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Nexperia USA Inc. MMBZ20VCL-QR
- Part No.:
- MMBZ20VCL-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ20VCL-QR.pdf
- Description:
- MMBZ20VCL-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,607
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Product details
Overview
MMBZ20VCL-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 30 kV contact ESD immunity (IEC 61000-4-2 Level 4), 17 V reverse standoff voltage, ≤80 pF capacitance, ≤5 nA leakage, and 40 W peak pulse power - deployed in automotive ECUs and portable electronics interfaces.
For engineers reviewing the MMBZ20VCL-Q datasheet, MMBZ20VCL-Q pinout, MMBZ20VCL-Q application, or MMBZ20VCL-Q equivalent, key selection criteria include common-cathode dual-line ESD clamping behavior, low-capacitance signal integrity preservation, AEC-Q101 qualification, and 28 V clamping voltage at 1.4 A pulse current.
Technical Context
This device implements a dual-anode, single-common-cathode topology enabling simultaneous unidirectional protection of two independent signal paths - each with identical 19–21 V breakdown and 28 V clamping under 10/1000 µs surge. Its construction uses silicon planar technology optimized for fast response (<1 ns rise time) to ESD events.
Thermal design relies on low junction-to-solder-point resistance (280 K/W) and junction temperature limits up to 150 °C, supporting operation in automotive ambient ranges (−55 °C to +150 °C). The 1.9 mm lead pitch and 2.9 × 1.3 × 1.0 mm body enable high-density PCB layout near connectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 17 V - Maximum continuous operating voltage before conduction begins; defines safe signal swing range for protected lines. |
| Breakdown Voltage | 20 V (typ) - Voltage at 1 mA leakage; ensures reliable turn-on during transients while avoiding false triggering. |
| Clamping Voltage | 28 V at 1.4 A - Peak voltage seen by protected circuit during IEC 61643-321 10/1000 µs surge; limits stress on downstream ICs. |
| Diode Capacitance | 65–80 pF at 1 MHz - Low enough to avoid signal distortion on high-speed data lines (e.g., USB 2.0, I²C). |
| ESD Rating | 30 kV contact discharge - Meets IEC 61000-4-2 Level 4; qualifies for direct interface protection in handheld and automotive environments. |
| Leakage Current | ≤5 nA at 17 V - Minimizes DC loading on sensitive analog or low-power digital inputs. |
| Peak Pulse Power | 40 W - Sustains energy dissipation during standardized surge events without thermal runaway. |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mounted plastic package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch and 3 terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Connects to first signal line requiring unidirectional ESD clamping to ground via common cathode. |
| 2 (A2) | Anode of Diode 2 | Connects to second independent signal line; enables dual-line protection without shared anode coupling. |
| 3 (CC) | Common Cathode | Single ground reference point for both diodes; simplifies PCB routing and reduces return-path inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional dual-line protection | Enables independent ESD suppression on two separate positive-going signals sharing one ground path. |
| Bidirectional single-line mode | Supports bidirectional protection when A1 and A2 are tied together - useful for AC-coupled or floating lines. |
| AEC-Q101 qualified | Validated for automotive applications including engine control, infotainment, and ADAS sensor interfaces. |
| Ultra-low leakage | 0.1–5 nA reverse current preserves battery life and avoids false logic states in always-on circuits. |
| Low thermal resistance | 280 K/W junction-to-solder-point enables reliable operation under repeated surge conditions on standard FR4 PCBs. |
Applications
| Automotive ECUs | USB 2.0 Interfaces |
|---|---|
Use Scenario: Protecting CAN/LIN bus signal pins and sensor input lines in engine control units exposed to load dump and ESD. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry points to shunt ESD and surge energy to chassis ground. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and transceivers while maintaining <1 ns response time. |
Use Scenario: Shielding D+ and D− lines of USB 2.0 ports in docking stations and peripherals against human-body-model ESD. IC Role / Device Role / Timing Role: Dual-anode clamp ensuring differential signal integrity remains intact during ±8 kV HBM events. Use Value: 65–80 pF capacitance avoids signal edge degradation and maintains eye diagram compliance at 480 Mbps. |
| Smartphone Audio Jacks | Industrial HMI Panels |
Use Scenario: Safeguarding microphone and headset detection lines in 3.5 mm TRRS jacks subjected to frequent plug/unplug ESD. IC Role / Device Role / Timing Role: Common-cathode dual-diode structure isolates audio path DC bias while clamping transients to ground. Use Value: ≤5 nA leakage prevents DC offset drift in analog audio amplifiers and ADC reference paths. |
Use Scenario: Protecting RS-485 and GPIO lines on touch-enabled industrial HMIs installed in electrically noisy factory environments. IC Role / Device Role / Timing Role: Front-end surge suppressor mounted within 2 mm of panel connectors to minimize inductive overshoot. Use Value: 28 V clamping voltage ensures compatibility with 3.3 V/5 V logic rails and prevents overvoltage lockup of FPGAs or ASICs. |
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 NUP2114 | Lower clamping voltage (24 V @ 1 A), higher capacitance (120 pF), same SOT23-3 package. | Better for low-voltage logic (1.8 V–3.3 V), less suitable for high-speed interfaces due to capacitance. | Select when tighter clamping margin is critical and signal bandwidth ≤10 MHz. |
| Vishay VC030203 | Higher standoff (24 V), lower ESD rating (20 kV contact), dual-channel but non-common-cathode layout. | Requires separate ground traces; increases PCB routing complexity and inductance. | Prefer only if system-level grounding architecture mandates isolated cathodes. |
Compared with NUP2114 and VC030203, MMBZ20VCL-Q offers optimal balance of low capacitance, automotive qualification, and simplified common-cathode routing - making it preferred for space-constrained, high-reliability dual-line protection where signal fidelity and AEC-Q101 compliance are mandatory.
Availability
MMBZ20VCL-Q is available at Aetrix Electronics and suitable for automotive electronic control units, USB 2.0 peripheral interfaces, and portable consumer electronics requiring stable component supply across production lifecycles.
Supply support for MMBZ20VCL-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 specializing in high-performance, high-reliability discrete, logic, and MOSFET devices - headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
MMBZ20VCL-Q belongs to Nexperia's Automotive-qualified ESD Protection portfolio, engineered specifically for robust transient suppression in harsh environments such as vehicle cabins, industrial controls, and mobile device interfaces.
FAQ
What is the maximum recommended trace length between MMBZ20VCL-Q and the protected signal line?
For effective ESD suppression, the PCB trace from the protected line to the MMBZ20VCL-Q anode must be ≤2 mm, and the cathode-to-ground path must be direct and low-inductance - ideally using a dedicated ground plane via within 1 mm of pin 3. Longer traces increase inductive overshoot and reduce clamping efficacy during sub-nanosecond ESD events.
Can MMBZ20VCL-Q protect bidirectional data lines like RS-485 or CAN without external components?
No - MMBZ20VCL-Q is unidirectional and requires external series resistors or complementary diodes for true bidirectional protection. For RS-485/CAN, it protects only the positive side of differential pairs; full protection demands either a bidirectional array (e.g., PESD5V0S1BA) or discrete back-to-back configuration.
Does the 30 kV ESD rating apply to both pins 1 and 2 simultaneously?
Yes - the 30 kV contact discharge rating per IEC 61000-4-2 applies independently to each anode (pin 1 or pin 2) referenced to the common cathode (pin 3), verified with ten non-repetitive pulses per pin. Simultaneous stressing is not specified in the datasheet and is not guaranteed.
How does thermal derating affect MMBZ20VCL-Q's peak pulse power above 25 °C ambient?
Rated peak pulse power decreases linearly with junction temperature: at 125 °C, PPPM drops to ~60% of its 25 °C value (≈24 W), per Fig. 3 in the datasheet. This is governed by Rth(j-a) = 350 K/W and must be accounted for in thermally constrained enclosures or high-power surge repetition scenarios.
MMBZ20VCL-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):
- 17V (Max)
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 28V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 65pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ20VCL-QR FAQ
1.How can I place an order for MMBZ20VCL-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ20VCL-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 MMBZ20VCL-QR reliable?
The price and inventory of MMBZ20VCL-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ20VCL-QR is usually 5 days.
3.What payment methods are accepted for MMBZ20VCL-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ20VCL-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ20VCL-QR?
MMBZ20VCL-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ20VCL-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 MMBZ20VCL-QR?
For technical support, including MMBZ20VCL-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ20VCL-QR requirements.
6.How does Aetrix verify that MMBZ20VCL-QR is sourced from the original manufacturer or authorized distributors?
All MMBZ20VCL-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 MMBZ20VCL-QR meets industry standards.
7.What is the process for return or replacement of MMBZ20VCL-QR?
All MMBZ20VCL-QR units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ20VCL-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 MMBZ20VCL-QR part is unused and in its original packaging.
Return procedure for MMBZ20VCL-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ20VCL-QR Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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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
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D5V0L1B2WS-7
Diodes Incorporated
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