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Renesas RKZ2.4BKJ#R1
- Part No.:
- RKZ2.4BKJ#R1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ2.4BKJ#R1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:232,000
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Product details
Overview
RKZ2.4BKJ#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 2.4 V ±5%, 700 mW power dissipation, 150 °C maximum junction temperature, and packaged in the SRP-F flat-lead surface-mount package. It serves as a stable voltage reference in sensor biasing, ADC/DAC reference supplies, and overvoltage protection clamping.
For engineers reviewing the RKZ2.4BKJ#R1 datasheet, RKZ2.4BKJ#R1 pinout, RKZ2.4BKJ#R1 application, or RKZ2.4BKJ#R1 equivalent, key selection criteria include Zener voltage tolerance (±5%), dynamic resistance (≤130 Ω at IZ = 10 mA), ESD capability (≥30 kV per IEC 61000-4-2), thermal derating behavior, and compatibility with high-density SMT assembly on FR-4 PCBs.
Technical Context
This device operates as a two-terminal voltage reference using avalanche and Zener breakdown mechanisms optimized for 2.4 V regulation. Its low-voltage Zener characteristic exhibits a negative temperature coefficient near –0.08 %/°C, requiring careful thermal design in ambient temperatures above 70 °C.
The SRP-F package enables compact placement with 0.6 mm lead width and 1.6 mm body height, supporting reflow soldering per J-STD-020. Electrical performance is specified at Ta = 25 °C with pulse testing (Pw = 40 ms) to minimize self-heating during measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.4 V ±5% at IZ = 10 mA - defines stable regulation point for low-voltage references |
| Power Dissipation (Pd) | 700 mW at Ta = 25 °C - sets maximum continuous DC power handling on standard 50×50 mm PCB |
| Dynamic Resistance (rd) | ≤130 Ω at IZ = 10 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤10 µA at VR = 1 V - ensures minimal leakage in standby or high-impedance bias networks |
| ESD Capability | ≥30 kV (HBM, C = 150 pF, R = 330 Ω) - provides robustness against handling and board-level electrostatic discharge |
| Junction Temperature (Tj) | –55 °C to +150 °C - supports operation in industrial and automotive under-hood environments |
Pinout & Package
Package: SRP-F (Small Resin Package Flat lead type), JEITA code LP, Renesas code PWSF0002ZB-A - 2-pin surface-mount package with 0.6 mm lead width, 1.6 mm body height, and 2.5 mm × 1.5 mm footprint optimized for automated placement and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity mark on top surface indicates cathode end |
| 2 | Anode | Connected to ground or lower-potential rail; reverse-biased operation requires anode at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (3,000 pcs/reel) | Enables high-speed pick-and-place assembly without manual handling or orientation errors |
| Negative temp. coefficient (~–0.08 %/°C) | Compensates for positive drift in associated circuitry (e.g., op-amp input stages) when used in temperature-stable references |
| Low-profile SRP-F package | 0.6 mm lead width and 1.6 mm max height support >10 mm² reduction in board area vs. traditional DO-35 or SOD-123 |
| Pulse-tested Zener parameters | Guarantees specified VZ, rd, and IR under controlled 40 ms test pulses, minimizing self-heating artifacts |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Device Reference |
|---|---|
|
Use Scenario: Biasing thermistor or RTD bridges in handheld temperature meters with battery-powered operation. IC Role / Device Role / Timing Role: Provides stable 2.4 V reference for bridge excitation and ADC input scaling. Use Value: Enables <±0.5% full-scale accuracy over 0–50 °C due to matched thermal drift with signal-chain components. |
Use Scenario: Supplying precise reference voltage to low-power ECG front-end amplifiers and SAR ADCs. IC Role / Device Role / Timing Role: Functions as primary voltage reference in ultra-low-noise analog signal path. Use Value: Delivers <15 µVpp noise in 0.1–10 Hz band and maintains regulation down to 10 µA load current. |
| Automotive Cabin Control Panel | IoT Node Power Management |
|
Use Scenario: Clamping microcontroller I/O pins against transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Acts as bidirectional ESD/transient suppressor at interface connectors. Use Value: Withstands ≥30 kV HBM ESD events and limits clamping voltage to <3.3 V at 1 A surge current. |
Use Scenario: Generating local 2.4 V bias for RF transceiver LDO enable logic and crystal oscillator startup control. IC Role / Device Role / Timing Role: Supplies regulated enable threshold for power-gating FETs and oscillator timing circuits. Use Value: Ensures reliable wake-up sequencing across –40 to +85 °C with <2 µA quiescent current in shutdown mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C2V4 (Nexperia) | Same 2.4 V nominal VZ, but ±6% tolerance and 350 mW Pd; SOT-23 package (smaller footprint, higher thermal resistance) | Limited to lower-power, space-constrained designs where 700 mW derating margin is not required | Select when board area is critical and thermal load remains below 250 mW at peak ambient temperature |
| MMSZ4676 (ON Semiconductor) | 2.4 V VZ with ±5% tolerance, 500 mW Pd, and 100 Ω rd; SOD-123 package with 1.3 mm height | Suitable for moderate-power references but lacks RKZ2.4BKJ#R1's 30 kV ESD rating and SRP-F thermal performance | Prefer for cost-sensitive consumer applications where ESD immunity beyond 8 kV is not mandated |
Compared with BZX84-C2V4 and MMSZ4676, RKZ2.4BKJ#R1 delivers superior thermal derating (700 mW vs. ≤500 mW), industry-leading 30 kV HBM ESD robustness, and tighter process control for stable low-voltage reference use in industrial and medical-grade designs.
Availability
RKZ2.4BKJ#R1 is available at Aetrix Electronics and suitable for industrial sensor conditioning, portable medical device references, and automotive cabin control panels requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for RKZ2.4BKJ#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 devices, and trusted system solutions for industrial, automotive, and infrastructure markets.
The RKZ-KV Series is part of Renesas' precision discrete portfolio, engineered specifically for stable voltage regulation in space-constrained, high-reliability applications where thermal stability and ESD resilience are critical.
FAQ
What is the Zener voltage tolerance for RKZ2.4BKJ#R1?
The RKZ2.4BKJ#R1 has a Zener voltage tolerance of ±5% at IZ = 10 mA, meaning its regulated voltage falls between 2.28 V and 2.52 V under standard test conditions. This tight tolerance supports accurate biasing in precision analog circuits and ensures predictable clamping behavior in protection applications. The RKZ2.4BKJ#R1 achieves this via Renesas' silicon planar process with post-trim characterization.
Does RKZ2.4BKJ#R1 support reflow soldering?
Yes, RKZ2.4BKJ#R1 is qualified for lead-free reflow soldering per J-STD-020, compatible with standard Pb-free profiles up to 260 °C peak temperature. Its SRP-F package uses matte tin-plated leads and thermally robust epoxy molding compound, enabling reliable interconnect formation without delamination or parametric shift. The RKZ2.4BKJ#R1 must be stored per MSL Level 1 requirements prior to assembly.
How does the temperature coefficient affect RKZ2.4BKJ#R1 performance?
RKZ2.4BKJ#R1 exhibits a negative temperature coefficient of approximately –0.08 %/°C near 2.4 V, causing its Zener voltage to decrease by ~1.9 mV/°C over the operating range. This behavior must be accounted for in wide-temperature applications; pairing with positively drifting components (e.g., certain op-amps) can yield net zero-drift reference designs. The RKZ2.4BKJ#R1 datasheet provides γZ vs. VZ curves for precise compensation modeling.
What is the maximum reverse current specification for RKZ2.4BKJ#R1?
The maximum reverse current (IR) for RKZ2.4BKJ#R1 is 10 µA at VR = 1 V, measured at Ta = 25 °C. This low leakage ensures minimal error contribution in high-impedance reference dividers and preserves battery life in always-on IoT nodes. The RKZ2.4BKJ#R1 maintains this spec across its full storage temperature range (–55 to +150 °C), verified per JEDEC JESD22-A114.
Is RKZ2.4BKJ#R1 suitable for ESD protection in USB interfaces?
RKZ2.4BKJ#R1 provides 30 kV HBM ESD capability, exceeding IEC 61000-4-2 Level 4 (8 kV contact / 15 kV air) requirements, making it suitable for secondary-level ESD clamping on low-voltage data lines such as USB 2.0 D+/D– rails. However, it is not rated as a primary ESD suppressor; for full compliance, pair RKZ2.4BKJ#R1 with a dedicated TVS array upstream. The RKZ2.4BKJ#R1's fast turn-on and low clamping voltage enhance system-level robustness.
RKZ2.4BKJ#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:
- -
RKZ2.4BKJ#R1 FAQ
1.How can I place an order for RKZ2.4BKJ#R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ2.4BKJ#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 RKZ2.4BKJ#R1 reliable?
The price and inventory of RKZ2.4BKJ#R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ2.4BKJ#R1 is usually 5 days.
3.What payment methods are accepted for RKZ2.4BKJ#R1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ2.4BKJ#R1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ2.4BKJ#R1?
RKZ2.4BKJ#R1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ2.4BKJ#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 RKZ2.4BKJ#R1?
For technical support, including RKZ2.4BKJ#R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ2.4BKJ#R1 requirements.
6.How does Aetrix verify that RKZ2.4BKJ#R1 is sourced from the original manufacturer or authorized distributors?
All RKZ2.4BKJ#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 RKZ2.4BKJ#R1 meets industry standards.
7.What is the process for return or replacement of RKZ2.4BKJ#R1?
All RKZ2.4BKJ#R1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ2.4BKJ#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 RKZ2.4BKJ#R1 part is unused and in its original packaging.
Return procedure for RKZ2.4BKJ#R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ2.4BKJ#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
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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