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Diodes Incorporated SMF4L60CA-7
- Part No.:
- SMF4L60CA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L60CA-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:7,508
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Product details
Overview
SMF4L60CA-7 from Diodes Incorporated is a bi-directional transient voltage suppressor (TVS) diode in DO-219AA package, designed for high-energy ESD and surge protection on signal and power lines. It features a 60V working peak reverse voltage (VRWM), 66.7V minimum breakdown voltage (VBR), 96.8V maximum clamping voltage (VC) at 4.1A peak pulse current, and 400W peak pulse power dissipation (10/1000µs waveform). It is used in automotive battery contacts and industrial power management interfaces.
For engineers reviewing the SMF4L60CA-7 datasheet, SMF4L60CA-7 pinout, SMF4L60CA-7 application, or SMF4L60CA-7 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, IEC 61000-4-2 ±30kV air/contact ESD capability, bi-directional symmetry for AC-coupled lines, and DO-219AA thermal performance under sustained surge conditions.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical breakdown and clamping characteristics in forward and reverse directions. Its silicon avalanche structure enables sub-nanosecond response to transients, achieving full clamping within <5.0ns from 0V to VBR min.
The device is rated for 400W peak pulse power per 10/1000µs waveform and supports 4.1A maximum peak pulse current (IRSM) at 96.8V clamping. Thermal resistance from junction to soldering point (RθJS) is 70°C/W, enabling reliable operation on standard FR-4 PCBs with 2 oz. copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 60V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line DC bias. |
| VBR (min) | 66.7V - Minimum voltage at which avalanche conduction begins at 1mA test current; defines turn-on threshold consistency. |
| VC (max) | 96.8V - Maximum clamped voltage at 4.1A IRSM; determines worst-case overvoltage seen by downstream circuitry. |
| PPK | 400W - Peak pulse power handling (10/1000µs); quantifies single-event surge energy absorption capacity. |
| ESD Rating | ±30kV (air/contact, IEC 61000-4-2) - Confirmed immunity level for system-level electrostatic discharge testing. |
| IR @ VRWM | 0.5µA - Reverse leakage at rated working voltage; ensures minimal standby power loss and signal integrity. |
| RθJS | 70°C/W - Junction-to-solder-point thermal resistance; enables thermal design on standard PCB layouts without heatsinking. |
Pinout & Package
SMF4L60CA-7 uses the DO-219AA surface-mount package: compact 2.80mm × 1.90mm footprint, 3.80mm height, matte tin-plated copper alloy terminals, and moisture sensitivity level 1. No cathode band marking indicates bi-directional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity assignment required in layout. |
| Case / Body | Thermal path to PCB | Plastic-molded body transfers heat directly to solder joint and underlying copper; no dedicated thermal pad or exposed metal tab. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power (10/1000µs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/3a surges and lightning-induced transients in 12V/24V systems. |
| Bi-directional symmetry | Eliminates orientation constraints during placement; supports AC signal lines (e.g., CAN, RS-485) without polarity concerns. |
| ±30kV IEC 61000-4-2 ESD rating | Meets highest system-level ESD immunity requirements for automotive infotainment and industrial HMI interfaces. |
| DO-219AA low-profile package | Reduces board area by >30% vs. SMA/SMB; maintains thermal performance with RθJS = 70°C/W on standard 2 oz. Cu pads. |
| Halogen- and antimony-free "Green" construction | Complies with JEDEC J-STD-020 MSL Level 1 and RoHS 3 (2015/863/EU); supports automotive PPAP and IATF 16949 traceability. |
Applications
| Automotive Battery Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protection of 12V/24V battery feed lines against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontroller power rails. Use Value: Limits transient voltage to ≤96.8V during 4.1A surges, preventing damage to 36V-rated input stages in PMICs and MCU regulators. |
Use Scenario: ESD and surge protection on differential CAN_H/CAN_L bus lines in factory automation nodes. IC Role / Device Role / Timing Role: Bi-directional shunt clamp placed across differential pair, referenced to ground via low-inductance layout. Use Value: Maintains signal integrity with <5ns response and symmetrical clamping, ensuring CAN FD bit timing remains unaffected during ±30kV contact discharge. |
| USB Type-C Power Delivery | Smart Meter Communication Ports |
|
Use Scenario: Overvoltage protection on VBUS and CC lines in USB PD sink applications subject to hot-plug and cable coupling events. IC Role / Device Role / Timing Role: Secondary protection stage after primary fuse, absorbing residual energy missed by upstream filters. Use Value: Withstands repeated ±30kV ESD strikes without parameter shift, preserving USB PD negotiation reliability over product lifetime. |
Use Scenario: Surge protection on RS-485/MBus ports of utility smart meters exposed to outdoor lightning-induced surges. IC Role / Device Role / Timing Role: Line-to-ground clamp on each data line, coordinated with GDT or MOV primary protection. Use Value: Delivers 400W pulse handling in compact DO-219AA form factor, enabling dual-line protection within tight meter housing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60CA | Same VRWM (60V) and VC (96.8V), but SMA package (larger footprint, RθJA = 96°C/W vs. DO-219AA's 70°C/W). | Less suitable for space-constrained automotive modules; higher thermal impedance limits sustained surge duty cycle. | Select when legacy SMA footprint compatibility is required and board area is not constrained. |
| TPSMD60CA | Higher PPK (600W), same DO-219AB package (slightly taller), but 1.5× higher IR (0.75µA) and no AEC-Q200 qualification. | Not approved for automotive use; better for industrial surge-only applications where ESD rating is secondary. | Select only for non-automotive designs requiring higher single-pulse energy absorption and where ±30kV ESD is not mandated. |
Compared with SMAJ60CA and TPSMD60CA, SMF4L60CA-7 uniquely balances ultra-compact DO-219AA packaging, automotive-grade thermal performance (RθJS = 70°C/W), and certified ±30kV IEC 61000-4-2 ESD immunity-making it optimal for next-generation automotive ECUs and space-limited industrial gateways.
Availability
SMF4L60CA-7 is available at Aetrix Electronics and suitable for automotive battery management, industrial CAN bus nodes, USB Type-C power delivery systems, and smart meter communication ports requiring stable component supply across multi-year production cycles.
Supply support for SMF4L60CA-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.
The SMF4L series belongs to Diodes' high-reliability transient suppression portfolio, engineered specifically for AEC-Q200-compliant automotive and industrial applications demanding consistent clamping performance, low leakage, and long-term stability under thermal cycling.
FAQ
What is the maximum clamping voltage of SMF4L60CA-7 at its rated peak pulse current?
The maximum clamping voltage (VC) is 96.8V at 4.1A peak pulse current (IRSM), measured per the 10/1000µs waveform defined in IEC 61000-4-5. This value is guaranteed across the full operating temperature range of –55°C to +175°C and represents the worst-case overvoltage imposed on protected circuitry during a standardized surge event.
Is SMF4L60CA-7 qualified for automotive applications?
Yes - SMF4L60CA-7 is manufactured in IATF 16949-certified facilities and meets AEC-Q200 stress test requirements for passive components. It is explicitly listed in Diodes' automotive-grade product catalog and supports PPAP documentation for Tier 1 automotive suppliers.
How does the DO-219AA package improve thermal performance compared to SMA?
The DO-219AA package achieves RθJS = 70°C/W versus SMA's typical RθJA = 96°C/W due to optimized internal leadframe geometry and direct die-to-solder-joint thermal path. This allows 25% higher sustained surge duty cycle on identical PCB layouts and eliminates need for thermal vias in most applications.
Can SMF4L60CA-7 be used in bidirectional signal lines like RS-485?
Yes - its bi-directional construction provides matched breakdown and clamping characteristics in both polarities, making it ideal for differential buses. The absence of a cathode band simplifies layout, and its <5.0ns response ensures signal edges remain undistorted during ESD events up to ±30kV contact discharge.
SMF4L60CA-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:
- -
- Bidirectional Channels:
- 1
- 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
SMF4L60CA-7 FAQ
1.How can I place an order for SMF4L60CA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L60CA-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 SMF4L60CA-7 reliable?
The price and inventory of SMF4L60CA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L60CA-7 is usually 5 days.
3.What payment methods are accepted for SMF4L60CA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L60CA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L60CA-7?
SMF4L60CA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L60CA-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 SMF4L60CA-7?
For technical support, including SMF4L60CA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L60CA-7 requirements.
6.How does Aetrix verify that SMF4L60CA-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L60CA-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 SMF4L60CA-7 meets industry standards.
7.What is the process for return or replacement of SMF4L60CA-7?
All SMF4L60CA-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L60CA-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 SMF4L60CA-7 part is unused and in its original packaging.
Return procedure for SMF4L60CA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L60CA-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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