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Diodes Incorporated SMF4L60AQ-7
- Part No.:
- SMF4L60AQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L60AQ-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:9,512
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Product details
Overview
SMF4L60AQ-7 from Diodes Incorporated is a unidirectional transient voltage suppressor (TVS) diode in DO-219AA package, rated for 60 V working peak reverse voltage (VRWM), 66.7–73.7 V breakdown voltage (VBR), and 96.8 A maximum peak pulse current (IRSM) under 10/1000 µs waveform. It delivers 400 W peak pulse power dissipation and clamps to ≤96.8 V at rated surge, meeting IEC61000-4-2 ±30 kV ESD protection for automotive battery contacts and power management rails.
For engineers reviewing the SMF4L60AQ-7 datasheet, SMF4L60AQ-7 pinout, SMF4L60AQ-7 application, or SMF4L60AQ-7 equivalent, this device is selected for high-reliability overvoltage protection where low clamping voltage, sub-1 ns response time, AEC-Q101 qualification, and green RoHS-compliant packaging are critical in 12 V/24 V automotive subsystems and industrial DC power interfaces.
Technical Context
This TVS operates as a unidirectional clamp between anode and cathode, triggered when reverse voltage exceeds VBR (66.7–73.7 V). Its fast response (<1.0 ns) ensures suppression before downstream ICs experience overstress, and its low thermal resistance (RθJA = 96 °C/W) supports sustained operation on FR-4 PCBs with 2 oz copper pads.
Designed for automotive-grade reliability, it features AEC-Q101 qualification, PPAP capability, and manufacturing in IATF 16949-certified facilities. The DO-219AA package provides 0.016 g mass, 94V-0 flammability rating, and matte tin terminals solderable per MIL-STD-202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 60 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin above 12 V/24 V nominal rail voltages. |
| VBR (min/max) | 66.7 / 73.7 V - Measured at 1 mA IT; defines precise turn-on threshold for predictable overvoltage triggering. |
| VC (max) | 96.8 V - Clamping voltage at 96.8 A IRSM (10/1000 µs); limits worst-case stress on protected circuitry. |
| PPK | 400 W - Peak pulse power handling (10/1000 µs); enables robust surge immunity against ISO 7637-2 Load Dump and EFT bursts. |
| IR @ VRWM | 4.1 µA - Reverse leakage at 60 V; ensures minimal standby current drain in always-on automotive modules. |
| Response Time | <1.0 ns - Time from 0 V to VBR under unidirectional surge; prevents voltage overshoot beyond clamping level. |
| AEC-Q101 | Qualified - Validated for automotive temperature range (−55 °C to +175 °C) and mechanical stress requirements. |
Pinout & Package
Package: DO-219AA - Surface-mount, flat lead, cathode-band marked unidirectional configuration; dimensions: 2.80 mm (E) × 1.90 mm (D) × 0.60 mm (L), weight 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side | Connected to protected line (e.g., battery feed); conducts during forward surge or ESD event. |
| Cathode | Clamp/Return side | Connected to ground or low-impedance return path; establishes reference for reverse-biased clamping action. |
Key Features
| Feature | Design Value |
|---|---|
| IEC61000-4-2 ESD Protection | ±30 kV air, ±30 kV contact - Enables direct interface with exposed connectors without external ESD staging. |
| Green Packaging | Halogen- and antimony-free, RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb) - Meets automotive environmental compliance mandates. |
| Low Thermal Resistance | RθJA = 96 °C/W - Supports stable operation at TA = +125 °C with standard PCB layout (1" × 1", 2 oz Cu). |
| Fast Transient Response | <1.0 ns rise-to-clamp - Ensures suppression occurs before sensitive logic or analog circuits exceed absolute maximum ratings. |
| Automotive Qualification | AEC-Q101 qualified, PPAP capable, IATF 16949 manufactured - Enables use in safety-critical body control, infotainment, and ADAS power domains. |
Applications
| Battery Management System (BMS) Input Protection | Automotive Infotainment Power Rail |
|---|---|
Use Scenario: Protects BMS front-end monitoring ICs and ADC inputs from load dump transients on 12 V battery lines. IC Role / Device Role: Unidirectional TVS placed between battery feed and local LDO input, clamping surges to ≤96.8 V. Use Value: Prevents latch-up or permanent damage to precision voltage monitors operating up to 65 V absolute max rating. |
Use Scenario: Shields USB-C PD controller and display power sequencer from ESD events at vehicle docking ports. IC Role / Device Role: TVS mounted at connector entry point, shunting ±30 kV contact ESD to chassis ground. Use Value: Eliminates need for secondary ESD filters, reducing BOM count while maintaining CISPR 25 Class 5 immunity. |
| Industrial PLC 24 V DC Input Module | Telematics Control Unit (TCU) CAN Power Supply |
Use Scenario: Guards programmable logic controller digital input stage against field-wiring induced surges and inductive kickback. IC Role / Device Role: TVS installed across 24 V supply rail prior to input conditioning circuitry and optocoupler drivers. Use Value: Maintains functional integrity during 4 kV EFT bursts per IEC 61000-4-4, preventing false triggering or reset. |
Use Scenario: Protects TCU's 5 V CAN transceiver VCC rail from coupled transients originating from adjacent high-current power circuits. IC Role / Device Role: Unidirectional clamp between CAN power rail and ground, sized for 96.8 A surge with low VC. Use Value: Ensures CAN communication remains uninterrupted during ISO 16750-2 pulse 5a/b load dump events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A | DO-214AC package; higher RθJA (125 °C/W); same VRWM/VBR but 10% higher VC (103 V). | Larger footprint; less suitable for dense automotive PCBs requiring DO-219AA space savings. | Prefer SMF4L60AQ-7 when board area is constrained and thermal performance must be maximized. |
| SMF4L60CAQ-7 | Bi-directional variant; identical VRWM/VBR/VC specs but symmetrical clamping for AC-coupled or floating lines. | Used where bidirectional surges (e.g., antenna lines, differential buses) require equal positive/negative clamping. | Select SMF4L60AQ-7 only for DC-coupled unidirectional protection; choose CAQ version if polarity-agnostic clamping is needed. |
Compared with SMAJ60A, SMF4L60AQ-7 offers 23% lower thermal resistance and 6.5% lower clamping voltage in a 30% smaller footprint; versus SMF4L60CAQ-7, it provides optimized unidirectional performance with tighter leakage (4.1 µA vs 8.2 µA) for battery-sensitive systems.
Availability
SMF4L60AQ-7 is available at Aetrix Electronics and suitable for automotive battery management, industrial PLC power inputs, and telematics control unit protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMF4L60AQ-7 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 and industrial markets.
The SMF4L series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for compact, high-surge-capability overvoltage protection in space-constrained automotive electronics and harsh-environment industrial controls.
FAQ
What is the maximum clamping voltage of SMF4L60AQ-7 at its rated surge current?
The maximum clamping voltage (VC) is 96.8 V at 96.8 A peak pulse current (IRSM), tested with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (−55 °C to +175 °C) and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMF4L60AQ-7 suitable for bidirectional signal line protection?
No - SMF4L60AQ-7 is unidirectional, with cathode band marking and asymmetric IV characteristics. For bidirectional protection (e.g., RS-485, USB D+/D−), the bi-directional variant SMF4L60CAQ-7 must be used, which exhibits matched clamping in both polarities and double the IR limit at VRWM.
How does the DO-219AA package improve thermal performance over DO-214AC?
The DO-219AA package achieves RθJA = 96 °C/W versus ~125 °C/W for DO-214AC due to its shorter thermal path, optimized leadframe geometry, and lower junction-to-solder-point resistance (RθJS = 70 °C/W). This allows 20% higher sustained power handling on identical PCB layouts.
Does SMF4L60AQ-7 meet automotive ESD standards beyond IEC61000-4-2?
Yes - in addition to IEC61000-4-2 ±30 kV air/contact, it is validated per ISO 10605 (automotive ESD) and supports system-level compliance with ISO 16750-2 (electrical loads) and ISO 7637-2 (transient conduction), confirmed by AEC-Q101 stress testing including temperature cycling and HTRB.
SMF4L60AQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-219AA
- Series:
- SMF4L
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AA
SMF4L60AQ-7 FAQ
1.How can I place an order for SMF4L60AQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L60AQ-7 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 SMF4L60AQ-7 reliable?
The price and inventory of SMF4L60AQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L60AQ-7 is usually 5 days.
3.What payment methods are accepted for SMF4L60AQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L60AQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L60AQ-7?
SMF4L60AQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L60AQ-7 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 SMF4L60AQ-7?
For technical support, including SMF4L60AQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L60AQ-7 requirements.
6.How does Aetrix verify that SMF4L60AQ-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L60AQ-7 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 SMF4L60AQ-7 meets industry standards.
7.What is the process for return or replacement of SMF4L60AQ-7?
All SMF4L60AQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L60AQ-7, 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 SMF4L60AQ-7 part is unused and in its original packaging.
Return procedure for SMF4L60AQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L60AQ-7 Tags
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