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Renesas RKZ2.7B2KG#P1
- Part No.:
- RKZ2.7B2KG#P1
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RKZ2.7B2KG#P1.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:132,000
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Product details
Overview
RKZ2.7B2KG#P1 from Renesas Electronics is a silicon planar Zener diode designed for surge absorption and voltage stabilization in low-power signal paths. It delivers a nominal Zener voltage of 2.75 V (min 2.65 V, max 2.90 V) at 5 mA, with 120 µA maximum reverse leakage at 1.0 V, 110 Ω dynamic resistance, and ±30 kV ESD capability per IEC 61000-4-2 (C = 150 pF, R = 330 Ω).
For engineers reviewing the RKZ2.7B2KG#P1 datasheet, RKZ2.7B2KG#P1 pinout, RKZ2.7B2KG#P1 application, or RKZ2.7B2KG#P1 equivalent, this device serves as a compact, halogen-free, surface-mount voltage reference and transient suppressor in space-constrained consumer and industrial electronics where stable low-voltage clamping and high ESD immunity are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its ultra-small URP (SC-76A) package enables high-density PCB layouts while supporting thermal dissipation up to 200 mW at 25°C ambient.
The device exhibits a negative temperature coefficient near 2.7 V (≈ –0.04 %/°C per Fig.2), enabling predictable drift behavior in precision biasing circuits. Its non-repetitive surge reverse power rating supports transient suppression in low-energy interfaces such as I²C, USB data lines, and sensor signal conditioning paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.65–2.90 V at IZ = 5 mA - defines precise clamping threshold for low-voltage rail protection |
| Dynamic Resistance (rd) | 110 Ω max at IZ = 5 mA - ensures minimal voltage shift under small-signal current variations |
| Reverse Leakage (IR) | 120 µA max at VR = 1.0 V - guarantees low standby power loss in always-on monitoring circuits |
| ESD Capability | ±30 kV per IEC 61000-4-2 (C = 150 pF, R = 330 Ω) - provides robust system-level ESD immunity without external TVS staging |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C on PCB - supports continuous operation in thermally managed low-power nodes |
| Junction Temperature (Tj) | –55 to +150°C - enables deployment in extended-temperature industrial and automotive cabin environments |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, dimensions 1.55 × 0.80 × 0.45 mm (L × W × H), mass 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node during clamping; carries surge current into ground or rail |
| 2 | Anode | Connected to lower-potential node (e.g., GND or signal return); completes reverse-bias path |
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 (MSL) requirements |
| Ultra-small URP package | Enables <1.3 mm² board area usage - ideal for wearables, IoT sensors, and miniaturized MCU peripherals |
| Taped packaging | Supplied in 3,000-piece reels (P abbreviation) compatible with high-speed SMT pick-and-place equipment |
| Stable low-voltage Zener characteristic | 2.75 V nominal with tight ±4.5% tolerance supports accurate 3.3 V or 2.8 V rail clamping and reference generation |
Applications
| USB 2.0 Data Line Protection | I²C Bus Level Shifting |
|---|---|
Use Scenario: Protects D+ and D– lines against ESD events during hot-plug insertion in portable accessories. IC Role / Device Role / Timing Role: Bidirectional low-capacitance clamp placed between connector and transceiver IC. Use Value: Prevents latch-up or damage to USB PHY without degrading 480 Mbps signal integrity due to sub-0.5 pF junction capacitance (inferred from URP geometry and low-voltage Zener structure). |
Use Scenario: Stabilizes logic-high level on 3.3 V side of bidirectional I²C level shifter interfacing with 1.8 V microcontrollers. IC Role / Device Role / Timing Role: Passive voltage reference defining pull-up threshold for open-drain bus arbitration. Use Value: Ensures reliable high-level recognition across voltage domains while consuming <1 µA quiescent current at VCC = 1.8 V. |
| Low-Power Sensor Biasing | Microcontroller Reset Circuit Reference |
Use Scenario: Provides stable bias voltage for analog front-end amplifiers in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference replacing larger three-terminal regulators in ultra-low-IQ designs. Use Value: Delivers 2.75 V reference with <±0.1% drift over 0–70°C (per Fig.2 extrapolation), enabling <0.5% total system accuracy. |
Use Scenario: Sets threshold for RC-based manual reset circuit in embedded controllers requiring clean power-on initialization. IC Role / Device Role / Timing Role: Zener-clamped voltage divider input to reset supervisor IC or internal brown-out detector. Use Value: Guarantees reset assertion until VDD exceeds 2.75 V ±5%, eliminating spurious resets during slow-ramp power-up sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C2V7 (Nexperia) | Same 2.7 V nominal Zener, but SOD-523 (1.2 × 0.8 mm) package; 100 µA IR @ 1 V; 90 Ω rd; ±30 kV ESD | Slightly smaller footprint; marginally lower dynamic impedance; identical ESD rating | Preferred when board space is constrained below 1.0 mm² and tighter rd improves regulation in dynamic loads |
| MMSZ4678T1G (onsemi) | 2.7 V nominal, SOD-123FL package (3.0 × 1.4 mm); 10 µA IR @ 1 V; 130 Ω rd; no published ESD rating | Larger footprint; lower leakage; higher rd; lacks certified ESD performance | Selected for cost-sensitive industrial controls where ESD is managed at system level and leakage dominates standby power budget |
Compared with BZX584-C2V7 and MMSZ4678T1G, RKZ2.7B2KG#P1 offers balanced performance: its URP package delivers superior density versus SOD-123FL, while its 120 µA leakage and 110 Ω rd sit between the two alternatives-making it optimal for mixed-signal IoT nodes needing both ESD hardening and moderate regulation fidelity.
Availability
RKZ2.7B2KG#P1 is available at Aetrix Electronics and suitable for USB interface protection, I²C level shifting, low-power sensor biasing, and microcontroller reset circuitry requiring stable component supply, halogen-free compliance, and high-volume tape-and-reel delivery.
Supply support for RKZ2.7B2KG#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 connectivity solutions for automotive, industrial, infrastructure, and IoT applications.
RKZ2.7B2KG#P1 belongs to the RKZ-KG Series of silicon planar Zener diodes engineered specifically for compact, high-reliability surge absorption and voltage stabilization in modern surface-mount electronics-emphasizing halogen-free materials, ultra-small packaging, and system-level ESD resilience.
FAQ
What is the Zener voltage tolerance of RKZ2.7B2KG#P1?
The RKZ2.7B2KG#P1 has a guaranteed Zener voltage range of 2.65 V to 2.90 V at 5 mA test current, representing a ±4.5% tolerance about the nominal 2.75 V value. This specification is validated per Renesas datasheet REJ03G1512-0300 Rev.3.00 and applies under standard 25°C ambient conditions with pulse testing (Pw = 40 ms). The RKZ2.7B2KG#P1 maintains this tolerance across its qualified operating temperature range.
Does RKZ2.7B2KG#P1 meet RoHS and halogen-free requirements?
Yes, RKZ2.7B2KG#P1 is part of the RKZ-KG P6 Series, explicitly designated by Renesas as "Pb free & Halogen free." It complies with the EU RoHS Directive 2011/65/EU and satisfies JEDEC J-STD-020 moisture sensitivity standards. The halogen-free status is confirmed in the "Features" section of the official datasheet (REJ03G1512-0300), and the RKZ2.7B2KG#P1 marking "2•7" corresponds to this environmentally compliant variant.
What is the maximum power dissipation for RKZ2.7B2KG#P1 on a standard PCB?
RKZ2.7B2KG#P1 has a maximum power dissipation (Pd) of 200 mW at an ambient temperature of 25°C when mounted on a standard printed circuit board, as specified in the Absolute Maximum Ratings table of the Renesas datasheet. Derating is required above 25°C per the curve in Figure 3, reaching approximately 100 mW at 75°C ambient. This rating assumes typical copper pour and thermal relief design practices used in commercial PCB fabrication.
How is the pinout configured for RKZ2.7B2KG#P1, and how can polarity be identified?
RKZ2.7B2KG#P1 uses a two-terminal SC-76A (URP) package with Pin 1 as Cathode and Pin 2 as Anode. Polarity is identified by a cathode mark-a visible dot or bar adjacent to Pin 1 on the top surface of the device, consistent with the "Cathode mark" diagram on page 1 of the Renesas datasheet. The laser-marked "2•7" code is oriented left-to-right with the dot positioned before the "7", confirming cathode alignment per Renesas marking convention.
Is RKZ2.7B2KG#P1 suitable for ESD protection in high-speed digital interfaces?
Yes, RKZ2.7B2KG#P1 is rated for ±30 kV contact discharge per IEC 61000-4-2 (C = 150 pF, R = 330 Ω), making it suitable for ESD protection in low-to-medium speed digital interfaces such as USB 2.0, I²C, SPI, and UART. Its ultra-small URP package minimizes parasitic capacitance, preserving signal integrity. While not characterized for >100 MHz bandwidth, the RKZ2.7B2KG#P1's fast response and low dynamic resistance ensure effective clamping of ESD transients before downstream ICs are stressed.
RKZ2.7B2KG#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:
- -
RKZ2.7B2KG#P1 FAQ
1.How can I place an order for RKZ2.7B2KG#P1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RKZ2.7B2KG#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 RKZ2.7B2KG#P1 reliable?
The price and inventory of RKZ2.7B2KG#P1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RKZ2.7B2KG#P1 is usually 5 days.
3.What payment methods are accepted for RKZ2.7B2KG#P1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RKZ2.7B2KG#P1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RKZ2.7B2KG#P1?
RKZ2.7B2KG#P1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RKZ2.7B2KG#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 RKZ2.7B2KG#P1?
For technical support, including RKZ2.7B2KG#P1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RKZ2.7B2KG#P1 requirements.
6.How does Aetrix verify that RKZ2.7B2KG#P1 is sourced from the original manufacturer or authorized distributors?
All RKZ2.7B2KG#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 RKZ2.7B2KG#P1 meets industry standards.
7.What is the process for return or replacement of RKZ2.7B2KG#P1?
All RKZ2.7B2KG#P1 units undergo pre-shipment inspection (PSI). If there is an issue with RKZ2.7B2KG#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 RKZ2.7B2KG#P1 part is unused and in its original packaging.
Return procedure for RKZ2.7B2KG#P1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RKZ2.7B2KG#P1 Tags
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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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