Renesas RKZ2.0BKG#P1
- Part No.:
- RKZ2.0BKG#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ2.0BKG#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:

- Shipping:

Inventory:426,000
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Product details
Overview
RKZ2.0BKG#P1 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 2.0 V ±5%, 700 mW power dissipation, 30 kΩ dynamic resistance at 1 mA test current, and ESD capability of ±30 kV (HBM). It operates as a two-terminal shunt voltage reference in feedback loops and bias networks.
For engineers reviewing the RKZ2.0BKG#P1 datasheet, RKZ2.0BKG#P1 pinout, RKZ2.0BKG#P1 application, or RKZ2.0BKG#P1 equivalent, this device is selected for stable low-voltage reference generation where tight tolerance, low temperature coefficient, and surface-mount compactness are critical - especially in portable instrumentation, sensor signal conditioning, and battery-monitoring ICs.
Technical Context
The RKZ2.0BKG#P1 implements a planar-diffused Zener junction optimized for stable breakdown at 2.0 V, with a negative temperature coefficient near –0.08 %/°C (–1.6 mV/°C) per Fig.2. Its SRP-F flat-lead package enables high-density SMT placement while maintaining thermal performance on standard FR-4 PCBs.
Electrical behavior is defined under pulsed conditions (Pw = 40 ms), with reverse current limited to ≤10 µA at VR = 1 V and Zener voltage measured at IZ = 1 mA. The device meets JEITA Package Code LP and Renesas PWSF0002ZB-A taping standard (3,000 pcs/reel).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.0 V ±5% at IZ = 1 mA - provides stable reference point for low-voltage analog circuitry |
| Dynamic Resistance (rd) | 30 kΩ max at IZ = 1 mA - ensures minimal output impedance variation under load changes |
| Power Dissipation (Pd) | 700 mW at Ta = 25°C on 50×50 mm glass-epoxy board - supports moderate continuous power in compact layouts |
| ESD Capability | ±30 kV HBM (C = 150 pF, R = 330 Ω) - enhances robustness during handling and board assembly |
| Junction Temperature (Tj) | 150°C max - allows operation in thermally constrained industrial and automotive under-hood environments |
| Reverse Current (IR) | ≤10 µA at VR = 1 V - guarantees low leakage in high-impedance reference nodes |
| Package | SRP-F (JEITA LP) - 2.5 mm × 1.2 mm × 0.6 mm flat-lead SMT package enabling 0.5 mm pitch layout |
Pinout & Package
SRP-F package is a small resin flat-lead surface-mount device with two terminals: Cathode (Pin 1) and Anode (Pin 2), marked with cathode band and laser code "2 ⋅ 0" per Renesas marking convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated output node; carries reverse current during regulation |
| 2 (Anode) | Reference ground terminal | Biased to circuit ground or lower potential; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Taped delivery (3,000 pcs/reel) | Enables automated pick-and-place assembly without manual handling or orientation errors |
| Negative tempco (–1.6 mV/°C) | Compensates for positive tempcos in associated circuitry, improving overall system reference stability |
| Low IR (≤10 µA @ 1 V) | Minimizes error in high-resistance divider networks and preserves battery life in always-on sensors |
| SRP-F footprint | Reduces PCB area by >40% vs. traditional SOD-323, supporting miniaturized wearables and IoT edge nodes |
| HBM ESD rating (±30 kV) | Eliminates need for external protection components in ESD-prone consumer and industrial interfaces |
Applications
| Portable Battery Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage in handheld medical devices with 2.0 V ADC reference input. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 2.0 V基准 for SAR ADC conversion. Use Value: Enables ±0.1% full-scale accuracy over –20°C to +70°C due to matched tempco compensation with ADC internal reference. |
Use Scenario: Biasing bridge amplifiers in pressure transducers requiring ultra-low drift references. IC Role / Device Role / Timing Role: Low-noise Zener reference stabilizing op-amp offset and gain-setting resistors. Use Value: Reduces total system offset drift to <2 µV/°C by replacing higher-tempco alternatives like TL431. |
| USB-Powered Audio DAC Reference | Automotive Cabin Controller Power Sequencing |
|
Use Scenario: Generating clean 2.0 V reference for audio DACs in USB-C powered headphones. IC Role / Device Role / Timing Role: Low-ESR shunt regulator filtering ripple from switched USB 5 V supply. Use Value: Achieves SNR >110 dB by suppressing 100 kHz switching noise via 30 kΩ rd and low capacitance (<2 pF). |
Use Scenario: Enabling precise 2.0 V threshold detection for microcontroller reset sequencing in HVAC control modules. IC Role / Device Role / Timing Role: Precision voltage threshold element in discrete reset comparator circuit. Use Value: Guarantees reset assertion within ±10 mV across temperature, preventing brown-out lockup during cold cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Diodes Inc. BZX84-C2V0 | 2.0 V ±5%, SOT-23, rd = 100 Ω @ 5 mA - higher dynamic resistance, lower ESD (±8 kV) | Higher power dissipation (350 mW) but larger footprint; less suitable for ultra-low-leakage designs | Select when cost sensitivity outweighs ESD robustness and leakage requirements |
| Vishay BZX79-C2V0 | 2.0 V ±5%, DO-35 axial, rd = 120 Ω @ 5 mA - no SMT compatibility, Tj = 175°C | Requires through-hole assembly; unsuitable for high-density PCBs or automated production | Select only for legacy repair or non-SMT prototyping where thermal margin >175°C is mandatory |
Compared with RKZ2.0BKG#P1, BZX84-C2V0 offers lower unit cost but sacrifices ESD immunity and leakage performance, while BZX79-C2V0 trades SMT compatibility for extended thermal range - making RKZ2.0BKG#P1 optimal for modern compact, high-reliability SMT designs demanding both precision and ruggedness.
Availability
RKZ2.0BKG#P1 is available at Aetrix Electronics and suitable for portable instrumentation, sensor interface modules, and USB-powered audio systems requiring stable component supply with guaranteed long-term sourcing.
Supply support for RKZ2.0BKG#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 specializing in microcontrollers, analog power, and timing solutions for industrial, automotive, and infrastructure markets.
The RKZ-KV Series was developed specifically for high-stability, low-leakage Zener reference applications in space-constrained SMT designs - emphasizing precision, ESD resilience, and thermal reliability across commercial and extended temperature ranges.
FAQ
What is the Zener voltage tolerance and test condition for RKZ2.0BKG#P1?
The RKZ2.0BKG#P1 has a Zener voltage of 2.0 V with ±5% tolerance, measured at a test current of 1 mA under pulsed conditions (Pw = 40 ms). This specification ensures predictable regulation behavior in low-current reference applications such as sensor biasing and ADC references, where stable voltage thresholds are essential for measurement accuracy.
Does RKZ2.0BKG#P1 support high-density PCB layouts?
Yes, RKZ2.0BKG#P1 uses the SRP-F package (2.5 mm × 1.2 mm × 0.6 mm), a flat-lead surface-mount design optimized for compact, high-density layouts. Its JEITA LP footprint enables 0.5 mm pitch routing and reduces board area by over 40% compared to SOD-323 packages - making it ideal for wearables, IoT nodes, and multi-layer portable electronics where space is constrained.
What is the ESD rating of RKZ2.0BKG#P1 and how is it tested?
RKZ2.0BKG#P1 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 using 10 pulses. This high ESD immunity eliminates the need for external protection components during board assembly and improves field reliability in consumer and industrial environments prone to static discharge.
How does the temperature coefficient of RKZ2.0BKG#P1 affect system-level reference stability?
RKZ2.0BKG#P1 exhibits a negative temperature coefficient of approximately –1.6 mV/°C (–0.08 %/°C), which can be leveraged to counteract positive tempcos in associated components like op-amps or resistors. When paired with complementary elements in a reference network, this enables net system drift below 2 µV/°C - critical for precision data acquisition and calibration-critical instrumentation.
Is RKZ2.0BKG#P1 suitable for automotive under-hood applications?
RKZ2.0BKG#P1 supports junction temperatures up to 150°C and operates reliably across –55°C to +150°C storage range, meeting requirements for many automotive cabin and engine-peripheral modules. While not AEC-Q200 qualified, its thermal and ESD robustness makes it suitable for non-safety-critical functions such as HVAC control logic, infotainment power sequencing, and sensor interface biasing in controlled thermal zones.
RKZ2.0BKG#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:
- -
RKZ2.0BKG#P1 FAQ
1.How can I place an order for RKZ2.0BKG#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ2.0BKG#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 RKZ2.0BKG#P1 reliable?
The price and inventory of RKZ2.0BKG#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ2.0BKG#P1 is usually 5 days.
3.What payment methods are accepted for RKZ2.0BKG#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ2.0BKG#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ2.0BKG#P1?
RKZ2.0BKG#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ2.0BKG#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 RKZ2.0BKG#P1?
For technical support, including RKZ2.0BKG#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ2.0BKG#P1 requirements.
6.How does Aetrix verify that RKZ2.0BKG#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ2.0BKG#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 RKZ2.0BKG#P1 meets industry standards.
7.What is the process for return or replacement of RKZ2.0BKG#P1?
All RKZ2.0BKG#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ2.0BKG#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 RKZ2.0BKG#P1 part is unused and in its original packaging.
Return procedure for RKZ2.0BKG#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ2.0BKG#P1 Tags

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