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Nexperia USA Inc. MMBZ12VAL,215
- Part No.:
- MMBZ12VAL,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ12VAL,215.pdf
- Description:
- TVS DIODE 8.5VWM 17VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,039
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Product details
Overview
MMBZ12VAL 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), 8.5 V reverse standoff voltage, and ultra-low 110–140 pF capacitance - enabling high-speed USB 2.0 and HDMI interface protection in portable electronics.
For engineers reviewing the MMBZ12VAL datasheet, MMBZ12VAL pinout, MMBZ12VAL application, or MMBZ12VAL equivalent, key selection criteria include clamping voltage (17 V at 2.35 A), low leakage (≤5 nA), bidirectional capability on a single line, and SOT23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The MMBZ12VAL integrates two unidirectional Zener-type TVS diodes sharing a common anode, allowing independent protection of two positive-polarity signal lines to ground. Its structure supports both unidirectional dual-line and bidirectional single-line configurations without external re-routing.
It operates within −55 °C to +150 °C ambient range, with thermal resistance from junction to ambient of 460 K/W (free air) and clamping response defined per IEC 61643-321 (10/1000 µs waveform). Breakdown occurs at 11.4–12.6 V (1 mA), ensuring reliable turn-on before system-level damage thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 8.5 V - maximum continuous operating voltage before conduction begins; defines safe signal swing margin for 5 V or 3.3 V data lines. |
| Clamping Voltage | 17 V at 2.35 A - peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream IC inputs. |
| Diode Capacitance | 110–140 pF at 1 MHz - low enough to avoid signal integrity degradation in USB 2.0 (480 Mbps) and audio I²S interfaces. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds industrial and consumer immunity requirements without additional shielding. |
| Peak Pulse Power | 40 W (10/1000 µs) - sustains transient energy from lightning-induced surges or cable discharge events in handheld devices. |
| Leakage Current | ≤5 nA at 8.5 V - negligible loading on high-impedance sensor or analog front-end circuits. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch, optimized for automated placement and reflow soldering on dense PCBs.
| 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) and ground path. |
| 2 (K2) | Cathode of Diode 2 | Connects to second protected signal line; enables independent protection of dual unidirectional paths. |
| 3 (A) | Common Anode | Shared connection point tied to system ground; establishes reference for both diodes' clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode topology | Enables compact dual-line protection in one SOT23 footprint - eliminates need for two discrete diodes and saves >30% board area. |
| Low 110–140 pF capacitance | Maintains signal rise/fall times <1 ns in 50 Ω systems - critical for preserving eye diagram integrity in high-speed digital interfaces. |
| 30 kV contact ESD rating | Exceeds IEC 61000-4-2 Level 4 without derating - ensures robustness against repeated human-handling events in factory or end-user environments. |
| 17 V clamping at 2.35 A | Keeps protected IC I/O pins below absolute maximum ratings during surge - prevents latch-up or oxide breakdown in 3.3 V logic families. |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detect |
|---|---|
|
Use Scenario: Protection of D+ and D− lines in portable USB peripherals against ESD during cable insertion/removal. IC Role / Device Role / Timing Role: Unidirectional clamping diode pair referenced to ground, responding within <1 ns to transients. Use Value: Prevents damage to USB transceiver PHY while maintaining <15 pF added capacitance per line - compliant with USB 2.0 impedance and timing specs. |
Use Scenario: Safeguarding HDMI HPD (Hot-Plug Detect) pin against ESD during display connection/disconnection. IC Role / Device Role / Timing Role: Single-line bidirectional protection mode using shared cathodes (pins 1 & 2) and common anode (pin 3). Use Value: Enables fail-safe plug/unplug detection without false triggers or DC leakage - IRM ≤5 nA avoids pull-up resistor loading errors. |
| Smartphone Audio Jack | Industrial Sensor Interface |
|
Use Scenario: Protecting stereo headphone L/R and mic input lines in 3.5 mm TRRS jacks from user-handling ESD. IC Role / Device Role / Timing Role: Dual unidirectional clamp with separate cathodes, each routed to dedicated analog signal path. Use Value: Preserves audio SNR (>100 dB) by limiting added capacitance to ≤140 pF and leakage to ≤0.1 nA typical - avoids bass roll-off or DC offset. |
Use Scenario: Shielding 4–20 mA current-loop sensor inputs in programmable logic controllers from field-induced transients. IC Role / Device Role / Timing Role: Ground-referenced transient suppressor placed at connector entry point before signal conditioning amplifier. Use Value: Withstands 40 W peak pulse power and 150 °C junction temperature - ensures reliability in harsh industrial enclosures without derating. |
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 | Higher capacitance (180 pF typ), lower clamping voltage (15 V), same SOT23-3L package and common-anode topology. | Better suited for lower-voltage 1.8 V I/O rails but less ideal for USB 2.0 due to bandwidth limitation. | Select when clamping voltage margin is prioritized over signal integrity in sub-100 Mbps interfaces. |
| Vishay ESDE0402-12E | Lower standoff (6.5 V), higher ESD rating (30 kV air), 0402 footprint - no common-anode dual-diode structure; requires two devices for dual-line protection. | Requires more PCB area and routing complexity; better for ultra-compact single-line protection only. | Choose only when board space permits discrete placement and dual-line coordination is handled externally. |
Compared with NUP4105MR6T1G and ESDE0402-12E, the MMBZ12VAL uniquely balances low capacitance, dual-line integration, and 8.5 V standoff - making it optimal for cost-sensitive, space-constrained USB and audio designs where signal fidelity and layout simplicity are co-critical.
Availability
MMBZ12VAL is available at Aetrix Electronics and suitable for USB 2.0 interface protection, smartphone audio jack hardening, and industrial 4–20 mA sensor input conditioning requiring stable component supply across production ramps.
Supply support for MMBZ12VAL 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability discrete and logic components for consumer, industrial, and automotive markets.
The MMBZ12VAL belongs to Nexperia's ESD protection diode portfolio, engineered specifically for board-level I/O hardening in portable and high-density electronics where low capacitance and standardized SMT packaging are mandatory.
FAQ
What is the maximum operating temperature for MMBZ12VAL?
The MMBZ12VAL has a specified junction temperature limit of 150 °C and an ambient operating range of −55 °C to +150 °C. Its thermal resistance from junction to ambient is 460 K/W in free air, meaning power dissipation must be limited to maintain safe junction temperatures under sustained load conditions.
Can MMBZ12VAL protect bidirectional signal lines like RS-485?
No - the MMBZ12VAL is a unidirectional device in common-anode configuration. While it can protect a single bidirectional line by connecting both cathodes to the line and the anode to ground, it does not provide symmetrical clamping for negative-going transients beyond its reverse standoff voltage (8.5 V); true bidirectional protection requires a dedicated symmetric TVS array.
How does MMBZ12VAL differ from standard Zener diodes used for ESD?
Unlike general-purpose Zeners, the MMBZ12VAL is optimized for fast transient suppression: it features tightly controlled clamping voltage (17 V at 2.35 A), guaranteed 30 kV ESD rating, low leakage (≤5 nA), and low capacitance (≤140 pF). Standard Zeners lack IEC 61000-4-2 qualification and exhibit slower response and higher capacitance.
Is MMBZ12VAL suitable for automotive applications?
No - per Nexperia's revision history (v.3, April 2023), the MMBZ12VAL is explicitly designated as non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls; for automotive use, Nexperia recommends the -Q qualified variants such as PESD5V0S1BA.
MMBZ12VAL,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):
- 8.5V (Max)
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 2.35A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 110pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ12VAL,215 FAQ
1.How can I place an order for MMBZ12VAL,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ12VAL,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 MMBZ12VAL,215 reliable?
The price and inventory of MMBZ12VAL,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ12VAL,215 is usually 5 days.
3.What payment methods are accepted for MMBZ12VAL,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ12VAL,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ12VAL,215?
MMBZ12VAL,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ12VAL,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 MMBZ12VAL,215?
For technical support, including MMBZ12VAL,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ12VAL,215 requirements.
6.How does Aetrix verify that MMBZ12VAL,215 is sourced from the original manufacturer or authorized distributors?
All MMBZ12VAL,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 MMBZ12VAL,215 meets industry standards.
7.What is the process for return or replacement of MMBZ12VAL,215?
All MMBZ12VAL,215 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ12VAL,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 MMBZ12VAL,215 part is unused and in its original packaging.
Return procedure for MMBZ12VAL,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ12VAL,215 Tags
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ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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