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Vishay General Semiconductor - Diodes Division SMF13A-M3-08
- Part No.:
- SMF13A-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF13A-M3-08.pdf
- Description:
- TVS DIODE 13VWM 21.5VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:6,498
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Product details
Overview
SMF13A-M3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient voltage suppression in high-speed data lines. It features a 13 V standoff voltage (VRWM), 21.5 V maximum clamping voltage at 9.3 A peak pulse current, 423 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMF13A-M3-08 datasheet, SMF13A-M3-08 pinout, SMF13A-M3-08 application, or SMF13A-M3-08 equivalent, this device is selected for USB 2.0, HDMI, automotive infotainment interfaces, and industrial sensor I/O where fast response (<1 ns), low clamping, and robust ESD survivability are required.
Technical Context
The SMF13A-M3-08 operates as a unidirectional TVS diode with avalanche breakdown behavior, optimized for clamping transients on positive-going signal lines referenced to ground. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 μs surges up to 9.3 A, while its "Low Noise" silicon process delivers sub-nanosecond response time.
It is rated for 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and supports continuous operation from −65 °C to +175 °C. The device meets AEC-Q101 stress tests including H3B-class human body model (>8 kV) and full IEC 61000-4-2 contact/air discharge compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 13 V - Maximum continuous reverse operating voltage before significant leakage; sets minimum signal swing margin for protected line. |
| Clamping Voltage (VC) | 21.5 V max at IPPM = 9.3 A - Peak voltage seen by downstream circuit during worst-case 10/1000 μs surge; defines safe overvoltage ceiling. |
| Capacitance (CD) | 423 pF at 0 V, 1 MHz - Low enough for USB 2.0 (480 Mbps) and CAN FD without signal integrity degradation. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Full immunity to worst-case handheld ESD events in automotive and industrial environments. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated reflow assembly. |
| AEC-Q101 Qualified | Yes - Validated for automotive underhood and cabin applications requiring extended temperature reliability and lifetime stability. |
| Peak Pulse Power | 200 W (10/1000 μs) - Sustains repeated low-duty-cycle surges common in LIN, CAN, and sensor bus interfaces. |
Pinout & Package
SMF13A-M3-08 uses the DO-219AB (SMF) package: a 2-terminal, cathode-marked, surface-mount plastic case with gull-wing leads. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. Compatible with SOD-123W footprint and reflow soldering (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Signal input / line side | Connected to protected trace; conducts during negative transients (if bidirectional variant used) - not active in unidirectional SMF13A-M3-08. |
| Cathode (bar-marked end) | Ground reference / clamp node | Connected to system ground; provides low-impedance path to shunt positive ESD/surge energy away from IC pins. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable protection against IEC 61000-4-5 surge events in industrial control I/O without derating at elevated ambient temperatures. |
| ±30 kV IEC 61000-4-2 ESD immunity | Eliminates need for secondary board-level ESD mitigation on exposed ports like USB-C or diagnostic connectors in automotive ECUs. |
| 423 pF capacitance at 0 V | Preserves signal rise/fall times in 480 Mbps USB 2.0 and 1 Mbps CAN networks; avoids jitter or bit errors in timing-critical links. |
| AEC-Q101 qualification | Validates long-term parametric stability and failure rate under thermal cycling, humidity, and mechanical shock conditions required for automotive Tier-1 supply. |
| DO-219AB low-profile package | Reduces board space by >30% vs. SMA packages while maintaining thermal performance via 180 K/W junction-to-ambient resistance on standard FR-4. |
Applications
| USB 2.0 Data Lines | Automotive LIN Bus |
|---|---|
Use Scenario: Protecting D+ and D− traces on USB 2.0 host/device ports from user-hand ESD and cable-induced transients. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between signal line and chassis ground, operating in reverse-bias standby mode until transient exceeds VRWM. Use Value: 423 pF capacitance avoids signal distortion at 480 Mbps; 21.5 V clamping prevents damage to USB PHY transceivers rated for ≤24 V absolute maximum. | Use Scenario: Safeguarding LIN transceiver pins (e.g., TJA1020) against load dump coupling and ESD in body control modules. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected from LIN bus to ground, absorbing 10/1000 μs surges up to 9.3 A while holding line voltage below transceiver damage threshold. Use Value: AEC-Q101 qualification ensures survival across -40 °C to +125 °C ambient; 13 V VRWM matches LIN's 12 V nominal supply with adequate margin. |
| Industrial Sensor I/O | Automotive Infotainment Display Interface |
Use Scenario: Shielding analog/digital sensor outputs (e.g., pressure, temperature) routed through long cables in factory automation cabinets. IC Role / Device Role / Timing Role: Transient voltage suppressor on each sensor channel, clamping induced lightning-induced surges before they reach ADC inputs or microcontroller GPIOs. Use Value: 200 W pulse rating handles repetitive 10/1000 μs transients from relay switching; low leakage (<0.1 μA at 13 V) avoids DC offset errors in precision analog paths. | Use Scenario: Protecting LVDS or FPD-Link III video data lanes between head unit and TFT display in vehicles. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on differential pairs, placed adjacent to connector to minimize stub length and preserve impedance continuity. Use Value: Sub-1 ns response time prevents ESD energy from propagating into display timing controller; DO-219AB footprint enables placement within 2 mm of connector pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/57T | Higher clamping voltage (23.2 V), larger SMA package (4.5 mm × 2.7 mm), 500 pF capacitance. | Less suitable for USB 2.0 due to higher capacitance; better for lower-speed RS-485 or power rail protection. | Select SMAJ13A-E3/57T only when board space allows larger footprint and signal bandwidth <100 Mbps. |
| TPD2E001DRYR | Bi-directional dual-channel array (2 × 13 V), 12 pF/channel, 5-pin SC-70 package, integrated ESD protection for high-speed data. | Designed specifically for USB 2.0 D+/D− pairs; requires separate ground connection per channel; not AEC-Q101 qualified. | Choose TPD2E001DRYR for compact dual-line protection where ultra-low capacitance is critical and automotive qualification is not required. |
Compared with SMAJ13A-E3/57T and TPD2E001DRYR, SMF13A-M3-08 offers the optimal balance of AEC-Q101 compliance, 423 pF capacitance for USB 2.0, and DO-219AB size-making it preferred for single-line automotive and industrial I/O where qualification and moderate speed coexist.
Availability
SMF13A-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and USB 2.0 peripheral designs requiring stable component supply across multi-year production cycles.
Supply support for SMF13A-M3-08 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMF series targets high-speed interface protection with AEC-Q101 validation, focusing on ESD robustness, low capacitance, and compact packaging for next-generation automotive and industrial connectivity.
FAQ
What is the maximum clamping voltage of the SMF13A-M3-08 under a 10/1000 μs surge?
The SMF13A-M3-08 has a maximum clamping voltage (VC) of 21.5 V at 9.3 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMF13A-M3-08 maintains this clamping performance across its full operating temperature range of −65 °C to +175 °C.
Is the SMF13A-M3-08 suitable for protecting USB 2.0 data lines?
Yes, the SMF13A-M3-08 is suitable for USB 2.0 data line protection due to its 423 pF typical capacitance at 0 V and 1 MHz, which preserves signal integrity at 480 Mbps without excessive rise-time degradation. Its 13 V standoff voltage aligns with USB voltage margins, and its ±30 kV IEC 61000-4-2 rating covers worst-case human-body ESD. The SMF13A-M3-08 must be placed as close as possible to the USB connector with short, direct ground paths for optimal performance.
Does the SMF13A-M3-08 meet AEC-Q101 requirements for automotive applications?
Yes, the SMF13A-M3-08 is AEC-Q101 qualified, having passed stress tests including human body model (HBM) Class H3B (>8 kV), temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This qualification confirms its suitability for automotive cabin and under-hood applications where reliability across −40 °C to +125 °C ambient and long service life are mandatory. The SMF13A-M3-08 is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What is the package type and footprint compatibility of the SMF13A-M3-08?
The SMF13A-M3-08 uses the DO-219AB (SMF) package: 3.9 mm × 1.9 mm × 1.08 mm with gull-wing terminals and cathode bar marking. It is mechanically and thermally compatible with the SOD-123W footprint, allowing drop-in replacement in existing layouts designed for that outline. The SMF13A-M3-08 supports standard reflow profiles with peak temperature up to 260 °C and is MSL Level 1 compliant per J-STD-020.
How does the SMF13A-M3-08 compare to bidirectional TVS diodes in ESD protection design?
The SMF13A-M3-08 is unidirectional and optimized for clamping positive transients on grounded-signal lines (e.g., USB D+, LIN bus). Unlike bidirectional variants, it exhibits negligible leakage (<0.1 μA at 13 V) and lower capacitance in DC-biased configurations. For AC-coupled or differential lines requiring symmetric protection, a bidirectional part like SMBJ13CA would be needed-but the SMF13A-M3-08 delivers superior performance for single-ended, ground-referenced interfaces where polarity is fixed. Its design eliminates reverse conduction concerns in such topologies.
SMF13A-M3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-219AB
- Series:
- eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 423pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF13A-M3-08 FAQ
1.How can I place an order for SMF13A-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF13A-M3-08 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 SMF13A-M3-08 reliable?
The price and inventory of SMF13A-M3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF13A-M3-08 is usually 5 days.
3.What payment methods are accepted for SMF13A-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF13A-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF13A-M3-08?
SMF13A-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF13A-M3-08 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 SMF13A-M3-08?
For technical support, including SMF13A-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF13A-M3-08 requirements.
6.How does Aetrix verify that SMF13A-M3-08 is sourced from the original manufacturer or authorized distributors?
All SMF13A-M3-08 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 SMF13A-M3-08 meets industry standards.
7.What is the process for return or replacement of SMF13A-M3-08?
All SMF13A-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF13A-M3-08, 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 SMF13A-M3-08 part is unused and in its original packaging.
Return procedure for SMF13A-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF13A-M3-08 Tags
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