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Vishay General Semiconductor - Diodes Division SMF13A-E3-08
- Part No.:
- SMF13A-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF13A-E3-08.pdf
- Description:
- TVS DIODE 13VWM 21.5VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:54,307
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Product details
Overview
SMF13A-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 13 V stand-off voltage (VRWM), 21.5 A peak pulse current (IPPM) at 10/1000 μs, 21.5 V maximum clamping voltage (VC), and 423 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial I/O port protection.
For engineers reviewing the SMF13A-E3-08 datasheet, SMF13A-E3-08 pinout, SMF13A-E3-08 application, or SMF13A-E3-08 equivalent, this device is selected for robust ±30 kV IEC 61000-4-2 ESD immunity, AEC-Q101 qualification, low clamping ratio (VC/VRWM ≈ 1.65), and compatibility with automated SMT assembly using wave or reflow soldering per J-STD-020 MSL level 1.
Technical Context
The SMF13A-E3-08 operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transients above its reverse standoff voltage of 13 V. Its low incremental surge resistance ensures rapid response (<1 ns) and minimal voltage overshoot during ESD events.
It complies with IEC 61000-4-2 (±30 kV contact/air), IEC 61000-4-5 (1000 W at 8/20 μs), and AEC-Q101 (H3B human body model >8 kV), making it suitable for automotive infotainment interfaces and industrial control terminals where reliability under harsh ESD stress is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 13 V - defines maximum continuous operating voltage before clamping begins; sets safe margin below signal rail voltage. |
| Clamping Voltage (VC) | 21.5 V max at IPPM = 9.3 A - limits transient voltage seen by downstream ICs during 10/1000 μs surges. |
| Peak Pulse Current (IPPM) | 9.3 A at 10/1000 μs - quantifies surge-handling capability for common lightning-induced or inductive-switching transients. |
| Junction Capacitance (CD) | 423 pF at VR = 0 V, f = 1 MHz - impacts signal integrity on high-speed lines; acceptable for ≤480 Mbps USB 2.0 but not USB 3.0. |
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2) - exceeds Level 4 immunity requirements for consumer and automotive end equipment. |
| Package | DO-219AB (SOD-123W-compatible) - 3.9 × 1.9 × 1.08 mm low-profile outline enabling dense PCB layouts and automated placement. |
| Operating Temp Range | –65 °C to +175 °C - supports under-hood automotive and wide-temperature industrial deployments without derating. |
Pinout & Package
SMF13A-E3-08 uses the DO-219AB (SOD-123W-equivalent) surface-mount package: cathode-marked anode-cathode configuration in a low-profile, molded plastic case with gull-wing leads. Dimensions: 3.9 mm length × 1.9 mm width × 1.08 mm height. Compatible with standard SMT reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (marked side) | Input/line side | Connected to protected signal line; conducts during positive transients when referenced to ground. |
| Cathode (bar-marked) | Ground reference | Connected to system ground plane; provides low-impedance path for surge current during ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable protection against repetitive low-energy transients in industrial fieldbus nodes without thermal runaway. |
| "Low Noise" fast-response technology | Sub-nanosecond response time minimizes voltage overshoot during ESD strikes, preserving signal integrity on sensitive analog or digital inputs. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for infotainment and ADAS sensor interfaces. |
| MSL level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and cycle time for high-volume production. |
| UL 94 V-0 molding compound | Ensures flame-retardant behavior in safety-critical applications such as factory automation controllers and medical peripherals. |
Applications
| USB 2.0 Port Protection | HDMI Interface Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of embedded USB host/device ports from ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients before they reach the USB transceiver IC. Use Value: Maintains signal fidelity up to 480 Mbps while surviving ±30 kV contact discharge - critical for portable test equipment and industrial HMIs. | Use Scenario: Safeguarding TMDS clock and data channels in HDMI source/sink devices against electrostatic discharge during hot-plug events. IC Role / Device Role / Timing Role: Standoff-clamp TVS element placed inline with each differential pair, referenced to chassis ground. Use Value: 423 pF capacitance avoids significant signal degradation at 2.25 Gbps HDMI 1.3 rates, while 21.5 V clamping protects HDMI receiver input stages. |
| Automotive Infotainment I/O | Industrial RS-485 Transceiver Protection |
Use Scenario: Shielding auxiliary audio/video input jacks (e.g., AV-IN, composite video) in car head units from user-induced ESD. IC Role / Device Role / Timing Role: Single-channel unidirectional suppressor connected between signal trace and ground, rated for AEC-Q101 automotive qualification. Use Value: –65 °C to +175 °C operation enables direct mounting near connectors in non-climate-controlled vehicle compartments. | Use Scenario: Protecting RS-485 transceiver pins (A/B) in programmable logic controllers and motor drives exposed to factory floor ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional protection achieved via two SMF13A-E3-08 devices (anode-to-line, cathode-to-ground) per line, forming a low-capacitance clamp network. Use Value: 9.3 A IPPM rating handles combined ESD + surge energy from long cable runs, while 13 V VRWM aligns with RS-485 common-mode range. |
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 | DO-214AC (SMA) package; 1.9 mm height vs. SMF13A-E3-08's 1.08 mm; 1000 W peak power at 8/20 μs vs. 200 W at 10/1000 μs. | Higher profile limits use in ultra-thin consumer devices; better suited for higher-energy surges in power supply rails. | Select SMAJ13A-E3/57T when surge energy exceeds 10/1000 μs rating and board space allows taller package. |
| TPD2E001DRYR | 2-channel bidirectional array in SOT-553; 12 pF capacitance vs. 423 pF; 3.6 V VRWM vs. 13 V; integrated ESD protection for high-speed data lines. | Designed for USB 2.0/3.0, HDMI, and DisplayPort; not suitable for 13 V rail protection due to lower standoff voltage. | Choose TPD2E001DRYR for multi-line, low-capacitance protection where VRWM ≤ 5 V is acceptable and space is constrained. |
Compared with SMAJ13A-E3/57T and TPD2E001DRYR, SMF13A-E3-08 delivers optimal balance of low profile, 13 V standoff, and ±30 kV ESD immunity in a cost-effective single-diode solution - ideal for discrete protection of medium-voltage industrial and automotive signal lines where capacitance <500 pF is tolerable.
Availability
SMF13A-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment I/O safeguarding, and industrial RS-485 transceiver hardening requiring stable component supply across extended product lifecycles.
Supply support for SMF13A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power management, signal conditioning, and circuit 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 computing applications where compact size and AEC-Q101 compliance are essential.
FAQ
What is the maximum clamping voltage of SMF13A-E3-08 under specified test conditions?
The SMF13A-E3-08 has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 9.3 A using a 10/1000 μs waveform. This value is measured at the device terminals and represents the upper limit of voltage imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMF13A-E3-08 suitable for automotive applications?
Yes, SMF13A-E3-08 is AEC-Q101 qualified and rated for operation from –65 °C to +175 °C, making it suitable for automotive infotainment, body control modules, and sensor interfaces. Its ±30 kV IEC 61000-4-2 ESD immunity and DO-219AB package robustness meet stringent automotive environmental and reliability requirements.
What does the "E3-08" suffix indicate in SMF13A-E3-08?
The "E3" denotes lead (Pb)-free, RoHS-compliant terminations with tin plating; "08" specifies packaging in 3,000-piece 7-inch reels with 8 mm tape width and minimum order quantity of 30,000 pieces. This coding aligns with Vishay's standardized ordering nomenclature for surface-mount TVS diodes.
How does the 423 pF junction capacitance of SMF13A-E3-08 affect high-speed signal lines?
The 423 pF typical capacitance at 0 V bias limits SMF13A-E3-08 to applications with bandwidths ≤100 MHz - appropriate for USB 2.0 (480 Mbps) and RS-485, but unsuitable for USB 3.0 (5 Gbps) or HDMI 2.0 (6 Gbps), where sub-2 pF devices are required to avoid signal attenuation and jitter.
Can SMF13A-E3-08 be used for bidirectional transient protection?
No - SMF13A-E3-08 is a unidirectional TVS diode intended for DC-biased lines. For true bidirectional protection (e.g., AC-coupled or symmetrical signal lines), two SMF13A-E3-08 devices must be configured in series opposition, or a dedicated bidirectional part like SMBJ13CA should be selected instead.
SMF13A-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):
- 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-E3-08 FAQ
1.How can I place an order for SMF13A-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF13A-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 SMF13A-E3-08 reliable?
The price and inventory of SMF13A-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 SMF13A-E3-08 is usually 5 days.
3.What payment methods are accepted for SMF13A-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF13A-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF13A-E3-08?
SMF13A-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF13A-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 SMF13A-E3-08?
For technical support, including SMF13A-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF13A-E3-08 requirements.
6.How does Aetrix verify that SMF13A-E3-08 is sourced from the original manufacturer or authorized distributors?
All SMF13A-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 SMF13A-E3-08 meets industry standards.
7.What is the process for return or replacement of SMF13A-E3-08?
All SMF13A-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF13A-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 SMF13A-E3-08 part is unused and in its original packaging.
Return procedure for SMF13A-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF13A-E3-08 Tags
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