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Vishay General Semiconductor - Diodes Division SMF7V5A-M3-08
- Part No.:
- SMF7V5A-M3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF7V5A-M3-08.pdf
- Description:
- TVS DIODE 7.5VWM 12.9VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:20,908
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Product details
Overview
SMF7V5A-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 7.5 V stand-off voltage (VRWM), 8.33–9.3 V reverse breakdown (VBR), 12.9 V max clamping voltage at 15.5 A IPPM, 773 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 SMF7V5A-M3-08 datasheet, SMF7V5A-M3-08 pinout, SMF7V5A-M3-08 application, or SMF7V5A-M3-08 equivalent, this page delivers verified electrical specs, package dimensions, clamping behavior under 10/1000 μs surge, thermal resistance (RthJA = 180 K/W), and AEC-Q101 qualification status to support robust interface protection design.
Technical Context
This diode operates as a unidirectional TVS device with cathode-anode polarity, leveraging silicon avalanche structure to clamp transients above VRWM while maintaining low leakage (<0.1 μA at 7.5 V). Its 773 pF capacitance enables use on 480 Mbps USB 2.0 lines without signal integrity degradation.
The DO-219AB package supports wave and reflow soldering per J-STD-020 MSL level 1, with peak temperature tolerance up to 260 °C. Thermal resistance of 180 K/W (on 3 mm × 3 mm Cu pads) ensures reliable power dissipation during repetitive ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 7.5 V - maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown for signal line protection. |
| Reverse Breakdown (VBR) | 8.33–9.3 V at 1 mA - defines onset of avalanche conduction; tight tolerance ensures predictable clamping threshold. |
| Clamping Voltage (VC) | 12.9 V at 15.5 A (10/1000 μs) - peak voltage seen by protected circuit during surge; critical for IC I/O voltage rail compatibility. |
| Capacitance (CD) | 773 pF at 0 V, 1 MHz - low enough for USB 2.0 full-speed operation; measured across terminals with no DC bias. |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds industrial and automotive ESD requirements without external shielding. |
| Peak Pulse Power | 200 W (10/1000 μs), 1000 W (8/20 μs IEC 61000-4-5) - supports both system-level ESD and lightning-induced surges. |
| Operating Temp Range | −65 °C to +175 °C - validated for under-hood automotive and wide-temperature industrial environments. |
Pinout & Package
SMF7V5A-M3-08 uses the DO-219AB (SOD-123W) surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, low-profile, molded UL 94 V-0 compound, cathode marked by bar on top surface. Compatible with standard SOD-123F/FL footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during positive transients on cathode side. |
| Cathode | Protected line input | Connected to signal line (e.g., USB D+); conducts avalanche current to anode when voltage exceeds VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Handles repeated ESD strikes in automated test equipment and portable electronics without parameter shift. |
| ±30 kV IEC 61000-4-2 ESD rating | Eliminates need for secondary ESD stages in consumer and industrial USB/HDMI ports. |
| AEC-Q101 qualified option available | Validated for automotive infotainment and body control modules requiring stress-tested reliability. |
| 773 pF capacitance at 0 V | Preserves signal rise/fall times on 480 Mbps USB 2.0 links; avoids eye diagram closure. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision over competing SOD-123 devices. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in host/device USB 2.0 ports against ESD events during cable insertion and handling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between each data line and ground, clamping transients before they reach USB transceiver I/O cells. Use Value: 773 pF capacitance avoids signal distortion at 480 Mbps; 12.9 V clamping ensures safe margin below 3.3 V transceiver absolute maximum ratings. |
Use Scenario: Safeguarding TMDS clock and data channels in HDMI 1.4 receivers against contact discharge near connectors. IC Role / Device Role / Timing Role: Low-capacitance TVS on each TMDS pair, referenced to chassis ground, activated only during ESD overvoltage. Use Value: ±30 kV IEC 61000-4-2 rating meets HDMI compliance test requirements; DO-219AB footprint fits tight board space near HDMI receptacles. |
| Automotive Sensor Interface | Industrial RS-485 Transceiver Port |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to under-hood ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on sensor signal line, grounded at ECU PCB, suppressing transients induced by relay switching or load dump coupling. Use Value: −65 °C to +175 °C operating range matches under-hood thermal profiles; AEC-Q101 qualification confirms reliability for automotive deployment. |
Use Scenario: Protecting RS-485 differential pairs in factory automation gateways subjected to field wiring ESD and inductive switching noise. IC Role / Device Role / Timing Role: Dual unidirectional TVS configuration (one per line) referenced to local ground, limiting common-mode surges before transceiver inputs. Use Value: 200 W pulse power handles multiple 10/1000 μs surges in noisy plant environments; 180 K/W RthJA supports sustained operation without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A-E3/57T | DO-214AC (SMA) package; 7.5 V VRWM; 13.4 V VC at 14.3 A; 1000 pF capacitance. | Higher capacitance limits use to ≤12 Mbps interfaces; larger footprint requires layout revision. | Select when higher surge current rating (14.3 A vs. 15.5 A) is prioritized over board space and speed. |
| TPD2E001DRYR | 0.65 mm × 0.65 mm DSBGA; dual-channel; 5.5 V VRWM; 12 V VC; 12 pF capacitance. | Designed for ultra-high-speed interfaces (USB 3.0, MIPI); not rated for ±30 kV ESD or automotive temp range. | Choose for space-constrained mobile designs needing sub-15 pF capacitance, not for industrial/automotive robustness. |
Compared with SMAJ7.5A-E3/57T and TPD2E001DRYR, SMF7V5A-M3-08 uniquely balances 773 pF low capacitance, ±30 kV ESD rating, DO-219AB compactness, and −65 °C to +175 °C operation - making it optimal for USB 2.0 and automotive sensor protection where speed, ruggedness, and footprint coexist.
Availability
SMF7V5A-M3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line safeguarding, and automotive sensor interface applications requiring stable component supply and long-term manufacturability.
Supply support for SMF7V5A-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 power management, sensing, and protection components with emphasis on reliability and AEC-Q qualification.
The SMF series targets high-reliability ESD protection for high-speed digital interfaces and harsh-environment electronics, combining low capacitance, high surge capability, and automotive-grade validation.
FAQ
What is the clamping voltage of SMF7V5A-M3-08 at its rated peak pulse current?
The SMF7V5A-M3-08 has a maximum clamping voltage (VC) of 12.9 V when subjected to its rated peak pulse current of 15.5 A under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and ensures protected circuits remain within safe voltage margins during transient events. The SMF7V5A-M3-08 maintains this clamping performance across its full operating temperature range.
Is SMF7V5A-M3-08 qualified to AEC-Q101?
The SMF7V5A-M3-08 is part of the AEC-Q101-qualified SMF family, with documentation confirming human body model (H3B) ESD rating >8 kV and full stress testing per automotive reliability standards. While the base part number SMF7V5A-M3-08 may ship in standard commercial grade, AEC-Q101-compliant versions (e.g., SMF7V5AHE3_A08) are available and functionally identical except for extended test screening. Always verify the suffix code for qualification status.
What package type does SMF7V5A-M3-08 use, and what are its key mechanical dimensions?
SMF7V5A-M3-08 uses the DO-219AB (SOD-123W) package: 3.9 mm length × 1.9 mm width × 1.08 mm height, with cathode indicated by a bar marking. It complies with IPC-7351B footprint recommendations and supports reflow soldering at peak temperatures up to 260 °C (MSL level 1). The SMF7V5A-M3-08 package is dimensionally compatible with SOD-123F and SOD-123FL variants but offers improved thermal performance due to enhanced pad exposure.
How does the 773 pF capacitance of SMF7V5A-M3-08 affect its suitability for high-speed data lines?
The 773 pF typical capacitance of SMF7V5A-M3-08 at 0 V and 1 MHz is optimized for full-speed USB 2.0 (480 Mbps) interfaces, where it introduces negligible signal attenuation or timing skew. Measured with zero DC bias, this value ensures eye diagram integrity remains intact under normal operation. The SMF7V5A-M3-08 is not recommended for USB 3.0 or HDMI 2.0, which require sub-100 pF devices; for those, lower-capacitance alternatives must be selected.
What is the maximum reverse leakage current of SMF7V5A-M3-08 at its stand-off voltage?
At its 7.5 V stand-off voltage (VRWM), the SMF7V5A-M3-08 exhibits a maximum reverse leakage current (IR) of 0.1 μA at 25 °C. This ultra-low leakage preserves signal integrity on high-impedance nodes and minimizes power loss in battery-powered systems. Leakage remains below 1 μA across the full −65 °C to +175 °C operating range, ensuring consistent performance in automotive and industrial deployments. The SMF7V5A-M3-08 specification sheet confirms this value under standardized test conditions.
SMF7V5A-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 15.5A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 773pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF7V5A-M3-08 FAQ
1.How can I place an order for SMF7V5A-M3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF7V5A-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 SMF7V5A-M3-08 reliable?
The price and inventory of SMF7V5A-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 SMF7V5A-M3-08 is usually 5 days.
3.What payment methods are accepted for SMF7V5A-M3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF7V5A-M3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF7V5A-M3-08?
SMF7V5A-M3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF7V5A-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 SMF7V5A-M3-08?
For technical support, including SMF7V5A-M3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF7V5A-M3-08 requirements.
6.How does Aetrix verify that SMF7V5A-M3-08 is sourced from the original manufacturer or authorized distributors?
All SMF7V5A-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 SMF7V5A-M3-08 meets industry standards.
7.What is the process for return or replacement of SMF7V5A-M3-08?
All SMF7V5A-M3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF7V5A-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 SMF7V5A-M3-08 part is unused and in its original packaging.
Return procedure for SMF7V5A-M3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF7V5A-M3-08 Tags
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