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Nexperia USA Inc. MMBZ15VAL-QVL
- Part No.:
- MMBZ15VAL-QVL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ15VAL-QVL.pdf
- Description:
- MMBZ15VAL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,739
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Product details
Overview
MMBZ15VAL-Q from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed to protect two signal lines against ESD transients up to 30 kV (contact discharge), with 12 V reverse standoff voltage, ≤105 pF capacitance, and 40 W peak pulse power. It is AEC-Q101 qualified for automotive ECU interfaces.
For engineers reviewing the MMBZ15VAL-Q datasheet, MMBZ15VAL-Q pinout, MMBZ15VAL-Q application, or MMBZ15VAL-Q equivalent, key selection criteria include bidirectional/single-line vs. unidirectional/two-line protection mode, clamping voltage under 1.9 A IPPM, ultra-low 5 nA leakage at 12 V, and SOT23 layout compatibility for high-speed data lines.
Technical Context
This device implements a dual-cathode, single-common-anode topology enabling either independent unidirectional protection of two grounded-referenced signal lines or combined bidirectional protection of one line referenced to ground. Its junction structure delivers symmetric breakdown behavior (14.25–15.75 V) and low clamping (21 V at 1.9 A) under IEC 61643-321 10/1000 µs surge conditions.
Thermal design relies on low Rth(j-a) = 460 K/W (free air) and Rth(j-sp) = 340 K/W (solder point), validated on FR4 PCB with standard footprint. The 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm SOT23 package supports automated placement while maintaining <105 pF capacitance at 1 MHz and 0 V bias - critical for USB 2.0, HDMI, and automotive infotainment data integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V reverse standoff voltage - ensures no conduction during normal 12 V rail or signal operation. |
| VBR | 15 V typical breakdown voltage (1 mA) - defines precise turn-on threshold for transient suppression. |
| VCL | 21 V clamping voltage at 1.9 A - limits voltage seen by protected ICs during IEC 61000-4-2 ESD events. |
| Cd | 85–105 pF at 1 MHz, 0 V - preserves signal integrity on high-speed lines like CAN FD or LVDS. |
| PPPM | 40 W rated peak pulse power - sustains energy absorption per IEC 61643-321 10/1000 µs waveform. |
| IRM | 5 nA max reverse leakage at 12 V - avoids DC loading on sensitive analog or low-power sensor inputs. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds automotive and industrial immunity requirements. |
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 on FR4 PCBs with standard footprint (Fig. 10).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (cathode of diode 1) | Connects to first protected signal line; conducts transient current to common anode when line voltage exceeds VRWM. |
| 2 | K2 (cathode of diode 2) | Connects to second protected signal line; enables independent unidirectional protection of two separate paths. |
| 3 | A (common anode) | Shared connection to ground or system reference; completes current path for both diodes during ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode architecture | Enables flexible routing: two unidirectional lines or one bidirectional line without external components. |
| Low 105 pF capacitance | Maintains signal rise/fall times on 480 Mbps USB 2.0 or 100 Mbps CAN FD buses without distortion. |
| AEC-Q101 qualification | Validated for automotive underhood and cabin ECUs operating from −40 °C to +125 °C ambient. |
| 40 W peak pulse power | Handles repeated 1.9 A surges per IEC 61643-321, supporting long-term reliability in industrial HMI interfaces. |
| 5 nA reverse leakage | Prevents battery drain in always-on telematics modules and avoids offset errors in precision sensor front-ends. |
Applications
| Automotive ECU Interfaces | USB 2.0 Data Lines |
|---|---|
Use Scenario: Protecting LIN/CAN physical layer transceivers and microcontroller GPIOs in engine control units exposed to ISO 10605 pulses. IC Role / Device Role / Timing Role: ESD clamp placed within 3 mm of connector entry point to limit transient voltage before reaching transceiver input pins. Use Value: Prevents latch-up or gate oxide damage in AEC-Q100 qualified MCUs during 30 kV contact discharge events. | Use Scenario: Shielding D+ and D− lines of USB 2.0 ports in infotainment head units against user-hand ESD. IC Role / Device Role / Timing Role: Dual-cathode configuration allows independent protection of both differential lines with minimal added capacitance. Use Value: Maintains eye diagram integrity at 480 Mbps while meeting IEC 61000-4-2 Level 4 immunity without signal attenuation. |
| Audio Line Inputs | Portable Device Keypad Lines |
Use Scenario: Safeguarding analog audio inputs (e.g., AUX-in, microphone bias) in car radios and portable speakers. IC Role / Device Role / Timing Role: Unidirectional clamping referenced to ground prevents forward conduction during normal ±1 V audio swing. Use Value: Eliminates audible pop/crackle caused by ESD-induced DC offset shift in op-amp input stages. | Use Scenario: Protecting mechanical keypad scan lines in GPS trackers and medical wearables from finger-tip ESD. IC Role / Device Role / Timing Role: Common-anode configuration ties all keypad return lines to shared ground, reducing component count vs. discrete diodes. Use Value: Enables compact 2.9 mm × 1.3 mm footprint for space-constrained wearable PCBs while sustaining >100,000 actuation cycles. |
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 | Quad-channel, 15 V VRWM, 120 pF typical capacitance, 30 W PPPM, SOT-563 package | Supports four lines in same footprint but higher capacitance limits use to ≤100 Mbps interfaces | Select for multi-line protection where board area is constrained and speed <100 Mbps suffices |
| Vishay ESDESD351 | Single-channel, 3.3 V VRWM, 0.9 pF capacitance, 20 W PPPM, SOD-323 package | Optimized for low-voltage logic (e.g., 3.3 V I²C), not suitable for 12 V automotive signal rails | Select only for sub-5 V digital interfaces requiring ultra-low capacitance; not drop-in for 12 V systems |
Compared with NUP4105MR6T1G and ESDESD351, MMBZ15VAL-Q uniquely balances 12 V standoff, dual-line flexibility, and 105 pF capacitance in SOT23 - making it optimal for cost-sensitive automotive and industrial data line protection where voltage rating and footprint are primary constraints.
Availability
MMBZ15VAL-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 interface protection, and portable electronics requiring stable component supply across extended temperature ranges and ESD immunity compliance.
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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade robustness.
MMBZ15VAL-Q belongs to Nexperia's Automotive-Qualified ESD Protection Diode product line, engineered specifically for transient suppression in harsh automotive environments while maintaining signal fidelity on high-speed data links.
FAQ
What is the maximum clamping voltage of MMBZ15VAL-Q during an ESD event?
The clamping voltage (VCL) is 21 V when subjected to a 1.9 A peak pulse current (IPPM) per IEC 61643-321 10/1000 µs waveform. This value is measured from either cathode pin (1 or 2) to the common anode (pin 3) at 25 °C ambient, ensuring downstream ICs see limited overvoltage during standardized ESD stress.
Can MMBZ15VAL-Q be used for bidirectional signal protection?
Yes - when configured with the common anode (pin 3) tied to ground and both cathodes (pins 1 and 2) connected to opposite ends of a single signal line, it functions as a bidirectional ESD protector. This exploits its symmetrical breakdown characteristics (14.25–15.75 V) and meets IEC 61000-4-2 requirements for both polarities.
Is MMBZ15VAL-Q compatible with lead-free reflow soldering processes?
Yes - the SOT23 package is qualified for standard lead-free reflow profiles per J-STD-020. Recommended peak temperature is 260 °C for ≤30 seconds, with preheat ramp rate ≤3 °C/s. The device's thermal resistance (Rth(j-a) = 460 K/W) and package construction ensure reliability under JEDEC-compliant thermal cycling.
How does the common-anode configuration affect PCB layout compared to discrete diodes?
The common-anode layout reduces trace inductance by consolidating the ground return path to a single pad (pin 3), minimizing loop area versus two separate diodes. This improves high-frequency transient response and simplifies routing - especially critical for protecting differential pairs where matched path lengths must be preserved.
MMBZ15VAL-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):
- 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-QVL FAQ
1.How can I place an order for MMBZ15VAL-QVL through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ15VAL-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 MMBZ15VAL-QVL reliable?
The price and inventory of MMBZ15VAL-QVL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ15VAL-QVL is usually 5 days.
3.What payment methods are accepted for MMBZ15VAL-QVL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ15VAL-QVL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ15VAL-QVL?
MMBZ15VAL-QVL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ15VAL-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 MMBZ15VAL-QVL?
For technical support, including MMBZ15VAL-QVL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ15VAL-QVL requirements.
6.How does Aetrix verify that MMBZ15VAL-QVL is sourced from the original manufacturer or authorized distributors?
All MMBZ15VAL-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 MMBZ15VAL-QVL meets industry standards.
7.What is the process for return or replacement of MMBZ15VAL-QVL?
All MMBZ15VAL-QVL units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ15VAL-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 MMBZ15VAL-QVL part is unused and in its original packaging.
Return procedure for MMBZ15VAL-QVL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ15VAL-QVL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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