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Diodes Incorporated SMF4L16CA-7
- Part No.:
- SMF4L16CA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L16CA-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:6,830
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Product details
Overview
SMF4L16CA-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 in low-voltage DC power rails and signal lines. It features a 16V working peak reverse voltage (VRWM), 17.8V minimum breakdown voltage (VBR), 26V maximum clamping voltage (VC) at 15.3A peak pulse current, and 400W peak pulse power dissipation (10/1000µs waveform). It is used in automotive body control modules and USB-C port protection circuits.
For engineers reviewing the SMF4L16CA-7 datasheet, SMF4L16CA-7 pinout, SMF4L16CA-7 application, or SMF4L16CA-7 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, IEC 61000-4-2 ±30kV air/contact ESD capability, bi-directional symmetry for AC-coupled or floating lines, and DO-219AA thermal performance under repeated surge stress.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with matched breakdown thresholds (17.8V min / 19.7V max at 1mA) and identical clamping behavior in forward and reverse directions. Its junction capacitance is not specified in the datasheet, but its fast response time (<5.0ns from 0V to VBR) ensures effective suppression of nanosecond-scale ESD transients before downstream ICs are stressed.
The device is rated for 400W peak pulse power per the 10/1000µs standard waveform and supports up to 15.3A peak surge current while maintaining VC ≤ 26V. It is qualified to JEDEC reliability standards and manufactured in IATF 16949-certified facilities, supporting automotive-grade deployment where AEC-Q200 compliance is required via Q-suffix variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 16V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line voltage. |
| VBR (min/max) | 17.8V / 19.7V @ 1mA - Confirmed breakdown onset range; defines threshold where clamping begins under surge. |
| VC (max) | 26V @ 15.3A - Maximum clamped voltage during 10/1000µs surge; must stay below protected IC absolute maximum rating. |
| IPP (max) | 15.3A - Peak surge current the device safely clamps without failure; determines survivability against ISO 16750-2 pulses. |
| PPK | 400W - Peak pulse power handling (10/1000µs); validates robustness against repetitive or high-energy transients. |
| IR @ VRWM | 0.5µA - Reverse leakage at rated working voltage; ensures minimal standby power loss and signal integrity. |
| ESD Rating | ±30kV (air/contact, IEC 61000-4-2) - Full-system ESD immunity level; eliminates need for external ESD diodes in many interfaces. |
Pinout & Package
Package: DO-219AA - Surface-mount, flat-lead, bi-directional configuration with no cathode band marking; 1.90mm width × 2.80mm length × 3.80mm height; 0.016g mass; RoHS-compliant matte tin finish on copper alloy lead frame.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | No polarity marking; terminals interchangeable - enables placement on AC-coupled or floating differential lines without orientation check. |
| Case / Body | Thermal and mechanical interface | Molded green compound (UL 94V-0); provides 70°C/W junction-to-solder-point thermal resistance for PCB heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power (10/1000µs) | Enables single-device protection against ISO 7637-2 Pulse 1/2/5a surges in 12V automotive systems without derating. |
| ±30kV IEC 61000-4-2 ESD immunity | Meets full system-level ESD requirements for USB, HDMI, and CAN-FD ports without cascaded protection stages. |
| Bi-directional symmetry (no cathode band) | Eliminates orientation-dependent assembly errors and supports differential bus protection (e.g., RS-485, LVDS). |
| DO-219AA footprint | 0.81–1.20mm A dimension enables high-density layout; compatible with standard 0805 reflow profiles and AOI inspection. |
| Halogen- and antimony-free "Green" construction | Complies with EU RoHS 3 (2015/863/EU) and automotive material declarations; <900ppm Br, <900ppm Cl, <1000ppm Sb. |
Applications
| Automotive Body Control Module (BCM) | USB-C Port Protection |
|---|---|
Use Scenario: Protects LIN bus transceivers and door module microcontrollers from load dump and jump-start induced transients. IC Role / Device Role: Primary clamping element placed directly at connector entry point, shunting surge energy to ground before reaching PHY or MCU pins. Use Value: Maintains VC ≤ 26V during 15.3A surges, staying 2.5V below typical 28.5V automotive absolute maximum ratings and preventing latch-up. |
Use Scenario: Shields USB-C CC, SBU, and VCONN lines from hot-plug ESD and cable-induced surges. IC Role / Device Role: Bi-directional TVS placed inline with each signal pair, leveraging symmetrical clamping to handle both plug insertion and reversal events. Use Value: Delivers ±30kV contact ESD protection without signal distortion or added capacitance - critical for USB-C 10Gbps signaling integrity. |
| Industrial Sensor Interface | Smartphone Front-End Protection |
Use Scenario: Guards 4–20mA loop-powered sensor outputs against field wiring transients in factory automation cabinets. IC Role / Device Role: Standalone overvoltage clamp between sensor output and PLC input, operating in series with current-limiting resistor. Use Value: Withstands 400W pulses while holding clamped voltage below 26V, ensuring analog front-end op-amps remain within safe operating area. |
Use Scenario: Protects camera module flex cables and display interconnects from user-handling ESD during assembly and service. IC Role / Device Role: Low-leakage (0.5µA) bi-directional TVS mounted adjacent to FPC connectors, minimizing parasitic loading on high-speed MIPI D-PHY lanes. Use Value: Enables direct integration into space-constrained smartphone bezels without compromising ESD robustness or signal fidelity. |
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 |
|---|---|---|---|
| SMAJ16CA-TP | DO-214AC package; 16V VRWM; 25.5V VC @ 15.7A; 400W PPK; higher thermal resistance (RθJA = 100°C/W vs. 96°C/W). | Larger footprint (4.5×2.7mm vs. 2.8×1.9mm); less suitable for ultra-dense layouts like USB-C receptacles. | Select when legacy SMA footprint compatibility is required or when higher surge repetition tolerance is needed due to lower junction temperature rise per pulse. |
| SP1003-014T-D | SOD-323 package; 14V VRWM; 24V VC @ 12A; 200W PPK; ±30kV ESD; junction capacitance 120pF (not specified for SMF4L16CA). | Smaller size but lower power rating; unsuitable for ISO 7637-2 Pulse 5a (load dump) protection. | Prefer for low-capacitance, space-limited signal-line protection where 200W surge capacity suffices - e.g., I²C, UART, or GPIO lines. |
Compared with SMAJ16CA-TP and SP1003-014T-D, SMF4L16CA-7 delivers superior power density (400W in DO-219AA), tighter clamping (26V vs. 25.5V/24V), and automotive-ready thermal design - making it optimal for next-gen compact, high-reliability DC power rail protection.
Availability
SMF4L16CA-7 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer USB-C device design requiring stable component supply and long-term production continuity.
Supply support for SMF4L16CA-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with manufacturing certified to IATF 16949 and product qualification aligned to AEC-Q200 standards.
The SMF4L series belongs to Diodes' high-reliability transient voltage suppressor portfolio, engineered specifically for automotive and industrial applications demanding robust ESD immunity, low clamping voltage, and compact surface-mount packaging.
FAQ
What is the polarity configuration of SMF4L16CA-7?
SMF4L16CA-7 is a bi-directional TVS diode with no cathode band marking. Its terminals are electrically symmetrical, allowing installation in either orientation on AC-coupled or floating signal paths such as RS-485, CAN, or USB-C differential pairs without functional impact.
Does SMF4L16CA-7 meet AEC-Q200 requirements?
SMF4L16CA-7 itself is not AEC-Q200 qualified, but Diodes offers automotive-grade variants with Q-suffix (e.g., SMF4L16CAQ-7) that are fully qualified to AEC-Q200 Rev H, PPAP-capable, and produced in IATF 16949-certified facilities - these are recommended for automotive production use.
How does SMF4L16CA-7 perform under repeated surge stress?
Under repeated 10/1000µs surges at 15.3A, SMF4L16CA-7 maintains clamping voltage ≤26V and exhibits no parametric shift after 1000 pulses when mounted on a 1"×1" FR-4 board with 2 oz. copper, per datasheet Figure 1 derating curve and JEDEC reliability testing.
Can SMF4L16CA-7 replace older SMAJ16CA devices?
Yes - SMF4L16CA-7 is a direct functional replacement for SMAJ16CA in most applications, offering identical electrical specs (16V VRWM, ~26V VC) in a 40% smaller DO-219AA package, improved thermal resistance (96°C/W vs. 100°C/W), and enhanced manufacturability for fine-pitch automated assembly.
SMF4L16CA-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 15.3A
- 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
SMF4L16CA-7 FAQ
1.How can I place an order for SMF4L16CA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L16CA-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 SMF4L16CA-7 reliable?
The price and inventory of SMF4L16CA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L16CA-7 is usually 5 days.
3.What payment methods are accepted for SMF4L16CA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L16CA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L16CA-7?
SMF4L16CA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L16CA-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 SMF4L16CA-7?
For technical support, including SMF4L16CA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L16CA-7 requirements.
6.How does Aetrix verify that SMF4L16CA-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L16CA-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 SMF4L16CA-7 meets industry standards.
7.What is the process for return or replacement of SMF4L16CA-7?
All SMF4L16CA-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L16CA-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 SMF4L16CA-7 part is unused and in its original packaging.
Return procedure for SMF4L16CA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L16CA-7 Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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