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Nexperia USA Inc. MMBZ15VAL-QR
- Part No.:
- MMBZ15VAL-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ15VAL-QR.pdf
- Description:
- MMBZ15VAL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,527
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Product details
Overview
MMBZ15VAL-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), 12 V reverse standoff voltage, ≤105 pF capacitance, and 40 W peak pulse power-enabling high-fidelity signal integrity in automotive infotainment data lines.
For engineers reviewing the MMBZ15VAL-Q datasheet, MMBZ15VAL-Q pinout, MMBZ15VAL-Q application, or MMBZ15VAL-Q equivalent, key selection criteria include its dual-line unidirectional clamping capability, ultra-low 5 nA leakage at 12 V, AEC-Q101 qualification, and SOT23 footprint compatibility with space-constrained PCB layouts in portable and automotive electronics.
Technical Context
This device implements a common-anode dual-diode architecture enabling simultaneous unidirectional protection of two independent signal paths to ground. Its low 85–105 pF capacitance (measured at 1 MHz, 0 V) preserves signal rise time in high-speed interfaces like USB 2.0 and I²C.
The diode achieves 21 V clamping voltage at 1.9 A (10/1000 µs waveform) while maintaining 14.25–15.75 V breakdown and 0.9 V forward voltage at 10 mA-ensuring robust surge suppression without false triggering during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V reverse standoff voltage - blocks normal operating signals up to 12 V while remaining non-conductive. |
| VBR | 15 V typical breakdown voltage (1 mA test current) - defines precise turn-on threshold for ESD clamping. |
| VCL | 21 V clamping voltage at 1.9 A - limits transient voltage seen by downstream ICs to safe levels. |
| Cd | 85–105 pF diode capacitance - minimizes signal distortion on high-frequency data lines (e.g., audio DAC outputs). |
| PPPM | 40 W rated peak pulse power - sustains high-energy ESD events per IEC 61643-321 without degradation. |
| IRM | 5 nA max reverse leakage at 12 V - prevents DC loading on sensitive analog or logic inputs. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds automotive and industrial immunity requirements. |
Pinout & Package
Encapsulated in a standard SOT23 (TO-236AB) surface-mount plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch, the MMBZ15VAL-Q supports automated placement and reflow soldering per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to first protected signal line; conducts ESD current to common anode (pin 3) during overvoltage. |
| 2 (K2) | Cathode of Diode 2 | Connects to second protected signal line; enables independent clamping of two unidirectional paths. |
| 3 (A) | Common Anode | Connected to system ground; serves as shared return path for both ESD current paths. |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode topology | Enables compact protection of two separate signal lines using one SOT23 footprint-reducing board area vs. discrete diodes. |
| AEC-Q101 qualification | Validated for automotive underhood and cabin applications including temperature cycling, humidity, and mechanical shock. |
| Ultra-low 5 nA leakage | Prevents signal attenuation or bias shift in high-impedance sensor interfaces and precision analog circuits. |
| 10/1000 µs surge compliance | Meets IEC 61643-321 for long-duration transients such as load dump-induced surges in vehicle power networks. |
Applications
| Automotive Infotainment | USB 2.0 Data Lines |
|---|---|
Use Scenario: Protecting HDMI, LVDS, or FPD-Link video signal pairs in head unit displays and rear-seat entertainment systems. IC Role / Device Role / Timing Role: Unidirectional clamping diode array absorbing ESD from connector mating/unmating and cable discharge events. Use Value: Prevents latch-up or gate oxide damage in SerDes ICs while preserving <100 ps signal edge integrity via 85 pF typical capacitance. | Use Scenario: Safeguarding D+ and D− lines in automotive USB host ports against human-body-model (HBM) and contact-discharge ESD. IC Role / Device Role / Timing Role: Dual-cathode TVS diode providing independent clamping per data line with shared ground return. Use Value: Maintains full-speed USB 2.0 eye diagram compliance (480 Mbps) by limiting capacitance-induced jitter and insertion loss. |
| Automotive ECU Sensor Interfaces | Portable Audio DAC Outputs |
Use Scenario: Shielding LIN bus or analog sensor inputs (e.g., pressure, temperature) in engine control units from ignition noise and ESD. IC Role / Device Role / Timing Role: Low-leakage (5 nA) bidirectional-capable protection device used in unidirectional mode for grounded-signal sensors. Use Value: Ensures sensor offset error remains below ±0.5 mV over -40°C to +125°C ambient, avoiding calibration drift. | Use Scenario: Protecting stereo headphone amplifier outputs in Bluetooth speakers and wearables from user-hand ESD. IC Role / Device Role / Timing Role: Common-anode dual-diode suppressing ±30 kV contact discharge without degrading audio bandwidth (20 Hz–20 kHz). Use Value: Eliminates audible pop/click artifacts during ESD events by clamping within 1 ns and limiting VCL to 21 V. |
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 SZMMBZ15VALT1G | Same SOT23 package, identical 12 V VRWM and 30 kV ESD rating, but 120 pF max capacitance (vs. 105 pF). | Suitable for lower-speed interfaces (e.g., CAN, LIN); less optimal for >10 MHz digital lines due to higher Cd. | Select when cost sensitivity outweighs marginal capacitance penalty in non-high-speed designs. |
| Vishay SMA6J12A | DO-214AC package, 12 V VRWM, 600 W PPPM-but single-line unidirectional, requiring two devices for dual-line protection. | Used where board space is unconstrained and higher surge energy (e.g., 12 V rail protection) is prioritized over footprint density. | Choose only if system-level surge testing requires >40 W pulse handling and dual-line integration is not required. |
Compared with SZMMBZ15VALT1G and SMA6J12A, the MMBZ15VAL-Q uniquely balances dual-line integration, 105 pF capacitance ceiling, and AEC-Q101 qualification in SOT23-making it optimal for space-limited automotive and portable electronics where signal fidelity and qualification compliance are co-prioritized.
Availability
MMBZ15VAL-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 interface protection, and portable audio DAC output circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MMBZ15VAL-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 MMBZ series targets automotive-grade transient protection, engineered specifically for AEC-Q101 compliance and low-capacitance signal-line safeguarding in harsh electromagnetic environments.
FAQ
What is the maximum clamping voltage of MMBZ15VAL-Q during a 1.9 A ESD event?
The MMBZ15VAL-Q exhibits a maximum clamping voltage (VCL) of 21 V when subjected to a 1.9 A peak pulse current with a 10/1000 µs waveform per IEC 61643-321. This value is measured between either cathode (pin 1 or 2) and the common anode (pin 3) at 25 °C ambient temperature, ensuring downstream ICs remain within safe operating voltage margins.
Can MMBZ15VAL-Q protect bidirectional signal lines like RS-485?
Yes-the MMBZ15VAL-Q can be configured for bidirectional protection of a single line by connecting the signal between pins 1 and 2, with pin 3 grounded. In this arrangement, the two diodes operate back-to-back, achieving symmetrical clamping with 21 V VCL in both polarities, validated per IEC 61000-4-2 air discharge (15 kV) and contact discharge (30 kV) tests.
Is thermal resistance data provided for PCB layout optimization?
Yes-Nexperia specifies Rth(j-a) = 460 K/W (junction-to-ambient, free air) and Rth(j-sp) = 340 K/W (junction-to-solder point) for the SOT23 package mounted on FR4 with standard footprint. These values guide copper pour sizing and via placement to maintain junction temperature below 150 °C under worst-case 40 W pulse conditions.
How does the 5 nA reverse leakage impact high-impedance sensor circuits?
At 5 nA maximum IRM (reverse leakage at 12 V), the MMBZ15VAL-Q introduces negligible error in sensor front-ends with input impedances up to 100 MΩ-contributing less than 0.5 mV offset. This ensures accuracy retention in automotive pressure sensors and thermistor-based temperature monitoring without requiring additional compensation circuitry.
MMBZ15VAL-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:
- 21V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 85pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ15VAL-QR FAQ
1.How can I place an order for MMBZ15VAL-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ15VAL-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 MMBZ15VAL-QR reliable?
The price and inventory of MMBZ15VAL-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ15VAL-QR is usually 5 days.
3.What payment methods are accepted for MMBZ15VAL-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ15VAL-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ15VAL-QR?
MMBZ15VAL-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ15VAL-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 MMBZ15VAL-QR?
For technical support, including MMBZ15VAL-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ15VAL-QR requirements.
6.How does Aetrix verify that MMBZ15VAL-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ15VAL-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 MMBZ15VAL-QR meets industry standards.
7.What is the process for return or replacement of MMBZ15VAL-QR?
All MMBZ15VAL-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ15VAL-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 MMBZ15VAL-QR part is unused and in its original packaging.
Return procedure for MMBZ15VAL-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ15VAL-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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Diodes Incorporated
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Diodes Incorporated
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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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