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Nexperia USA Inc. MMBZ10VAT-QR
- Part No.:
- MMBZ10VAT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- -
- Datasheet:
-
MMBZ10VAT-QR.pdf
- Description:
- MMBZ10VAT-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,900
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Product details
Overview
MMBZ10VAT-Q from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed for simultaneous protection of two signal lines against IEC 61000-4-2 ESD events up to 30 kV (contact/air), with 6.5 V reverse stand-off voltage, ≤66 pF capacitance, and 18 V clamping voltage at 8 A peak pulse current - deployed in automotive ECUs and high-speed data interfaces.
For engineers reviewing the MMBZ10VAT-Q datasheet, MMBZ10VAT-Q pinout, MMBZ10VAT-Q application, or MMBZ10VAT-Q equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, automotive-grade AEC-Q101 qualification status, and real-world layout guidance for ESD-sensitive USB, CAN, and sensor signal lines.
Technical Context
This device implements a dual-cathode, single-common-anode topology enabling independent unidirectional clamping on two lines - each diode exhibits 9.5–10.5 V breakdown (IZ = 1 mA), <1 nA leakage at 6.5 V, and thermal resistance of 100 K/W junction-to-solder-point. Its low 55–66 pF capacitance at 0 V bias ensures minimal signal integrity impact on 100 Mbps+ interfaces.
The 8/20 µs surge response delivers 18 V clamping at 8 A, while IEC 61000-4-5 compliance supports transient immunity up to 20 W peak pulse power. Qualified per AEC-Q101, it operates across −55 °C to +150 °C ambient with 150 °C max junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | 30 kV contact & air discharge (IEC 61000-4-2) - enables robust front-end protection without external spark gaps |
| Reverse Stand-off Voltage | 6.5 V - sets maximum continuous line voltage before conduction begins, compatible with 5 V and 3.3 V logic rails |
| Clamping Voltage | 18 V typical at 8 A (8/20 µs) - limits transient energy delivered to downstream ICs during surge events |
| Diode Capacitance | 55–66 pF at 1 MHz, 0 V - preserves signal rise time in USB 2.0, HDMI, and I²C bus applications |
| Leakage Current | <1 nA at 6.5 V - prevents DC loading on high-impedance sensor or reference inputs |
| Breakdown Voltage | 9.5–10.5 V at 1 mA - defines precise turn-on threshold for overvoltage clamping |
| Package | SOT23 (TO-236AB) - 2.9 × 1.3 × 1.0 mm surface-mount footprint with 1.9 mm lead pitch for automated assembly |
Pinout & Package
SOT23 plastic package (TO-236AB), 3-terminal surface-mount device measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch and standard FR4-compatible thermal pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to first protected signal line; conducts when line voltage exceeds VRWM + Vf relative to common anode |
| 2 (K2) | Cathode of Diode 2 | Connects to second protected signal line; enables independent clamping path without cross-talk |
| 3 (CA) | Common Anode | Connected to system ground or low-impedance return path; serves as shared reference for both diodes |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode architecture | Enables compact two-line protection in single SOT23 footprint - eliminates need for discrete dual-diode arrays or PCB space for two separate devices |
| Low 55–66 pF capacitance | Maintains >300 MHz bandwidth on protected lines - critical for USB 2.0, MIPI D-PHY, and audio codec interfaces |
| AEC-Q101 qualification | Validated for automotive underhood and cabin environments including temperature cycling, humidity, and mechanical shock testing |
| 18 V clamping at 8 A | Reduces stress on downstream transceivers (e.g., CAN FD, LIN) by limiting transient overshoot below IC absolute maximum ratings |
| <1 nA reverse leakage | Prevents signal offset drift in precision analog front-ends such as automotive sensor amplifiers and battery monitoring circuits |
Applications
| Automotive ECU Signal Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L or LIN bus lines in engine control units exposed to load dump and ESD during service. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed within 2 mm of connector entry point to clamp fast-rising ESD pulses before reaching PHY IC. Use Value: Prevents latch-up or gate oxide damage in NXP TJA1043 or ST TLE6250 transceivers during 30 kV contact discharge events. |
Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports in infotainment head units against user-induced ESD. IC Role / Device Role / Timing Role: Dual-line ESD clamp with matched capacitance ensuring <10 ps skew between differential paths. Use Value: Maintains USB eye diagram integrity at 480 Mbps while meeting IEC 61000-4-2 Level 4 immunity requirements. |
| Industrial Sensor Interface Protection | Audio Codec Line Protection |
Use Scenario: Shielding RS-485 or analog sensor inputs (e.g., pressure, temperature) in factory automation controllers. IC Role / Device Role / Timing Role: Low-leakage bidirectional-capable protector used in common-anode configuration for ±15 V rail-tied sensors. Use Value: Eliminates false triggering in 24-bit ADCs (e.g., AD7768) caused by sub-nA leakage-induced offset errors. |
Use Scenario: Guarding I²S digital audio lines and analog headphone outputs in portable media players. IC Role / Device Role / Timing Role: High-frequency ESD shunt placed adjacent to codec IC (e.g., MAX98357A) to minimize trace inductance. Use Value: Suppresses pop/click artifacts during jack insertion by clamping transients before they couple into sensitive audio amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NZM3151BT1G | Higher 12 V VRWM, 22 V VCL at 8 A, 110 pF capacitance - less suitable for 3.3 V systems | Targeted at industrial 12 V sensor buses; not AEC-Q101 qualified | Select when higher stand-off voltage is required and capacitance tolerance >100 pF is acceptable |
| Vishay VEML6030X01 | Single-channel, 5.5 V VRWM, 15 pF capacitance - lacks dual-line integration | Designed for ambient light sensing; requires two devices for dual-line coverage | Choose only if ultra-low capacitance (<20 pF) is mandatory and board area permits duplication |
Compared with NZM3151BT1G and VEML6030X01, MMBZ10VAT-Q uniquely balances automotive qualification, dual-line integration, and sub-66 pF capacitance - making it optimal for space-constrained, safety-critical 5 V/3.3 V signal protection where AEC-Q101 compliance and layout simplicity are non-negotiable.
Availability
MMBZ10VAT-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 interface designs, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and full traceability.
Supply support for MMBZ10VAT-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 focused on essential efficiency, delivering high-performance logic, discrete, and MOSFET solutions optimized for reliability and manufacturability in automotive, industrial, and consumer markets.
MMBZ10VAT-Q belongs to Nexperia's Automotive ESD Protection Diode product line, engineered specifically for I/O-level transient suppression in AEC-Q101-compliant vehicle subsystems - emphasizing low capacitance, precise clamping, and zero-defect manufacturing.
FAQ
What is the maximum operating temperature for MMBZ10VAT-Q?
The MMBZ10VAT-Q supports ambient temperatures from −55 °C to +150 °C and a maximum junction temperature of 150 °C. Its thermal resistance from junction to solder point is 100 K/W, enabling reliable operation in under-hood automotive environments when mounted per recommended footprint guidelines.
Can MMBZ10VAT-Q protect bidirectional signal lines like I²C or UART?
Yes - configured with the common anode grounded, MMBZ10VAT-Q provides bidirectional ESD protection for a single line by leveraging its dual-cathode structure. Each cathode handles one polarity swing, achieving symmetrical clamping without requiring external components or polarity reversal.
How does the 6.5 V VRWM affect compatibility with 3.3 V systems?
The 6.5 V reverse stand-off voltage ensures no conduction occurs during normal 3.3 V operation, preserving signal integrity and preventing DC loading. It provides a 2.2× margin above the 3.3 V rail, allowing safe handling of noise spikes and minor overvoltages without premature clamping.
Is MMBZ10VAT-Q suitable for protecting high-speed differential pairs such as USB 2.0?
Yes - its 55–66 pF capacitance at 0 V bias and matched diode characteristics ensure minimal skew (<10 ps) and preserve signal integrity up to 480 Mbps. Layout best practices (e.g., symmetric trace routing, grounding beneath the SOT23 pad) are essential to maintain differential mode performance.
MMBZ10VAT-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- -
- Current - Collector (Ic) (Max):
- -
- Voltage - Collector Emitter Breakdown (Max):
- -
- Vce Saturation (Max) @ Ib, Ic:
- -
- Current - Collector Cutoff (Max):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- -
- Power - Max:
- -
- Frequency - Transition:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MMBZ10VAT-QR FAQ
1.How can I place an order for MMBZ10VAT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ10VAT-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 MMBZ10VAT-QR reliable?
The price and inventory of MMBZ10VAT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ10VAT-QR is usually 5 days.
3.What payment methods are accepted for MMBZ10VAT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ10VAT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ10VAT-QR?
MMBZ10VAT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ10VAT-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 MMBZ10VAT-QR?
For technical support, including MMBZ10VAT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ10VAT-QR requirements.
6.How does Aetrix verify that MMBZ10VAT-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ10VAT-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 MMBZ10VAT-QR meets industry standards.
7.What is the process for return or replacement of MMBZ10VAT-QR?
All MMBZ10VAT-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ10VAT-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 MMBZ10VAT-QR part is unused and in its original packaging.
Return procedure for MMBZ10VAT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ10VAT-QR Tags
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MMBT3904-TP
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MMBT2222A-7-F
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BC846BLT1G
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BC847B,215
Nexperia USA Inc.
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MMBT2222A-TP
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MMBTA06LT1G
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