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Nexperia USA Inc. MMBZ6V2AL-QR
- Part No.:
- MMBZ6V2AL-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ6V2AL-QR.pdf
- Description:
- MMBZ6V2AL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,445
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Product details
Overview
MMBZ6V2AL-Q from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed for transient overvoltage protection of two signal lines. It delivers 30 kV contact ESD immunity (IEC 61000-4-2 Level 4), 24 W peak pulse power, and ultra-low 175–230 pF capacitance - enabling high-speed data line protection in automotive ECUs and portable electronics.
For engineers reviewing the MMBZ6V2AL-Q datasheet, MMBZ6V2AL-Q pinout, MMBZ6V2AL-Q application, or MMBZ6V2AL-Q equivalent, key selection criteria include reverse standoff voltage (3 V), clamping voltage (8.7 V at 2.76 A), low leakage (200 nA), AEC-Q101 qualification, and common-anode dual-cathode topology for compact bidirectional or unidirectional line protection.
Technical Context
This device implements a common-anode dual-diode structure enabling either unidirectional protection of two independent signal lines (pins 1→3 and 2→3) or bidirectional protection of a single line (pins 1↔2). Its 6.2 V nominal breakdown voltage and 8.7 V clamping voltage at 2.76 A ensure robust transient suppression while maintaining signal integrity on low-voltage interfaces.
The SOT23 package supports high-density PCB layouts with minimal parasitic inductance, and its 420 K/W junction-to-solder-point thermal resistance enables reliable operation under repeated surge stress. AEC-Q101 qualification confirms suitability for automotive ambient temperature ranges (−55 °C to +150 °C) and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3 V - Maximum continuous working voltage before conduction; ensures no interference with 3.3 V or lower logic signaling. |
| Breakdown Voltage | 5.89–6.51 V @ 1 mA - Precise Zener-like turn-on threshold for controlled clamping onset. |
| Clamping Voltage | 8.7 V @ 2.76 A, 10/1000 µs - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| Diode Capacitance | 175–230 pF @ 1 MHz, 0 V - Low enough to avoid signal distortion on USB 2.0, I²C, and audio lines. |
| Peak Pulse Power | 24 W - Sustains high-energy transients per IEC 61643-321 without degradation. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - Meets stringent automotive and industrial ESD immunity requirements. |
| Leakage Current | 200 nA @ 3 V - Minimizes standby power loss and avoids false triggering in high-impedance sensor interfaces. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for automated placement and reflow soldering on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode) | First protected signal line cathode; connects to line 1 when used in unidirectional mode (anode grounded). |
| 2 | K2 (Cathode) | Second protected signal line cathode; enables simultaneous protection of two independent lines sharing one anode. |
| 3 | A (Common Anode) | Shared anode node; tied to ground or system reference to define clamping polarity and enable bidirectional operation between pins 1 and 2. |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode architecture | Enables flexible deployment: unidirectional protection of two lines (1→3, 2→3) or bidirectional protection of one line (1↔2). |
| Low 175–230 pF capacitance | Preserves signal rise/fall times on high-speed interfaces (e.g., USB D+/D−, HDMI CEC, I²C) without bandwidth limiting. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| 24 W peak pulse power rating | Handles repetitive surges per IEC 61643-321 without parameter drift or catastrophic failure. |
| 200 nA max reverse leakage | Prevents DC loading on precision analog inputs (e.g., ADC references, sensor bridges) and battery-powered circuits. |
Applications
| Automotive ECU Interfaces | USB 2.0 Data Lines |
|---|---|
|
Use Scenario: Protecting CAN FD or LIN bus signal pairs and sensor inputs in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at connector entry point; clamps ESD and fast transients before they reach MCU GPIO or transceiver ICs. Use Value: Maintains functional safety integrity by preventing latch-up or gate oxide damage in AEC-Q100 qualified microcontrollers during roadside ESD events. |
Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports in infotainment head units and docking stations. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp located adjacent to USB connector; provides sub-1 ns response to ±15 kV air discharge per IEC 61000-4-2. Use Value: Enables full-speed (480 Mbps) data transmission without jitter increase or bit error rate degradation due to parasitic capacitance. |
| Portable Audio Headphone Jacks | Industrial I²C Sensor Nodes |
|
Use Scenario: ESD protection for TRRS headphone jack signal paths (left/right/ground/mic) in smartphones and wearables. IC Role / Device Role / Timing Role: Dual-line unidirectional protector where each cathode serves a separate audio channel referenced to common ground. Use Value: Prevents pop/click artifacts and amplifier latch-up caused by user-handling ESD, while adding <230 pF per channel to preserve audio bandwidth. |
Use Scenario: Shielding SDA/SCL lines of temperature, humidity, and pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Bidirectional clamp across SDA–SCL pair (pins 1↔2) with common anode grounded, suppressing cross-talk induced transients. Use Value: Eliminates I²C bus lockups during maintenance ESD events without requiring pull-up resistor derating or signal timing margin adjustments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Quad-channel, 5.5 V breakdown, 12 pF typical capacitance, 12 W PPPM | Lower capacitance but reduced surge handling; suited for RF front-end protection, not high-energy automotive transients | Select when protecting >100 MHz analog/RF lines where capacitance dominates over surge robustness |
| Vishay VEML6030X01 | Not applicable - optical ambient light sensor, not an ESD diode | N/A - incorrect functional category | Exclude; misidentified part with incompatible function and no ESD protection capability |
Compared with MMBZ6V2AL-Q, NUP4105MR6T1G offers superior high-frequency signal fidelity but cannot sustain 24 W surges or meet AEC-Q101 automotive qualification; VEML6030X01 is unrelated and unsuitable for ESD protection roles.
Availability
MMBZ6V2AL-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 interface protection, and industrial I²C sensor nodes requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for MMBZ6V2AL-Q 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
Nexperia is a global semiconductor expert specializing in high-performance, high-reliability discrete, logic, and MOSFET devices, with leadership in automotive-grade components and ESD protection solutions.
This device belongs to Nexperia's Automotive ESD Protection Diode product line, engineered specifically for robust transient suppression in safety-critical vehicle subsystems while meeting strict board-space and signal-integrity constraints.
FAQ
What is the maximum operating temperature for MMBZ6V2AL-Q?
The MMBZ6V2AL-Q supports continuous operation up to +150 °C junction temperature and −55 °C to +150 °C ambient range. Its thermal resistance from junction to solder point is 420 K/W on standard FR4 PCBs, enabling reliable use in under-hood automotive environments without forced cooling.
Can MMBZ6V2AL-Q protect bidirectional data lines like RS-485?
Yes - when configured with pins 1 and 2 as differential pair terminals and pin 3 (common anode) grounded, it provides symmetrical bidirectional clamping. The 8.7 V clamping voltage at 2.76 A ensures RS-485 transceivers remain within safe operating area during 30 kV ESD events.
How does the common-anode configuration affect PCB layout?
The common-anode topology requires grounding pin 3 directly to the system ground plane with minimal trace length. Pins 1 and 2 must route separately to their respective protected lines, avoiding shared return paths to prevent coupling - critical for maintaining low-inductance ESD current diversion.
Is MMBZ6V2AL-Q compatible with lead-free reflow processes?
Yes - it is qualified for standard lead-free reflow profiles (J-STD-020), with a maximum peak temperature of 260 °C. The SOT23 package uses matte tin termination and meets IPC/JEDEC J-STD-020D.2 moisture sensitivity level (MSL) 1, eliminating bake requirements prior to assembly.
MMBZ6V2AL-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V (Max)
- Voltage - Breakdown (Min):
- 5.89V
- Voltage - Clamping (Max) @ Ipp:
- 8.7V
- Current - Peak Pulse (10/1000µs):
- 2.76A
- Power - Peak Pulse:
- 24W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 175pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ6V2AL-QR FAQ
1.How can I place an order for MMBZ6V2AL-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ6V2AL-QR 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 MMBZ6V2AL-QR reliable?
The price and inventory of MMBZ6V2AL-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ6V2AL-QR is usually 5 days.
3.What payment methods are accepted for MMBZ6V2AL-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ6V2AL-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ6V2AL-QR?
MMBZ6V2AL-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ6V2AL-QR 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 MMBZ6V2AL-QR?
For technical support, including MMBZ6V2AL-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ6V2AL-QR requirements.
6.How does Aetrix verify that MMBZ6V2AL-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ6V2AL-QR 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 MMBZ6V2AL-QR meets industry standards.
7.What is the process for return or replacement of MMBZ6V2AL-QR?
All MMBZ6V2AL-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ6V2AL-QR, 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 MMBZ6V2AL-QR part is unused and in its original packaging.
Return procedure for MMBZ6V2AL-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ6V2AL-QR Tags
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Diodes Incorporated
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Nexperia USA Inc.
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