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Diodes Incorporated MMBZ27VCLQ-7-F
- Part No.:
- MMBZ27VCLQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ27VCLQ-7-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
MMBZ27VCLQ-7-F from Diodes Incorporated is a dual unidirectional TVS diode in SOT23 package, designed for ESD and transient overvoltage protection of two signal lines in common-cathode configuration. It features 27 V breakdown voltage (VBR = 25.65–28.35 V @ IT = 1.0 mA), 40 W peak pulse power (1 ms), 40 V max clamping voltage (VC @ IPP = 1.0 A), and AEC-Q101 qualification for automotive control units.
For engineers reviewing the MMBZ27VCLQ-7-F datasheet, MMBZ27VCLQ-7-F pinout, MMBZ27VCLQ-7-F application, or MMBZ27VCLQ-7-F equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, junction capacitance (<10 pF at 0 V), common-cathode topology compatibility with differential or dual-rail signal paths, and IATF 16949-manufactured supply chain traceability.
Technical Context
This device integrates two monolithic silicon Zener junctions sharing a common cathode terminal, enabling coordinated transient suppression across paired signal lines without cross-talk. Its 40 W peak power rating (per IEC 61000-4-5 10/1000 µs waveform) and low leakage (<50 nA @ VRWM = 22 V) support robust protection in high-reliability interfaces.
The SOT23 package delivers thermal resistance of 500 °C/W (junction-to-ambient, FR-4 board), and its −55 °C to +150 °C operating range meets under-hood automotive requirements. Temperature coefficient of reverse voltage is +0.090 %/°C, ensuring stable clamping across temperature extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 25.65–28.35 V @ IT = 1.0 mA - defines minimum trigger threshold before clamping activates |
| Working Peak Reverse Voltage (VRWM) | 22 V - maximum continuous DC or RMS signal voltage the diode blocks without conduction |
| Max Clamping Voltage (VC) | 40 V @ IPP = 1.0 A - limits transient voltage seen by downstream ICs during 10/1000 µs surge |
| Peak Pulse Power (PPK) | 40 W @ 1.0 ms - supports IEC 61000-4-5 Level 4 surge immunity testing |
| Junction Capacitance (CJ) | <10 pF @ 0 V - minimizes signal integrity impact on high-speed lines (e.g., CAN, LIN, sensor interfaces) |
| ESD Rating (HBM) | >8 kV - exceeds IEC 61000-4-2 Level 4 (±15 kV air / ±8 kV contact) for system-level ESD robustness |
| Operating Temperature | −55 °C to +150 °C - enables deployment in engine control modules and transmission control units |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input node for first protected signal line; connects to trace requiring ESD/TVS protection |
| Pin 2 | Cathode (Common) | Shared return path for both Zener junctions; ties to system ground or protected reference plane |
| Pin 3 | Anode 2 | Input node for second protected signal line; enables dual-line protection in single footprint |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional TVS in common-cathode configuration | Enables compact, matched protection for differential pairs (e.g., CAN H/L) without separate ground routing |
| 40 W peak pulse power (1 ms) | Withstands IEC 61000-4-5 surge events up to 1 A peak current while limiting voltage to ≤40 V |
| AEC-Q101 qualified & IATF 16949 manufactured | Validated for automotive electronics with full PPAP documentation and change-controlled production |
| Halogen- and antimony-free "Green" construction | Meets RoHS 3 (2015/863/EU) with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - supports eco-compliance programs |
| Low junction capacitance (<10 pF) | Preserves signal rise/fall times on data lines up to 10 Mbps (e.g., LIN bus, analog sensor outputs) |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting LIN bus transceiver pins against load dump and ESD in door module ECUs. IC Role / Device Role: Dual-line transient suppressor placed directly at connector entry point before transceiver input. Use Value: Clamps surges to ≤40 V while maintaining <10 pF loading - prevents transceiver latch-up and preserves 19.2 kbps signal fidelity. |
Use Scenario: Shielding 4–20 mA current-loop analog inputs from field-induced transients in PLC I/O modules. IC Role / Device Role: Common-cathode TVS across loop supply and return lines to shunt common-mode surges. Use Value: 22 V VRWM allows full 24 V loop headroom; 40 W rating handles 100 V/1 A surge per IEC 61000-4-4. |
| USB-C Port Protection | Automotive Infotainment Display Link |
|
Use Scenario: Safeguarding USB-C CC and VCONN lines from hot-plug ESD and cable discharge events. IC Role / Device Role: One anode protects CC line, other anode protects VCONN; shared cathode to system ground. Use Value: 8 kV HBM rating and sub-10 pF capacitance prevent data corruption during plug insertion and maintain USB PD negotiation timing. |
Use Scenario: Transient suppression on MIPI D-PHY clock and data lanes between infotainment SoC and display panel. IC Role / Device Role: Dual-channel clamping on differential pairs with matched VBR to avoid skew-induced jitter. Use Value: Tight 25.65–28.35 V VBR tolerance ensures simultaneous turn-on; +0.090 %/°C TC maintains clamping stability across cabin temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A | Single-channel, SMA package; 400 W peak power but larger footprint and higher CJ (~25 pF) | Requires two devices for dual-line protection; unsuitable for space-constrained PCBs or high-speed lines | Select when higher surge energy handling is needed and layout area permits discrete placement |
| TPD2E001DRYR | Two-channel unidirectional TVS in SOT-5X3; lower PPK (24 W), lower VC (27 V @ 1 A), CJ = 12 pF | Better clamping for 3.3 V logic, but insufficient for 24 V automotive rails due to 24 V VRWM | Prefer for low-voltage digital interfaces (e.g., I²C, GPIO); avoid where 22 V VRWM margin is required |
Compared with SMAJ27A and TPD2E001DRYR, MMBZ27VCLQ-7-F uniquely balances AEC-Q101 compliance, SOT23 space efficiency, 22 V working voltage headroom, and 40 V clamping-making it optimal for dual-signal automotive and industrial protection where footprint, temperature range, and regulatory alignment are critical.
Availability
MMBZ27VCLQ-7-F is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and USB-C port protection requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.
Supply support for MMBZ27VCLQ-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and consumer markets.
MMBZ27VCLQ-7-F belongs to Diodes' MMBZCLAQ series of AEC-Q101-qualified dual TVS diodes, engineered specifically for compact, high-temperature-stable transient suppression in automotive signal paths and industrial I/O interfaces.
FAQ
What is the polarity configuration of MMBZ27VCLQ-7-F?
MMBZ27VCLQ-7-F uses a common-cathode unidirectional configuration: Pin 1 and Pin 3 are anodes for two independent Zener junctions, and Pin 2 is their shared cathode. This allows independent clamping of two positive-going transients to a common ground reference, ideal for protecting differential or dual-rail signals without polarity inversion.
Does MMBZ27VCLQ-7-F meet automotive qualification standards?
Yes - MMBZ27VCLQ-7-F is AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. Its −55 °C to +150 °C operating range, 8 kV HBM ESD rating, and 40 W surge capability align with ISO 16750-2 and ISO 7637-2 requirements for automotive electronics deployed in engine compartments and body control modules.
How does the 40 W peak power rating translate to real-world surge immunity?
The 40 W rating applies to a 1.0 ms exponential decay pulse (10/1000 µs waveform per IEC 61000-4-5). At 1.0 A peak current, it clamps to ≤40 V - sufficient to protect 24 V-rated transceivers (e.g., LIN, CAN FD) against Level 4 surges. Derating curves show usable power drops to ~25 W at 85 °C ambient, maintaining functional safety margins.
Can MMBZ27VCLQ-7-F be used for bidirectional signal protection?
No - MMBZ27VCLQ-7-F is unidirectional only. It conducts only for positive transients relative to the common cathode (Pin 2). For bidirectional protection (e.g., AC-coupled lines or RS-485), a dual bidirectional TVS like SMBJ26CA or dedicated array such as PUSB3FR4 is required. Using this part on bidirectional lines risks forward conduction and signal distortion.
MMBZ27VCLQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- 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
- Voltage - Breakdown (Min):
- 25.65V
- Voltage - Clamping (Max) @ Ipp:
- 38V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MMBZ27VCLQ-7-F FAQ
1.How can I place an order for MMBZ27VCLQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ27VCLQ-7-F 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 MMBZ27VCLQ-7-F reliable?
The price and inventory of MMBZ27VCLQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ27VCLQ-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ27VCLQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ27VCLQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ27VCLQ-7-F?
MMBZ27VCLQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ27VCLQ-7-F 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 MMBZ27VCLQ-7-F?
For technical support, including MMBZ27VCLQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ27VCLQ-7-F requirements.
6.How does Aetrix verify that MMBZ27VCLQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ27VCLQ-7-F 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 MMBZ27VCLQ-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ27VCLQ-7-F?
All MMBZ27VCLQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ27VCLQ-7-F, 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 MMBZ27VCLQ-7-F part is unused and in its original packaging.
Return procedure for MMBZ27VCLQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ27VCLQ-7-F Tags
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