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Vishay General Semiconductor - Diodes Division SMF58A-M3-08
- Part No.:
- SMF58A-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF58A-M3-08.pdf
- Description:
- TVS DIODE 58VWM 95VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:4,896
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Product details
Overview
SMF58A-M3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in DO-219AB (SOD-123W) package, designed for high-energy transient suppression on data and signal lines. It features a 58 V stand-off voltage (VRWM), 64.4–70.8 V reverse breakdown (VBR), 95 V maximum clamping voltage at 2.1 A peak pulse current (IPPM), ±30 kV IEC 61000-4-2 ESD immunity, and 144 pF typical capacitance at 0 V - optimized for automotive infotainment and industrial I/O interfaces.
For engineers reviewing the SMF58A-M3-08 datasheet, SMF58A-M3-08 pinout, SMF58A-M3-08 application, or SMF58A-M3-08 equivalent, key selection criteria include clamping performance under 10/1000 μs surge, low capacitance for high-speed signal integrity, AEC-Q101 qualification status, and compatibility with SOD-123W footprint reflow processes.
Technical Context
This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche technology to clamp transients above VRWM while maintaining low leakage (<0.1 μA at 58 V). Its 1.08 mm height and 3.9 × 1.9 mm footprint support dense PCB layouts in space-constrained automotive and industrial modules.
The SMF58A-M3-08 delivers 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and meets AEC-Q101 stress requirements including H3B-class ESD (>8 kV HBM) and 175 °C junction temperature rating - enabling use in under-hood and control-unit environments where thermal and reliability margins are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 58 V - defines maximum continuous operating voltage before clamping initiates; ensures no interference with 48 V nominal bus systems. |
| Reverse Breakdown (VBR) | 64.4–70.8 V at 1 mA - tight tolerance enables predictable turn-on during fast transients without premature conduction. |
| Clamping Voltage (VC) | 95 V at 2.1 A (10/1000 μs) - limits downstream IC voltage stress during surge events; supports 3.3 V/5 V interface protection. |
| Capacitance (CD) | 144 pF at 0 V, 1 MHz - low enough for USB 2.0 and CAN FD signal lines without significant rise-time degradation. |
| ESD Rating | ±30 kV contact/air (IEC 61000-4-2) - exceeds automotive OEM requirements for touch-panel, sensor, and display port hardening. |
| Package | DO-219AB (SOD-123W) - industry-standard low-profile outline compatible with automated SMT assembly and IPC-7351B land patterns. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
Pinout & Package
SMF58A-M3-08 uses a 2-terminal DO-219AB (SOD-123W) package with cathode-bar marking. The device is unidirectional and polarity-sensitive: anode connects to protected line, cathode to ground reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked side opposite bar) | Input/Protected Line Terminal | Connected to signal or power line requiring ESD/surge protection; conducts during reverse-biased overvoltage events. |
| Cathode (bar-marked end) | Ground Reference Terminal | Must be tied to low-impedance system ground plane; provides return path for clamped surge current with minimal inductance. |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Ratio | VC/VBR ≈ 1.4 - minimizes voltage overshoot across protected ICs during fast transients, reducing risk of latch-up or damage. |
| "Low Noise" Fast Response | Sub-nanosecond turn-on - suppresses ESD pulses before they propagate into sensitive analog or digital receivers. |
| Reflow-Compatible Construction | Rated for peak soldering temperature up to 260 °C - supports lead-free reflow profiles without delamination or parameter shift. |
| High Surge Robustness | 50 A IFSM (8.3 ms half-sine) - withstands repetitive load-dump or inductive switching events in 12/24 V vehicle subsystems. |
| Moisture Sensitivity Level 1 | No dry-pack or baking required - simplifies manufacturing handling and reduces production delays versus MSL 3+ components. |
Applications
| Automotive Infotainment Display Port | Industrial CAN FD Bus Node |
|---|---|
Use Scenario: HDMI or LVDS interface between head unit and TFT display exposed to ESD during service or environmental charging. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed inline between connector and serializer/deserializer IC. Use Value: 144 pF capacitance preserves signal edge rate; 95 V clamping prevents damage to 1.8 V/3.3 V display controller I/O pins during ±30 kV contact discharge. |
Use Scenario: CAN FD transceiver input/output lines in factory automation PLC module subject to cable-induced surges and ESD. IC Role / Device Role / Timing Role: Primary ESD clamp on CANH/CANL differential pair, positioned adjacent to connector per ISO 11898-2 layout guidelines. Use Value: 58 V VRWM accommodates 40 V common-mode noise margin; DO-219AB footprint allows symmetric placement with <2 mm trace length to ground. |
| 48 V DC Power Input Protection | Medical Sensor Interface |
Use Scenario: Input stage of 48 V telecom or e-mobility auxiliary power supply subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary surge limiter downstream of primary GDT or MOV, providing precise clamping for downstream DC-DC controllers. Use Value: 200 W (10/1000 μs) rating handles repeated 12 V/100 ms transients; 175 °C TJ rating ensures stability under sustained ambient heat. |
Use Scenario: Analog front-end of wearable ECG or EEG sensor connected via mini-USB or micro-B port prone to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance ESD guard on VBUS and D+/D− lines, placed within 3 mm of connector per IEC 61000-4-2 layout best practices. Use Value: 144 pF avoids signal distortion on 480 Mbps USB 2.0; ±30 kV air discharge rating covers clinical environment static risks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/57T | DO-214AC (SMA) package; 1.8 mm height; 500 W (10/1000 μs); 104 V VC at 2.2 A; 170 pF capacitance. | Higher clamping voltage and capacitance; less suitable for high-speed data lines but better for higher-energy power rail protection. | Select SMAJ58A-E3/57T when board space allows larger package and clamping voltage margin >104 V is acceptable. |
| TPD2E007DRYR | 0.65 mm × 1.0 mm DSBGA; dual-channel; 5.5 V VRWM; 12 V VC; 3.5 pF; integrated ESD array for USB/MIPI. | Designed for low-voltage, ultra-high-speed interfaces only; not rated for 48 V systems or AEC-Q101. | Choose TPD2E007DRYR only for sub-6 V digital interfaces where ultra-low capacitance is mandatory and automotive qualification is not required. |
Compared with SMAJ58A-E3/57T and TPD2E007DRYR, the SMF58A-M3-08 uniquely balances 58 V system compatibility, 144 pF signal-line suitability, AEC-Q101 qualification, and SOD-123W manufacturability - making it optimal for mid-voltage automotive and industrial data ports where both robustness and layout density matter.
Availability
SMF58A-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial CAN FD nodes, and 48 V power input protection requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for SMF58A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power management, signal conditioning, and protection technologies.
The SMF series belongs to Vishay's eSMP® family of surface-mount TVS diodes, engineered specifically for high-reliability ESD and surge protection in automotive, industrial, and communications equipment where compact size and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the SMF58A-M3-08 under standard test conditions?
The SMF58A-M3-08 has a maximum clamping voltage (VC) of 95 V when subjected to a 10/1000 μs surge current of 2.1 A. This value is measured per IEC 61000-4-5 and ensures downstream circuitry remains below destructive voltage thresholds during transient events. The SMF58A-M3-08 maintains this clamping performance across its full operating temperature range of -65 °C to +175 °C.
Is the SMF58A-M3-08 qualified to AEC-Q101, and what does that qualification cover?
Yes, the SMF58A-M3-08 is AEC-Q101 qualified, covering stress tests including high-temperature operating life, temperature cycling, humidity bias, mechanical shock, and ESD (HBM >8 kV). This qualification confirms suitability for automotive applications such as body control modules and infotainment systems. The SMF58A-M3-08 datasheet revision 2.4 (July 2023) explicitly lists AEC-Q101 compliance in its ordering information table.
What is the capacitance of the SMF58A-M3-08, and how does it affect high-speed signal lines?
The SMF58A-M3-08 exhibits 144 pF typical junction capacitance at 0 V and 1 MHz. This value is low enough to avoid significant signal integrity degradation on USB 2.0, CAN FD, and RS-485 lines while still delivering robust 58 V standoff and 95 V clamping. The SMF58A-M3-08's capacitance remains stable across reverse bias voltages up to VRWM, ensuring consistent performance in dynamic interface environments.
Can the SMF58A-M3-08 be used in bidirectional configurations?
No, the SMF58A-M3-08 is a unidirectional TVS diode and must be used with correct polarity: anode to the protected line, cathode to ground. For bidirectional protection, two SMF58A-M3-08 devices may be connected in series opposing configuration, but Vishay does not specify or characterize that arrangement. The SMF58A-M3-08 datasheet defines electrical parameters exclusively for unidirectional operation.
What is the recommended PCB footprint and soldering profile for the SMF58A-M3-08?
Vishay specifies a DO-219AB (SOD-123W) footprint with 1.3 mm pad width, 2.9 mm pad length, and 1.4 mm center-to-center spacing. Reflow soldering must follow J-STD-020 MSL level 1 guidelines, with peak temperature not exceeding 260 °C. The SMF58A-M3-08's package drawing (S8-V-3915.01-001) provides exact land pattern dimensions and stencil recommendations for optimal thermal and mechanical reliability.
SMF58A-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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 95V
- Current - Peak Pulse (10/1000µs):
- 2.1A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 144pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF58A-M3-08 FAQ
1.How can I place an order for SMF58A-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF58A-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 SMF58A-M3-08 reliable?
The price and inventory of SMF58A-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 SMF58A-M3-08 is usually 5 days.
3.What payment methods are accepted for SMF58A-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF58A-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF58A-M3-08?
SMF58A-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF58A-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 SMF58A-M3-08?
For technical support, including SMF58A-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF58A-M3-08 requirements.
6.How does Aetrix verify that SMF58A-M3-08 is sourced from the original manufacturer or authorized distributors?
All SMF58A-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 SMF58A-M3-08 meets industry standards.
7.What is the process for return or replacement of SMF58A-M3-08?
All SMF58A-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF58A-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 SMF58A-M3-08 part is unused and in its original packaging.
Return procedure for SMF58A-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF58A-M3-08 Tags
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