 standards. Its URP package (SC-76A footprint) is compatible with standard 0402-class pick-and-place equipment. The laser-marked "24•" identification (per page 3) ensures machine-readable verification during AOI inspection. RKZ24B2KG#P1 requires no special tooling or reflow profile deviations beyond standard lead-free soldering.
What is the maximum reverse voltage RKZ24B2KG#P1 can withstand before breakdown?
The RKZ24B2KG#P1 begins controlled Zener breakdown at its specified VZ range (23.72–24.78 V) and maintains stable regulation up to its absolute maximum rating of 19.0 V reverse voltage at which leakage remains ≤2 μA. Operation above VZ is intentional and safe within its 200 mW power limit; sustained reverse voltage significantly exceeding VZ without current limiting will exceed Pd and cause thermal failure. RKZ24B2KG#P1 is not rated for avalanche operation outside its Zener region.
Is RKZ24B2KG#P1 halogen-free and RoHS compliant?
Yes, RKZ24B2KG#P1 belongs to the RKZ-KG P6 Series, explicitly designated as halogen-free and Pb-free per the ordering information on page 1 of REJ03G1512-0300. It meets EU RoHS Directive 2011/65/EU and satisfies JEDEC J-STD-020 moisture sensitivity Level 1 requirements. The RKZ24B2KG#P1 material declaration confirms zero brominated flame retardants (BFRs) and no chlorine-containing compounds above threshold limits.
How does the ESD rating of RKZ24B2KG#P1 compare to standard Zener diodes?
RKZ24B2KG#P1 is rated for ±15 kV HBM ESD per IEC 61000-4-2 (page 2, note 2), exceeding typical Zener diodes rated at ±8 kV. This enhanced robustness stems from Renesas' optimized planar junction termination and passivation. In practice, RKZ24B2KG#P1 reliably suppresses ESD transients on signal lines without degradation, making it suitable for direct placement at I/O connectors. The RKZ24B2KG#P1 maintains full specification compliance after 10 consecutive 15 kV strikes.
RKZ24B2KG#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:
- -
RKZ24B2KG#P1 FAQ
1.How can I place an order for RKZ24B2KG#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ24B2KG#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 RKZ24B2KG#P1 reliable?
The price and inventory of RKZ24B2KG#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ24B2KG#P1 is usually 5 days.
3.What payment methods are accepted for RKZ24B2KG#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ24B2KG#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ24B2KG#P1?
RKZ24B2KG#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ24B2KG#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 RKZ24B2KG#P1?
For technical support, including RKZ24B2KG#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ24B2KG#P1 requirements.
6.How does Aetrix verify that RKZ24B2KG#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ24B2KG#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 RKZ24B2KG#P1 meets industry standards.
7.What is the process for return or replacement of RKZ24B2KG#P1?
All RKZ24B2KG#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ24B2KG#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 RKZ24B2KG#P1 part is unused and in its original packaging.
Return procedure for RKZ24B2KG#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ24B2KG#P1 Tags
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