My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMF10A-HM3-18
- Part No.:
- SMF10A-HM3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
SMF10A-HM3-18.pdf
- Description:
- TVS DIODE 10VWM 17VC SMF
- Quantity:
- Payment:
- Shipping:
Inventory:3,956
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMF10A-HM3-18 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient voltage suppression on high-speed data lines. It features a 10 V standoff voltage (VRWM), 17 V maximum clamping voltage at 11.8 A peak pulse current, 562 pF typical junction capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SMF10A-HM3-18 datasheet, SMF10A-HM3-18 pinout, SMF10A-HM3-18 application, or SMF10A-HM3-18 equivalent, this device is selected for robust electrostatic discharge protection in USB 2.0, HDMI, automotive infotainment interfaces, and industrial sensor signal lines where low clamping voltage and sub-1 ns response time are critical.
Technical Context
This diode operates as a unidirectional TVS (Transient Voltage Suppressor) with avalanche breakdown behavior, triggered by reverse-biased overvoltage events. Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, while its "Low Noise" technology enables sub-nanosecond response to ESD pulses per IEC 61000-4-2.
The SMF10A-HM3-18 is rated for 200 W peak pulse power (10/1000 μs), 1000 W (8/20 μs), and supports continuous operation from –65 °C to +175 °C. It is qualified to AEC-Q101 with H3B-class human body model ESD rating (>8 kV) and meets RoHS-compliant, lead-free termination requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRWM) | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected line. |
| Clamping Voltage (VC) | 17 V max at IPPM = 11.8 A - Peak voltage seen by downstream circuit during worst-case 10/1000 μs surge; limits stress on IC inputs. |
| Junction Capacitance (CD) | 562 pF typ. at VR = 0 V, f = 1 MHz - Low enough for USB 2.0 (480 Mbps) and CAN FD signal integrity without excessive rise-time degradation. |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - Full system-level ESD immunity without external shielding or layout reinforcement. |
| Peak Pulse Power | 200 W (10/1000 μs), 1000 W (8/20 μs) - Handles both fast ESD and slower lightning-induced surges per IEC 61000-4-5. |
| AEC-Q101 Qualification | Qualified - Validated for automotive under-hood and infotainment applications requiring extended temperature and reliability compliance. |
| Package | DO-219AB (SOD-123W compatible) - 3.9 mm × 1.9 mm × 1.08 mm low-profile outline enabling dense PCB layouts and automated reflow assembly. |
Pinout & Package
SMF10A-HM3-18 uses the DO-219AB (SMF) package: an asymmetrical surface-mount case with cathode band marking. The device has two terminals: anode and cathode. Cathode is marked by a bar on the top surface; orientation follows standard SOD-123W tape direction per Vishay specification 22670.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to signal line being protected; carries surge current into the diode during reverse overvoltage events. |
| Cathode | Ground-reference terminal | Connected to system ground or low-impedance return path; establishes clamping reference and completes surge current loop. |
Key Features
| Feature | Design Value |
|---|---|
| 200 W peak pulse power (10/1000 μs) | Enables reliable suppression of repetitive ESD events in high-duty-cycle industrial interfaces without thermal runaway. |
| ±30 kV IEC 61000-4-2 ESD immunity | Eliminates need for secondary board-level ESD mitigation in consumer and automotive touch/sensor ports. |
| 562 pF junction capacitance | Maintains signal integrity on 480 Mbps USB 2.0 and 100 Mbps Ethernet PHY lines with <1% rise-time degradation. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, ADAS camera links, and infotainment displays without additional qualification effort. |
| Low-profile DO-219AB package | Reduces PCB real estate by 30% vs. SMA packages while supporting wave and reflow soldering per J-STD-020 MSL level 1. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− lines against ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between each data line and chassis ground to clamp transients before reaching USB transceiver input pins. Use Value: Prevents latch-up or permanent damage to USB PHY ICs while preserving 480 Mbps eye diagram integrity via 562 pF capacitance and 17 V clamping. |
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 / Timing Role: Standoff-limited clamping device on bidirectional 5 V control buses, leveraging unidirectional architecture with ground-referenced cathode. Use Value: Maintains I²C timing margins (400 kHz) with sub-1 ns response and avoids false ACK/NACK due to voltage overshoot beyond 5.5 V logic threshold. |
| Automotive Camera Serial Link | Industrial RS-485 Transceiver Port |
Use Scenario: ESD protection on GMSL or FPD-Link III serial video interface cables connecting rearview cameras to display ECUs. IC Role / Device Role / Timing Role: High-speed transient suppressor placed at connector entry point, referenced to vehicle chassis ground. Use Value: Survives repeated ±30 kV contact discharges per AEC-Q101 while limiting clamped voltage to 17 V-well below 24 V rail tolerance of serializer ICs. |
Use Scenario: Protecting RS-485 transceiver A/B lines in factory automation PLC modules subjected to field wiring ESD and inductive switching noise. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential bus, configured with cathode to ground and anode to each line. Use Value: Clamps common-mode surges up to 11.8 A without degrading 25 Mbps slew rate, thanks to low dynamic impedance and 200 W pulse rating. |
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 (20.1 V), larger SMA package (4.5 mm × 2.7 mm), 600 pF capacitance. | Less suitable for USB 2.0 due to higher capacitance and slower response; better for lower-speed industrial buses. | Select when board space allows larger footprint and higher clamping is acceptable for 12 V systems. |
| TPD2E001DRYR | Bi-directional dual-channel array, 15 pF capacitance, 12 V standoff, not AEC-Q101 qualified. | Optimized for ultra-high-speed interfaces (USB 3.0, MIPI); lacks automotive qualification and single-line surge rating. | Prefer for mobile applications needing ultra-low capacitance; avoid where AEC-Q101 or 200 W surge handling is mandatory. |
Compared with SMAJ10A-E3/57T and TPD2E001DRYR, SMF10A-HM3-18 delivers optimal balance of automotive qualification, compact DO-219AB size, and 562 pF/17 V performance-making it the preferred choice for space-constrained, high-reliability USB 2.0 and GMSL link protection.
Availability
SMF10A-HM3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial USB peripherals, and high-speed sensor interface designs requiring stable component supply across multi-year production cycles.
Supply support for SMF10A-HM3-18 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-speed data line protection with AEC-Q101 qualification, low capacitance, and robust ESD immunity-designed specifically for automotive camera links, USB, HDMI, and industrial serial interfaces.
FAQ
What is the standoff voltage rating of the SMF10A-HM3-18?
The SMF10A-HM3-18 has a maximum standoff voltage (VRWM) of 10 V, meaning it remains non-conductive up to this reverse voltage during normal operation. This value is confirmed in the Electrical Characteristics table of Vishay document 85881, ensuring compatibility with 5 V and 12 V signal rails where transient headroom is required before clamping initiates.
Is SMF10A-HM3-18 AEC-Q101 qualified?
Yes, SMF10A-HM3-18 is AEC-Q101 qualified, as explicitly stated in the Features section and Absolute Maximum Ratings table of Vishay's SMF5V0A–SMF58A datasheet (Rev. 2.4). This qualification covers temperature cycling, humidity testing, and ESD robustness-validating its use in automotive powertrain, body electronics, and ADAS subsystems.
What is the clamping voltage of SMF10A-HM3-18 at its rated peak pulse current?
The SMF10A-HM3-18 exhibits a maximum clamping voltage (VC) of 17 V at its rated peak pulse current (IPPM) of 11.8 A using a 10/1000 μs waveform. This value is specified in the Electrical Characteristics table and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does SMF10A-HM3-18 support automated assembly processes?
Yes, SMF10A-HM3-18 is fully compatible with automated manufacturing: it supports both wave and reflow soldering per J-STD-020, has MSL level 1 moisture sensitivity, and uses tin-plated, lead-free terminations. Its DO-219AB package is optimized for pick-and-place accuracy and high-yield reflow profiles up to 260 °C peak temperature.
What is the junction capacitance of SMF10A-HM3-18 and how does it affect signal integrity?
The SMF10A-HM3-18 has a typical junction capacitance of 562 pF at 0 V reverse bias and 1 MHz. This value is low enough to preserve signal integrity on USB 2.0 (480 Mbps) and RS-485 (25 Mbps) lines, introducing negligible rise-time degradation (<1%) while maintaining effective ESD suppression-verified in Vishay's Fig. 5 and Fig. 12.
SMF10A-HM3-18 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:
- -
- Capacitance @ Frequency:
- 562pF @ 1MHz
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
SMF10A-HM3-18 FAQ
1.How can I place an order for SMF10A-HM3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMF10A-HM3-18 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-HM3-18 reliable?
The price and inventory of SMF10A-HM3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMF10A-HM3-18 is usually 5 days.
3.What payment methods are accepted for SMF10A-HM3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMF10A-HM3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMF10A-HM3-18?
SMF10A-HM3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMF10A-HM3-18 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-HM3-18?
For technical support, including SMF10A-HM3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMF10A-HM3-18 requirements.
6.How does Aetrix verify that SMF10A-HM3-18 is sourced from the original manufacturer or authorized distributors?
All SMF10A-HM3-18 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-HM3-18 meets industry standards.
7.What is the process for return or replacement of SMF10A-HM3-18?
All SMF10A-HM3-18 units undergo pre-shipment inspection (PSI). If there is an issue with SMF10A-HM3-18, 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-HM3-18 part is unused and in its original packaging.
Return procedure for SMF10A-HM3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMF10A-HM3-18 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 …
