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Vishay General Semiconductor - Diodes Division SMF54A-M3-08
- Part No.:
- SMF54A-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF54A-M3-08.pdf
- Description:
- TVS DIODE 54VWM 88VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:2,736
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Product details
Overview
SMF54A-M3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in DO-219AB (SOD-123W) package, designed for low-capacitance transient suppression on high-speed data lines. It features a 54 V stand-off voltage (VRWM), 60–66 V reverse breakdown (VBR), 88 V maximum clamping voltage at 2.25 A peak pulse current (IPPM), 148 pF typical capacitance at 0 V, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF54A-M3-08 datasheet, SMF54A-M3-08 pinout, SMF54A-M3-08 application, or SMF54A-M3-08 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under 10/1000 μs surge, thermal resistance (180 K/W), and AEC-Q101 qualification status to support robust interface protection design and component selection.
Technical Context
This device operates as a single-channel unidirectional TVS diode with avalanche breakdown mechanism, optimized for fast response (<1 ns) and low clamping ratio (VC/VBR ≈ 1.33). Its 148 pF capacitance at 0 V and <0.1 μA leakage at VRWM enable use on 480 Mbps USB 2.0 differential pairs without signal integrity degradation.
The DO-219AB package supports wave and reflow soldering per J-STD-020 MSL level 1, with 1.08 mm max height and 3.9 × 1.9 mm footprint - enabling dense PCB layouts in space-constrained automotive infotainment and industrial HMI modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 54 V - maximum continuous reverse operating voltage before significant leakage; defines safe operating margin for 48 V nominal industrial bus lines. |
| Reverse Breakdown (VBR) | 60–66 V at 1 mA - precise avalanche onset range ensures predictable turn-on during transients without premature conduction. |
| Clamping Voltage (VC) | 88 V at IPPM = 2.25 A (10/1000 μs) - limits downstream IC stress to safe levels during ESD or surge events. |
| Capacitance (CD) | 148 pF at 0 V, 1 MHz - low enough for USB 2.0 full-speed operation; measured across anode-cathode terminals. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for consumer and automotive ECUs. |
| Peak Pulse Power | 200 W at 10/1000 μs - sustains short-duration surges common in hot-plug and cable discharge scenarios. |
| Thermal Resistance | 180 K/W (RthJA, 3 mm × 3 mm Cu pads) - enables reliable power dissipation in compact PCB layouts without forced cooling. |
Pinout & Package
SMF54A-M3-08 uses the DO-219AB (SOD-123W) surface-mount package: 3.9 mm length × 1.9 mm width × 1.08 mm height, cathode marked by bar on top surface. Compatible with standard SOD-123F/FL footprints and reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to protected line (e.g., USB D+); conducts during negative transients relative to cathode. |
| Cathode | Clamping return path | Connected to system ground or low-impedance reference plane; carries full surge current during positive ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| Low-clamp architecture | 88 V VC at 2.25 A ensures <100 V stress on downstream 100 V-rated interface ICs during worst-case 10/1000 μs surges. |
| "Low Noise" fast response | <1 ns turn-on time minimizes voltage overshoot during sub-nanosecond ESD pulses, preserving signal fidelity on high-speed buses. |
| AEC-Q101 qualified | Qualified for automotive applications including infotainment displays and body control modules requiring extended temperature reliability (-65 °C to +175 °C). |
| Reflow/wave solder compatible | MSL level 1 rating and 260 °C peak reflow tolerance allow integration into standard automated assembly lines without baking or special handling. |
| Low-profile DO-219AB | 1.08 mm max height enables placement under connectors or beneath shields in ultra-thin industrial handheld devices. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD from human contact or cable discharge. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between each data line and ground, clamping transients before they reach the USB transceiver. Use Value: 148 pF capacitance avoids signal rise-time degradation at 480 Mbps; ±30 kV ESD rating meets IEC 61000-4-2 Level 4 compliance. |
Use Scenario: Safeguarding TMDS clock and data channels in HDMI 1.4 receivers against hot-plug and ESD events. IC Role / Device Role / Timing Role: Single-channel unidirectional clamp on each TMDS pair, referenced to chassis ground to suppress common-mode surges. Use Value: 54 V VRWM accommodates HDMI's 3.3 V supply with sufficient margin; 88 V VC prevents latch-up in HDMI PHY ICs. |
| Industrial Sensor Interface | Automotive Infotainment Display |
Use Scenario: Shielding analog and digital I/O lines of pressure/temperature sensors connected to PLCs or RTUs in factory environments. IC Role / Device Role / Timing Role: Point-of-entry protection on 24 V sensor supply and RS-485/UART lines, mounted adjacent to connectors. Use Value: 200 W peak pulse power handles induced surges from nearby motor switching; -65 °C to +175 °C operating range supports harsh ambient conditions. |
Use Scenario: ESD hardening of touch controller and display data lines in automotive center-stack displays exposed to passenger interaction. IC Role / Device Role / Timing Role: Unidirectional clamp on MIPI DSI lanes and I²C control lines, placed directly at FPC connector entry points. Use Value: AEC-Q101 qualification ensures reliability over vehicle lifetime; 1.08 mm height allows routing under display flex cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54A-E3/57T | DO-214AC (SMA) package; 1.8 mm height; 200 W Pppm; 93.6 V VC at 2.25 A; 170 pF capacitance. | Higher profile and capacitance limit use on >100 Mbps interfaces; better suited for power rail protection than high-speed data. | Select SMAJ54A-E3/57T when board space permits larger footprint and lower-frequency signal paths dominate. |
| TPD2E007DRYR | 0.65 mm × 0.65 mm DSBGA; dual-channel; 5.5 V VRWM; 12 V VC; 3.5 pF; integrated ESD array for I/O banks. | Designed for low-voltage logic-level protection (e.g., GPIO, SDIO), not 54 V stand-off; incompatible with industrial 24/48 V systems. | Choose TPD2E007DRYR only for sub-6 V digital I/O protection where ultra-low capacitance is critical and voltage rating matches. |
Compared with SMAJ54A-E3/57T and TPD2E007DRYR, SMF54A-M3-08 uniquely balances 54 V stand-off, 148 pF capacitance, and DO-219AB low-profile packaging - making it optimal for mid-voltage, high-speed interface protection where space and signal integrity are jointly constrained.
Availability
SMF54A-M3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line hardening, and industrial sensor I/O safeguarding requiring stable component supply across automotive, industrial automation, and medical device programs.
Supply support for SMF54A-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 data line protection with AEC-Q101 qualification, low capacitance, and tight clamping - engineered specifically for ESD-hardened interfaces in automotive infotainment, industrial HMIs, and portable instrumentation.
FAQ
What is the maximum clamping voltage of SMF54A-M3-08 under standard surge conditions?
The SMF54A-M3-08 exhibits a maximum reverse clamping voltage (VC) of 88 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPPM) of 2.25 A. This value is specified in the Electrical Characteristics table of Vishay's document 85881 Rev. 2.4 and reflects worst-case voltage seen by downstream circuitry during standardized surge testing - critical for ensuring compatibility with 100 V-rated interface ICs.
Is SMF54A-M3-08 qualified for automotive applications?
Yes, SMF54A-M3-08 is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. The qualification covers temperature cycling, humidity testing, and ESD robustness per human body model (>8 kV) and IEC 61000-4-2 (±30 kV contact/air), supporting deployment in infotainment displays, body control modules, and ADAS sensor interfaces where long-term reliability under thermal stress is mandatory.
What package type does SMF54A-M3-08 use, and what are its key mechanical dimensions?
SMF54A-M3-08 uses the DO-219AB (SOD-123W) surface-mount package, measuring 3.9 mm in length, 1.9 mm in width, and 1.08 mm in maximum height. Its cathode is marked by a bar on the top surface, and it complies with JEDEC standards for reflow soldering (peak 260 °C, MSL level 1), enabling direct integration into high-volume automated PCB assembly processes without special handling.
How does the 148 pF capacitance of SMF54A-M3-08 impact high-speed signal integrity?
The 148 pF typical capacitance of SMF54A-M3-08 at 0 V and 1 MHz is carefully balanced to provide effective ESD suppression while maintaining signal integrity on moderate-speed interfaces like USB 2.0 (480 Mbps) and HDMI 1.4 TMDS channels. It introduces minimal rise-time degradation and insertion loss - validated in Vishay's application guidance - making it unsuitable for PCIe Gen3+ or USB 3.2 but well-matched for full-speed and high-speed data links with ≤500 Mbps bandwidth.
What is the leakage current specification for SMF54A-M3-08 at its rated stand-off voltage?
At its maximum stand-off voltage of 54 V (VRWM), SMF54A-M3-08 specifies a maximum reverse leakage current (IR) of 0.1 μA at 25 °C. This ultra-low leakage ensures negligible DC loading on protected lines - essential for battery-powered sensor nodes and high-impedance analog inputs - and remains stable across its full operating temperature range of -65 °C to +175 °C.
SMF54A-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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 88V
- Current - Peak Pulse (10/1000µs):
- 2.25A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 148pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF54A-M3-08 FAQ
1.How can I place an order for SMF54A-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF54A-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 SMF54A-M3-08 reliable?
The price and inventory of SMF54A-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 SMF54A-M3-08 is usually 5 days.
3.What payment methods are accepted for SMF54A-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF54A-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF54A-M3-08?
SMF54A-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF54A-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 SMF54A-M3-08?
For technical support, including SMF54A-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF54A-M3-08 requirements.
6.How does Aetrix verify that SMF54A-M3-08 is sourced from the original manufacturer or authorized distributors?
All SMF54A-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 SMF54A-M3-08 meets industry standards.
7.What is the process for return or replacement of SMF54A-M3-08?
All SMF54A-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF54A-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 SMF54A-M3-08 part is unused and in its original packaging.
Return procedure for SMF54A-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF54A-M3-08 Tags
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