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Diodes Incorporated SMF4L60A-7
- Part No.:
- SMF4L60A-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L60A-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:4,783
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Product details
Overview
SMF4L60A-7 from Diodes Incorporated is a unidirectional 400W surface-mount transient voltage suppressor (TVS) designed for robust overvoltage protection in DC power rails and signal lines. It features a 60V working peak reverse voltage (VRWM), 66.7–73.7V breakdown range (VBR), 96.8A maximum peak pulse current (IPP), and clamps to ≤96.8V at rated surge, making it suitable for automotive body control modules and industrial sensor interfaces.
For engineers reviewing the SMF4L60A-7 datasheet, SMF4L60A-7 pinout, SMF4L60A-7 application, or SMF4L60A-7 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, unidirectional polarity alignment with DC bias, DO-219AA footprint compatibility, and IEC 61000-4-2 ±30kV ESD compliance for end-equipment certification.
Technical Context
This TVS operates as a silicon avalanche diode with fast response (<1.0ns rise time from 0V to VBR) and low dynamic impedance to limit transient energy before downstream components experience overstress. Its unidirectional configuration enables integration on positively biased lines without reverse conduction during normal operation.
The device delivers 400W peak pulse power (10/1000µs waveform) while maintaining <0.5µA reverse leakage at VRWM and thermal resistance of 96°C/W (junction-to-ambient) on standard FR-4 PCB layout. It is qualified per JEDEC reliability standards and supports automotive-grade change control via Q-suffix variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 60V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit DC bias. |
| VBR (min/max) | 66.7V / 73.7V - Breakdown initiates within this range at 1mA test current; defines onset of protective conduction. |
| VC (max) | 96.8V - Clamping voltage at 96.8A IPP; must remain below absolute maximum rating of downstream ICs. |
| IPP | 96.8A - Peak surge current capability under 10/1000µs waveform; determines survivability against ISO 7637-2 Pulse 1/2a/5a transients. |
| IR @ VRWM | 0.5µA - Reverse leakage at rated standoff; negligible power loss and minimal impact on high-impedance sensing nodes. |
| ESD Rating | ±30kV contact/air (IEC 61000-4-2) - Confirmed immunity level for human-body-model surges in handheld and dashboard-mounted electronics. |
| Package | DO-219AA - 2.8mm × 1.9mm surface-mount outline with cathode band marking; compatible with automated SMT placement and reflow. |
Pinout & Package
DO-219AA package: compact 2-terminal molded plastic case with matte tin-plated copper alloy leads, moisture sensitivity level 1, and UL 94V-0 flammability rating. Cathode band denotes unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lowest potential node; completes conduction path during transient clamp event. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12V rail); blocks reverse current during normal operation and conducts surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power | Enables single-device protection against severe load dump and inductive switching events in 12V automotive systems. |
| Fast response time <1.0ns | Clamps transients before propagation across PCB traces, preserving signal integrity in high-speed interface protection. |
| IEC 61000-4-2 ±30kV ESD rating | Meets stringent electrostatic discharge immunity requirements for infotainment buttons, sensor connectors, and USB ports. |
| Lead-free, halogen-free, RoHS 3 compliant | Supports global environmental compliance and eliminates brominated flame retardants in final assembly. |
| JEDEC-qualified reliability | Validated for high-reliability applications including engine control units and ADAS domain controllers. |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from battery load dump and alternator ripple in door module ECUs. IC Role / Device Role: Unidirectional TVS placed between LIN line and ground, clamping negative-going spikes while blocking reverse conduction during normal 12V bias. Use Value: Prevents latch-up and permanent damage to 5V-tolerant transceivers by limiting transient voltage to ≤96.8V under 96.8A surge. |
Use Scenario: Safeguarding 4–20mA current-loop analog inputs in programmable logic controller (PLC) analog input cards exposed to field wiring surges. IC Role / Device Role: Series-connected unidirectional TVS on loop supply line, absorbing induced lightning-induced transients up to 400W. Use Value: Maintains measurement accuracy by preventing amplifier saturation and enabling recovery within microseconds after surge clearance. |
| USB-C Power Delivery Port | Smart Meter Battery Terminal |
|
Use Scenario: Overvoltage protection on VBUS line of USB-C receptacles handling up to 20V PD negotiation, subject to hot-plug ESD and cable-bounce transients. IC Role / Device Role: Unidirectional TVS tied between VBUS and chassis ground, leveraging low capacitance and fast turn-on to avoid data corruption. Use Value: Achieves ±30kV IEC 61000-4-2 compliance without degrading USB 2.0 signal integrity due to sub-100pF junction capacitance. |
Use Scenario: Guarding primary lithium-thionyl chloride (Li-SOCl₂) battery terminals in AMI smart meters against ESD during field installation and maintenance. IC Role / Device Role: Bidirectional-capable but used unidirectionally across battery + and ground to prevent reverse polarity misconnection damage. Use Value: Limits leakage to 0.5µA at 60V, eliminating measurable self-discharge over 15-year meter lifetime while surviving contact ESD 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 | Same VRWM and VBR range, but SMA package (larger footprint, higher RθJA = 125°C/W) | Less suitable for space-constrained automotive modules; requires larger pad area and derating above 75°C ambient | Select when legacy SMA layout exists and thermal margin exceeds 25°C above SMF4L60A-7's DO-219AA capability |
| TPSMD60A | Higher VC (103V), lower IPP (87.1A), same DO-219AB package (identical footprint but different leadframe) | Marginally lower clamping performance; acceptable only if protected IC has ≥103V abs max rating | Choose only if cost sensitivity outweighs clamping voltage margin and full 400W rating is not required |
Compared with SMAJ60A and TPSMD60A, SMF4L60A-7 offers superior thermal performance (96°C/W vs. 125°C/W), tighter clamping (96.8V vs. 103V), and identical DO-219AA footprint-making it optimal for next-generation automotive and industrial designs demanding miniaturization and robust surge immunity.
Availability
SMF4L60A-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor conditioning, USB-C power delivery systems, and smart utility metering requiring stable component supply and long-term lifecycle support.
Supply support for SMF4L60A-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This part belongs to Diodes' SMF4L series of high-power, low-profile TVS diodes engineered specifically for automotive and industrial applications where space, reliability, and IEC/ISO-compliant surge immunity are critical.
FAQ
What is the polarity configuration of SMF4L60A-7?
SMF4L60A-7 is a unidirectional TVS diode, indicated by the cathode band marking on the DO-219AA package. It conducts only when the cathode is at a higher potential than the anode, making it suitable for protecting positively biased DC lines such as 12V automotive rails or USB VBUS.
Does SMF4L60A-7 meet AEC-Q200 qualification?
No-SMF4L60A-7 is a commercial-grade part qualified to JEDEC reliability standards. For AEC-Q200-compliant versions, Diodes offers the Q-suffix automotive-grade variants (e.g., SMF4L60AQ-7), which undergo additional stress testing and are manufactured in IATF 16949-certified facilities.
What is the recommended PCB pad layout for DO-219AA?
Diodes specifies a pad layout with 1.34mm pad width (X), 4.20mm pad length (X1), and 1.80mm spacing (Y) for optimal solder joint strength and thermal dissipation. The layout supports reflow profiles per J-STD-020 and maintains mechanical robustness under thermal cycling.
Can SMF4L60A-7 be used in bidirectional configurations?
No-it is inherently unidirectional. For bidirectional protection, Diodes offers the SMF4L60CA-7 variant (cathode-band-less, symmetrical breakdown). Using SMF4L60A-7 in reverse-biased mode risks permanent damage due to lack of reverse avalanche capability.
SMF4L60A-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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AA
SMF4L60A-7 FAQ
1.How can I place an order for SMF4L60A-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L60A-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 SMF4L60A-7 reliable?
The price and inventory of SMF4L60A-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L60A-7 is usually 5 days.
3.What payment methods are accepted for SMF4L60A-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L60A-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L60A-7?
SMF4L60A-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L60A-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 SMF4L60A-7?
For technical support, including SMF4L60A-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L60A-7 requirements.
6.How does Aetrix verify that SMF4L60A-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L60A-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 SMF4L60A-7 meets industry standards.
7.What is the process for return or replacement of SMF4L60A-7?
All SMF4L60A-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L60A-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 SMF4L60A-7 part is unused and in its original packaging.
Return procedure for SMF4L60A-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L60A-7 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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