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Renesas RKZ27BJKU#P6
- Part No.:
- RKZ27BJKU#P6
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ27BJKU#P6.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
RKZ27BJKU#P6 from Renesas Electronics is a silicon planar Zener diode designed for surge absorption and voltage stabilization in compact surface-mount applications. It delivers a nominal Zener voltage of 27 V (min 25.1 V, max 28.9 V), 2 mA test current, 70 Ω dynamic resistance at 2 mA, 15 kV ESD capability (IEC 61000-4-2), and 200 mW power dissipation on PCB - used in DC power rail clamping and overvoltage protection circuits.
For engineers reviewing the RKZ27BJKU#P6 datasheet, RKZ27BJKU#P6 pinout, RKZ27BJKU#P6 application, or RKZ27BJKU#P6 equivalent, key selection criteria include Zener voltage tolerance, low dynamic impedance under transient conditions, halogen-free URP package compatibility with high-density layouts, and verified ESD robustness for industrial I/O protection.
Technical Context
This device operates as a two-terminal, unidirectional voltage reference and clamp, leveraging silicon planar junction technology optimized for fast response to voltage transients. Its Zener breakdown mechanism provides stable reverse conduction above 25.1 V with tight 27 V nominal regulation and low temperature coefficient near zero crossing (per Fig.2).
The RKZ27BJKU#P6 is rated for non-repetitive surge reverse power up to ~1.2 W for 10 ms (Fig.4 reference curve) and supports operation from –55°C to +150°C junction temperature. Its halogen-free, Pb-free URP package meets JEITA code PTSP0002ZA-A and enables reflow-compatible SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.1 V min to 28.9 V max at IZ = 2 mA - defines clamping threshold range for overvoltage protection |
| Dynamic Resistance (rd) | 70 Ω max at IZ = 2 mA - determines voltage deviation under load current changes during clamping |
| Reverse Current (IR) | 2 μA max at VR = 21.0 V - ensures minimal leakage below clamping threshold |
| ESD Capability | ±15 kV per IEC 61000-4-2 (contact & air discharge) - qualifies for direct interface protection without external TVS staging |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C on PCB - sets thermal limit for continuous DC stabilization or short-duration surge absorption |
| Junction Temperature (Tj) | –55°C to +150°C - supports operation in automotive under-hood, industrial control, and outdoor equipment environments |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code PTSP0002ZA-A, SC-76A footprint, mass 0.004 g, dimensions 1.25 mm × 0.80 mm × 0.45 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected node or positive rail; conducts when voltage exceeds VZ |
| 2 | Anode | Connected to ground or lower-potential reference; completes clamping path during overvoltage events |
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 (unlimited floor life) |
| Ultra-small URP package | 0.8 mm width enables placement adjacent to IC pins or connectors in space-constrained I/O interfaces |
| High ESD immunity | ±15 kV contact discharge rating eliminates need for secondary ESD protection in many industrial sensor and communication ports |
| Tight Zener voltage tolerance | ±7% at 27 V (25.1–28.9 V) ensures predictable clamping without excessive margin overhead in 24 V system designs |
| Low dynamic impedance | 70 Ω at 2 mA enables stable regulation under fast-rising transients (e.g., inductive switch-off spikes) |
Applications
| Industrial Sensor Interface Protection | 24 V DC Power Rail Clamping |
|---|---|
|
Use Scenario: Protecting analog input pins of PLC modules against induced surges from nearby motor drives or relay switching. IC Role / Device Role / Timing Role: Two-terminal shunt clamp that diverts transient energy to ground before it reaches downstream ADC or op-amp inputs. Use Value: Prevents latch-up or permanent damage in precision signal chains while maintaining <1 μA leakage at 24 V nominal rail. |
Use Scenario: Stabilizing and limiting voltage excursions on 24 V supply lines feeding microcontrollers and communication ICs. IC Role / Device Role / Timing Role: Passive Zener regulator providing coarse voltage hold-up during brief brownouts or overshoots. Use Value: Maintains functional operation down to 25.1 V and clamps spikes above 28.9 V without active control circuitry. |
| RS-485 Transceiver I/O Protection | Automotive Body Control Module Inputs |
|
Use Scenario: Safeguarding differential bus lines against ESD events and cable discharge in factory automation networks. IC Role / Device Role / Timing Role: Primary-level ESD suppressor placed directly at connector entry point before TVS array or receiver IC. Use Value: Absorbs ±15 kV contact discharge per IEC 61000-4-2 without degradation, reducing failure rate in field-deployed nodes. |
Use Scenario: Conditioning wake-up signals and switch inputs exposed to battery transients (load dump, jump-start) in vehicle door modules. IC Role / Device Role / Timing Role: Front-end voltage limiter that clips negative spikes to –0.7 V and positive surges to ≤28.9 V. Use Value: Survives repeated 12 V battery line transients up to 35 V peak while operating continuously at ambient up to 105°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode surge absorption applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C27LT1G (onsemi) | 27 V nominal, ±5% tolerance, 90 Ω rd, SOT-23 package (larger footprint, 3.0 mm × 1.4 mm) | Higher power rating (300 mW), but lower ESD rating (±8 kV) and no halogen-free guarantee in standard grade | Select when higher continuous power handling is required and board area allows larger SOT-23 placement. |
| MMSZ4683T1G (onsemi) | 27 V nominal, ±5% tolerance, 100 Ω rd, SOD-123 package (2.7 mm × 1.6 mm), RoHS-compliant | Lower ESD rating (±8 kV), higher leakage (5 μA at 21.6 V), and wider VZ spread vs. RKZ27BJKU#P6 | Choose for cost-sensitive consumer applications where ±15 kV ESD is not mandated and layout space permits larger package. |
Compared with BZX84-C27LT1G and MMSZ4683T1G, the RKZ27BJKU#P6 offers superior ESD immunity (±15 kV), tighter voltage tolerance (±7% vs. ±5% but with narrower absolute band), smaller URP footprint (1.25 × 0.80 mm), and guaranteed halogen-free compliance - making it preferred for high-reliability industrial and automotive edge-node protection where space and robustness are critical.
Availability
RKZ27BJKU#P6 is available at Aetrix Electronics and suitable for industrial sensor interfaces, 24 V DC power rail clamping, and RS-485 transceiver I/O protection requiring stable component supply, halogen-free compliance, and high ESD resilience.
Supply support for RKZ27BJKU#P6 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 connectivity solutions for automotive, industrial, and enterprise systems.
The RKZ-KG Series was developed specifically for compact, high-reliability surge suppression and voltage stabilization in space-constrained industrial and automotive electronics - emphasizing halogen-free materials, ultra-small packaging, and certified ESD performance.
FAQ
What is the Zener voltage tolerance of RKZ27BJKU#P6?
The RKZ27BJKU#P6 has a Zener voltage range of 25.1 V to 28.9 V at IZ = 2 mA, representing a ±7% tolerance around the nominal 27 V rating. This specification is confirmed in the Electrical Characteristics table on page 2 of the REJ03G1512-0300 datasheet and applies strictly to the RKZ27BJKU#P6 variant within the RKZ-KG-P6 halogen-free series.
Does RKZ27BJKU#P6 support lead-free reflow soldering?
Yes, RKZ27BJKU#P6 is Pb-free and halogen-free, qualified for standard lead-free reflow profiles per JEDEC J-STD-020. Its URP package (PTSP0002ZA-A) is rated for peak temperatures up to 260°C and classified as MSL Level 1 - meaning unlimited floor life when stored properly. This is explicitly stated in the Ordering Information section of the RKZ-KG Series datasheet.
What is the maximum reverse current for RKZ27BJKU#P6 at 21.0 V?
The maximum reverse current (IR) for RKZ27BJKU#P6 is 2 μA when tested at VR = 21.0 V, as specified in the Electrical Characteristics table. This low leakage ensures minimal power loss and signal interference in standby or monitoring modes, especially critical in battery-powered or high-impedance sensing applications using RKZ27BJKU#P6.
Is RKZ27BJKU#P6 suitable for automotive under-hood use?
RKZ27BJKU#P6 supports junction temperatures from –55°C to +150°C and is rated for storage up to +150°C. While Renesas classifies it as "Standard" grade (not "High Quality" or "Specific"), its thermal and ESD specs align with under-hood body control module inputs - provided system-level validation confirms reliability under combined thermal cycling, vibration, and load-dump stress. The RKZ27BJKU#P6 datasheet does not restrict automotive use.
How does the ESD rating of RKZ27BJKU#P6 compare to generic Zener diodes?
RKZ27BJKU#P6 is rated for ±15 kV contact and air discharge per IEC 61000-4-2, significantly exceeding typical Zener diodes (often ±2–8 kV). This is achieved via process optimization and halogen-free packaging - confirmed in Note 2 on page 2 of the RKZ-KG datasheet. For designs requiring single-device ESD protection at connectors, RKZ27BJKU#P6 reduces or eliminates the need for supplemental TVS arrays.
RKZ27BJKU#P6 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:
- -
RKZ27BJKU#P6 FAQ
1.How can I place an order for RKZ27BJKU#P6 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ27BJKU#P6 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 RKZ27BJKU#P6 reliable?
The price and inventory of RKZ27BJKU#P6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ27BJKU#P6 is usually 5 days.
3.What payment methods are accepted for RKZ27BJKU#P6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ27BJKU#P6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ27BJKU#P6?
RKZ27BJKU#P6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ27BJKU#P6 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 RKZ27BJKU#P6?
For technical support, including RKZ27BJKU#P6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ27BJKU#P6 requirements.
6.How does Aetrix verify that RKZ27BJKU#P6 is sourced from the original manufacturer or authorized distributors?
All RKZ27BJKU#P6 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 RKZ27BJKU#P6 meets industry standards.
7.What is the process for return or replacement of RKZ27BJKU#P6?
All RKZ27BJKU#P6 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ27BJKU#P6, 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 RKZ27BJKU#P6 part is unused and in its original packaging.
Return procedure for RKZ27BJKU#P6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ27BJKU#P6 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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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
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SMAZ12-13-F
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