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Vishay General Semiconductor - Diodes Division SMF58A-E3-08
- Part No.:
- SMF58A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF58A-E3-08.pdf
- Description:
- TVS DIODE 58VWM 95VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:25,718
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Product details
Overview
SMF58A-E3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for robust transient voltage suppression in high-speed data lines. It features a 58 V stand-off voltage (VRWM), 95 A peak pulse current (IPPM) at 10/1000 μs, 95 V maximum clamping voltage (VC), 144 pF typical capacitance at 1 MHz, and ±30 kV IEC 61000-4-2 ESD immunity - deployed in automotive infotainment interfaces and industrial USB-C ports.
For engineers reviewing the SMF58A-E3-08 datasheet, SMF58A-E3-08 pinout, SMF58A-E3-08 application, or SMF58A-E3-08 equivalent, this page delivers verified electrical parameters, package dimensions, real-world use cases, and qualified alternative parts - all aligned with Vishay's Rev. 2.4 (04-Jul-2023) specification for the SMF5V0A–SMF58A family.
Technical Context
This device operates as a single-channel, unidirectional TVS diode optimized for low-capacitance, high-energy surge protection. Its silicon avalanche structure enables sub-nanosecond response to ESD transients, while its DO-219AB footprint supports automated SMT assembly with wave/reflow compatibility and MSL level 1 moisture sensitivity rating.
The SMF58A-E3-08 exhibits a reverse breakdown voltage range of 64.4–70.8 V at 1 mA test current, maintains <0.1 μA leakage at VRWM = 58 V, and sustains 200 W peak pulse power under 10/1000 μs waveform - meeting AEC-Q101 qualification for automotive-grade reliability across -65 °C to +175 °C operating temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 58 V - maximum continuous reverse working voltage before clamping begins; sets operating margin for 48 V nominal bus systems. |
| Clamping Voltage (VC) | 95 V max at IPPM = 95 A - limits downstream IC stress during 10/1000 μs surges; critical for protecting 75 V-rated PHYs. |
| Peak Pulse Current (IPPM) | 95 A at 10/1000 μs - defines surge-handling capacity for lightning-induced or inductive-switching transients. |
| Capacitance (CD) | 144 pF at VR = 0 V, f = 1 MHz - low enough for USB 2.0 (480 Mbps) and CAN FD signal integrity without excessive rise-time degradation. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for exposed connectors and touch surfaces. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated placement. |
| AEC-Q101 Qualified | Yes - validated for automotive applications including H3B-class human body model (>8 kV) and full temperature cycling compliance. |
Pinout & Package
SMF58A-E3-08 uses the DO-219AB (SOD-123W-equivalent) surface-mount package: cathode-marked, single-diode configuration with two terminals. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height; recommended footprint: 2.9 mm × 1.4 mm pad area with 1.3 mm solder mask opening.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Input/Line side | Connected to protected signal line (e.g., USB D+); conducts surge current toward ground during overvoltage events. |
| Cathode (bar-marked end) | Ground reference | Connected to system ground plane; establishes clamping threshold and provides low-impedance path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable protection against long-duration surges common in industrial 24/48 V power rail interfaces. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving clamping precision for sensitive analog inputs. |
| "Low Noise" technology | Reduces parasitic oscillation and ringing during clamping, preserving signal fidelity on high-speed serial links. |
| Wave and reflow solderable | Supports standard Pb-free reflow profiles (peak ≤260 °C) and wave soldering without delamination or parametric shift. |
| UL 94 V-0 molding compound | Ensures flame-retardant housing for safety-critical automotive and medical equipment mounting environments. |
Applications
| Automotive Infotainment Display Interface | Industrial USB-C Data Port |
|---|---|
|
Use Scenario: Protecting LVDS or FPD-Link III video signals between head unit and TFT display in vehicles exposed to ESD from user interaction and harness coupling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed inline on differential video pairs to clamp transients before reaching serializer/deserializer ICs. Use Value: 144 pF capacitance avoids skew between differential lanes; ±30 kV ESD rating ensures compliance with ISO 10605 for automotive electronics. |
Use Scenario: Safeguarding USB-C CC, SBU, and high-speed data lanes (TX/RX) in factory automation HMIs where hot-plug events and cable discharge induce surges. IC Role / Device Role / Timing Role: Standalone ESD suppressor mounted adjacent to connector, providing first-line defense before USB controller PHY. Use Value: 95 V clamping voltage protects 3.3 V/5 V PHYs rated to 75 V abs max; DO-219AB footprint allows routing beneath connector for minimal trace inductance. |
| Telecom Power Over Ethernet (PoE) Interface | Medical Patient Monitor Sensor Port |
|
Use Scenario: Transient suppression on 48 V PoE data lines (e.g., IEEE 802.3af/at) subject to lightning-induced surges and switching noise from DC-DC converters. IC Role / Device Role / Timing Role: Primary surge clamp on powered device (PD) input, coordinated with secondary TVS and filter components. Use Value: 58 V VRWM matches PoE Class 3/4 operating range; 200 W pulse rating handles 10/1000 μs surges per IEC 61000-4-5 Level 3. |
Use Scenario: ESD protection for analog sensor inputs (e.g., ECG, SpO₂) connected via detachable cables in clinical environments where staff handling generates frequent contact discharges. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 μA) unidirectional clamp on front-end amplifier inputs to prevent latch-up or offset drift. Use Value: 144 pF capacitance avoids filtering physiological signals below 100 Hz; AEC-Q101 qualification validates long-term stability under thermal cycling. |
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; 1.5 mm taller (2.6 mm); 220 pF capacitance; same VRWM/VC/IPPM ratings. | Higher profile limits use in ultra-thin devices; higher capacitance restricts use on >100 Mbps interfaces. | Select when board space permits larger footprint and legacy SMA tooling is in place. |
| TPD2E007DRYR | Quad-channel, bidirectional, 0.95 pF per channel; 5.5 V VRWM; not AEC-Q101 qualified; QFN-6 package. | Designed for high-speed digital buses (USB 2.0, HDMI); unsuitable for 48 V PoE or automotive power-line protection. | Choose only for low-voltage, multi-line, ultra-low-capacitance needs - not a direct functional replacement for SMF58A-E3-08. |
Compared with SMAJ58A-E3/57T and TPD2E007DRYR, the SMF58A-E3-08 uniquely balances high-voltage standoff (58 V), automotive qualification, and compact DO-219AB packaging - making it optimal for space-constrained, high-reliability 48 V system interfaces where both surge energy and ESD immunity are critical.
Availability
SMF58A-E3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial USB-C data ports, and telecom PoE interfaces requiring stable component supply, AEC-Q101 compliance, and consistent lead-free termination performance.
Supply support for SMF58A-E3-08 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 and passive components, specializing in high-reliability, application-optimized solutions for automotive, industrial, and computing markets.
The SMF series targets high-energy, low-capacitance ESD protection for automotive and industrial interfaces - engineered to meet AEC-Q101, IEC 61000-4-2, and IEC 61000-4-5 standards in compact surface-mount packages.
FAQ
What is the maximum clamping voltage of the SMF58A-E3-08 under specified surge conditions?
The SMF58A-E3-08 has a maximum reverse clamping voltage (VC) of 95 V when subjected to its rated peak pulse current of 95 A using a 10/1000 μs waveform. This value is measured per the Electrical Characteristics table in Vishay's Document Number 85881 (Rev. 2.4), and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does the SMF58A-E3-08 meet automotive qualification standards?
Yes, the SMF58A-E3-08 is AEC-Q101 qualified, as confirmed in Vishay's official documentation. It passes human body model (HBM) testing at Class H3B (>8 kV), operates across -65 °C to +175 °C, and meets temperature cycling, mechanical shock, and humidity resistance requirements defined in the AEC-Q101 stress test standard - making it suitable for under-hood and infotainment applications.
What is the capacitance of the SMF58A-E3-08 and how does it affect high-speed signal lines?
The SMF58A-E3-08 exhibits 144 pF typical junction capacitance at 0 V bias and 1 MHz, per Vishay's Electrical Characteristics table. This value is low enough to avoid significant signal attenuation or timing skew on USB 2.0 (480 Mbps) and CAN FD (5 Mbps) lines, but not suitable for USB 3.0 or PCIe Gen3, where sub-1 pF devices are required. Layout best practices (short traces, ground plane proximity) further mitigate capacitive loading effects.
Can the SMF58A-E3-08 be used in bidirectional protection configurations?
No - the SMF58A-E3-08 is a unidirectional TVS diode, intended for circuits with a well-defined ground reference and polarity-sensitive signal paths. Its electrical characteristics (e.g., reverse breakdown, clamping behavior) are specified only for reverse-biased operation. For bidirectional protection, a dedicated bidirectional part such as SMBJ58A or a dual-diode array must be selected instead.
What is the package type and soldering compatibility of the SMF58A-E3-08?
The SMF58A-E3-08 uses the DO-219AB package (also referenced as SOD-123W-compatible), with dimensions of 3.9 mm × 1.9 mm × 1.08 mm. It is fully compatible with standard Pb-free reflow soldering profiles (peak temperature ≤260 °C) and wave soldering processes, and carries MSL level 1 rating per J-STD-020 - eliminating bake requirements prior to assembly.
SMF58A-E3-08 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-E3-08 FAQ
1.How can I place an order for SMF58A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF58A-E3-08 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-E3-08 reliable?
The price and inventory of SMF58A-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF58A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF58A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF58A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF58A-E3-08?
SMF58A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF58A-E3-08 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-E3-08?
For technical support, including SMF58A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF58A-E3-08 requirements.
6.How does Aetrix verify that SMF58A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF58A-E3-08 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-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF58A-E3-08?
All SMF58A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF58A-E3-08, 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-E3-08 part is unused and in its original packaging.
Return procedure for SMF58A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF58A-E3-08 Tags
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