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Nexperia USA Inc. MMBZ15VAT-QR
- Part No.:
- MMBZ15VAT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ15VAT-QR.pdf
- Description:
- MMBZ15VAT-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,870
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Product details
Overview
MMBZ15VAT-QR from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed for transient suppression on two signal lines. It delivers 30 kV IEC 61000-4-2 contact ESD immunity, 12 V reverse standoff voltage, 24 V clamping voltage at 6 A peak pulse current, and ultra-low 36–42 pF capacitance-ideal for high-speed USB 2.0, HDMI, and automotive infotainment interfaces.
For engineers reviewing the MMBZ15VAT-QR datasheet, MMBZ15VAT-QR pinout, MMBZ15VAT-QR application, or MMBZ15VAT-QR equivalent, key selection criteria include its dual-line unidirectional protection topology, AEC-Q101 qualification, sub-1 nA leakage at 12 V, 20 W peak pulse power rating, and compatibility with compact PCB layouts requiring minimal trace inductance.
Technical Context
This device implements a common-anode dual-diode structure enabling independent unidirectional clamping of two signal paths to ground, while supporting bidirectional protection of a single line via differential operation. Its low 36–42 pF capacitance ensures minimal signal integrity impact on data lines up to 480 Mbps.
The diode achieves robust transient response with 24 V typical clamping at 6 A (8/20 µs), 14.25–15.75 V breakdown voltage, and thermal resistance of 100 K/W junction-to-solder-point-enabling reliable operation in automotive ECUs where ambient temperatures reach 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | 30 kV per IEC 61000-4-2 contact discharge-ensures survivability against human-body-model ESD events in handheld and automotive environments. |
| Reverse Standoff Voltage | 12 V-defines maximum continuous operating voltage before conduction; matches standard 12 V automotive supply rails and logic I/O thresholds. |
| Clamping Voltage | 24 V typ. at 6 A (8/20 µs)-limits transient overvoltage seen by downstream ICs, protecting 3.3 V or 5 V interface receivers. |
| Diode Capacitance | 36–42 pF at 1 MHz, 0 V bias-low enough to avoid signal degradation in USB 2.0 and audio codec data lines. |
| Leakage Current | <1 nA at 12 V-prevents DC loading of high-impedance sensor or reference lines in precision analog circuits. |
| Peak Pulse Power | 20 W (10/1000 µs)-supports surge immunity per IEC 61000-4-5 Level 3 in industrial and automotive subsystems. |
| Breakdown Voltage | 14.25–15.75 V at 1 mA-provides controlled avalanche onset margin above 12 V VRWM for stable clamping behavior. |
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 reflow soldering with defined footprint per Nexperia sot023_fr.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to first protected signal line; conducts during positive transients to clamp voltage to ground. |
| 2 (K2) | Cathode of Diode 2 | Connects to second protected signal line; enables independent unidirectional protection of dual I/O paths. |
| 3 (CA) | Common Anode | Internally tied anode node connected to system ground; establishes shared reference for both clamping diodes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Rated for automotive under-hood and cabin applications with guaranteed reliability across −55 °C to +150 °C ambient. |
| Common-anode dual-diode topology | Enables space-efficient protection of two separate signal lines without discrete component duplication. |
| Ultra-low leakage (<1 nA) | Maintains signal integrity in high-impedance sensor front-ends and reference voltage networks. |
| Low 36–42 pF capacitance | Preserves rise/fall times and eye diagram margins in 480 Mbps USB 2.0 and stereo audio data links. |
| 24 V clamping at 6 A | Provides predictable voltage limiting for 3.3 V/5 V interface ICs without requiring external series impedance. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+ and D− lines from ESD events during cable insertion or handling in automotive head units and portable peripherals. IC Role / Device Role: Unidirectional clamping diode pair referenced to chassis ground, placed within 3 mm of USB connector. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while maintaining <5% signal attenuation at 480 MHz. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) and Consumer Electronics Control (CEC) lines in infotainment displays exposed to user-touch ESD. IC Role / Device Role: Dual-cathode ESD suppressor sharing common anode to ground, minimizing board area versus discrete solutions. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) without degrading 100 kHz DDC clock timing. |
| Automotive Body Control Module I/O | Audio Codec Interface Protection |
Use Scenario: Shielding LIN bus or sensor input pins (e.g., door lock switches, ambient light sensors) in body control modules subjected to 12 V battery rail transients. IC Role / Device Role: Common-anode dual-diode providing unidirectional protection for two 12 V-tolerant digital inputs. Use Value: Survives combined ESD + load-dump stress per ISO 7637-2 Pulse 1/2a while maintaining <1 µA standby current. |
Use Scenario: Guarding I²S or PCM digital audio data lines between SoC and audio codec in premium vehicle sound systems. IC Role / Device Role: Low-capacitance ESD clamp on serial data/clock lines operating at 1–6 MHz sampling rates. Use Value: Eliminates audible pop/click artifacts caused by transient-induced bit errors without adding jitter or skew. |
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 | Higher 60 pF capacitance; 14 V VRWM; 28 V VCL at 6 A; quad-channel in SOT-563 | Supports four lines but with reduced bandwidth; less suitable for >100 Mbps interfaces | Select when protecting ≥3 signals with shared ground and relaxed capacitance budget. |
| Vishay ESDBLE5.0D1W | Unidirectional single-channel; 15 pF capacitance; 5 V VRWM; 12 V VCL at 4 A | Optimized for 3.3 V logic only; requires two devices for dual-line protection | Prefer for space-constrained 3.3 V IoT sensor nodes where lowest possible Cd is critical. |
Compared with NUP4105MR6T1G and ESDBLE5.0D1W, MMBZ15VAT-QR uniquely balances dual-line integration, 12 V system compatibility, and 36–42 pF capacitance-making it optimal for automotive USB/HDMI interfaces where board area, voltage alignment, and signal fidelity are jointly constrained.
Availability
MMBZ15VAT-QR is available at Aetrix Electronics and suitable for automotive electronic control units, high-speed interface protection, and portable electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MMBZ15VAT-QR 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization for automotive, industrial, and consumer markets.
MMBZ15VAT-QR belongs to Nexperia's AEC-Q101-qualified ESD protection portfolio, engineered specifically for robust transient suppression in automotive signal paths and high-speed digital interfaces where low capacitance and precise clamping are mandatory.
FAQ
What is the maximum operating temperature for MMBZ15VAT-QR in automotive applications?
The MMBZ15VAT-QR is rated for junction temperatures up to 150 °C and ambient temperatures from −55 °C to +150 °C, fully compliant with AEC-Q101 requirements for under-hood and cabin ECU deployment. Its Rth(j-sp) of 100 K/W ensures effective heat dissipation when soldered to PCB copper pads per Nexperia's recommended footprint.
Can MMBZ15VAT-QR protect bidirectional data lines like I²C without signal distortion?
Yes-its common-anode configuration allows bidirectional protection of a single line by connecting the line between K1 and K2, with CA grounded. At 36–42 pF and <1 nA leakage, it introduces negligible capacitive loading or DC offset on 100 kHz–1 MHz I²C buses, preserving timing margins and pull-up functionality.
How does the 24 V clamping voltage affect compatibility with 3.3 V interface ICs?
The 24 V clamping voltage applies only during transient events (e.g., 6 A, 8/20 µs pulse); normal operation occurs below 12 V VRWM. Downstream 3.3 V ICs are protected because the clamping limits peak voltage seen at the protected node-provided layout minimizes trace inductance (<3 mm path length) to prevent overshoot beyond the clamp threshold.
Is MMBZ15VAT-QR compatible with lead-free reflow soldering processes?
Yes-MMBZ15VAT-QR is qualified for lead-free reflow per JEDEC J-STD-020, with a maximum peak temperature of 260 °C. Nexperia provides dedicated reflow footprints (sot023_fr) and thermal profiles; its SOT23 package exhibits no delamination or parametric shift after three reflow cycles.
MMBZ15VAT-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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 14.25V
- Voltage - Clamping (Max) @ Ipp:
- 24V (Typ)
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 20W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 36pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ15VAT-QR FAQ
1.How can I place an order for MMBZ15VAT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ15VAT-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 MMBZ15VAT-QR reliable?
The price and inventory of MMBZ15VAT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ15VAT-QR is usually 5 days.
3.What payment methods are accepted for MMBZ15VAT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ15VAT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ15VAT-QR?
MMBZ15VAT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ15VAT-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 MMBZ15VAT-QR?
For technical support, including MMBZ15VAT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ15VAT-QR requirements.
6.How does Aetrix verify that MMBZ15VAT-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ15VAT-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 MMBZ15VAT-QR meets industry standards.
7.What is the process for return or replacement of MMBZ15VAT-QR?
All MMBZ15VAT-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ15VAT-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 MMBZ15VAT-QR part is unused and in its original packaging.
Return procedure for MMBZ15VAT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ15VAT-QR Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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