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Renesas RKZ5.6B2KJ#R1
- Part No.:
- RKZ5.6B2KJ#R1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ5.6B2KJ#R1.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:35,000
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Product details
Overview
RKZ5.6B2KJ from Renesas Electronics is a silicon planar Zener diode designed for precision voltage stabilization and transient surge absorption in low-power signal paths. It delivers a nominal Zener voltage of 5.6 V (min 5.49 V, max 5.73 V) at 5 mA test current, with dynamic resistance of 80 Ω, 150 mW power dissipation, and ESD capability of ±30 kV (HBM). It is commonly deployed in I/O port protection and reference voltage generation for microcontroller peripherals.
For engineers reviewing the RKZ5.6B2KJ datasheet, RKZ5.6B2KJ pinout, RKZ5.6B2KJ application, or RKZ5.6B2KJ equivalent, key selection criteria include its tight 5.6 V tolerance, ultra-small UFP package footprint, low dynamic impedance, high ESD robustness, and suitability for space-constrained consumer and industrial control PCBs.
Technical Context
This device operates as a two-terminal voltage reference and clamping element, leveraging silicon planar junction technology to maintain stable reverse breakdown behavior under DC bias and transient stress. Its electrical characteristics are specified at 25°C ambient with pulse testing (Pw = 40 ms) for Zener voltage and dynamic resistance.
The RKZ5.6B2KJ is optimized for surface-mount applications requiring minimal board area and high reliability in low-energy surge events. Its thermal derating curve supports operation up to 150°C junction temperature, with power dissipation decreasing linearly above 25°C ambient per the published Pd vs. Ta graph.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.49–5.73 V at IZ = 5 mA - ensures precise 5.6 V reference with ±2.1% tolerance for analog sensing and supply rail monitoring. |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 5 mA - provides low AC impedance for effective noise suppression and stable regulation under varying load conditions. |
| Power Dissipation (Pd) | 150 mW at Ta = 25°C - defines maximum continuous DC power handling on standard PCB; derates to zero at 150°C ambient. |
| Reverse Current (IR) | 5 μA max at VR = 2.5 V - guarantees minimal leakage in standby mode, critical for battery-powered sensor nodes. |
| ESD Capability | ±30 kV per HBM (C = 150 pF, R = 330 Ω) - enables robust protection against human-body-model electrostatic discharge without external TVS staging. |
| Junction Temperature (Tj) | −55°C to +150°C - supports operation in extended-temperature industrial environments including motor control enclosures and automotive cabin modules. |
Pinout & Package
Package: Ultra Small Flat Lead (UFP), JEITA code PWSF0002ZA-A, Renesas code UFP / UFPV, SC-79 compatible, mass 0.0016 g. Dimensions: 1.70 × 1.20 × 0.60 mm (L × W × H), terminal pitch 0.70 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node during Zener operation; marked side of package; carries reverse-biased current during clamping. |
| 2 | Anode | Connected to lower-potential node (e.g., GND or signal return); unmarked side; forms the reference potential reference point. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small UFP package | 1.70 × 1.20 mm footprint enables placement adjacent to IC pins on dense MCU or FPGA boards without sacrificing routing space. |
| High ESD immunity | ±30 kV HBM rating eliminates need for secondary ESD protection in USB, UART, and GPIO interfaces operating below 10 mA. |
| Tight Zener voltage tolerance | ±2.1% (5.49–5.73 V) supports accurate 5 V system rail monitoring and ADC reference buffering without trimming. |
| Low dynamic impedance | 80 Ω max ensures minimal voltage shift under 1–10 mA load transients, improving stability in feedback loops and reference buffers. |
| Emboss taping reel packaging | Standard 8 mm tape-and-reel (PWSF0002ZA-A) supports automated SMT placement at high throughput with verified feed reliability. |
Applications
| USB Port ESD Protection | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines from contact ESD events in portable accessories. IC Role / Device Role / Timing Role: Two-terminal shunt clamp absorbing ±30 kV HBM surges before they reach the USB transceiver input stage. Use Value: Prevents latch-up or permanent damage to USB PHY without adding series resistance or degrading signal integrity at 480 Mbps. |
Use Scenario: Generating a clean, temperature-stable reset threshold for 5 V microcontrollers in industrial controllers. IC Role / Device Role / Timing Role: Precision Zener reference feeding an external comparator or integrated reset supervisor IC. Use Value: Ensures reliable brown-out detection at 4.75–5.25 V window with <±2% drift over −40°C to +85°C ambient. |
| Sensor Signal Conditioning | Low-Power IoT Node Reference |
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges, RTDs) in battery-operated instrumentation. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference source providing fixed bias current to sensor elements. Use Value: Reduces measurement error from supply ripple and thermal drift, enabling <0.1% full-scale accuracy in 16-bit ADC systems. |
Use Scenario: Supplying regulated 5.6 V bias to RF front-end components (e.g., LNA, crystal oscillator) in sub-GHz LoRaWAN nodes. IC Role / Device Role / Timing Role: Low-quiescent-current Zener stabilizer maintaining oscillator frequency stability during battery voltage sag. Use Value: Extends usable battery life by eliminating need for active LDO while preserving ±50 ppm frequency accuracy over 2.8–5.5 V input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C5V6 (Nexperia) | Same 5.6 V nominal, ±5% tolerance (5.32–5.88 V), 300 mW Pd, SOD-323 package (2.0 × 1.25 mm). | Larger footprint and looser voltage tolerance; better suited for general-purpose clamping where precision is secondary to power handling. | Select when higher surge energy absorption is required and board space allows 15% larger package. |
| MMSZ5232BS-7-F (Diodes Inc.) | 5.6 V nominal, ±5% tolerance, 350 mW Pd, SOD-123 package (3.7 × 1.6 mm), 110 Ω rd. | Higher power rating but double the footprint and 37.5% higher dynamic resistance; less suitable for high-frequency signal line protection. | Choose for cost-sensitive designs needing higher DC power margin and where layout density is not constrained. |
Compared with BZX584-C5V6 and MMSZ5232BS-7-F, the RKZ5.6B2KJ offers superior voltage precision (±2.1% vs. ±5%), smallest PCB area (1.70 × 1.20 mm), and lowest dynamic impedance (80 Ω), making it optimal for miniaturized, high-accuracy stabilization in space-limited embedded systems.
Availability
RKZ5.6B2KJ is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, sensor excitation, and low-power IoT reference applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for RKZ5.6B2KJ 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-KJ Series is part of Renesas' discrete protection portfolio, engineered specifically for compact, high-reliability voltage stabilization and ESD suppression in consumer electronics and industrial control subsystems.
FAQ
What is the Zener voltage tolerance of RKZ5.6B2KJ?
The RKZ5.6B2KJ has a guaranteed Zener voltage range of 5.49 V to 5.73 V at 5 mA test current, corresponding to a ±2.1% tolerance around the nominal 5.6 V value. This tight specification is confirmed in the Electrical Characteristics table of the official Renesas datasheet REJ03G1588-0100, making RKZ5.6B2KJ suitable for applications demanding high reference accuracy without calibration.
Does RKZ5.6B2KJ support automated SMT assembly?
Yes, RKZ5.6B2KJ is supplied in embossed tape-and-reel format per package code PWSF0002ZA-A, compatible with standard 8 mm feeder systems. Its UFP (SC-79) package features precise dimensional control and coplanar leads, enabling reliable pick-and-place placement at speeds exceeding 25,000 CPH. The RKZ5.6B2KJ tape orientation and pocket depth comply with EIA-481-D standards for zero-misfeed operation.
What is the maximum reverse current for RKZ5.6B2KJ at 2.5 V?
The maximum reverse current (IR) for RKZ5.6B2KJ is 5 μA when tested at VR = 2.5 V, as specified in the Electrical Characteristics table. This low leakage ensures minimal power loss in always-on monitoring circuits and preserves battery life in energy-harvesting sensor nodes where RKZ5.6B2KJ serves as a reference element.
Can RKZ5.6B2KJ be used for ESD protection on 3.3 V logic lines?
Yes, RKZ5.6B2KJ can protect 3.3 V logic lines when configured as a shunt clamp to ground, provided the signal swing remains below its 5.49 V minimum Zener voltage. Its ±30 kV HBM ESD rating exceeds IEC 61000-4-2 Level 4 requirements, and its low dynamic resistance (80 Ω) limits clamping voltage overshoot during fast transients-key for safeguarding RKZ5.6B2KJ-equipped GPIOs in industrial PLC modules.
What is the thermal derating behavior of RKZ5.6B2KJ above 25°C?
RKZ5.6B2KJ's power dissipation derates linearly from 150 mW at 25°C ambient to 0 mW at 150°C, as shown in Figure 3 of the datasheet. The derating slope is −1.25 mW/°C, meaning at 85°C ambient, its safe continuous power drops to 75 mW. This behavior must be accounted for in RKZ5.6B2KJ designs placed near heat sources like power MOSFETs or DC-DC converters in enclosed enclosures.
RKZ5.6B2KJ#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:
- -
RKZ5.6B2KJ#R1 FAQ
1.How can I place an order for RKZ5.6B2KJ#R1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ5.6B2KJ#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 RKZ5.6B2KJ#R1 reliable?
The price and inventory of RKZ5.6B2KJ#R1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ5.6B2KJ#R1 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ5.6B2KJ#R1 transactions.
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Once your RKZ5.6B2KJ#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 RKZ5.6B2KJ#R1?
For technical support, including RKZ5.6B2KJ#R1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ5.6B2KJ#R1 requirements.
6.How does Aetrix verify that RKZ5.6B2KJ#R1 is sourced from the original manufacturer or authorized distributors?
All RKZ5.6B2KJ#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 RKZ5.6B2KJ#R1 meets industry standards.
7.What is the process for return or replacement of RKZ5.6B2KJ#R1?
All RKZ5.6B2KJ#R1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ5.6B2KJ#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 RKZ5.6B2KJ#R1 part is unused and in its original packaging.
Return procedure for RKZ5.6B2KJ#R1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ5.6B2KJ#R1 Tags
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MM5Z5V1ST1G
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