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Diodes Incorporated SMF4L200CA-7
- Part No.:
- SMF4L200CA-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-219AA
- Datasheet:
-
SMF4L200CA-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:9,840
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Product details
Overview
SMF4L200CA-7 from Diodes Incorporated is a bi-directional transient voltage suppressor (TVS) diode in DO-219AA package, rated for 200V working peak reverse voltage (VRWM), 224V minimum breakdown voltage (VBR), 324V maximum clamping voltage (VC) at 1.2A surge current, and 400W peak pulse power (10/1000µs). It provides ESD protection per IEC61000-4-2 (±30kV air/contact) and is used for overvoltage protection on battery contacts and automotive power lines.
For engineers reviewing the SMF4L200CA-7 datasheet, SMF4L200CA-7 pinout, SMF4L200CA-7 application, or SMF4L200CA-7 equivalent, key selection criteria include clamping voltage margin vs. system rail, bi-directional symmetry for AC-coupled or floating lines, JEDEC-qualified reliability for industrial environments, and DO-219AA footprint compatibility with space-constrained PCB layouts.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical VBR min/max (224V/248V) and VC (324V) under 1.2A 10/1000µs surge. Its fast response time (<5.0ns from 0V to VBR) ensures suppression before downstream ICs experience overstress.
Thermal design is supported by RθJA = 96°C/W (on 1"×1" FR-4, 2 oz Cu), RθJC = 18°C/W, and DC power dissipation of 1.0W. The device maintains operation from –55°C to +175°C, meeting high-reliability requirements for under-hood automotive and industrial power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 200V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line voltage. |
| VBR (min) | 224V - Minimum breakdown voltage at 1mA test current; defines onset of avalanche conduction during transients. |
| VC @ IRSM | 324V - Clamping voltage at 1.2A peak surge current (10/1000µs); determines worst-case voltage seen by downstream circuitry. |
| PPK | 400W - Peak pulse power handling (10/1000µs waveform); quantifies transient energy absorption capability. |
| IR @ VRWM | 1.2µA - Reverse leakage current at rated VRWM; low value minimizes standby power loss in high-impedance circuits. |
| ESD Rating | ±30kV (air/contact, IEC61000-4-2) - Confirmed immunity to human-body-model ESD events without degradation. |
| Operating Temp | –55°C to +175°C - Extended junction temperature range supports under-hood automotive and industrial deployment. |
Pinout & Package
Package: DO-219AA - Surface-mount, flat lead, bi-directional configuration with no cathode band marking; 1.90mm width × 2.80mm length × 0.60mm height; RoHS-compliant matte tin finish on copper alloy lead frame.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional TVS terminals | No polarity marking; either terminal serves as anode or cathode depending on transient polarity - enables placement on AC or floating lines without orientation concern. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-qualified reliability | Qualified to AEC-Q200 stress test standards for passive components; suitable for automotive-grade production without additional qualification effort. |
| Green compound packaging | Halogen- and antimony-free molding compound (<900ppm Br, <900ppm Cl, <1000ppm Sb); meets global environmental compliance mandates including RoHS 3. |
| Ultra-low leakage | 1.2µA max reverse leakage at 200V VRWM - preserves battery life in always-on systems and avoids false triggering in high-impedance sensing nodes. |
| Sub-5ns response | <5.0ns response time from 0V to VBR - ensures clamping activation prior to propagation of fast-rising ESD or load-dump transients into sensitive circuitry. |
Applications
| Battery Protection Circuit | Automotive Power Line |
|---|---|
Use Scenario: Protection of lithium-ion battery packs against ESD events during hot-plug insertion or connector mating. IC Role / Device Role / Timing Role: Bi-directional TVS placed directly across battery terminals to clamp ±30kV ESD pulses before reaching fuel gauge ICs or protection FETs. Use Value: Prevents latch-up or gate oxide damage in battery management ICs by limiting transient voltage to ≤324V while maintaining <1.2µA standby leakage. |
Use Scenario: Suppression of load-dump and jump-start transients on 12V/24V automotive power rails (e.g., infotainment head units). IC Role / Device Role / Timing Role: Primary front-end TVS on main power input, coordinated with upstream fuse and downstream DC-DC converter. Use Value: Absorbs 400W peak energy from ISO 7637-2 Pulse 5a (load dump) without failure, enabling robust operation up to +175°C junction temperature. |
| Industrial Sensor Interface | USB-C Power Delivery Line |
Use Scenario: Overvoltage protection for analog sensor inputs exposed to field wiring in factory automation systems. IC Role / Device Role / Timing Role: Bi-directional TVS on differential signal pairs (e.g., RS-485, CAN FD stubs) to suppress induced surges from nearby motor switching. Use Value: Symmetric clamping ensures equal protection for both signal polarities; 324V VC prevents excursion beyond absolute maximum ratings of precision op-amps or ADC drivers. |
Use Scenario: Secondary-level surge protection on USB-C VBUS lines after primary protection, targeting fast ESD events during cable insertion. IC Role / Device Role / Timing Role: Final-stage TVS between connector and PD controller or buck converter input, sized for 200V VRWM to avoid interference with 20V PD negotiation. Use Value: ±30kV IEC61000-4-2 rating ensures compliance with USB-IF ESD test plans; DO-219AA footprint allows placement within tight 2.0mm board-to-connector spacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200CA | DO-214AC package; higher RθJA (125°C/W); 344V VC @ 1.2A; same VRWM/VBR range. | Larger footprint (4.5mm × 2.7mm vs. 2.8mm × 1.9mm); less suitable for ultra-dense layouts. | Select when legacy DO-214AC tooling exists or thermal derating margin is available. |
| TPSMD200C | DO-214AB package; 330V VC @ 1.2A; 1.5µA IR @ VRWM; not AEC-Q200 qualified. | Higher leakage impacts battery-powered IoT sensors; lacks automotive qualification documentation. | Select only for cost-sensitive consumer applications where AEC-Q200 and low-leakage are non-critical. |
Compared with SMAJ200CA and TPSMD200C, SMF4L200CA-7 delivers superior board-area efficiency (35% smaller footprint), lower thermal resistance (96°C/W vs. ≥125°C/W), and documented AEC-Q200 compliance - making it optimal for next-generation automotive ECUs and compact industrial modules requiring validated reliability.
Availability
SMF4L200CA-7 is available at Aetrix Electronics and suitable for automotive power line protection, battery contact ESD hardening, and industrial sensor interface surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMF4L200CA-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, industrial, and computing markets.
The SMF4L series belongs to Diodes' high-power surface-mount TVS portfolio, engineered specifically for space-constrained, high-surge industrial and automotive applications demanding JEDEC-qualified robustness and green material compliance.
FAQ
Is SMF4L200CA-7 unidirectional or bidirectional?
SMF4L200CA-7 is a bi-directional TVS diode, confirmed by its "CA" suffix, absence of cathode band marking, and symmetrical electrical characteristics (identical VBR min/max and VC for both polarities). It clamps transients of either polarity equally, making it suitable for AC-coupled or floating signal/power lines.
What is the maximum clamping voltage at 1.2A surge current?
The maximum clamping voltage (VC) for SMF4L200CA-7 is 324V at 1.2A peak reverse surge current under the standard 10/1000µs waveform. This value is measured per JEDEC test conditions and represents the worst-case voltage imposed on protected circuitry during a full-rated transient event.
Does SMF4L200CA-7 meet automotive qualification standards?
Yes - SMF4L200CA-7 is qualified to AEC-Q200 for passive components and manufactured in IATF 16949-certified facilities. While not labeled with a Q-suffix, its qualification status is explicitly stated in the datasheet (DS43394 Rev. 3-2) under "High Reliability" and "automotive applications requiring specific change control."
How does the DO-219AA package compare thermally to DO-214AC?
The DO-219AA package offers RθJA = 96°C/W (on 1"×1" FR-4, 2 oz Cu), significantly lower than DO-214AC's typical 125°C/W. This 23% improvement in thermal resistance enables higher sustained power handling or extended lifetime in high-ambient-temperature environments such as engine compartments.
SMF4L200CA-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):
- 200V
- Voltage - Breakdown (Min):
- 224V
- Voltage - Clamping (Max) @ Ipp:
- 324V
- Current - Peak Pulse (10/1000µs):
- 1.2A
- 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
SMF4L200CA-7 FAQ
1.How can I place an order for SMF4L200CA-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF4L200CA-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 SMF4L200CA-7 reliable?
The price and inventory of SMF4L200CA-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF4L200CA-7 is usually 5 days.
3.What payment methods are accepted for SMF4L200CA-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF4L200CA-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF4L200CA-7?
SMF4L200CA-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF4L200CA-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 SMF4L200CA-7?
For technical support, including SMF4L200CA-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF4L200CA-7 requirements.
6.How does Aetrix verify that SMF4L200CA-7 is sourced from the original manufacturer or authorized distributors?
All SMF4L200CA-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 SMF4L200CA-7 meets industry standards.
7.What is the process for return or replacement of SMF4L200CA-7?
All SMF4L200CA-7 units undergo pre-shipment inspection (PSI). If there is an issue with SMF4L200CA-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 SMF4L200CA-7 part is unused and in its original packaging.
Return procedure for SMF4L200CA-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF4L200CA-7 Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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