My Inquiry
My Account
Vishay SMF5V0A-HE3_A18
- Part No.:
- SMF5V0A-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF5V0A-HE3_A18.pdf
- Description:
- ESD PROTECTION DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,085
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF5V0A-HE3_A18 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in DO-219AB (SOD-123W) package, designed for low-capacitance transient suppression on 5 V signal lines. It delivers 200 W peak pulse power (10/1000 μs), clamps at ≤9.2 V under 21.7 A surge, and provides ±30 kV IEC 61000-4-2 ESD immunity - used in USB 2.0 data line protection.
For engineers reviewing the SMF5V0A-HE3_A18 datasheet, SMF5V0A-HE3_A18 pinout, SMF5V0A-HE3_A18 application, or SMF5V0A-HE3_A18 equivalent, this page details its verified clamping behavior, AEC-Q101 qualification status, SOD-123W footprint compatibility, and real-world ESD robustness for high-reliability interface protection.
Technical Context
This device operates as a single-channel unidirectional TVS diode with reverse standoff voltage of 5 V and breakdown voltage range 6.4–7.1 V at 10 mA. Its low 1120 pF capacitance at 0 V and fast response enable use on high-speed digital interfaces without signal integrity degradation.
Thermal resistance is 180 K/W when mounted on 3 mm × 3 mm Cu pads; it supports wave and reflow soldering per J-STD-020 MSL level 1, with peak temperature up to 260 °C. Junction temperature rating extends to +175 °C, supporting automotive under-hood deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - defines maximum continuous operating voltage before conduction begins on protected line |
| Breakdown Voltage Range | 6.4–7.1 V at 10 mA - ensures reliable triggering above normal 5 V rail while avoiding false trips |
| Max Clamping Voltage | 9.2 V at 21.7 A (10/1000 μs) - limits downstream IC stress during ESD events |
| Peak Pulse Power | 200 W (10/1000 μs) - sustains transient energy typical of IEC 61000-4-2 contact discharge |
| Capacitance | 1120 pF at 0 V, 1 MHz - compatible with USB 2.0 (480 Mbps) and other sub-1 Gbps interfaces |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 industrial requirement |
| AEC-Q101 Qualified | Yes - validated for automotive applications including infotainment and body electronics |
Pinout & Package
SMF5V0A-HE3_A18 uses the DO-219AB (SOD-123W) package: 3.9 mm × 1.9 mm × 1.08 mm, cathode-marked with bar, MSL level 1, RoHS-compliant, tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input side of protection path | Connected to protected signal line; conducts surge current toward ground during overvoltage |
| Cathode | Output side of protection path | Connected to system ground; establishes reference for clamping action and polarity-sensitive operation |
Key Features
| Feature | Design Value |
|---|---|
| Low incremental surge resistance | Enables tight clamping with minimal voltage overshoot during fast transients |
| "Low Noise" fast-response technology | Sub-nanosecond response time preserves signal fidelity on high-speed data lines |
| SOD-123W footprint compatibility | Direct drop-in replacement for legacy SOD-123F/FL packages without PCB redesign |
| AEC-Q101 qualification | Validated reliability for automotive-grade deployment in harsh thermal and vibration environments |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed consumer and industrial enclosures |
Applications
| USB 2.0 Data Lines | Automotive Infotainment Interfaces |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 ports against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and chassis ground, clamping transients before they reach USB transceiver IC. Use Value: 1120 pF capacitance avoids signal rise-time degradation at 480 Mbps; ±30 kV ESD rating prevents port failure in consumer and industrial docking stations. |
Use Scenario: Shielding LVDS or UART lines connecting head unit to display or touch controller in automotive cabins. IC Role / Device Role / Timing Role: ESD suppressor on bidirectional control bus, leveraging AEC-Q101 qualification for extended temperature operation (-65 °C to +175 °C). Use Value: 9.2 V clamping protects 5 V logic-level receivers from damage during ISO 10605 discharge events; DO-219AB package withstands mechanical shock in vehicle mounting. |
| Industrial HMI Touch Panels | Medical Patient Monitor Sensors |
Use Scenario: Guarding I²C or SPI communication lines between microcontroller and capacitive touch overlay in factory HMIs. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on 3.3–5 V buses, minimizing timing skew across multi-drop sensor networks. Use Value: 200 W pulse power handles repeated ESD strikes in high-touch environments; SOD-123W footprint enables dense layout on compact front-panel PCBs. |
Use Scenario: Safeguarding analog front-end inputs of patient monitor sensors exposed to clinical ESD sources (e.g., gloves, carts). IC Role / Device Role / Timing Role: Signal-line protector on low-noise sensor conditioning paths, where leakage current must remain below 5 μA at 5 V. Use Value: 5 μA max reverse leakage at VRWM ensures no DC loading on precision amplifiers; UL 94 V-0 compound meets medical enclosure flammability standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF5V0A-E3-18 | No AEC-Q101 qualification; identical electrical specs and DO-219AB package | Not approved for automotive use; suitable for commercial-grade USB or industrial control panels | Select when AEC-Q101 is not required and cost optimization is prioritized |
| TPD2E001DRYR | 2-channel, 15 pF capacitance, 5.5 V standoff, non-AEC-Q101, X2SON package | Better for high-speed USB 2.0 or HDMI; lower capacitance but lower surge rating (3 A IPPM) | Choose for space-constrained layouts needing dual-line protection with ultra-low capacitance |
Compared with SMF5V0A-HE3_A18, SMF5V0A-E3-18 offers identical protection performance without automotive qualification, while TPD2E001DRYR trades higher surge robustness for lower capacitance and dual-channel integration - making SMF5V0A-HE3_A18 optimal for cost-sensitive, high-energy ESD environments requiring AEC-Q101 compliance.
Availability
SMF5V0A-HE3_A18 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment systems, and industrial HMI touch panels requiring stable component supply and long-term lifecycle support.
Supply support for SMF5V0A-HE3_A18 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, and passive components for automotive, industrial, and computing markets.
The SMF series targets board-level ESD protection in space-constrained, high-surge environments - engineered for robustness, low capacitance, and automotive qualification without sacrificing manufacturability.
FAQ
What is the clamping voltage of SMF5V0A-HE3_A18 at its rated peak pulse current?
The SMF5V0A-HE3_A18 has a maximum clamping voltage of 9.2 V at 21.7 A peak pulse current (10/1000 μs waveform). This value is measured under standardized surge conditions and ensures protected downstream ICs experience limited overvoltage stress during ESD events. The clamping performance is consistent across its qualified operating temperature range.
Is SMF5V0A-HE3_A18 suitable for automotive applications?
Yes, SMF5V0A-HE3_A18 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronics. Its -65 °C to +175 °C operating range and DO-219AB package stability make it appropriate for infotainment, body control, and ADAS sensor interfaces.
What package type does SMF5V0A-HE3_A18 use, and is it compatible with standard SOD-123 footprints?
SMF5V0A-HE3_A18 uses the DO-219AB package (also marketed as SOD-123W), with dimensions 3.9 mm × 1.9 mm × 1.08 mm. It is mechanically compatible with SOD-123F and SOD-123FL land patterns, enabling drop-in replacement in existing designs without PCB modification - confirmed by Vishay's footprint recommendation and tape orientation documentation.
How does the capacitance of SMF5V0A-HE3_A18 affect high-speed signal integrity?
With 1120 pF typical capacitance at 0 V and 1 MHz, SMF5V0A-HE3_A18 is optimized for USB 2.0 (480 Mbps) and similar sub-1 Gbps interfaces. While higher than some ultra-low-capacitance TVS devices, this value introduces negligible rise-time degradation on 5 V logic lines and maintains signal eye margin in standard-length traces - validated in Vishay's application notes for interface protection.
What is the ESD immunity rating of SMF5V0A-HE3_A18, and how is it tested?
SMF5V0A-HE3_A18 achieves ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2, tested using the standard 150 pF/330 Ω network. This exceeds IEC Level 4 requirements and reflects its "Low Noise" fast-response architecture. Each SMF5V0A-HE3_A18 device is 100% tested for ESD performance during final electrical test.
SMF5V0A-HE3_A18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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 (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF5V0A-HE3_A18 FAQ
1.How can I place an order for SMF5V0A-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF5V0A-HE3_A18 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-HE3_A18 reliable?
The price and inventory of SMF5V0A-HE3_A18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF5V0A-HE3_A18 is usually 5 days.
3.What payment methods are accepted for SMF5V0A-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF5V0A-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF5V0A-HE3_A18?
SMF5V0A-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF5V0A-HE3_A18 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-HE3_A18?
For technical support, including SMF5V0A-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF5V0A-HE3_A18 requirements.
6.How does Aetrix verify that SMF5V0A-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All SMF5V0A-HE3_A18 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-HE3_A18 meets industry standards.
7.What is the process for return or replacement of SMF5V0A-HE3_A18?
All SMF5V0A-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF5V0A-HE3_A18, 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-HE3_A18 part is unused and in its original packaging.
Return procedure for SMF5V0A-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF5V0A-HE3_A18 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
