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Nexperia USA Inc. MMBZ27VCL-QR
- Part No.:
- MMBZ27VCL-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ27VCL-QR.pdf
- Description:
- MMBZ27VCL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,526
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Product details
Overview
MMBZ27VCL-Q from Nexperia is a unidirectional double ESD protection diode in common-cathode SOT23 configuration, designed for transient overvoltage suppression on up to two signal lines. It delivers 22 V reverse standoff voltage, ≤60 pF capacitance, 30 kV contact ESD immunity (IEC 61000-4-2 Level 4), and 40 W peak pulse power-enabling robust protection in automotive ECUs and portable electronics interfaces.
For engineers reviewing the MMBZ27VCL-Q datasheet, MMBZ27VCL-Q pinout, MMBZ27VCL-Q application, or MMBZ27VCL-Q equivalent, this device supports dual-line unidirectional or single-line bidirectional ESD clamping with ultra-low leakage (≤5 nA) and AEC-Q101 qualification-critical for high-reliability signal line hardening in space-constrained SMD designs.
Technical Context
This dual-anode, common-cathode ESD diode operates as a voltage-clamping device: each anode–cathode path conducts during positive transients above 27 V breakdown, while blocking below 22 V standoff. Its 48–60 pF capacitance at 1 MHz ensures minimal signal distortion on high-speed lines like USB or I²C.
Clamping occurs at ≤38 V under 1 A 10/1000 µs surge (IEC 61643-321), with thermal resistance of 350 K/W (junction-to-ambient) on FR4 PCB. The device meets AEC-Q101 stress requirements and supports operation from –55 °C to +150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 22 V - maximum continuous operating voltage before clamping begins on protected lines |
| Breakdown Voltage | 25.65–28.35 V @ 1 mA - precise threshold triggering of ESD current shunting |
| Clamping Voltage | ≤38 V @ 1 A, 10/1000 µs - limits transient voltage seen by downstream ICs |
| Diode Capacitance | 48–60 pF @ 1 MHz, 0 V - preserves signal integrity on data lines up to ~100 MHz |
| Peak Pulse Power | 40 W - handles IEC 61000-4-2 and IEC 61643-321 surge events without failure |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds automotive and industrial immunity requirements |
| Leakage Current | ≤5 nA @ 22 V - avoids loading of high-impedance sensor or bias networks |
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 on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Connects to first signal line requiring unidirectional ESD protection |
| 2 (A2) | Anode of Diode 2 | Connects to second signal line; enables independent clamping per line |
| 3 (CC) | Common Cathode | Shared return path to ground or low-impedance reference; defines clamping polarity |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional dual-line protection | Simultaneous ESD suppression on two separate signal paths sharing one ground return |
| Bidirectional single-line mode | Configurable use across one differential or AC-coupled line via A1–A2 terminals |
| AEC-Q101 qualification | Validated for automotive ECU environments including temperature cycling, HBM, and surge stress |
| Ultra-low leakage | 0.1–5 nA reverse current ensures no measurable DC loading on precision analog or sensor inputs |
| Low-profile SMT footprint | SOT23 package enables placement within 2 mm of connectors-critical for effective ESD path length control |
Applications
| Automotive ECU Signal Protection | USB 2.0 Data Line Hardening |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus pins in engine control modules exposed to load dump and ESD events. IC Role / Device Role / Timing Role: Clamping transient voltages on bidirectional communication lines before they reach MCU I/O cells. Use Value: Prevents latch-up and gate oxide damage during 30 kV contact discharge while maintaining <60 pF signal loading. |
Use Scenario: Shielding D+ and D− lines of automotive infotainment USB ports from user-hand ESD. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent clamping of both data lines to common ground. Use Value: Enables full-speed USB 2.0 compliance (480 Mbps) with sub-38 V clamping and no signal integrity degradation. |
| Portable Audio Interface Protection | Industrial Sensor Signal Conditioning |
Use Scenario: Safeguarding headphone jack detection and audio codec I²S lines in Bluetooth earbuds. IC Role / Device Role / Timing Role: Unidirectional clamping on microphone bias and DAC output lines referenced to system ground. Use Value: Delivers 22 V standoff for battery-powered operation and ≤5 nA leakage to preserve battery life over years. |
Use Scenario: Protecting 4–20 mA current loop inputs and RS-485 transceiver pins in factory automation PLCs. IC Role / Device Role / Timing Role: Common-cathode architecture simplifies grounding scheme for multi-channel analog front-ends. Use Value: Withstands repeated 40 W surges per line and operates reliably from –40 °C to +125 °C ambient. |
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 SZMMBZ27VCLT1G | Same SOT23 package, 22 V VRWM, but 35 kV contact ESD rating and higher 45 pF max capacitance | Lacks AEC-Q101 qualification; rated for commercial, not automotive, temperature range | Select when cost sensitivity outweighs automotive qualification and lower capacitance is noncritical |
| Vishay SMAJ27AQ | DO-214AC package, 27 V VBR, 400 W PPPM-but single-diode, higher 100 pF capacitance, no dual-anode topology | Requires two devices for dual-line protection; unsuitable for space-constrained PCBs needing SOT23 | Choose only for legacy board redesigns where footprint change is acceptable and higher surge margin is required |
Compared with SZMMBZ27VCLT1G and SMAJ27AQ, the MMBZ27VCL-Q uniquely combines AEC-Q101 qualification, dual-line SOT23 integration, and ≤60 pF capacitance-making it the only option qualified for next-generation automotive infotainment and ADAS sensor interface protection.
Availability
MMBZ27VCL-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 and long-term lifecycle support.
Supply support for MMBZ27VCL-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.
The MMBZ27VCL-Q belongs to Nexperia's Automotive-Qualified ESD Protection Diode product line, engineered specifically for signal line hardening in harsh automotive and industrial environments where AEC-Q101 compliance and low capacitance are mandatory.
FAQ
What is the maximum clamping voltage of MMBZ27VCL-Q under IEC 61643-321 surge conditions?
The MMBZ27VCL-Q clamps to ≤38 V when subjected to a 1 A, 10/1000 µs exponential pulse per IEC 61643-321. This value is measured between either anode (pin 1 or 2) and the common cathode (pin 3) at 25 °C ambient, ensuring downstream ICs remain within safe voltage margins during surge events.
Can MMBZ27VCL-Q be used for bidirectional signal protection such as RS-485 or CAN?
Yes-by connecting the protected differential pair across pins 1 and 2 (A1 and A2) and referencing the common cathode (pin 3) to ground, the device provides bidirectional clamping. Its symmetrical breakdown (25.65–28.35 V) and 30 kV ESD rating make it suitable for transceivers requiring ±30 kV immunity on both polarities.
Is the 22 V reverse standoff voltage absolute maximum or typical operating limit?
The 22 V reverse standoff voltage (VRWM) is the guaranteed maximum DC or continuous AC voltage the device blocks without entering conduction. Operation above this level risks premature clamping; it is not a breakdown threshold but the upper bound of normal signal swing for reliable protection function.
How does the common-cathode configuration affect PCB layout versus discrete diodes?
The common-cathode SOT23 layout reduces ground path inductance by consolidating the return node into a single pad (pin 3), enabling shorter, lower-inductance routing from both protected lines to ground. This improves high-frequency ESD response versus two separate SOD-323 diodes, where individual cathode traces increase loop area and impedance.
MMBZ27VCL-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):
- 22V (Max)
- Voltage - Breakdown (Min):
- 25.65V
- Voltage - Clamping (Max) @ Ipp:
- 38V
- 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
MMBZ27VCL-QR FAQ
1.How can I place an order for MMBZ27VCL-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ27VCL-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 MMBZ27VCL-QR reliable?
The price and inventory of MMBZ27VCL-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ27VCL-QR is usually 5 days.
3.What payment methods are accepted for MMBZ27VCL-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ27VCL-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ27VCL-QR?
MMBZ27VCL-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ27VCL-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 MMBZ27VCL-QR?
For technical support, including MMBZ27VCL-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ27VCL-QR requirements.
6.How does Aetrix verify that MMBZ27VCL-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ27VCL-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 MMBZ27VCL-QR meets industry standards.
7.What is the process for return or replacement of MMBZ27VCL-QR?
All MMBZ27VCL-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ27VCL-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 MMBZ27VCL-QR part is unused and in its original packaging.
Return procedure for MMBZ27VCL-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ27VCL-QR 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
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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