Nexperia USA Inc. MMBZ27VAL,215
- Part No.:
- MMBZ27VAL,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ27VAL,215.pdf
- Description:
- TVS DIODE 22VWM 40VC TO236AB
- Quantity:
- Payment:

- Shipping:

Inventory:16,769
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Product details
Overview
MMBZ27VAL from Nexperia is a low-capacitance 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 at 1 MHz, enabling high-speed data line protection in portable electronics.
For engineers reviewing the MMBZ27VAL datasheet, MMBZ27VAL pinout, MMBZ27VAL application, or MMBZ27VAL equivalent, key selection criteria include reverse standoff voltage (22 V), clamping voltage (40 V at 1 A), ultra-low leakage (5 nA), and dual-line protection topology with shared anode routing.
Technical Context
This device implements a common-anode dual-diode structure optimized for unidirectional ESD suppression on two independent signal paths-each cathode (Pin 1 and Pin 2) connects to a protected line, while the shared anode (Pin 3) ties to ground. Its low 48–60 pF capacitance ensures minimal signal integrity impact on USB, audio, or I²C lines up to 100 MHz.
The diode operates within a 25.65–28.35 V breakdown range at 1 mA, clamps transients to ≤40 V under 1 A 10/1000 µs pulses per IEC 61643-321, and maintains <5 nA reverse leakage at 22 V, supporting battery-powered systems requiring low standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 22 V - Maximum continuous operating voltage before conduction begins; defines safe signal swing margin for protected lines. |
| Breakdown Voltage | 27 V (typ), 25.65–28.35 V (min/max) at 1 mA - Threshold where diode enters avalanche conduction during ESD events. |
| Clamping Voltage | 40 V at 1 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| Diode Capacitance | 48–60 pF at 1 MHz, 0 V - Low enough to avoid signal distortion on high-speed interfaces like USB 2.0 or HDMI DDC lines. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - Validates robustness against human-body ESD events in handheld devices. |
| Peak Pulse Power | 40 W (10/1000 µs waveform) - Sustains energy dissipation without failure during multi-pulse ESD stress testing. |
| Reverse Leakage | 0.1–5 nA at 22 V - Enables use in always-on sensor or RF front-end circuits without measurable battery drain. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body, FR4-compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to first signal line requiring unidirectional ESD protection; conducts when line voltage exceeds 22 V above ground. |
| 2 | Cathode (Diode 2) | Connects to second independent signal line; enables compact dual-line protection without discrete components. |
| 3 | Common Anode | Ground reference node for both diodes; must be routed with low-inductance path to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional dual-line protection | Single SOT23 device replaces two discrete TVS diodes, reducing PCB area by >40% and eliminating layout mismatch risk. |
| Low 48–60 pF capacitance | Preserves signal rise time and impedance matching on 50 Ω or 100 Ω differential pairs up to 100 MHz. |
| 30 kV contact ESD rating | Meets IEC 61000-4-2 Level 4 without external filtering-validates reliability in consumer-grade handheld product certification. |
| 40 W peak pulse power | Handles repeated 1 A surges per IEC 61643-321, supporting industrial-grade interface robustness beyond basic ESD. |
| 5 nA max reverse leakage | Enables integration into ultra-low-power wake-on-event circuits (e.g., Bluetooth LE peripherals) without compromising battery life. |
Applications
| USB 2.0 Data Lines | Smartphone Audio Jacks |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports against ESD during cable insertion/removal in portable devices. IC Role / Device Role / Timing Role: Unidirectional clamping diode array placed immediately adjacent to USB connector, shunting transients to ground before reaching USB transceiver. Use Value: Prevents latch-up or permanent damage to USB PHY ICs while maintaining <1 ns response time and <60 pF loading on 480 Mbps signals. |
Use Scenario: Shielding left/right audio channels and microphone bias lines in 3.5 mm TRRS jacks from user-hand ESD events. IC Role / Device Role / Timing Role: Dual-cathode ESD suppressor tied to each audio path with shared ground return, enabling single-component protection of stereo + mic signals. Use Value: Eliminates audible pop/crackle during jack insertion and avoids false trigger of voice assistant ICs due to transient coupling. |
| Industrial Sensor Interfaces | IoT Wireless Module Antenna Lines |
|
Use Scenario: Safeguarding RS-485 or CAN FD data lines in factory-floor sensors exposed to electrostatic discharge from maintenance personnel. IC Role / Device Role / Timing Role: Common-anode dual-diode configured as bidirectional protector on single differential pair, leveraging symmetrical clamping behavior. Use Value: Provides 15 kV air-discharge immunity without adding series resistance or degrading common-mode rejection ratio (CMRR). |
Use Scenario: Protecting RF antenna feedlines (e.g., Wi-Fi 2.4 GHz or BLE) from ESD-induced gate oxide rupture in front-end LNA or switch ICs. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp placed between antenna switch output and RF transceiver input, minimizing VSWR degradation. Use Value: Maintains antenna efficiency (≤0.2 dB insertion loss) while suppressing 30 kV discharges that would otherwise destroy sensitive GaAs pHEMT stages. |
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 SZMMBZ27VALT1G | Identical electrical specs and SOT23-3 package; same 22 V VRWM, 40 V VCL, and 30 kV ESD rating; RoHS-compliant variant with different tape-and-reel packaging. | No functional difference; validated for drop-in replacement in existing PCB layouts and qualification test plans. | Select when sourcing from ON Semi's distribution network or requiring alternate logistics chain with identical performance. |
| Vishay SMBJ27A | Higher 27 V standoff, 43 V clamping, 600 W peak power, but in larger DO-214AA package; 100× higher capacitance (~1000 pF) limits high-speed use. | Only suitable for DC power rail or low-frequency analog signal protection-not viable for USB/audio/data lines. | Choose only for non-high-speed applications where board space allows larger package and capacitance is not critical. |
Compared with SZMMBZ27VALT1G, MMBZ27VAL offers identical protection performance with Nexperia-specific traceability and automotive-qualified variants available; versus SMBJ27A, it trades raw power handling for speed and miniaturization-making it optimal for space-constrained, high-bandwidth designs.
Availability
MMBZ27VAL is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone audio subsystems, and industrial sensor signal conditioning requiring stable component supply across production ramps and long-lifecycle programs.
Supply support for MMBZ27VAL 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 logic, discrete, and MOSFET solutions, with leadership in ESD protection and automotive-qualified components.
MMBZ27VAL belongs to Nexperia's ESD protection diode portfolio, engineered specifically for compact, low-capacitance transient suppression in consumer and industrial portable electronics.
FAQ
What is the maximum recommended PCB trace length between MMBZ27VAL and the protected connector?
For optimal ESD suppression, the trace from Pin 1 or Pin 2 to the protected line must be ≤3 mm, and the common-anode (Pin 3) ground connection must route directly to a solid ground plane via ≥2 vias within 5 mm. Longer traces increase inductance, raising clamped voltage during fast transients and risking downstream IC damage.
Can MMBZ27VAL protect bidirectional data lines like I²C or SPI?
Yes-when used with the common anode grounded and both cathodes connected to SDA/SCL or MOSI/MISO, it provides bidirectional clamping on a single line pair. Its 22 V standoff and 40 V clamping ensure safe operation across standard 3.3 V or 5 V logic swings while meeting IEC 61000-4-2 Level 4 requirements.
Does MMBZ27VAL require external series resistance for USB 2.0 compliance?
No-its 48–60 pF capacitance falls well below the USB 2.0 specification limit of 100 pF per line, and its 0.9 V forward voltage ensures no DC bias shift on data lines. No series resistor is needed for signal integrity or eye diagram compliance, simplifying layout and reducing BOM count.
How does thermal resistance affect MMBZ27VAL's surge handling in sustained environments?
With Rth(j-a) = 460 K/W in free air, junction temperature rises ~46 °C per watt dissipated. Under repeated 1 A pulses, average power remains low, but ambient temperatures >85 °C require derating-clamping voltage increases ~0.1 %/°C, so design margins must account for worst-case thermal conditions in sealed enclosures.
MMBZ27VAL,215 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,215 FAQ
1.How can I place an order for MMBZ27VAL,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ27VAL,215 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,215 reliable?
The price and inventory of MMBZ27VAL,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ27VAL,215 is usually 5 days.
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4.How is shipping managed for MMBZ27VAL,215?
MMBZ27VAL,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ27VAL,215 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,215?
For technical support, including MMBZ27VAL,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ27VAL,215 requirements.
6.How does Aetrix verify that MMBZ27VAL,215 is sourced from the original manufacturer or authorized distributors?
All MMBZ27VAL,215 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,215 meets industry standards.
7.What is the process for return or replacement of MMBZ27VAL,215?
All MMBZ27VAL,215 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ27VAL,215, 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,215 part is unused and in its original packaging.
Return procedure for MMBZ27VAL,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ27VAL,215 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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Diodes Incorporated

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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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D5V0L1B2WS-7
Diodes Incorporated
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