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Vishay General Semiconductor - Diodes Division SMF5V0A-HM3-08
- Part No.:
- SMF5V0A-HM3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF5V0A-HM3-08.pdf
- Description:
- TVS DIODE 5VWM 9.2VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:26,649
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Product details
Overview
SMF5V0A-HM3-08 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 5.0 V stand-off voltage (VRWM), 6.4 V minimum breakdown voltage (VBR), 21.7 A peak pulse current (IPPM) at 10/1000 μs, ±30 kV IEC 61000-4-2 ESD immunity, and 1120 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial sensor interface protection.
For engineers reviewing the SMF5V0A-HM3-08 datasheet, SMF5V0A-HM3-08 pinout, SMF5V0A-HM3-08 application, or SMF5V0A-HM3-08 equivalent, this device delivers verified AEC-Q101 qualification, low clamping voltage (9.2 V max at IPPM), and SOD-123W-compatible footprint - critical for automotive infotainment, industrial I/O, and space-constrained consumer electronics designs requiring robust ESD hardening without signal integrity degradation.
Technical Context
This diode operates as a unidirectional TVS (Transient Voltage Suppressor) with avalanche breakdown clamping behavior. Its low 1.08 mm profile and MSL Level 1 rating support automated reflow assembly on dense PCBs, while the 180 K/W thermal resistance enables reliable power dissipation under repetitive surge conditions.
The device implements Vishay's "Low Noise" technology for sub-nanosecond response time, ensuring clamping activation before sensitive downstream circuitry sustains damage. Its 5.0 V VRWM aligns with 3.3 V and 5 V logic rails, and its 9.2 V VC max at 21.7 A provides predictable overvoltage limiting during IEC 61000-4-5 8/20 μs surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VRWM) | 5.0 V - ensures no conduction during normal 3.3 V/5 V rail operation, preserving signal integrity |
| Breakdown Voltage (VBR) | 6.4–7.1 V at 10 mA - defines precise avalanche initiation threshold for repeatable clamping |
| Peak Pulse Current (IPPM) | 21.7 A at 10/1000 μs - supports robust protection against multi-pulse ESD events per IEC 61000-4-2 |
| Clamping Voltage (VC) | 9.2 V max at IPPM - limits transient voltage seen by protected IC to safe levels below 10 V |
| Junction Capacitance (CD) | 1120 pF at 0 V, 1 MHz - suitable for DC/low-speed interfaces; not recommended for >10 Mbps differential signaling |
| ESD Immunity | ±30 kV contact & air discharge (IEC 61000-4-2) - exceeds automotive and industrial immunity requirements |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including H3B human body model (>8 kV) |
Pinout & Package
SMF5V0A-HM3-08 uses the DO-219AB (SOD-123W) surface-mount package: 3.9 mm × 1.9 mm × 1.08 mm, cathode-bar marked, compatible with standard SOD-123F/FL footprints. The device has two terminals: anode and cathode - polarity-critical for unidirectional clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to protected signal line; conducts surge current toward cathode during reverse transient |
| Cathode | Ground-reference terminal | Connected to system ground or low-impedance return path; establishes clamping reference and enables fast turn-on |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables sustained clamping during multi-pulse ESD stress without thermal runaway |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for 3.3 V ICs |
| Wave and reflow solderable | Supports standard Pb-free reflow profiles up to 260 °C peak, eliminating hand-soldering dependency |
| AEC-Q101 qualified | Validated for automotive under-hood and infotainment applications with extended temperature cycling |
| UL 94 V-0 molding compound | Ensures flame-retardant PCB mounting in safety-critical industrial and transportation systems |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines from ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role: Unidirectional TVS diode placed between data line and chassis ground. Use Value: 1120 pF capacitance avoids signal rise-time degradation at 480 Mbps, while ±30 kV ESD rating prevents port latch-up or PHY damage. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in smart TVs and AV receivers exposed to user-handling ESD. IC Role / Device Role: Low-leakage clamping diode on 5 V-tolerant control bus lines. Use Value: 5.0 V VRWM matches HDMI 5 V supply rail; 0.1 μA max IR at VRWM prevents I²C pull-up current loss and bus contention. |
| Automotive Sensor Interfaces | Industrial RS-485 Transceivers |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules from cable-borne transients. IC Role / Device Role: Primary ESD clamp on single-ended signal paths before signal conditioning amplifiers. Use Value: AEC-Q101 qualification and -65 °C to +175 °C operating range ensure reliability across under-hood thermal cycles and load-dump transients. |
Use Scenario: Protecting RS-485 receiver inputs in factory automation PLCs connected to long, unshielded field wiring. IC Role / Device Role: Line-side transient suppressor on A/B differential pairs referenced to local ground. Use Value: 9.2 V clamping voltage keeps differential input within ±12 V common-mode limit of ISO 8482-compliant transceivers during 1 kV surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A-E3/57T | DO-214AC (SMA) package; 5.0 V VRWM; 23.5 A IPPM; 13.4 V VC max; 1500 pF CD | Larger footprint (4.5 × 2.7 mm); higher clamping voltage reduces margin for 3.3 V ICs | Choose when board space allows larger package and higher surge handling is prioritized over capacitance |
| TPD2E001DRYR | 2-channel, 0.8 pF dual-diode array in USON-6; 5.5 V VRWM; 4 A IPPM; 12 V VC max | Designed for ultra-high-speed interfaces (USB 3.0, DisplayPort); lower surge rating limits use to light-duty ESD only | Prefer for high-frequency differential pairs where <1 pF capacitance is mandatory, accepting reduced surge robustness |
Compared with SMAJ5.0A-E3/57T and TPD2E001DRYR, SMF5V0A-HM3-08 offers optimal balance: compact SOD-123W size, industry-leading ±30 kV ESD rating, and 1120 pF capacitance suitable for DC–480 Mbps links - making it ideal for cost-sensitive, space-constrained automotive and industrial control applications demanding proven AEC-Q101 reliability.
Availability
SMF5V0A-HM3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and consumer USB peripherals requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMF5V0A-HM3-08 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 automotive, industrial, and computing markets.
The SMF series targets high-volume ESD protection needs in harsh environments, with design focus on AEC-Q101 compliance, low-profile packaging, and consistent clamping performance across temperature and surge repetition rates.
FAQ
What is the maximum clamping voltage of SMF5V0A-HM3-08 under rated surge conditions?
The SMF5V0A-HM3-08 has a maximum reverse clamping voltage (VC) of 9.2 V when subjected to its rated peak pulse current of 21.7 A (10/1000 μs waveform). This value is measured at the device terminals and ensures protected downstream ICs experience no more than 9.2 V during worst-case ESD events - critical for safeguarding 3.3 V logic interfaces without overstressing input structures. The SMF5V0A-HM3-08 maintains this clamping performance across its full operating temperature range.
Is SMF5V0A-HM3-08 suitable for protecting high-speed USB 3.0 or PCIe signals?
No, SMF5V0A-HM3-08 is not suitable for USB 3.0 or PCIe signal protection due to its 1120 pF junction capacitance at 0 V, which would severely degrade signal integrity above ~10 Mbps. It is specifically characterized and optimized for DC, low-speed, and USB 2.0 (480 Mbps) applications where capacitance tolerance is relaxed. For USB 3.0 or PCIe, lower-capacitance alternatives such as TPD2E001DRYR (<1 pF) or specialized high-speed arrays must be used. The SMF5V0A-HM3-08 remains appropriate for USB 2.0 D+/D−, HDMI DDC, and industrial I/O lines.
Does SMF5V0A-HM3-08 meet automotive qualification standards?
Yes, SMF5V0A-HM3-08 is AEC-Q101 qualified and rated for human body model (HBM) Class H3B (>8 kV), making it approved for automotive applications including infotainment, body control modules, and sensor interfaces. Its operating temperature range of -65 °C to +175 °C, MSL Level 1 moisture sensitivity, and UL 94 V-0 flammability rating further support under-hood and cabin deployment. The SMF5V0A-HM3-08 datasheet explicitly confirms AEC-Q101 compliance per Rev. 2.4 (04-Jul-2023).
What is the marking code for SMF5V0A-HM3-08 on the device body?
The marking code for SMF5V0A-HM3-08 is "AE", as specified in the Vishay SMF5V0A–SMF58A datasheet Table "Electrical Characteristics". This two-character code appears adjacent to the cathode bar on the device top surface. The "AE" marking identifies the 5.0 V stand-off variant within the SMF family and is consistent across all packaging variants including SMF5V0A-HM3-08, SMF5V0A-E3-08, and SMF5V0A-HE3_A08. No date or location codes are included in the base marking for this part number.
Can SMF5V0A-HM3-08 be used in bidirectional signal protection?
No, SMF5V0A-HM3-08 is a unidirectional ESD protection diode and is not suitable for bidirectional signal lines without external biasing. Its electrical characteristics - including 5.0 V stand-off voltage and 6.4–7.1 V breakdown - are defined only for reverse-biased operation (cathode positive relative to anode). For bidirectional protection (e.g., RS-232, CAN, or symmetric analog lines), a dedicated bidirectional TVS like SMBJ5.0CA or a dual-diode array must be selected. Using SMF5V0A-HM3-08 on bidirectional paths risks forward conduction and signal distortion during normal operation.
SMF5V0A-HM3-08 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1120pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF5V0A-HM3-08 FAQ
1.How can I place an order for SMF5V0A-HM3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF5V0A-HM3-08 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 SMF5V0A-HM3-08 reliable?
The price and inventory of SMF5V0A-HM3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF5V0A-HM3-08 is usually 5 days.
3.What payment methods are accepted for SMF5V0A-HM3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF5V0A-HM3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF5V0A-HM3-08?
SMF5V0A-HM3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF5V0A-HM3-08 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 SMF5V0A-HM3-08?
For technical support, including SMF5V0A-HM3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF5V0A-HM3-08 requirements.
6.How does Aetrix verify that SMF5V0A-HM3-08 is sourced from the original manufacturer or authorized distributors?
All SMF5V0A-HM3-08 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 SMF5V0A-HM3-08 meets industry standards.
7.What is the process for return or replacement of SMF5V0A-HM3-08?
All SMF5V0A-HM3-08 units undergo pre-shipment inspection (PSI). If there is an issue with SMF5V0A-HM3-08, 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 SMF5V0A-HM3-08 part is unused and in its original packaging.
Return procedure for SMF5V0A-HM3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF5V0A-HM3-08 Tags
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