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Nexperia USA Inc. MMBZ27VAL-QVL
- Part No.:
- MMBZ27VAL-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ27VAL-QVL.pdf
- Description:
- MMBZ27VAL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,865
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Product details
Overview
MMBZ27VAL-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), 40 W peak pulse power, and ≤60 pF capacitance - enabling high-speed data line protection in automotive ECUs and portable electronics.
For engineers reviewing the MMBZ27VAL-Q datasheet, MMBZ27VAL-Q pinout, MMBZ27VAL-Q application, or MMBZ27VAL-Q equivalent, key selection criteria include reverse standoff voltage (22 V), clamping voltage (40 V at 1 A), ultra-low leakage (5 nA), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device implements a dual-cathode, single-common-anode topology to support either unidirectional protection of two independent signal lines (e.g., USB D+/D−) or bidirectional protection of one line via differential operation. Its junction design achieves low capacitance without sacrificing ESD robustness.
Rated for 150 °C junction temperature and qualified per AEC-Q101, it operates across −55 °C to +150 °C ambient with thermal resistance Rth(j-a) = 460 K/W in free air. Clamping occurs at 40 V under 10/1000 µs surge (IEC 61643-321), with breakdown at 27 V ±5%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 22 V - maximum continuous operating voltage before conduction begins on protected lines |
| Breakdown Voltage | 27 V (typical), 25.65–28.35 V - precise threshold triggering clamping during transients |
| Clamping Voltage | 40 V at 1 A (10/1000 µs) - limits voltage seen by downstream ICs during surge events |
| Diode Capacitance | 48–60 pF at 1 MHz, 0 V - preserves signal integrity on high-speed interfaces like HDMI or USB 2.0 |
| Peak Pulse Power | 40 W - sustains IEC 61000-4-2 and IEC 61643-321 compliant surges without degradation |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds automotive and industrial immunity requirements |
| Leakage Current | 0.1–5 nA at 22 V - minimizes DC loading on sensitive analog or RF signal paths |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body, optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to first protected signal line; conducts during negative transients relative to common anode |
| 2 | Cathode (Diode 2) | Connects to second protected signal line; enables independent unidirectional protection path |
| 3 | Common Anode | Reference node tied to system ground or local return plane; defines polarity reference for both diodes |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode architecture | Enables compact PCB layout for two-line protection without discrete component duplication |
| AEC-Q101 qualification | Validated for automotive ECU use with full stress testing across temperature, humidity, and lifetime cycles |
| 48 pF typical capacitance | Supports >100 MHz signal bandwidth while maintaining low insertion loss on high-speed buses |
| Ultra-low 5 nA max leakage | Prevents signal offset or battery drain in always-on sensor or communication circuits |
| 40 W peak pulse rating | Withstands repeated 10/1000 µs surges up to 1 A without parameter shift or failure |
Applications
| Automotive ECU Interfaces | USB 2.0 Data Lines |
|---|---|
|
Use Scenario: Protection of CAN FD or LIN bus signal pairs in engine control modules exposed to load dump and ESD. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at connector entry point to shunt ESD and fast transients to chassis ground. Use Value: Maintains 22 V standoff while clamping to 40 V, preserving MCU I/O tolerance and preventing latch-up in ASIL-B systems. |
Use Scenario: ESD safeguard for D+ and D− lines in smartphone docking stations and automotive infotainment USB ports. IC Role / Device Role / Timing Role: Low-capacitance clamp ensuring <1% signal distortion at 480 Mbps while meeting IEC 61000-4-2 Level 4. Use Value: 48 pF capacitance avoids eye diagram closure; 30 kV contact rating exceeds USB-IF compliance thresholds. |
| Audio Line Inputs | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of analog audio inputs (e.g., microphone bias lines) in car audio head units and portable speakers. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to local ground, blocking negative transients while passing DC bias. Use Value: 5 nA leakage prevents DC offset drift; 22 V standoff accommodates 18 V bias rails without false triggering. |
Use Scenario: Safeguarding 4–20 mA current loop inputs or thermocouple amplifier front-ends in PLC analog I/O modules. IC Role / Device Role / Timing Role: Dual-line protector for differential sensor outputs, suppressing common-mode surges induced by nearby motor switching. Use Value: Common-anode configuration allows shared ground return, reducing PCB trace inductance and improving clamping response time. |
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 SZMMBZ27VALT1G | Same SOT23 footprint and 22 V VRWM, but rated for 25 kV contact ESD (IEC 61000-4-2 Level 3), not Level 4 | Lacks AEC-Q101 qualification; suitable for consumer-grade USB ports but not automotive ECUs | Select when cost sensitivity outweighs automotive qualification and 30 kV ESD margin |
| Vishay ESDD3V3MUTAG | Lower 3.3 V VRWM and 12 pF capacitance; designed for 3.3 V logic, not 22 V signal lines | Not interchangeable - intended for low-voltage digital I/O, not mid-voltage analog/data lines | Choose only for 3.3 V rail protection; incompatible with MMBZ27VAL-Q's 22 V standoff requirement |
Compared with SZMMBZ27VALT1G and ESDD3V3MUTAG, MMBZ27VAL-Q uniquely combines AEC-Q101 qualification, 30 kV ESD rating, and 22 V standoff in a dual-line SOT23 package - making it the sole option for automotive-grade protection of 12–24 V signal paths.
Availability
MMBZ27VAL-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 interface protection, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MMBZ27VAL-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 high-volume, high-reliability discrete and logic devices, with leadership in ESD protection, MOSFETs, and bipolar transistors.
This device belongs to Nexperia's Automotive-Qualified ESD Protection Diode product line, engineered specifically for robust transient suppression in harsh automotive environments while maintaining signal fidelity on high-speed and analog interfaces.
FAQ
What is the maximum operating temperature for MMBZ27VAL-Q?
The MMBZ27VAL-Q supports continuous operation up to 150 °C junction temperature and −55 °C to +150 °C ambient temperature. Its thermal resistance from junction to ambient is 460 K/W in free air, and derating is required above 25 °C ambient per the datasheet's power dissipation curves.
Can MMBZ27VAL-Q protect bidirectional signals like RS-485?
Yes - when used with the common anode grounded, pins 1 and 2 provide symmetrical clamping for positive and negative transients on a single line, enabling bidirectional protection. However, its 22 V standoff makes it best suited for lines operating below that voltage, not full-differential RS-485 buses.
How does the common-anode configuration affect PCB layout?
The common-anode (pin 3) must connect directly to a low-inductance ground plane near the protected connector. Pins 1 and 2 route separately to their respective signal lines, minimizing shared trace length to reduce coupling. Layout guidelines require placement within 3 mm of the I/O connector and avoidance of parallel routing with unprotected traces.
Is MMBZ27VAL-Q compatible with lead-free reflow processes?
Yes - it is qualified for standard lead-free reflow profiles per J-STD-020, with a maximum peak temperature of 260 °C. The SOT23 package uses matte tin plating and meets IPC/JEDEC standards for moisture sensitivity level (MSL) 1, allowing unlimited floor life at ≤30 °C/60% RH.
MMBZ27VAL-QVL 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):
- 22V (Max)
- Voltage - Breakdown (Min):
- 25.65V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 48pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ27VAL-QVL FAQ
1.How can I place an order for MMBZ27VAL-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ27VAL-QVL 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 MMBZ27VAL-QVL reliable?
The price and inventory of MMBZ27VAL-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ27VAL-QVL is usually 5 days.
3.What payment methods are accepted for MMBZ27VAL-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ27VAL-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ27VAL-QVL?
MMBZ27VAL-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ27VAL-QVL 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 MMBZ27VAL-QVL?
For technical support, including MMBZ27VAL-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ27VAL-QVL requirements.
6.How does Aetrix verify that MMBZ27VAL-QVL is sourced from the original manufacturer or authorized distributors?
All MMBZ27VAL-QVL 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 MMBZ27VAL-QVL meets industry standards.
7.What is the process for return or replacement of MMBZ27VAL-QVL?
All MMBZ27VAL-QVL units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ27VAL-QVL, 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 MMBZ27VAL-QVL part is unused and in its original packaging.
Return procedure for MMBZ27VAL-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ27VAL-QVL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
-
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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