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Renesas RKZ3.0B2KG#P1
- Part No.:
- RKZ3.0B2KG#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ3.0B2KG#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:81,000
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Product details
Overview
RKZ3.0B2KG#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 3.0 V (2.95–3.20 V), 50 μA maximum reverse current at 1.0 V, and 120 Ω dynamic resistance at 5 mA, housed in an ultra-small URP (SC-76A) surface-mount package for compact PCB layouts.
For engineers reviewing the RKZ3.0B2KG#P1 datasheet, RKZ3.0B2KG#P1 pinout, RKZ3.0B2KG#P1 application, or RKZ3.0B2KG#P1 equivalent, this device serves as a halogen-free, Pb-free voltage reference and ESD clamp in space-constrained consumer, industrial, and communication modules where stable low-voltage regulation and 30 kV ESD robustness are required.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its design targets low-current stabilization (IZ = 5 mA) with tight voltage tolerance (±3.3% at 3.0 V) and low temperature coefficient near zero crossing (≈0 mV/°C per Fig.2).
The RKZ3.0B2KG#P1 integrates ESD protection capability rated at ±30 kV (IEC 61000-4-2, C = 150 pF, R = 330 Ω), making it suitable for input/output line clamping without external TVS devices. Its URP package enables high-density mounting while maintaining thermal performance up to 150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.95–3.20 V at IZ = 5 mA - defines stable regulation range for 3.0 V rail referencing |
| Reverse Current (IR) | ≤50 μA at VR = 1.0 V - ensures minimal leakage in standby or low-power sleep modes |
| Dynamic Resistance (rd) | 120 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 200 mW on PCB - supports continuous operation in ambient temperatures up to +85°C |
| ESD Capability | ±30 kV (HBM, C = 150 pF, R = 330 Ω) - provides system-level ESD immunity without additional protection circuitry |
| Junction Temperature (Tj) | −55 to +150°C - enables use in extended-temperature industrial and automotive cabin applications |
| Package | URP (SC-76A), 2-pin surface-mount - footprint measures 1.55 × 1.25 × 0.45 mm for ultra-compact layout |
Pinout & Package
Package: Ultra-small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, mass ≈ 0.004 g. Dimensions: 1.55 mm (L) × 1.25 mm (W) × 0.45 mm (H). Cathode marked with band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated voltage node; reverse-biased terminal during Zener operation |
| 2 | Anode | Connected to ground or lower-potential reference; completes bias path for breakdown conduction |
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 1 |
| Ultra-small URP package | Enables ≥0.5 mm pitch routing and >2000 units/in² board density in portable electronics |
| Taped packaging (3,000 pcs/reel) | Supports automated SMT placement with standard 8 mm carrier tape and EIA-481 compliance |
| Stable low-voltage Zener characteristic | Minimal voltage drift over temperature (γZ ≈ 0 mV/°C near 3.0 V per Fig.2) improves reference accuracy |
| High ESD robustness | 30 kV HBM rating eliminates need for discrete ESD diodes on 3.0 V I/O lines in USB, GPIO, and sensor interfaces |
Applications
| USB Interface Protection | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Clamping D+ and D− lines against ESD events in USB 2.0 peripheral designs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting transient excursions to ≤3.3 V while preserving signal integrity. Use Value: Eliminates need for dual-channel TVS arrays; leverages RKZ3.0B2KG#P1's 30 kV HBM rating and low dynamic resistance to suppress fast transients without signal distortion. |
Use Scenario: Generating a precise 3.0 V reset threshold for ARM Cortex-M0+ microcontrollers with internal brown-out detection. IC Role / Device Role / Timing Role: Stable voltage reference feeding comparator input in power-on reset (POR) generator circuit. Use Value: Tight 2.95–3.20 V tolerance ensures deterministic reset assertion across temperature and supply variation, reducing false resets. |
| IoT Sensor Biasing | Low-Power ADC Reference |
|
Use Scenario: Providing stable bias voltage to MEMS accelerometers and humidity sensors operating from 3.3 V rails. IC Role / Device Role / Timing Role: Low-current Zener shunt regulator establishing clean 3.0 V analog supply for sensor excitation. Use Value: 50 μA max reverse leakage at 1.0 V minimizes quiescent current draw, extending battery life in coin-cell-powered nodes. |
Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in portable medical monitors and wearables. IC Role / Device Role / Timing Role: Precision voltage source defining full-scale input range for analog-to-digital conversion. Use Value: 120 Ω dynamic resistance ensures <0.1% reference error under 100 μA load variation, improving measurement repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ3V0T1G (ON Semiconductor) | Zener voltage 2.85–3.15 V; 350 mW Pd; SOD-123 package (2.7 × 1.6 × 1.1 mm) | Larger footprint and higher power dissipation; less suited for ultra-dense layouts | Select when higher surge handling or legacy SOD-123 compatibility is required |
| BZX384-C3V0 (Nexperia) | Zener voltage 2.85–3.15 V; 300 mW Pd; SOD-323 package (1.7 × 1.25 × 0.95 mm); 20 kV ESD rating | Smaller than SOD-123 but larger than URP; lower ESD robustness limits use in high-ESD environments | Select when cost sensitivity outweighs ESD margin and board area constraints |
Compared with MMSZ3V0T1G and BZX384-C3V0, the RKZ3.0B2KG#P1 offers the smallest footprint (URP), highest ESD rating (30 kV), and tightest VZ tolerance among 3.0 V Zeners in its class-making it optimal for next-generation miniaturized, ESD-hardened designs where PCB area and reliability are critical.
Availability
RKZ3.0B2KG#P1 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, and IoT sensor biasing requiring stable component supply, RoHS-compliant sourcing, and high-volume tape-and-reel delivery.
Supply support for RKZ3.0B2KG#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 industrial, automotive, and enterprise applications.
The RKZ-KG Series is part of Renesas' discrete protection portfolio, engineered specifically for low-voltage stabilization and ESD suppression in compact, high-reliability consumer and industrial electronics.
FAQ
What is the Zener voltage tolerance of RKZ3.0B2KG#P1?
The RKZ3.0B2KG#P1 has a specified Zener voltage range of 2.95 V to 3.20 V at 5 mA test current, corresponding to ±3.3% tolerance around the nominal 3.0 V rating. This tight tolerance ensures consistent voltage reference behavior across production lots and supports accurate reset threshold generation in microcontroller systems using RKZ3.0B2KG#P1.
Does RKZ3.0B2KG#P1 support lead-free soldering processes?
Yes, RKZ3.0B2KG#P1 is fully compatible with lead-free reflow soldering per JEDEC J-STD-020. Its halogen-free, Pb-free URP package meets IPC/JEDEC standards for peak reflow temperatures up to 260°C, and the device is supplied in moisture-sensitive level 1 tape-and-reel packaging-ensuring reliable assembly in modern SMT lines without RKZ3.0B2KG#P1 degradation.
How does the ESD rating of RKZ3.0B2KG#P1 compare to standard Zener diodes?
RKZ3.0B2KG#P1 is rated for ±30 kV HBM ESD (C = 150 pF, R = 330 Ω), significantly exceeding typical Zener diodes (often 8–16 kV). This high rating stems from optimized junction design and process control, allowing RKZ3.0B2KG#P1 to serve as both voltage reference and primary ESD clamp-reducing BOM count in USB, GPIO, and sensor interface circuits without compromising RKZ3.0B2KG#P1 stability.
Can RKZ3.0B2KG#P1 be used in place of a 3.3 V Zener diode?
No-RKZ3.0B2KG#P1 is specifically characterized for 3.0 V nominal operation (2.95–3.20 V), not 3.3 V. Substituting it for a 3.3 V Zener (e.g., RKZ3.3B2KG) would result in undershoot of the target regulation voltage, potentially causing improper reset assertion or reference error. Always match the exact Zener voltage grade; RKZ3.0B2KG#P1 must be used only where 3.0 V stabilization is specified.
What is the thermal derating behavior of RKZ3.0B2KG#P1 above 25°C?
RKZ3.0B2KG#P1 follows standard thermal derating: its 200 mW power dissipation rating decreases linearly above 25°C ambient, reaching zero at +150°C junction temperature. Per Fig.3 in the datasheet, usable power drops to ~120 mW at +85°C ambient-requiring appropriate copper pour and trace width design to maintain RKZ3.0B2KG#P1 junction temperature within limits during continuous operation.
RKZ3.0B2KG#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:
- -
RKZ3.0B2KG#P1 FAQ
1.How can I place an order for RKZ3.0B2KG#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ3.0B2KG#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 RKZ3.0B2KG#P1 reliable?
The price and inventory of RKZ3.0B2KG#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ3.0B2KG#P1 is usually 5 days.
3.What payment methods are accepted for RKZ3.0B2KG#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ3.0B2KG#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ3.0B2KG#P1?
RKZ3.0B2KG#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ3.0B2KG#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 RKZ3.0B2KG#P1?
For technical support, including RKZ3.0B2KG#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ3.0B2KG#P1 requirements.
6.How does Aetrix verify that RKZ3.0B2KG#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ3.0B2KG#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 RKZ3.0B2KG#P1 meets industry standards.
7.What is the process for return or replacement of RKZ3.0B2KG#P1?
All RKZ3.0B2KG#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ3.0B2KG#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 RKZ3.0B2KG#P1 part is unused and in its original packaging.
Return procedure for RKZ3.0B2KG#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ3.0B2KG#P1 Tags
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MM5Z5V1ST1G
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