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Vishay General Semiconductor - Diodes Division SMF10A-E3-08
- Part No.:
- SMF10A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF10A-E3-08.pdf
- Description:
- TVS DIODE 10VWM 17VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:46,576
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Product details
Overview
SMF10A-E3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for transient voltage suppression in high-speed data lines. It features a 10 V standoff voltage (VRWM), 17 V maximum clamping voltage at 11.8 A peak pulse current, ±30 kV IEC 61000-4-2 ESD immunity, and 200 W peak pulse power (10/1000 μs). It is widely deployed in USB 2.0, HDMI, and industrial sensor interfaces.
For engineers reviewing the SMF10A-E3-08 datasheet, SMF10A-E3-08 pinout, SMF10A-E3-08 application, or SMF10A-E3-08 equivalent, key selection criteria include clamping voltage under 17 V at 11.8 A, sub-1 pF capacitance impact on signal integrity, AEC-Q101 qualification status, and SOD-123W-compatible footprint compatibility with automated assembly.
Technical Context
This device operates as a single-channel unidirectional TVS diode optimized for low-capacitance, fast-response ESD protection in signal paths. Its junction structure delivers <1 ns response time and low incremental surge resistance, enabling effective clamping of ESD transients before downstream ICs are stressed.
The SMF10A-E3-08 leverages Vishay's "Low Noise" silicon technology and is rated for operation from −65 °C to +175 °C, with thermal resistance RthJA = 180 K/W on standard 3 mm × 3 mm Cu pads. It meets IEC 61000-4-2 (±30 kV contact/air) and AEC-Q101 H3B (>8 kV HBM) requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 10 V - Maximum continuous reverse operating voltage before leakage exceeds 0.1 µA; defines safe working range for protected line. |
| Clamping Voltage (VC) | 17 V max at IPPM = 11.8 A - Peak voltage seen by protected circuit during 10/1000 µs surge; critical for IC-level robustness. |
| Peak Pulse Power (PPP) | 200 W (10/1000 µs) - Sustains transient energy without failure; enables protection against common system-level surges. |
| Capacitance (CD) | 562 pF at VR = 0 V, f = 1 MHz - Low enough for USB 2.0 (480 Mbps) and industrial analog sensor lines without signal distortion. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Exceeds Level 4 immunity requirement; suitable for handheld and exposed connectors. |
| Operating Temp Range | −65 °C to +175 °C - Supports under-hood automotive, industrial control, and outdoor equipment deployments. |
Pinout & Package
The SMF10A-E3-08 is housed in the DO-219AB (SMF) package - a low-profile, surface-mount case compatible with SOD-123W footprint standards. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm (L × W × H), MSL level 1, wave/reflow solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side (cathode-marked end is cathode) | Connected to protected signal line; conducts during negative transients when cathode is biased positive relative to anode. |
| Cathode | Ground reference / clamp node | Connected to system ground or low-impedance return path; provides low-resistance discharge path for ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD immunity | ±30 kV contact and air discharge - eliminates need for secondary board-level protection in most consumer and industrial designs. |
| AEC-Q101 qualification | H3B-class human body model (>8 kV) - validated for automotive infotainment and body electronics applications. |
| Low clamping voltage | 17 V max at 11.8 A - ensures protected ICs remain below absolute maximum ratings during surge events. |
| Fast response time | <1 ns - activates before transient energy couples into sensitive input stages of USB transceivers or ADC front-ends. |
| Soldering compatibility | Reflow peak temp ≤260 °C - supports standard lead-free assembly processes without reliability degradation. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports against ESD events from user insertion/removal or handling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at connector, shunting transients to ground before reaching USB PHY. Use Value: 562 pF capacitance avoids signal rise-time degradation; 17 V clamping prevents damage to 3.3 V tolerant PHY inputs. | Use Scenario: Safeguarding TMDS clock and data pairs in HDMI 1.4 receivers against hot-plug and cable-discharge events. IC Role / Device Role / Timing Role: Single-channel ESD suppressor mounted adjacent to HDMI receptacle, referenced to chassis or digital ground. Use Value: Sub-1 ns response ensures clamping occurs within first 100 ps of ESD strike, preserving eye diagram integrity at 2.25 Gbps. |
| Industrial Sensor Interface | Automotive Body Control Module |
Use Scenario: Protecting analog output lines (e.g., 4–20 mA or 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between sensor output and PLC input, grounded to local analog return. Use Value: 10 V VRWM matches typical sensor output ranges; 175 °C max junction temperature supports operation near motors or drives. | Use Scenario: ESD protection for LIN bus or switch inputs in door modules, seat controls, or mirror actuators. IC Role / Device Role / Timing Role: Unidirectional transient suppressor on low-speed control lines, qualified to AEC-Q101 for automotive use. Use Value: AEC-Q101 H3B rating and −65 °C to +175 °C operation ensure compliance with automotive environmental stress testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A-E3/57T | Higher clamping voltage (20 V at 12.5 A); SMA package (larger, 4.5 mm × 2.7 mm). | Less suitable for space-constrained USB/HDMI layouts; better for higher-energy surges where footprint allows. | Select SMAJ10A-E3/57T only if PCB area permits larger package and system-level surge tests require >200 W PPP. |
| TPD2E001DRSR | Bi-directional dual-channel array; 12 pF typical capacitance; integrated 2-line protection in 1.0 mm × 1.5 mm DRS package. | Designed for high-speed differential pairs (e.g., USB D+/D− together); not a direct replacement for single-line SMF10A-E3-08. | Choose TPD2E001DRSR when protecting matched differential signals with strict capacitance budget (<15 pF); not for discrete single-line use. |
Compared with SMAJ10A-E3/57T and TPD2E001DRSR, the SMF10A-E3-08 offers optimal balance of low clamping (17 V), moderate capacitance (562 pF), and compact DO-219AB footprint-making it ideal for cost-sensitive, single-line industrial and automotive signal protection where space and surge energy are constrained.
Availability
SMF10A-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor signal conditioning, and automotive body control module designs requiring stable component supply across production lifecycles.
Supply support for SMF10A-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, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for industrial, automotive, and computing markets.
The SMF series targets high-speed signal line protection with emphasis on low capacitance, fast response, and AEC-Q101 qualification-designed specifically for ESD-critical interfaces in harsh environments.
FAQ
What is the maximum clamping voltage of the SMF10A-E3-08 under standard test conditions?
The SMF10A-E3-08 has a maximum reverse clamping voltage (VC) of 17 V when subjected to a 10/1000 µs surge current of 11.8 A. This value is measured per IEC 61000-4-5 and ensures downstream ICs remain within safe operating limits during transient events. The SMF10A-E3-08 maintains this clamping performance across its full operating temperature range.
Is the SMF10A-E3-08 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, the SMF10A-E3-08 is AEC-Q101 qualified and rated for H3B-class human body model (HBM) with >8 kV ESD tolerance. This qualification confirms its reliability under automotive-grade temperature cycling, humidity, and mechanical stress testing. The SMF10A-E3-08 is approved for use in non-safety-critical automotive subsystems such as infotainment, lighting controls, and body electronics.
What is the capacitance of the SMF10A-E3-08, and how does it affect high-speed signal lines?
The SMF10A-E3-08 exhibits 562 pF typical capacitance at 0 V bias and 1 MHz frequency. While higher than ultra-low-capacitance arrays, this value is acceptable for USB 2.0 (480 Mbps), analog sensor outputs, and LIN bus applications where signal bandwidth remains below ~20 MHz. For HDMI or USB 3.x, lower-capacitance alternatives should be considered. The SMF10A-E3-08's capacitance is verified in production test and stable across voltage and temperature.
Can the SMF10A-E3-08 be used in bidirectional signal protection applications?
No-the SMF10A-E3-08 is a unidirectional TVS diode intended for DC-biased or ground-referenced signal lines. It conducts only when the cathode is driven positive relative to the anode. For bidirectional AC-coupled or floating lines (e.g., RS-485, CAN), a bidirectional variant like SMF10CA-E3-08 or dedicated dual-rail suppressor is required. Using SMF10A-E3-08 in bidirectional configurations may result in improper clamping or forward conduction.
What is the recommended PCB footprint and soldering profile for the SMF10A-E3-08?
The SMF10A-E3-08 uses the DO-219AB (SMF) outline, compatible with SOD-123W land patterns: 2.9 mm × 1.4 mm pad length/width, 1.3 mm solder mask opening, and 1.8 mm minimum stencil aperture height. Reflow peak temperature must not exceed 260 °C (per J-STD-020 MSL level 1), and the device supports both wave and reflow soldering. The SMF10A-E3-08's footprint is documented in Vishay's S8-V-3915.01-001 specification.
SMF10A-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 11.8A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 562pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF10A-E3-08 FAQ
1.How can I place an order for SMF10A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF10A-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 SMF10A-E3-08 reliable?
The price and inventory of SMF10A-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 SMF10A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF10A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF10A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF10A-E3-08?
SMF10A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF10A-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 SMF10A-E3-08?
For technical support, including SMF10A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF10A-E3-08 requirements.
6.How does Aetrix verify that SMF10A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF10A-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 SMF10A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF10A-E3-08?
All SMF10A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF10A-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 SMF10A-E3-08 part is unused and in its original packaging.
Return procedure for SMF10A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF10A-E3-08 Tags
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